refactor OsmandSettings remove Enum

OsmAnd/src-google/net/osmand/plus/inapp/InAppPurchaseHelperImpl.java

@@ -23,6 +23,7 @@ import net.osmand.plus.inapp.InAppPurchases.InAppPurchase;
 import net.osmand.plus.inapp.InAppPurchases.InAppSubscription;
 import net.osmand.plus.inapp.InAppPurchasesImpl.InAppPurchaseLiveUpdatesOldSubscription;
 import net.osmand.plus.inapp.util.BillingManager;
+import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.srtmplugin.SRTMPlugin;
 import net.osmand.util.Algorithms;
@@ -407,7 +408,7 @@ public class InAppPurchaseHelperImpl extends InAppPurchaseHelper {
 					}
 				}
 			}
-			OsmandSettings.OsmandPreference<Long> subscriptionCancelledTime = ctx.getSettings().LIVE_UPDATES_PURCHASE_CANCELLED_TIME;
+			OsmandPreference<Long> subscriptionCancelledTime = ctx.getSettings().LIVE_UPDATES_PURCHASE_CANCELLED_TIME;
 			if (!subscribedToLiveUpdates && ctx.getSettings().LIVE_UPDATES_PURCHASED.get()) {
 				if (subscriptionCancelledTime.get() == 0) {
 					subscriptionCancelledTime.set(System.currentTimeMillis());

OsmAnd/src-huawei/net/osmand/plus/inapp/InAppPurchaseHelperImpl.java

@@ -31,7 +31,7 @@ import net.osmand.plus.inapp.InAppPurchases.InAppSubscription;
 import net.osmand.plus.inapp.InAppPurchases.InAppSubscriptionIntroductoryInfo;
 import net.osmand.plus.inapp.InAppPurchasesImpl.InAppPurchaseLiveUpdatesOldSubscription;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
+import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.util.Algorithms;
 
 import java.lang.ref.WeakReference;

OsmAnd/src/net/osmand/FileUtils.java

@@ -223,6 +223,19 @@ public class FileUtils {
 		return tempDir;
 	}
 
+	public static boolean isWritable(File dirToTest) {
+		boolean isWriteable;
+		try {
+			dirToTest.mkdirs();
+			File writeTestFile = File.createTempFile("osmand_", ".tmp", dirToTest);
+			isWriteable = writeTestFile.exists();
+			writeTestFile.delete();
+		} catch (IOException e) {
+			isWriteable = false;
+		}
+		return isWriteable;
+	}
+
 	public interface RenameCallback {
 		void renamedTo(File file);
 	}

OsmAnd/src/net/osmand/aidl/ConnectedApp.java

@@ -22,7 +22,6 @@ import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
 import net.osmand.plus.views.OsmandMapLayer;
 import net.osmand.plus.views.layers.AidlMapLayer;
 import net.osmand.plus.views.layers.MapInfoLayer;

OsmAnd/src/net/osmand/plus/AppInitializer.java

@@ -28,7 +28,7 @@ import net.osmand.map.OsmandRegions.RegionTranslation;
 import net.osmand.map.WorldRegion;
 import net.osmand.osm.AbstractPoiType;
 import net.osmand.osm.MapPoiTypes;
-import net.osmand.plus.activities.DayNightHelper;
+import net.osmand.plus.helpers.DayNightHelper;
 import net.osmand.plus.activities.LocalIndexHelper;
 import net.osmand.plus.activities.LocalIndexInfo;
 import net.osmand.plus.activities.SavingTrackHelper;

OsmAnd/src/net/osmand/plus/AppVersionUpgradeOnInit.java

@@ -10,6 +10,7 @@ import com.google.gson.reflect.TypeToken;
 import net.osmand.data.FavouritePoint;
 import net.osmand.data.LatLon;
 import net.osmand.plus.api.SettingsAPI;
+import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.settings.backend.EnumStringPreference;
 import net.osmand.plus.settings.backend.OsmandPreference;
@@ -18,6 +19,7 @@ import net.osmand.util.Algorithms;
 
 import java.lang.reflect.Type;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -133,7 +135,7 @@ class AppVersionUpgradeOnInit {
 					startPrefs.edit().putInt(VERSION_INSTALLED_NUMBER, VERSION_3_7_01).commit();
 				}
 				if (prevAppVersion < VERSION_3_8_00) {
-					app.getSettings().migrateQuickActionStates();
+					migrateQuickActionStates();
 					startPrefs.edit().putInt(VERSION_INSTALLED_NUMBER, VERSION_3_8_00).commit();
 				}
 				startPrefs.edit().putInt(VERSION_INSTALLED_NUMBER, lastVersion).commit();
@@ -253,6 +255,21 @@ class AppVersionUpgradeOnInit {
 		}
 	}
 
+	public void migrateQuickActionStates() {
+		String quickActionsJson = settings.getSettingsAPI().getString(settings.getGlobalPreferences(), "quick_action_new", "");
+		if (!Algorithms.isEmpty(quickActionsJson)) {
+			Gson gson = new GsonBuilder().create();
+			Type type = new TypeToken<HashMap<String, Boolean>>() {
+			}.getType();
+			HashMap<String, Boolean> quickActions = gson.fromJson(quickActionsJson, type);
+			if (!Algorithms.isEmpty(quickActions)) {
+				for (ApplicationMode mode : ApplicationMode.allPossibleValues()) {
+					settings.setQuickActions(quickActions, mode);
+				}
+			}
+		}
+	}
+
 	private void migrateEnumPref(EnumStringPreference enumPref, SharedPreferences sharedPreferences) {
 		Object value = sharedPreferences.getAll().get(enumPref.getId());
 		if (value instanceof Integer) {

OsmAnd/src/net/osmand/plus/ContextMenuAdapter.java

@@ -38,9 +38,6 @@ import net.osmand.plus.dialogs.HelpArticleDialogFragment;
 import net.osmand.plus.helpers.AndroidUiHelper;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.OsmAndAppCustomization;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.ContextMenuItemsPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
 import net.osmand.plus.settings.backend.ContextMenuItemsPreference;
 import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.util.Algorithms;

OsmAnd/src/net/osmand/plus/GpxSelectionHelper.java

@@ -29,7 +29,7 @@ import net.osmand.plus.helpers.GpxUiHelper;
 import net.osmand.plus.helpers.GpxUiHelper.GPXDataSetAxisType;
 import net.osmand.plus.helpers.GpxUiHelper.GPXDataSetType;
 import net.osmand.plus.routing.RouteProvider;
-import net.osmand.plus.settings.backend.OsmandSettings.MetricsConstants;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.track.GpxSplitType;
 import net.osmand.plus.track.GradientScaleType;
 import net.osmand.util.Algorithms;

OsmAnd/src/net/osmand/plus/OsmAndFormatter.java

@@ -15,9 +15,9 @@ import net.osmand.osm.PoiCategory;
 import net.osmand.osm.PoiType;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.AngularConstants;
+import net.osmand.plus.helpers.enums.AngularConstants;
-import net.osmand.plus.settings.backend.OsmandSettings.MetricsConstants;
+import net.osmand.plus.helpers.enums.MetricsConstants;
-import net.osmand.plus.settings.backend.OsmandSettings.SpeedConstants;
+import net.osmand.plus.helpers.enums.SpeedConstants;
 import net.osmand.util.Algorithms;
 
 import java.text.DateFormatSymbols;

OsmAnd/src/net/osmand/plus/OsmandApplication.java

@@ -30,6 +30,7 @@ import androidx.multidex.MultiDex;
 import androidx.multidex.MultiDexApplication;
 
 import net.osmand.AndroidUtils;
+import net.osmand.FileUtils;
 import net.osmand.IndexConstants;
 import net.osmand.PlatformUtil;
 import net.osmand.access.AccessibilityPlugin;
@@ -42,7 +43,7 @@ import net.osmand.osm.MapPoiTypes;
 import net.osmand.osm.io.NetworkUtils;
 import net.osmand.plus.AppInitializer.AppInitializeListener;
 import net.osmand.plus.access.AccessibilityMode;
-import net.osmand.plus.activities.DayNightHelper;
+import net.osmand.plus.helpers.DayNightHelper;
 import net.osmand.plus.activities.ExitActivity;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.activities.SavingTrackHelper;
@@ -56,7 +57,9 @@ import net.osmand.plus.download.DownloadIndexesThread;
 import net.osmand.plus.download.DownloadService;
 import net.osmand.plus.download.IndexItem;
 import net.osmand.plus.helpers.AvoidSpecificRoads;
+import net.osmand.plus.helpers.enums.DrivingRegion;
 import net.osmand.plus.helpers.LockHelper;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.helpers.WaypointHelper;
 import net.osmand.plus.inapp.InAppPurchaseHelper;
 import net.osmand.plus.mapmarkers.MapMarkersDbHelper;
@@ -189,7 +192,7 @@ public class OsmandApplication extends MultiDexApplication {
 			osmandSettings.initExternalStorageDirectory();
 		}
 		externalStorageDirectory = osmandSettings.getExternalStorageDirectory();
-		if (!OsmandSettings.isWritable(externalStorageDirectory)) {
+		if (!FileUtils.isWritable(externalStorageDirectory)) {
 			externalStorageDirectoryReadOnly = true;
 			externalStorageDirectory = osmandSettings.getInternalAppPath();
 		}
@@ -983,15 +986,15 @@ public class OsmandApplication extends MultiDexApplication {
 	}
 
 	public void setupDrivingRegion(WorldRegion reg) {
-		OsmandSettings.DrivingRegion drg = null;
+		DrivingRegion drg = null;
 		WorldRegion.RegionParams params = reg.getParams();
 //		boolean americanSigns = "american".equals(params.getRegionRoadSigns());
 		boolean leftHand = "yes".equals(params.getRegionLeftHandDriving());
-		OsmandSettings.MetricsConstants mc1 = "miles".equals(params.getRegionMetric()) ?
+		MetricsConstants mc1 = "miles".equals(params.getRegionMetric()) ?
-				OsmandSettings.MetricsConstants.MILES_AND_FEET : OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS;
+				MetricsConstants.MILES_AND_FEET : MetricsConstants.KILOMETERS_AND_METERS;
-		OsmandSettings.MetricsConstants mc2 = "miles".equals(params.getRegionMetric()) ?
+		MetricsConstants mc2 = "miles".equals(params.getRegionMetric()) ?
-				OsmandSettings.MetricsConstants.MILES_AND_METERS : OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS;
+				MetricsConstants.MILES_AND_METERS : MetricsConstants.KILOMETERS_AND_METERS;
-		for (OsmandSettings.DrivingRegion r : OsmandSettings.DrivingRegion.values()) {
+		for (DrivingRegion r : DrivingRegion.values()) {
 			if (r.leftHandDriving == leftHand && (r.defMetrics == mc1 || r.defMetrics == mc2)) {
 				drg = r;
 				break;

OsmAnd/src/net/osmand/plus/activities/MapActivity.java

@@ -74,6 +74,7 @@ import net.osmand.plus.OsmAndConstants;
 import net.osmand.plus.OsmAndLocationSimulation;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
+import net.osmand.plus.helpers.DayNightHelper;
 import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.R;
@@ -132,7 +133,6 @@ import net.osmand.plus.search.QuickSearchDialogFragment.QuickSearchTab;
 import net.osmand.plus.search.QuickSearchDialogFragment.QuickSearchType;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.OsmAndAppCustomization.OsmAndAppCustomizationListener;
-import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.settings.fragments.BaseSettingsFragment;
 import net.osmand.plus.settings.fragments.BaseSettingsFragment.SettingsScreenType;
 import net.osmand.plus.settings.fragments.ConfigureProfileFragment;

OsmAnd/src/net/osmand/plus/activities/SettingsBaseActivity.java

@@ -32,9 +32,6 @@ import net.osmand.plus.R;
 import net.osmand.plus.profiles.AppProfileArrayAdapter;
 import net.osmand.plus.profiles.ProfileDataObject;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
 
 import org.apache.commons.logging.Log;
 

OsmAnd/src/net/osmand/plus/activities/SettingsGeneralActivity.java

@@ -42,9 +42,9 @@ import net.osmand.osm.io.NetworkUtils;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.AngularConstants;
+import net.osmand.plus.helpers.enums.AngularConstants;
-import net.osmand.plus.settings.backend.OsmandSettings.DrivingRegion;
+import net.osmand.plus.helpers.enums.DrivingRegion;
-import net.osmand.plus.settings.backend.OsmandSettings.MetricsConstants;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.R;
 import net.osmand.plus.Version;
 import net.osmand.plus.base.MapViewTrackingUtilities;

OsmAnd/src/net/osmand/plus/activities/SettingsNavigationActivity.java

@@ -34,11 +34,12 @@ import net.osmand.plus.ContextMenuAdapter;
 import net.osmand.plus.ContextMenuItem;
 import net.osmand.plus.OsmAndFormatter;
 import net.osmand.plus.OsmandApplication;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.AutoZoomMap;
+import net.osmand.plus.helpers.enums.AutoZoomMap;
 import net.osmand.plus.settings.backend.OsmandPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.SpeedConstants;
+import net.osmand.plus.helpers.enums.SpeedConstants;
 import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.Version;
@@ -49,10 +50,6 @@ import net.osmand.plus.routepreparationmenu.RoutingOptionsHelper;
 import net.osmand.plus.routing.RouteProvider.RouteService;
 import net.osmand.plus.routing.RoutingHelper;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.AutoZoomMap;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.SpeedConstants;
 import net.osmand.plus.voice.CommandPlayer;
 import net.osmand.router.GeneralRouter;
 import net.osmand.router.GeneralRouter.GeneralRouterProfile;
@@ -176,7 +173,7 @@ public class SettingsNavigationActivity extends SettingsBaseActivity {
 		//array size must be equal!
 		Float[] speedLimitsKmhPos = new Float[]{0f, 5f, 7f, 10f, 15f, 20f};
 		Float[] speedLimitsMphPos = new Float[]{0f, 3f, 5f, 7f, 10f, 15f};
-		if (settings.METRIC_SYSTEM.get() == OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS) {
+		if (settings.METRIC_SYSTEM.get() == MetricsConstants.KILOMETERS_AND_METERS) {
 			String[] speedNames = new String[speedLimitsKmh.length];
 			String[] speedNamesPos = new String[speedLimitsKmhPos.length];
 			for (int i = 0; i < speedLimitsKmh.length; i++) {

OsmAnd/src/net/osmand/plus/audionotes/NotesFragment.java

@@ -38,7 +38,6 @@ import net.osmand.PlatformUtil;
 import net.osmand.data.PointDescription;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
-import net.osmand.plus.settings.backend.OsmandSettings.NotesSortByMode;
 import net.osmand.plus.R;
 import net.osmand.plus.Version;
 import net.osmand.plus.activities.ActionBarProgressActivity;

OsmAnd/src/net/osmand/plus/audionotes/NotesSortByMode.java

@@ -0,0 +1,14 @@
+package net.osmand.plus.audionotes;
+
+public enum NotesSortByMode {
+	BY_TYPE,
+	BY_DATE;
+
+	public boolean isByType() {
+		return this == BY_TYPE;
+	}
+
+	public boolean isByDate() {
+		return this == BY_DATE;
+	}
+}

OsmAnd/src/net/osmand/plus/audionotes/SortByMenuBottomSheetDialogFragment.java

@@ -4,7 +4,6 @@ import android.os.Bundle;
 import android.view.View;
 
 import net.osmand.plus.settings.backend.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.NotesSortByMode;
 import net.osmand.plus.R;
 import net.osmand.plus.base.MenuBottomSheetDialogFragment;
 import net.osmand.plus.base.bottomsheetmenu.BaseBottomSheetItem;

OsmAnd/src/net/osmand/plus/dashboard/DashChooseAppDirFragment.java

@@ -30,6 +30,7 @@ import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 
 import net.osmand.AndroidUtils;
+import net.osmand.FileUtils;
 import net.osmand.ValueHolder;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.settings.backend.OsmandSettings;
@@ -113,7 +114,7 @@ public class DashChooseAppDirFragment {
 			boolean copyFiles = !currentAppFile.getAbsolutePath().equals(selectedFile.getAbsolutePath()) && !mapsCopied;
 			warningReadonly.setVisibility(copyFiles ? View.VISIBLE : View.GONE);
 			if (copyFiles) {
-				if (!OsmandSettings.isWritable(currentAppFile)) {
+				if (!FileUtils.isWritable(currentAppFile)) {
 					warningReadonly.setText(activity.getString(R.string.android_19_location_disabled,
 							currentAppFile.getAbsolutePath()));
 				} else {
@@ -385,7 +386,7 @@ public class DashChooseAppDirFragment {
 
 				@Override
 				public void onClick(View v) {
-					boolean wr = OsmandSettings.isWritable(selectedFile);
+					boolean wr = FileUtils.isWritable(selectedFile);
 					if (wr) {
 						boolean changed = !currentAppFile.getAbsolutePath().equals(selectedFile.getAbsolutePath());
 						getMyApplication().setExternalStorageDirectory(type, selectedFile.getAbsolutePath());

OsmAnd/src/net/osmand/plus/development/TestVoiceActivity.java

@@ -151,7 +151,7 @@ public class TestVoiceActivity extends OsmandActionBarActivity {
 			v += "\n \u25CF BT SCO: The current app profile is not set to use 'Phone call audio'.";
 		}
 
-		//OsmandSettings.OsmandPreference<Integer> pref = ((OsmandApplication) getApplication()).getSettings().VOICE_PROMPT_DELAY[stream];
+		//OsmandPreference<Integer> pref = ((OsmandApplication) getApplication()).getSettings().VOICE_PROMPT_DELAY[stream];
 		//if(pref != null) {
 		//	v += "\n \u25CF Voice prompt delay for selected output: " + pref.get() + "\u00A0ms";
 		//}

OsmAnd/src/net/osmand/plus/dialogs/ConfigureMapMenu.java

@@ -33,6 +33,7 @@ import net.osmand.plus.ContextMenuItem;
 import net.osmand.plus.DialogListItemAdapter;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
+import net.osmand.plus.helpers.enums.DayNightMode;
 import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.settings.backend.CommonPreference;
@@ -44,9 +45,6 @@ import net.osmand.plus.activities.SettingsActivity;
 import net.osmand.plus.inapp.InAppPurchaseHelper;
 import net.osmand.plus.poi.PoiUIFilter;
 import net.osmand.plus.render.RendererRegistry;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.ListStringPreference;
 import net.osmand.plus.srtmplugin.SRTMPlugin;
 import net.osmand.plus.transport.TransportLinesMenu;
 import net.osmand.plus.views.OsmandMapTileView;
@@ -311,7 +309,7 @@ public class ConfigureMapMenu {
 			DateFormat dateFormat = DateFormat.getTimeInstance(DateFormat.SHORT);
 			String sunriseTime = dateFormat.format(sunriseSunset.getSunrise());
 			String sunsetTime = dateFormat.format(sunriseSunset.getSunset());
-			OsmandSettings.DayNightMode dayNightMode = activity.getMyApplication().getSettings().DAYNIGHT_MODE.get();
+			DayNightMode dayNightMode = activity.getMyApplication().getSettings().DAYNIGHT_MODE.get();
 			if (dayNightMode.isDay() || dayNightMode.isNight()) {
 				if (sunriseSunset.isDaytime()) {
 					description = String.format(app.getString(R.string.sunset_at), sunsetTime);
@@ -338,9 +336,9 @@ public class ConfigureMapMenu {
 						final OsmandMapTileView view = activity.getMapView();
 						AlertDialog.Builder bld = new AlertDialog.Builder(new ContextThemeWrapper(view.getContext(), themeRes));
 						bld.setTitle(R.string.daynight);
-						final String[] items = new String[OsmandSettings.DayNightMode.values().length];
+						final String[] items = new String[DayNightMode.values().length];
 						for (int i = 0; i < items.length; i++) {
-							items[i] = OsmandSettings.DayNightMode.values()[i].toHumanString(app);
+							items[i] = DayNightMode.values()[i].toHumanString(app);
 						}
 						int i = view.getSettings().DAYNIGHT_MODE.get().ordinal();
 						bld.setNegativeButton(R.string.shared_string_dismiss, null);
@@ -349,7 +347,7 @@ public class ConfigureMapMenu {
 									@Override
 									public void onClick(View v) {
 										int which = (int) v.getTag();
-										view.getSettings().DAYNIGHT_MODE.set(OsmandSettings.DayNightMode.values()[which]);
+										view.getSettings().DAYNIGHT_MODE.set(DayNightMode.values()[which]);
 										refreshMapComplete(activity);
 										activity.getDashboard().refreshContent(true);
 										// adapter.getItem(pos).setDescription(s, getDayNightDescr(activity));

OsmAnd/src/net/osmand/plus/dialogs/DetailsBottomSheet.java

@@ -27,7 +27,7 @@ import net.osmand.plus.base.bottomsheetmenu.BottomSheetItemTwoChoicesButton.OnBo
 import net.osmand.plus.base.bottomsheetmenu.BottomSheetItemWithCompoundButton;
 import net.osmand.plus.base.bottomsheetmenu.simpleitems.DividerItem;
 import net.osmand.plus.helpers.FontCache;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
+import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.settings.bottomsheets.BasePreferenceBottomSheet;
 import net.osmand.render.RenderingRuleProperty;
 import net.osmand.render.RenderingRuleStorageProperties;

OsmAnd/src/net/osmand/plus/dialogs/RasterMapMenu.java

@@ -12,7 +12,7 @@ import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.LayerTransparencySeekbarMode;
+import net.osmand.plus.rastermaps.LayerTransparencySeekbarMode;
 import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.activities.MapActivityLayers;
@@ -182,8 +182,8 @@ public class RasterMapMenu {
 
 	@NonNull
 	public static Boolean isSeekbarVisible(OsmandApplication app, RasterMapType type) {
-		final OsmandSettings.LayerTransparencySeekbarMode currentMapTypeSeekbarMode =
+		final LayerTransparencySeekbarMode currentMapTypeSeekbarMode =
-				type == RasterMapType.OVERLAY ? OsmandSettings.LayerTransparencySeekbarMode.OVERLAY : OsmandSettings.LayerTransparencySeekbarMode.UNDERLAY;
+				type == RasterMapType.OVERLAY ? LayerTransparencySeekbarMode.OVERLAY : LayerTransparencySeekbarMode.UNDERLAY;
 		LayerTransparencySeekbarMode seekbarMode = app.getSettings().LAYER_TRANSPARENCY_SEEKBAR_MODE.get();
 		return seekbarMode == LayerTransparencySeekbarMode.UNDEFINED || seekbarMode == currentMapTypeSeekbarMode;
 	}

OsmAnd/src/net/osmand/plus/download/ui/DataStoragePlaceDialogFragment.java

@@ -21,6 +21,7 @@ import androidx.annotation.NonNull;
 import androidx.fragment.app.FragmentManager;
 
 import net.osmand.AndroidUtils;
+import net.osmand.FileUtils;
 import net.osmand.IProgress;
 import net.osmand.plus.OnDismissDialogFragmentListener;
 import net.osmand.plus.OsmandApplication;
@@ -71,7 +72,7 @@ public class DataStoragePlaceDialogFragment extends BottomSheetDialogFragment {
 
 		File internalStorage = getInternalStorageDirectory(activity);
 		File external1Storage = getExternal1StorageDirectory(activity);
-		if (external1Storage != null && external1Storage.exists() && OsmandSettings.isWritable(external1Storage)) {
+		if (external1Storage != null && external1Storage.exists() && FileUtils.isWritable(external1Storage)) {
 			deviceStorage = external1Storage;
 			deviceStorageType = OsmandSettings.EXTERNAL_STORAGE_TYPE_EXTERNAL_FILE;
 			deviceStorageName = getString(R.string.storage_directory_external);
@@ -246,7 +247,7 @@ public class DataStoragePlaceDialogFragment extends BottomSheetDialogFragment {
 			};
 
 	public boolean saveFilesLocation(int type, File selectedFile, Activity context) {
-		boolean wr = OsmandSettings.isWritable(selectedFile);
+		boolean wr = FileUtils.isWritable(selectedFile);
 		if (wr) {
 			((OsmandApplication) context.getApplication())
 					.setExternalStorageDirectory(type, selectedFile.getAbsolutePath());

OsmAnd/src/net/osmand/plus/helpers/DayNightHelper.java

@@ -1,4 +1,4 @@
-package net.osmand.plus.activities;
+package net.osmand.plus.helpers;
 
 
 import java.util.Date;
@@ -8,9 +8,9 @@ import java.util.TimeZone;
 import net.osmand.Location;
 import net.osmand.PlatformUtil;
 import net.osmand.StateChangedListener;
+import net.osmand.plus.helpers.enums.DayNightMode;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.OsmandApplication;
-import net.osmand.plus.settings.backend.OsmandSettings.DayNightMode;
 import net.osmand.util.SunriseSunset;
 
 import org.apache.commons.logging.Log;

OsmAnd/src/net/osmand/plus/helpers/GpxUiHelper.java

@@ -80,6 +80,8 @@ import net.osmand.plus.OsmAndConstants;
 import net.osmand.plus.OsmAndFormatter;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
+import net.osmand.plus.helpers.enums.MetricsConstants;
+import net.osmand.plus.helpers.enums.SpeedConstants;
 import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.R;
@@ -95,7 +97,6 @@ import net.osmand.plus.dialogs.GpxAppearanceAdapter;
 import net.osmand.plus.dialogs.GpxAppearanceAdapter.AppearanceListItem;
 import net.osmand.plus.monitoring.OsmandMonitoringPlugin;
 import net.osmand.plus.routing.RouteCalculationResult;
-import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.render.RenderingRuleProperty;
 import net.osmand.render.RenderingRulesStorage;
 import net.osmand.router.RouteStatisticsHelper;
@@ -1041,7 +1042,7 @@ public class GpxUiHelper {
 
 	private static float setupAxisDistance(OsmandApplication ctx, AxisBase axisBase, float meters) {
 		OsmandSettings settings = ctx.getSettings();
-		OsmandSettings.MetricsConstants mc = settings.METRIC_SYSTEM.get();
+		MetricsConstants mc = settings.METRIC_SYSTEM.get();
 		float divX;
 
 		String format1 = "{0,number,0.#} ";
@@ -1050,10 +1051,10 @@ public class GpxUiHelper {
 		float granularity = 1f;
 		int mainUnitStr;
 		float mainUnitInMeters;
-		if (mc == OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS) {
+		if (mc == MetricsConstants.KILOMETERS_AND_METERS) {
 			mainUnitStr = R.string.km;
 			mainUnitInMeters = METERS_IN_KILOMETER;
-		} else if (mc == OsmandSettings.MetricsConstants.NAUTICAL_MILES) {
+		} else if (mc == MetricsConstants.NAUTICAL_MILES) {
 			mainUnitStr = R.string.nm;
 			mainUnitInMeters = METERS_IN_ONE_NAUTICALMILE;
 		} else {
@@ -1067,10 +1068,10 @@ public class GpxUiHelper {
 		if (meters >= 100 * mainUnitInMeters ||
 				meters > 9.99f * mainUnitInMeters ||
 				meters > 0.999f * mainUnitInMeters ||
-				mc == OsmandSettings.MetricsConstants.MILES_AND_FEET && meters > 0.249f * mainUnitInMeters ||
+				mc == MetricsConstants.MILES_AND_FEET && meters > 0.249f * mainUnitInMeters ||
-				mc == OsmandSettings.MetricsConstants.MILES_AND_METERS && meters > 0.249f * mainUnitInMeters ||
+				mc == MetricsConstants.MILES_AND_METERS && meters > 0.249f * mainUnitInMeters ||
-				mc == OsmandSettings.MetricsConstants.MILES_AND_YARDS && meters > 0.249f * mainUnitInMeters ||
+				mc == MetricsConstants.MILES_AND_YARDS && meters > 0.249f * mainUnitInMeters ||
-				mc == OsmandSettings.MetricsConstants.NAUTICAL_MILES && meters > 0.99f * mainUnitInMeters) {
+				mc == MetricsConstants.NAUTICAL_MILES && meters > 0.99f * mainUnitInMeters) {
 
 			divX = mainUnitInMeters;
 			if (fmt == null) {
@@ -1080,13 +1081,13 @@ public class GpxUiHelper {
 		} else {
 			fmt = null;
 			granularity = 1f;
-			if (mc == OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS || mc == OsmandSettings.MetricsConstants.MILES_AND_METERS) {
+			if (mc == MetricsConstants.KILOMETERS_AND_METERS || mc == MetricsConstants.MILES_AND_METERS) {
 				divX = 1f;
 				mainUnitStr = R.string.m;
-			} else if (mc == OsmandSettings.MetricsConstants.MILES_AND_FEET) {
+			} else if (mc == MetricsConstants.MILES_AND_FEET) {
 				divX = 1f / FEET_IN_ONE_METER;
 				mainUnitStr = R.string.foot;
-			} else if (mc == OsmandSettings.MetricsConstants.MILES_AND_YARDS) {
+			} else if (mc == MetricsConstants.MILES_AND_YARDS) {
 				divX = 1f / YARDS_IN_ONE_METER;
 				mainUnitStr = R.string.yard;
 			} else {
@@ -1308,8 +1309,8 @@ public class GpxUiHelper {
 															   boolean drawFilled,
 															   boolean calcWithoutGaps) {
 		OsmandSettings settings = ctx.getSettings();
-		OsmandSettings.MetricsConstants mc = settings.METRIC_SYSTEM.get();
+		MetricsConstants mc = settings.METRIC_SYSTEM.get();
-		boolean useFeet = (mc == OsmandSettings.MetricsConstants.MILES_AND_FEET) || (mc == OsmandSettings.MetricsConstants.MILES_AND_YARDS);
+		boolean useFeet = (mc == MetricsConstants.MILES_AND_FEET) || (mc == MetricsConstants.MILES_AND_YARDS);
 		boolean light = settings.isLightContent();
 		final float convEle = useFeet ? 3.28084f : 1.0f;
 
@@ -1410,19 +1411,19 @@ public class GpxUiHelper {
 			divX = setupAxisDistance(ctx, xAxis, calcWithoutGaps ? analysis.totalDistanceWithoutGaps : analysis.totalDistance);
 		}
 
-		OsmandSettings.SpeedConstants sps = settings.SPEED_SYSTEM.get();
+		SpeedConstants sps = settings.SPEED_SYSTEM.get();
 		float mulSpeed = Float.NaN;
 		float divSpeed = Float.NaN;
 		final String mainUnitY = sps.toShortString(ctx);
-		if (sps == OsmandSettings.SpeedConstants.KILOMETERS_PER_HOUR) {
+		if (sps == SpeedConstants.KILOMETERS_PER_HOUR) {
 			mulSpeed = 3.6f;
-		} else if (sps == OsmandSettings.SpeedConstants.MILES_PER_HOUR) {
+		} else if (sps == SpeedConstants.MILES_PER_HOUR) {
 			mulSpeed = 3.6f * METERS_IN_KILOMETER / METERS_IN_ONE_MILE;
-		} else if (sps == OsmandSettings.SpeedConstants.NAUTICALMILES_PER_HOUR) {
+		} else if (sps == SpeedConstants.NAUTICALMILES_PER_HOUR) {
 			mulSpeed = 3.6f * METERS_IN_KILOMETER / METERS_IN_ONE_NAUTICALMILE;
-		} else if (sps == OsmandSettings.SpeedConstants.MINUTES_PER_KILOMETER) {
+		} else if (sps == SpeedConstants.MINUTES_PER_KILOMETER) {
 			divSpeed = METERS_IN_KILOMETER / 60;
-		} else if (sps == OsmandSettings.SpeedConstants.MINUTES_PER_MILE) {
+		} else if (sps == SpeedConstants.MINUTES_PER_MILE) {
 			divSpeed = METERS_IN_ONE_MILE / 60;
 		} else {
 			mulSpeed = 1f;
@@ -1573,8 +1574,8 @@ public class GpxUiHelper {
 		}
 		OsmandSettings settings = ctx.getSettings();
 		boolean light = settings.isLightContent();
-		OsmandSettings.MetricsConstants mc = settings.METRIC_SYSTEM.get();
+		MetricsConstants mc = settings.METRIC_SYSTEM.get();
-		boolean useFeet = (mc == OsmandSettings.MetricsConstants.MILES_AND_FEET) || (mc == OsmandSettings.MetricsConstants.MILES_AND_YARDS);
+		boolean useFeet = (mc == MetricsConstants.MILES_AND_FEET) || (mc == MetricsConstants.MILES_AND_YARDS);
 		final float convEle = useFeet ? 3.28084f : 1.0f;
 		final float totalDistance = calcWithoutGaps ? analysis.totalDistanceWithoutGaps : analysis.totalDistance;
 

OsmAnd/src/net/osmand/plus/helpers/WaypointHelper.java

@@ -24,6 +24,9 @@ import net.osmand.plus.TargetPointsHelper.TargetPoint;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.activities.IntermediatePointsDialog;
 import net.osmand.plus.base.PointImageDrawable;
+import net.osmand.plus.helpers.enums.DrivingRegion;
+import net.osmand.plus.helpers.enums.MetricsConstants;
+import net.osmand.plus.helpers.enums.SpeedConstants;
 import net.osmand.plus.poi.PoiUIFilter;
 import net.osmand.plus.render.RenderingIcons;
 import net.osmand.plus.routing.AlarmInfo;
@@ -31,8 +34,6 @@ import net.osmand.plus.routing.AlarmInfo.AlarmInfoType;
 import net.osmand.plus.routing.RouteCalculationResult;
 import net.osmand.plus.routing.VoiceRouter;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.MetricsConstants;
 import net.osmand.util.MapUtils;
 
 import java.util.ArrayList;
@@ -193,7 +194,7 @@ public class WaypointHelper {
 		return found;
 	}
 
-	public AlarmInfo getMostImportantAlarm(OsmandSettings.SpeedConstants sc, boolean showCameras) {
+	public AlarmInfo getMostImportantAlarm(SpeedConstants sc, boolean showCameras) {
 		Location lastProjection = app.getRoutingHelper().getLastProjection();
 		float mxspeed = route.getCurrentMaxSpeed();
 		float delta = app.getSettings().SPEED_LIMIT_EXCEED_KMH.get() / 3.6f;
@@ -291,7 +292,7 @@ public class WaypointHelper {
 	}
 
 	public AlarmInfo calculateMostImportantAlarm(RouteDataObject ro, Location loc, MetricsConstants mc,
-												 OsmandSettings.SpeedConstants sc, boolean showCameras) {
+	                                             SpeedConstants sc, boolean showCameras) {
 		float mxspeed = ro.getMaximumSpeed(ro.bearingVsRouteDirection(loc));
 		float delta = app.getSettings().SPEED_LIMIT_EXCEED_KMH.get() / 3.6f;
 		AlarmInfo speedAlarm = createSpeedAlarm(sc, mxspeed, loc, delta);
@@ -331,7 +332,7 @@ public class WaypointHelper {
 		return null;
 	}
 
-	private static AlarmInfo createSpeedAlarm(OsmandSettings.SpeedConstants sc, float mxspeed, Location loc, float delta) {
+	private static AlarmInfo createSpeedAlarm(SpeedConstants sc, float mxspeed, Location loc, float delta) {
 		AlarmInfo speedAlarm = null;
 		if (mxspeed != 0 && loc != null && loc.hasSpeed() && mxspeed != RouteDataObject.NONE_MAX_SPEED) {
 			if (loc.getSpeed() > mxspeed + delta) {
@@ -790,7 +791,7 @@ public class WaypointHelper {
 			} else if (type == ALARMS) {
 				//assign alarm list icons manually for now
 				String typeString = ((AlarmInfo) point).getType().toString();
-				OsmandSettings.DrivingRegion region = app.getSettings().DRIVING_REGION.get();
+				DrivingRegion region = app.getSettings().DRIVING_REGION.get();
 				if (typeString.equals("SPEED_CAMERA")) {
 					return AppCompatResources.getDrawable(uiCtx, R.drawable.mx_highway_speed_camera);
 				} else if (typeString.equals("BORDER_CONTROL")) {

OsmAnd/src/net/osmand/plus/helpers/enums/AngularConstants.java

@@ -0,0 +1,28 @@
+package net.osmand.plus.helpers.enums;
+
+import android.content.Context;
+
+import net.osmand.plus.R;
+
+public enum AngularConstants {
+	DEGREES(R.string.shared_string_degrees, "°"),
+	DEGREES360(R.string.shared_string_degrees, "°"),
+	MILLIRADS(R.string.shared_string_milliradians, "mil");
+
+	private final int key;
+	private final String unit;
+
+	AngularConstants(int key, String unit) {
+		this.key = key;
+		this.unit = unit;
+	}
+
+	public String toHumanString(Context ctx) {
+		return ctx.getString(key);
+	}
+
+	public String getUnitSymbol() {
+		return unit;
+	}
+
+}

OsmAnd/src/net/osmand/plus/helpers/enums/AutoZoomMap.java

@@ -0,0 +1,19 @@
+package net.osmand.plus.helpers.enums;
+
+import net.osmand.plus.R;
+
+public enum AutoZoomMap {
+	FARTHEST(R.string.auto_zoom_farthest, 1f, 15.5f),
+	FAR(R.string.auto_zoom_far, 1.4f, 17f),
+	CLOSE(R.string.auto_zoom_close, 2f, 19f);
+	public final float coefficient;
+	public final int name;
+	public final float maxZoom;
+
+	AutoZoomMap(int name, float coefficient, float maxZoom) {
+		this.name = name;
+		this.coefficient = coefficient;
+		this.maxZoom = maxZoom;
+
+	}
+}

OsmAnd/src/net/osmand/plus/helpers/enums/DayNightMode.java

@@ -0,0 +1,62 @@
+package net.osmand.plus.helpers.enums;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorManager;
+
+import androidx.annotation.DrawableRes;
+import androidx.annotation.StringRes;
+
+import net.osmand.plus.R;
+
+public enum DayNightMode {
+	AUTO(R.string.daynight_mode_auto, R.drawable.ic_action_map_sunset),
+	DAY(R.string.daynight_mode_day, R.drawable.ic_action_map_day),
+	NIGHT(R.string.daynight_mode_night, R.drawable.ic_action_map_night),
+	SENSOR(R.string.daynight_mode_sensor, R.drawable.ic_action_map_light_sensor);
+
+	private final int key;
+	@DrawableRes
+	private final int drawableRes;
+
+	DayNightMode(@StringRes int key, @DrawableRes int drawableRes) {
+		this.key = key;
+		this.drawableRes = drawableRes;
+	}
+
+	public String toHumanString(Context ctx) {
+		return ctx.getString(key);
+	}
+
+	@DrawableRes
+	public int getIconRes() {
+		return drawableRes;
+	}
+
+	public boolean isSensor() {
+		return this == SENSOR;
+	}
+
+	public boolean isAuto() {
+		return this == AUTO;
+	}
+
+	public boolean isDay() {
+		return this == DAY;
+	}
+
+	public boolean isNight() {
+		return this == NIGHT;
+	}
+
+	public static DayNightMode[] possibleValues(Context context) {
+		SensorManager mSensorManager = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
+		Sensor mLight = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
+		boolean isLightSensorEnabled = mLight != null;
+		if (isLightSensorEnabled) {
+			return DayNightMode.values();
+		} else {
+			return new DayNightMode[]{AUTO, DAY, NIGHT};
+		}
+	}
+}

OsmAnd/src/net/osmand/plus/helpers/enums/DrivingRegion.java

@@ -0,0 +1,62 @@
+package net.osmand.plus.helpers.enums;
+
+import android.content.Context;
+
+import net.osmand.plus.R;
+
+import java.util.Locale;
+
+/**
+ * Class represents specific for driving region
+ * Signs, leftHandDriving
+ */
+public enum DrivingRegion {
+
+	EUROPE_ASIA(R.string.driving_region_europe_asia, MetricsConstants.KILOMETERS_AND_METERS, false),
+	US(R.string.driving_region_us, MetricsConstants.MILES_AND_FEET, false),
+	CANADA(R.string.driving_region_canada, MetricsConstants.KILOMETERS_AND_METERS, false),
+	UK_AND_OTHERS(R.string.driving_region_uk, MetricsConstants.MILES_AND_METERS, true),
+	JAPAN(R.string.driving_region_japan, MetricsConstants.KILOMETERS_AND_METERS, true),
+	AUSTRALIA(R.string.driving_region_australia, MetricsConstants.KILOMETERS_AND_METERS, true);
+
+	public final boolean leftHandDriving;
+	public final MetricsConstants defMetrics;
+	public final int name;
+
+	DrivingRegion(int name, MetricsConstants def, boolean leftHandDriving) {
+		this.name = name;
+		defMetrics = def;
+		this.leftHandDriving = leftHandDriving;
+	}
+
+	public boolean isAmericanTypeSigns() {
+		return this == DrivingRegion.AUSTRALIA ||
+				this == DrivingRegion.US ||
+				this == DrivingRegion.CANADA;
+	}
+
+	public String getDescription(Context ctx) {
+		return ctx.getString(leftHandDriving ? R.string.left_side_navigation : R.string.right_side_navigation) +
+				", " +
+				defMetrics.toHumanString(ctx).toLowerCase();
+	}
+
+	public static DrivingRegion getDrivingRegionByLocale() {
+		Locale df = Locale.getDefault();
+		if (df == null) {
+			return DrivingRegion.EUROPE_ASIA;
+		}
+		if (df.getCountry().equalsIgnoreCase(Locale.US.getCountry())) {
+			return DrivingRegion.US;
+		} else if (df.getCountry().equalsIgnoreCase(Locale.CANADA.getCountry())) {
+			return DrivingRegion.CANADA;
+		} else if (df.getCountry().equalsIgnoreCase(Locale.JAPAN.getCountry())) {
+			return DrivingRegion.JAPAN;
+		} else if (df.getCountry().equalsIgnoreCase("au")) {
+			return DrivingRegion.AUSTRALIA;
+		} else if(df.getCountry().equalsIgnoreCase(Locale.UK.getCountry())) {
+			return DrivingRegion.UK_AND_OTHERS;
+		}
+		return DrivingRegion.EUROPE_ASIA;
+	}
+}

OsmAnd/src/net/osmand/plus/helpers/enums/MetricsConstants.java

@@ -0,0 +1,30 @@
+package net.osmand.plus.helpers.enums;
+
+import android.content.Context;
+
+import net.osmand.plus.R;
+
+public enum MetricsConstants {
+	KILOMETERS_AND_METERS(R.string.si_km_m, "km-m"),
+	MILES_AND_FEET(R.string.si_mi_feet, "mi-f"),
+	MILES_AND_METERS(R.string.si_mi_meters, "mi-m"),
+	MILES_AND_YARDS(R.string.si_mi_yard, "mi-y"),
+	NAUTICAL_MILES(R.string.si_nm, "nm");
+
+	private final int key;
+	private final String ttsString;
+
+	MetricsConstants(int key, String ttsString) {
+		this.key = key;
+		this.ttsString = ttsString;
+	}
+
+	public String toHumanString(Context ctx) {
+		return ctx.getString(key);
+	}
+
+	public String toTTSString() {
+		return ttsString;
+	}
+
+}

OsmAnd/src/net/osmand/plus/helpers/enums/SpeedConstants.java

@@ -0,0 +1,33 @@
+package net.osmand.plus.helpers.enums;
+
+import android.content.Context;
+
+import net.osmand.plus.R;
+
+public enum SpeedConstants {
+	KILOMETERS_PER_HOUR(R.string.km_h, R.string.si_kmh, false),
+	MILES_PER_HOUR(R.string.mile_per_hour, R.string.si_mph, true),
+	METERS_PER_SECOND(R.string.m_s, R.string.si_m_s, false),
+	MINUTES_PER_MILE(R.string.min_mile, R.string.si_min_m, true),
+	MINUTES_PER_KILOMETER(R.string.min_km, R.string.si_min_km, false),
+	NAUTICALMILES_PER_HOUR(R.string.nm_h, R.string.si_nm_h, true);
+
+	public final int key;
+	public final int descr;
+	public final boolean imperial;
+
+	SpeedConstants(int key, int descr, boolean imperial) {
+		this.key = key;
+		this.descr = descr;
+		this.imperial = imperial;
+	}
+
+	public String toHumanString(Context ctx) {
+		return ctx.getString(descr);
+	}
+
+	public String toShortString(Context ctx) {
+		return ctx.getString(key);
+	}
+
+}

OsmAnd/src/net/osmand/plus/helpers/enums/TracksSortByMode.java

@@ -0,0 +1,38 @@
+package net.osmand.plus.helpers.enums;
+
+import androidx.annotation.DrawableRes;
+import androidx.annotation.StringRes;
+
+import net.osmand.plus.R;
+
+public enum TracksSortByMode {
+	BY_DATE(R.string.sort_last_modified, R.drawable.ic_action_time_start),
+	BY_NAME_ASCENDING(R.string.sort_name_ascending, R.drawable.ic_action_sort_by_name_ascending),
+	BY_NAME_DESCENDING(R.string.sort_name_descending, R.drawable.ic_action_sort_by_name_descending);
+
+	private final int iconId;
+	private final int nameId;
+
+	TracksSortByMode(int nameId, int iconId) {
+		this.nameId = nameId;
+		this.iconId = iconId;
+	}
+
+	public boolean isByName() {
+		return this == BY_NAME_ASCENDING || this == BY_NAME_DESCENDING;
+	}
+
+	public boolean isByDate() {
+		return this == BY_DATE;
+	}
+
+	@StringRes
+	public int getNameId() {
+		return nameId;
+	}
+
+	@DrawableRes
+	public int getIconId() {
+		return iconId;
+	}
+}

OsmAnd/src/net/osmand/plus/liveupdates/LiveUpdatesFragment.java

@@ -314,7 +314,7 @@ public class LiveUpdatesFragment extends BaseOsmAndFragment implements InAppPurc
 
 		public void add(LocalIndexInfo info) {
 			CommonPreference<Boolean> preference = preferenceLiveUpdatesOn(
-					info.getFileName(), getSettings());
+					info.getFileName(), app.getSettings());
 			if (preference.get()) {
 				dataShouldUpdate.add(info);
 			} else {

OsmAnd/src/net/osmand/plus/mapcontextmenu/MapContextMenuFragment.java

@@ -76,7 +76,6 @@ import net.osmand.plus.mapcontextmenu.MenuController.TitleProgressController;
 import net.osmand.plus.mapcontextmenu.controllers.TransportStopController;
 import net.osmand.plus.routepreparationmenu.ChooseRouteFragment;
 import net.osmand.plus.routepreparationmenu.MapRouteInfoMenu;
-import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.transport.TransportStopRoute;
 import net.osmand.plus.views.AnimateDraggingMapThread;
 import net.osmand.plus.views.OsmandMapTileView;
@@ -644,7 +643,7 @@ public class MapContextMenuFragment extends BaseOsmAndFragment implements Downlo
 		// Action buttons
 		ContextMenuAdapter adapter = menu.getActionsContextMenuAdapter(false);
 		List<ContextMenuItem> items = adapter.getVisibleItems();
-		List<String> mainIds = ((OsmandSettings.MainContextMenuItemsSettings) mapActivity.getMyApplication()
+		List<String> mainIds = ((MainContextMenuItemsSettings) mapActivity.getMyApplication()
 				.getSettings().CONTEXT_MENU_ACTIONS_ITEMS.get()).getMainIds();
 		ContextMenuAdapter mainAdapter = new ContextMenuAdapter(requireMyApplication());
 		ContextMenuAdapter additionalAdapter = new ContextMenuAdapter(requireMyApplication());

OsmAnd/src/net/osmand/plus/mapcontextmenu/builders/AmenityMenuBuilder.java

@@ -36,8 +36,7 @@ import net.osmand.plus.mapcontextmenu.CollapsableView;
 import net.osmand.plus.mapcontextmenu.MenuBuilder;
 import net.osmand.plus.osmedit.OsmEditingPlugin;
 import net.osmand.plus.poi.PoiUIFilter;
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.helpers.enums.MetricsConstants;
-import net.osmand.plus.settings.backend.OsmandSettings.MetricsConstants;
 import net.osmand.plus.views.layers.POIMapLayer;
 import net.osmand.plus.widgets.TextViewEx;
 import net.osmand.plus.widgets.tools.ClickableSpanTouchListener;
@@ -70,7 +69,7 @@ public class AmenityMenuBuilder extends MenuBuilder {
 	private static final String WIKI_LINK = ".wikipedia.org/w";
 	public final static Log LOG = PlatformUtil.getLog(AmenityMenuBuilder.class);
 	private final static DecimalFormat DF = new DecimalFormat("#.##");
-	private OsmandSettings.MetricsConstants metricSystem;
+	private MetricsConstants metricSystem;
 	private final Amenity amenity;
 
 
@@ -714,10 +713,10 @@ public class AmenityMenuBuilder extends MenuBuilder {
 			case "seamark_height":
 				if (Algorithms.isFloat(value)) {
 					double valueAsDouble = Double.valueOf(value);
-					if (metricSystem == OsmandSettings.MetricsConstants.MILES_AND_FEET) {
+					if (metricSystem == MetricsConstants.MILES_AND_FEET) {
 						formattedValue = String.valueOf(DF.format(valueAsDouble * OsmAndFormatter.FEET_IN_ONE_METER))
 								+ " " + mapActivity.getResources().getString(R.string.foot);
-					} else if (metricSystem == OsmandSettings.MetricsConstants.MILES_AND_YARDS) {
+					} else if (metricSystem == MetricsConstants.MILES_AND_YARDS) {
 						formattedValue = String.valueOf(DF.format(valueAsDouble * OsmAndFormatter.YARDS_IN_ONE_METER))
 								+ " " + mapActivity.getResources().getString(R.string.yard);
 					} else {

OsmAnd/src/net/osmand/plus/mapmarkers/DirectionIndicationDialogFragment.java

@@ -32,7 +32,6 @@ import com.github.ksoichiro.android.observablescrollview.ScrollState;
 import net.osmand.AndroidUtils;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.MapMarkersMode;
 import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;

OsmAnd/src/net/osmand/plus/mapmarkers/MapMarkersMode.java

@@ -0,0 +1,37 @@
+package net.osmand.plus.mapmarkers;
+
+import android.content.Context;
+
+import net.osmand.plus.R;
+
+public enum MapMarkersMode {
+	TOOLBAR(R.string.shared_string_topbar),
+	WIDGETS(R.string.shared_string_widgets),
+	NONE(R.string.shared_string_none);
+
+	private final int key;
+
+	MapMarkersMode(int key) {
+		this.key = key;
+	}
+
+	public String toHumanString(Context ctx) {
+		return ctx.getString(key);
+	}
+
+	public boolean isToolbar() {
+		return this == TOOLBAR;
+	}
+
+	public boolean isWidgets() {
+		return this == WIDGETS;
+	}
+
+	public boolean isNone() {
+		return this == NONE;
+	}
+
+	public static MapMarkersMode[] possibleValues(Context context) {
+		return new MapMarkersMode[]{TOOLBAR, WIDGETS, NONE};
+	}
+}

OsmAnd/src/net/osmand/plus/mapmarkers/OptionsBottomSheetDialogFragment.java

@@ -14,7 +14,6 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import net.osmand.AndroidUtils;
-import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.R;
 import net.osmand.plus.base.BottomSheetDialogFragment;
 import net.osmand.plus.helpers.AndroidUiHelper;
@@ -63,7 +62,7 @@ public class OptionsBottomSheetDialogFragment extends BottomSheetDialogFragment
 		}
 
 		((ImageView) mainView.findViewById(R.id.sort_by_icon)).setImageDrawable(getContentIcon(R.drawable.ic_sort_waypoint_dark));
-		OsmandSettings.MapMarkersMode mode = getMyApplication().getSettings().MAP_MARKERS_MODE.get();
+		MapMarkersMode mode = getMyApplication().getSettings().MAP_MARKERS_MODE.get();
 		int displayedCount = getMyApplication().getSettings().DISPLAYED_MARKERS_WIDGETS_COUNT.get();
 		ImageView showDirectionIcon = (ImageView) mainView.findViewById(R.id.show_direction_icon);
 		int imageResId = 0;

OsmAnd/src/net/osmand/plus/measurementtool/SelectFileBottomSheet.java

@@ -25,6 +25,7 @@ import net.osmand.plus.base.bottomsheetmenu.BaseBottomSheetItem;
 import net.osmand.plus.helpers.GpxTrackAdapter;
 import net.osmand.plus.helpers.GpxTrackAdapter.OnItemClickListener;
 import net.osmand.plus.helpers.GpxUiHelper.GPXInfo;
+import net.osmand.plus.helpers.enums.TracksSortByMode;
 import net.osmand.plus.mapcontextmenu.other.HorizontalSelectionAdapter;
 import net.osmand.plus.mapcontextmenu.other.HorizontalSelectionAdapter.HorizontalSelectionAdapterListener;
 
@@ -38,7 +39,6 @@ import java.util.Map;
 
 import static net.osmand.plus.SimplePopUpMenuItemAdapter.*;
 import static net.osmand.plus.helpers.GpxUiHelper.getSortedGPXFilesInfo;
-import static net.osmand.plus.settings.backend.OsmandSettings.*;
 import static net.osmand.util.Algorithms.collectDirs;
 
 public class SelectFileBottomSheet extends BottomSheetBehaviourDialogFragment {

OsmAnd/src/net/osmand/plus/myplaces/AvailableGPXFragment.java

@@ -84,7 +84,7 @@ import net.osmand.plus.mapmarkers.CoordinateInputDialogFragment;
 import net.osmand.plus.monitoring.OsmandMonitoringPlugin;
 import net.osmand.plus.osmedit.OsmEditingPlugin;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.TracksSortByMode;
+import net.osmand.plus.helpers.enums.TracksSortByMode;
 
 import java.io.File;
 import java.text.DateFormat;

OsmAnd/src/net/osmand/plus/myplaces/TrackActivityFragmentAdapter.java

@@ -58,8 +58,6 @@ import net.osmand.plus.activities.TrackActivity;
 import net.osmand.plus.dialogs.GpxAppearanceAdapter;
 import net.osmand.plus.measurementtool.GpxData;
 import net.osmand.plus.myplaces.TrackBitmapDrawer.TrackBitmapDrawerListener;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
 import net.osmand.plus.track.GpxSplitType;
 import net.osmand.plus.track.SplitTrackAsyncTask;
 import net.osmand.plus.track.SplitTrackAsyncTask.SplitTrackListener;

OsmAnd/src/net/osmand/plus/parkingpoint/ParkingPositionPlugin.java

@@ -7,7 +7,6 @@ import android.content.Intent;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.text.format.DateFormat;
-import android.text.format.Time;
 import android.view.View;
 import android.widget.ArrayAdapter;
 import android.widget.CheckBox;
@@ -36,20 +35,15 @@ import net.osmand.plus.dashboard.tools.DashFragmentData;
 import net.osmand.plus.mapcontextmenu.MapContextMenu;
 import net.osmand.plus.quickaction.QuickActionType;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
 import net.osmand.plus.views.AnimateDraggingMapThread;
 import net.osmand.plus.views.layers.MapInfoLayer;
 import net.osmand.plus.views.OsmandMapLayer.DrawSettings;
 import net.osmand.plus.views.OsmandMapTileView;
 import net.osmand.plus.views.mapwidgets.widgets.TextInfoWidget;
 
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Calendar;
-import java.util.Date;
 import java.util.List;
-import java.util.Locale;
 
 import static net.osmand.aidlapi.OsmAndCustomizationConstants.MAP_CONTEXT_MENU_MARK_AS_PARKING_LOC;
 

OsmAnd/src/net/osmand/plus/quickaction/actions/DayNightModeAction.java

@@ -6,8 +6,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
 import net.osmand.plus.OsmandApplication;
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.helpers.enums.DayNightMode;
-import net.osmand.plus.settings.backend.OsmandSettings.DayNightMode;
 import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.quickaction.QuickAction;
@@ -27,9 +26,9 @@ public class DayNightModeAction extends QuickAction {
 	@Override
 	public void execute(MapActivity activity) {
 		if (activity.getMyApplication().getDaynightHelper().isNightMode()) {
-			activity.getMyApplication().getSettings().DAYNIGHT_MODE.set(OsmandSettings.DayNightMode.DAY);
+			activity.getMyApplication().getSettings().DAYNIGHT_MODE.set(DayNightMode.DAY);
 		} else {
-			activity.getMyApplication().getSettings().DAYNIGHT_MODE.set(OsmandSettings.DayNightMode.NIGHT);
+			activity.getMyApplication().getSettings().DAYNIGHT_MODE.set(DayNightMode.NIGHT);
 		}
 	}
 

OsmAnd/src/net/osmand/plus/rastermaps/LayerTransparencySeekbarMode.java

@@ -0,0 +1,22 @@
+package net.osmand.plus.rastermaps;
+
+import android.content.Context;
+
+import net.osmand.plus.R;
+
+public enum LayerTransparencySeekbarMode {
+	OVERLAY(R.string.overlay_transparency),
+	UNDERLAY(R.string.map_transparency),
+	OFF(R.string.shared_string_off),
+	UNDEFINED(R.string.shared_string_none);
+
+	private final int key;
+
+	LayerTransparencySeekbarMode(int key) {
+		this.key = key;
+	}
+
+	public String toHumanString(Context ctx) {
+		return ctx.getString(key);
+	}
+}

OsmAnd/src/net/osmand/plus/rastermaps/MapOverlayAction.java

@@ -16,7 +16,6 @@ import com.google.gson.reflect.TypeToken;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.LayerTransparencySeekbarMode;
 import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.activities.MapActivity;
@@ -137,7 +136,7 @@ public class MapOverlayAction extends SwitchableAction<Pair<String, String>> {
 				if (settings.LAYER_TRANSPARENCY_SEEKBAR_MODE.get() == LayerTransparencySeekbarMode.UNDEFINED) {
 					settings.LAYER_TRANSPARENCY_SEEKBAR_MODE.set(LayerTransparencySeekbarMode.OVERLAY);
 				}
-				if (settings.LAYER_TRANSPARENCY_SEEKBAR_MODE.get() == OsmandSettings.LayerTransparencySeekbarMode.OVERLAY) {
+				if (settings.LAYER_TRANSPARENCY_SEEKBAR_MODE.get() == LayerTransparencySeekbarMode.OVERLAY) {
 					activity.getMapLayers().getMapControlsLayer().showTransparencyBar(settings.MAP_OVERLAY_TRANSPARENCY, true);
 				}
 			} else {

OsmAnd/src/net/osmand/plus/rastermaps/MapUnderlayAction.java

@@ -17,7 +17,6 @@ import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.LayerTransparencySeekbarMode;
 import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.activities.MapActivity;

OsmAnd/src/net/osmand/plus/rastermaps/OsmandRasterMapsPlugin.java

@@ -31,7 +31,6 @@ import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.settings.backend.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.LayerTransparencySeekbarMode;
 import net.osmand.plus.R;
 import net.osmand.plus.Version;
 import net.osmand.plus.activities.DownloadTilesDialog;
@@ -41,9 +40,6 @@ import net.osmand.plus.activities.MapActivityLayers;
 import net.osmand.plus.dashboard.DashboardOnMap.DashboardType;
 import net.osmand.plus.dialogs.RasterMapMenu;
 import net.osmand.plus.quickaction.QuickActionType;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.LayerTransparencySeekbarMode;
 import net.osmand.plus.views.MapTileLayer;
 import net.osmand.plus.views.OsmandMapTileView;
 import net.osmand.util.Algorithms;
@@ -562,10 +558,10 @@ public class OsmandRasterMapsPlugin extends OsmandPlugin {
 		}
 		MapActivityLayers mapLayers = mapActivity.getMapLayers();
 		ITileSource map = layer.getMap();
-		final OsmandSettings.LayerTransparencySeekbarMode currentMapTypeSeekbarMode = type ==
+		final LayerTransparencySeekbarMode currentMapTypeSeekbarMode = type ==
 			OsmandRasterMapsPlugin.RasterMapType.OVERLAY
-			? OsmandSettings.LayerTransparencySeekbarMode.OVERLAY
+			? LayerTransparencySeekbarMode.OVERLAY
-			: OsmandSettings.LayerTransparencySeekbarMode.UNDERLAY;
+			: LayerTransparencySeekbarMode.UNDERLAY;
 		if (map != null) {
 			mapTypePreference.set(null);
 			if (callback != null) {

OsmAnd/src/net/osmand/plus/routepreparationmenu/MapRouteInfoMenu.java

@@ -105,9 +105,6 @@ import net.osmand.plus.routing.RoutingHelper;
 import net.osmand.plus.routing.TransportRoutingHelper;
 import net.osmand.plus.search.QuickSearchHelper;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
 import net.osmand.plus.widgets.TextViewExProgress;
 import net.osmand.router.GeneralRouter;
 import net.osmand.router.GeneralRouter.RoutingParameter;

OsmAnd/src/net/osmand/plus/routing/RouteProvider.java

@@ -30,13 +30,10 @@ import net.osmand.plus.TargetPointsHelper.TargetPoint;
 import net.osmand.plus.Version;
 import net.osmand.plus.render.NativeOsmandLibrary;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
 import net.osmand.router.GeneralRouter;
 import net.osmand.router.GeneralRouter.RoutingParameter;
 import net.osmand.router.GeneralRouter.RoutingParameterType;
 import net.osmand.router.PrecalculatedRouteDirection;
-import net.osmand.router.RouteCalculationProgress;
 import net.osmand.router.RouteExporter;
 import net.osmand.router.RouteImporter;
 import net.osmand.router.RoutePlannerFrontEnd;

OsmAnd/src/net/osmand/plus/routing/RoutingHelper.java

@@ -21,6 +21,7 @@ import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.R;
 import net.osmand.plus.TargetPointsHelper;
 import net.osmand.plus.TargetPointsHelper.TargetPoint;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.notifications.OsmandNotification.NotificationType;
 import net.osmand.plus.routing.RouteCalculationResult.NextDirectionInfo;
 import net.osmand.plus.routing.RouteProvider.GPXRouteParamsBuilder;
@@ -408,8 +409,8 @@ public class RoutingHelper {
 		} else if (mode.getRouteService() == RouteService.DIRECT_TO) {
 			return -1.0f;
 		} else if (mode.getRouteService() == RouteService.STRAIGHT) {
-			OsmandSettings.MetricsConstants mc = settings.METRIC_SYSTEM.getModeValue(mode);
+			MetricsConstants mc = settings.METRIC_SYSTEM.getModeValue(mode);
-			if (mc == OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS || mc == OsmandSettings.MetricsConstants.MILES_AND_METERS) {
+			if (mc == MetricsConstants.KILOMETERS_AND_METERS || mc == MetricsConstants.MILES_AND_METERS) {
 				return 500.f;
 			} else {
 				// 1/4 mile

OsmAnd/src/net/osmand/plus/settings/backend/BooleanAccessibilityPreference.java

@@ -1,7 +1,5 @@
 package net.osmand.plus.settings.backend;
 
-import net.osmand.plus.ApplicationMode;
-
 class BooleanAccessibilityPreference extends BooleanPreference {
 
 	BooleanAccessibilityPreference(OsmandSettings osmandSettings, String id, boolean defaultValue) {

OsmAnd/src/net/osmand/plus/settings/backend/BooleanStringPreference.java

@@ -0,0 +1,25 @@
+package net.osmand.plus.settings.backend;
+
+public class BooleanStringPreference extends BooleanPreference {
+
+	public BooleanStringPreference(OsmandSettings osmandSettings, String id, boolean defaultValue) {
+		super(osmandSettings, id, defaultValue);
+	}
+
+	@Override
+	public Boolean getValue(Object prefs, Boolean defaultValue) {
+		Boolean value;
+		try {
+			value = parseString(getSettingsAPI().getString(prefs, getId(), defaultValue.toString()));
+		} catch (ClassCastException e) {
+			value = getSettingsAPI().getBoolean(prefs, getId(), defaultValue);
+			setValue(prefs, value);
+		}
+		return value;
+	}
+
+	@Override
+	protected boolean setValue(Object prefs, Boolean val) {
+		return getSettingsAPI().edit(prefs).putString(getId(), val != null ? val.toString() : null).commit();
+	}
+}

OsmAnd/src/net/osmand/plus/settings/backend/CommonPreference.java

@@ -1,6 +1,5 @@
 package net.osmand.plus.settings.backend;
 
-import net.osmand.plus.ApplicationMode;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.api.SettingsAPI;
 

OsmAnd/src/net/osmand/plus/settings/backend/ListStringPreference.java

@@ -1,7 +1,5 @@
 package net.osmand.plus.settings.backend;
 
-import net.osmand.plus.ApplicationMode;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;

OsmAnd/src/net/osmand/plus/settings/backend/OsmAndPreferencesDataStore.java

@@ -1,7 +1,5 @@
 package net.osmand.plus.settings.backend;
 
-import net.osmand.plus.ApplicationMode;
-
 import java.util.Set;
 
 import androidx.annotation.NonNull;

OsmAnd/src/net/osmand/plus/settings/backend/OsmandPreference.java

@@ -1,7 +1,6 @@
 package net.osmand.plus.settings.backend;
 
 import net.osmand.StateChangedListener;
-import net.osmand.plus.ApplicationMode;
 
 import org.json.JSONException;
 import org.json.JSONObject;

OsmAnd/src/net/osmand/plus/settings/backend/OsmandSettings.java

@@ -6,29 +6,19 @@ import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
-import android.hardware.Sensor;
-import android.hardware.SensorManager;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.os.Build;
 import android.os.Environment;
 
-import androidx.annotation.DrawableRes;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.annotation.StringRes;
 import androidx.core.util.Pair;
-import androidx.preference.PreferenceDataStore;
-
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.reflect.TypeToken;
 
+import net.osmand.FileUtils;
 import net.osmand.IndexConstants;
 import net.osmand.PlatformUtil;
 import net.osmand.ValueHolder;
-import net.osmand.data.FavouritePoint;
-import net.osmand.aidl.OsmandAidlApi;
 import net.osmand.data.LatLon;
 import net.osmand.data.PointDescription;
 import net.osmand.map.ITileSource;
@@ -36,8 +26,6 @@ import net.osmand.map.TileSourceManager;
 import net.osmand.map.TileSourceManager.TileSourceTemplate;
 import net.osmand.osm.MapPoiTypes;
 import net.osmand.osm.io.NetworkUtils;
-import net.osmand.plus.ApplicationMode;
-import net.osmand.plus.FavouritesDbHelper;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
 import net.osmand.plus.SQLiteTileSource;
@@ -46,19 +34,30 @@ import net.osmand.plus.access.RelativeDirectionStyle;
 import net.osmand.plus.api.SettingsAPI;
 import net.osmand.plus.api.SettingsAPI.SettingsEditor;
 import net.osmand.plus.api.SettingsAPIImpl;
+import net.osmand.plus.audionotes.NotesSortByMode;
 import net.osmand.plus.dialogs.RateUsBottomSheetDialogFragment.RateUsState;
+import net.osmand.plus.helpers.enums.AngularConstants;
+import net.osmand.plus.helpers.enums.AutoZoomMap;
 import net.osmand.plus.helpers.AvoidSpecificRoads.AvoidRoadInfo;
+import net.osmand.plus.helpers.enums.DayNightMode;
+import net.osmand.plus.helpers.enums.DrivingRegion;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.helpers.SearchHistoryHelper;
+import net.osmand.plus.helpers.enums.SpeedConstants;
+import net.osmand.plus.helpers.enums.TracksSortByMode;
 import net.osmand.plus.mapillary.MapillaryPlugin;
 import net.osmand.plus.mapmarkers.CoordinateInputFormats.Format;
+import net.osmand.plus.mapmarkers.MapMarkersMode;
 import net.osmand.plus.profiles.LocationIcon;
 import net.osmand.plus.profiles.NavigationIcon;
 import net.osmand.plus.profiles.ProfileIconColors;
+import net.osmand.plus.rastermaps.LayerTransparencySeekbarMode;
 import net.osmand.plus.render.RendererRegistry;
 import net.osmand.plus.routing.RouteProvider.RouteService;
-import net.osmand.plus.settings.backend.ApplicationMode.ApplicationModeBean;
+import net.osmand.plus.srtmplugin.TerrainMode;
-import net.osmand.plus.settings.backend.ApplicationMode.ApplicationModeBuilder;
+import net.osmand.plus.views.layers.RulerMode;
 import net.osmand.plus.voice.CommandPlayer;
+import net.osmand.plus.wikipedia.WikiArticleShowImages;
 import net.osmand.render.RenderingRulesStorage;
 import net.osmand.util.Algorithms;
 
@@ -78,7 +77,6 @@ import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.List;
-import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.StringTokenizer;
@@ -213,7 +211,7 @@ public class OsmandSettings {
 	}
 
 	// TODO doesn't look correct package visibility
-	public Object getProfilePreferences(String modeKey) {
+	Object getProfilePreferences(String modeKey) {
 		return settingsAPI.getPreferenceObject(getSharedPreferencesNameForKey(modeKey));
 	}
 
@@ -693,51 +691,47 @@ public class OsmandSettings {
 		return false;
 	}
 
-	public final CommonPreference<RulerMode> RULER_MODE = new EnumStringPreference<>("ruler_mode", RulerMode.FIRST, RulerMode.values()).makeGlobal();
+	public final CommonPreference<RulerMode> RULER_MODE = new EnumStringPreference<>(this, "ruler_mode", RulerMode.FIRST, RulerMode.values()).makeGlobal();
 
-	public final OsmandPreference<Boolean> SHOW_COMPASS_CONTROL_RULER = new BooleanPreference("show_compass_ruler", true).makeGlobal();
+	public final OsmandPreference<Boolean> SHOW_COMPASS_CONTROL_RULER = new BooleanPreference(this, "show_compass_ruler", true).makeGlobal();
 
-	public final CommonPreference<Boolean> SHOW_LINES_TO_FIRST_MARKERS = new BooleanPreference("show_lines_to_first_markers", false).makeProfile();
+	public final CommonPreference<Boolean> SHOW_LINES_TO_FIRST_MARKERS = new BooleanPreference(this, "show_lines_to_first_markers", false).makeProfile();
-	public final CommonPreference<Boolean> SHOW_ARROWS_TO_FIRST_MARKERS = new BooleanPreference("show_arrows_to_first_markers", false).makeProfile();
+	public final CommonPreference<Boolean> SHOW_ARROWS_TO_FIRST_MARKERS = new BooleanPreference(this, "show_arrows_to_first_markers", false).makeProfile();
 
-	public final CommonPreference<Boolean> WIKI_ARTICLE_SHOW_IMAGES_ASKED = new BooleanPreference("wikivoyage_show_images_asked", false).makeGlobal();
+	public final CommonPreference<Boolean> WIKI_ARTICLE_SHOW_IMAGES_ASKED = new BooleanPreference(this, "wikivoyage_show_images_asked", false).makeGlobal();
-	public final CommonPreference<WikiArticleShowImages> WIKI_ARTICLE_SHOW_IMAGES = new EnumStringPreference<>("wikivoyage_show_imgs", WikiArticleShowImages.OFF, WikiArticleShowImages.values()).makeGlobal();
+	public final CommonPreference<WikiArticleShowImages> WIKI_ARTICLE_SHOW_IMAGES = new EnumStringPreference<>(this, "wikivoyage_show_imgs", WikiArticleShowImages.OFF, WikiArticleShowImages.values()).makeGlobal();
-	public final CommonPreference<Boolean> GLOBAL_WIKIPEDIA_POI_ENABLED = new BooleanPreference("global_wikipedia_poi_enabled", false).makeProfile();
+	public final CommonPreference<Boolean> GLOBAL_WIKIPEDIA_POI_ENABLED = new BooleanPreference(this, "global_wikipedia_poi_enabled", false).makeProfile();
-	public final ListStringPreference WIKIPEDIA_POI_ENABLED_LANGUAGES = (ListStringPreference) new ListStringPreference("wikipedia_poi_enabled_languages", null, ",").makeProfile().cache();
+	public final ListStringPreference WIKIPEDIA_POI_ENABLED_LANGUAGES = (ListStringPreference) new ListStringPreference(this, "wikipedia_poi_enabled_languages", null, ",").makeProfile().cache();
 
-	public final CommonPreference<Boolean> SELECT_MARKER_ON_SINGLE_TAP = new BooleanPreference("select_marker_on_single_tap", false).makeProfile();
+	public final CommonPreference<Boolean> SELECT_MARKER_ON_SINGLE_TAP = new BooleanPreference(this, "select_marker_on_single_tap", false).makeProfile();
-	public final CommonPreference<Boolean> KEEP_PASSED_MARKERS_ON_MAP = new BooleanPreference("keep_passed_markers_on_map", true).makeProfile();
+	public final CommonPreference<Boolean> KEEP_PASSED_MARKERS_ON_MAP = new BooleanPreference(this, "keep_passed_markers_on_map", true).makeProfile();
 
-	public final CommonPreference<Boolean> COORDS_INPUT_USE_RIGHT_SIDE = new BooleanPreference("coords_input_use_right_side", true).makeGlobal();
+	public final CommonPreference<Boolean> COORDS_INPUT_USE_RIGHT_SIDE = new BooleanPreference(this, "coords_input_use_right_side", true).makeGlobal();
-	public final OsmandPreference<Format> COORDS_INPUT_FORMAT = new EnumStringPreference<>("coords_input_format", Format.DD_MM_MMM, Format.values()).makeGlobal();
+	public final OsmandPreference<Format> COORDS_INPUT_FORMAT = new EnumStringPreference<>(this, "coords_input_format", Format.DD_MM_MMM, Format.values()).makeGlobal();
-	public final CommonPreference<Boolean> COORDS_INPUT_USE_OSMAND_KEYBOARD = new BooleanPreference("coords_input_use_osmand_keyboard", Build.VERSION.SDK_INT >= 16).makeGlobal();
+	public final CommonPreference<Boolean> COORDS_INPUT_USE_OSMAND_KEYBOARD = new BooleanPreference(this, "coords_input_use_osmand_keyboard", Build.VERSION.SDK_INT >= 16).makeGlobal();
-	public final CommonPreference<Boolean> COORDS_INPUT_TWO_DIGITS_LONGTITUDE = new BooleanPreference("coords_input_two_digits_longitude", false).makeGlobal();
+	public final CommonPreference<Boolean> COORDS_INPUT_TWO_DIGITS_LONGTITUDE = new BooleanPreference(this, "coords_input_two_digits_longitude", false).makeGlobal();
 
-	public final CommonPreference<Boolean> USE_MAPILLARY_FILTER = new BooleanPreference("use_mapillary_filters", false).makeGlobal();
+	public final CommonPreference<Boolean> USE_MAPILLARY_FILTER = new BooleanPreference(this, "use_mapillary_filters", false).makeGlobal();
-	public final CommonPreference<String> MAPILLARY_FILTER_USER_KEY = new StringPreference("mapillary_filter_user_key", "").makeGlobal();
+	public final CommonPreference<String> MAPILLARY_FILTER_USER_KEY = new StringPreference(this, "mapillary_filter_user_key", "").makeGlobal();
-	public final CommonPreference<String> MAPILLARY_FILTER_USERNAME = new StringPreference("mapillary_filter_username", "").makeGlobal();
+	public final CommonPreference<String> MAPILLARY_FILTER_USERNAME = new StringPreference(this, "mapillary_filter_username", "").makeGlobal();
-	public final CommonPreference<Long> MAPILLARY_FILTER_FROM_DATE = new LongPreference("mapillary_filter_from_date", 0).makeGlobal();
+	public final CommonPreference<Long> MAPILLARY_FILTER_FROM_DATE = new LongPreference(this, "mapillary_filter_from_date", 0).makeGlobal();
-	public final CommonPreference<Long> MAPILLARY_FILTER_TO_DATE = new LongPreference("mapillary_filter_to_date", 0).makeGlobal();
+	public final CommonPreference<Long> MAPILLARY_FILTER_TO_DATE = new LongPreference(this, "mapillary_filter_to_date", 0).makeGlobal();
-	public final CommonPreference<Boolean> MAPILLARY_FILTER_PANO = new BooleanPreference("mapillary_filter_pano", false).makeGlobal();
+	public final CommonPreference<Boolean> MAPILLARY_FILTER_PANO = new BooleanPreference(this, "mapillary_filter_pano", false).makeGlobal();
 
-	public final CommonPreference<Boolean> USE_FAST_RECALCULATION = new BooleanPreference("use_fast_recalculation", true).makeGlobal().cache();
+	public final CommonPreference<Boolean> USE_FAST_RECALCULATION = new BooleanPreference(this, "use_fast_recalculation", true).makeGlobal().cache();
-	public final CommonPreference<Boolean> FORCE_PRIVATE_ACCESS_ROUTING_ASKED = new BooleanPreference("force_private_access_routing", false).makeProfile().cache();
+	public final CommonPreference<Boolean> FORCE_PRIVATE_ACCESS_ROUTING_ASKED = new BooleanPreference(this, "force_private_access_routing", false).makeProfile().cache();
 
-	public final CommonPreference<Boolean> SHOW_CARD_TO_CHOOSE_DRAWER = new BooleanPreference("show_card_to_choose_drawer", false).makeGlobal();
+	public final CommonPreference<Boolean> SHOW_CARD_TO_CHOOSE_DRAWER = new BooleanPreference(this, "show_card_to_choose_drawer", false).makeGlobal();
-	public final CommonPreference<Boolean> SHOW_DASHBOARD_ON_START = new BooleanPreference("should_show_dashboard_on_start", false).makeGlobal();
+	public final CommonPreference<Boolean> SHOW_DASHBOARD_ON_START = new BooleanPreference(this, "should_show_dashboard_on_start", false).makeGlobal();
-	public final CommonPreference<Boolean> SHOW_DASHBOARD_ON_MAP_SCREEN = new BooleanPreference("show_dashboard_on_map_screen", false).makeGlobal();
+	public final CommonPreference<Boolean> SHOW_DASHBOARD_ON_MAP_SCREEN = new BooleanPreference(this, "show_dashboard_on_map_screen", false).makeGlobal();
-	public final CommonPreference<Boolean> SHOW_OSMAND_WELCOME_SCREEN = new BooleanPreference("show_osmand_welcome_screen", true).makeGlobal();
+	public final CommonPreference<Boolean> SHOW_OSMAND_WELCOME_SCREEN = new BooleanPreference(this, "show_osmand_welcome_screen", true).makeGlobal();
 
-	public final CommonPreference<String> API_NAV_DRAWER_ITEMS_JSON = new StringPreference("api_nav_drawer_items_json", "{}").makeGlobal();
+	public final CommonPreference<String> API_NAV_DRAWER_ITEMS_JSON = new StringPreference(this, "api_nav_drawer_items_json", "{}").makeGlobal();
-	public final CommonPreference<String> API_CONNECTED_APPS_JSON = new StringPreference("api_connected_apps_json", "[]").makeGlobal();
+	public final CommonPreference<String> API_CONNECTED_APPS_JSON = new StringPreference(this, "api_connected_apps_json", "[]").makeGlobal();
-	public final CommonPreference<String> NAV_DRAWER_LOGO = new StringPreference("drawer_logo", "").makeProfile();
+	public final CommonPreference<String> NAV_DRAWER_LOGO = new StringPreference(this, "drawer_logo", "").makeProfile();
-	public final CommonPreference<String> NAV_DRAWER_URL = new StringPreference("drawer_url", "").makeProfile();
+	public final CommonPreference<String> NAV_DRAWER_URL = new StringPreference(this, "drawer_url", "").makeProfile();
 
-	public final CommonPreference<Integer> NUMBER_OF_STARTS_FIRST_XMAS_SHOWN = new IntPreference("number_of_starts_first_xmas_shown", 0).makeGlobal();
+	public final CommonPreference<Integer> NUMBER_OF_STARTS_FIRST_XMAS_SHOWN = new IntPreference(this, "number_of_starts_first_xmas_shown", 0).makeGlobal();
-
-	public final OsmandPreference<String> AVAILABLE_APP_MODES = new StringPreference("available_application_modes", "car,bicycle,pedestrian,public_transport,").makeGlobal().cache();
-
-	public final OsmandPreference<String> LAST_FAV_CATEGORY_ENTERED = new StringPreference("last_fav_category", "").makeGlobal();
 
 	public final OsmandPreference<String> AVAILABLE_APP_MODES = new StringPreference(this, "available_application_modes", "car,bicycle,pedestrian,public_transport,").makeGlobal().cache();
 
@@ -844,22 +838,7 @@ public class OsmandSettings {
 		}
 
 		protected DrivingRegion getDefaultValue() {
-			Locale df = Locale.getDefault();
+			return DrivingRegion.getDrivingRegionByLocale();
-			if (df == null) {
-				return DrivingRegion.EUROPE_ASIA;
-			}
-			if (df.getCountry().equalsIgnoreCase(Locale.US.getCountry())) {
-				return DrivingRegion.US;
-			} else if (df.getCountry().equalsIgnoreCase(Locale.CANADA.getCountry())) {
-				return DrivingRegion.CANADA;
-			} else if (df.getCountry().equalsIgnoreCase(Locale.JAPAN.getCountry())) {
-				return DrivingRegion.JAPAN;
-			} else if (df.getCountry().equalsIgnoreCase("au")) {
-				return DrivingRegion.AUSTRALIA;
-			} else if(df.getCountry().equalsIgnoreCase(Locale.UK.getCountry())) {
-				return DrivingRegion.UK_AND_OTHERS;
-			}
-			return DrivingRegion.EUROPE_ASIA;
 		}
 
 	}.makeProfile().cache();
@@ -1047,24 +1026,24 @@ public class OsmandSettings {
 
 	// this value string is synchronized with settings_pref.xml preference name
 	public final OsmandPreference<Boolean> DISABLE_OFFROUTE_RECALC =
-		new BooleanPreference(this,"disable_offroute_recalc", false).makeProfile();
+			new BooleanPreference(this, "disable_offroute_recalc", false).makeProfile();
 
 	// this value string is synchronized with settings_pref.xml preference name
 	public final OsmandPreference<Boolean> DISABLE_WRONG_DIRECTION_RECALC =
-		new BooleanPreference("disable_wrong_direction_recalc", false).makeProfile();
+			new BooleanPreference(this, "disable_wrong_direction_recalc", false).makeProfile();
 
 	// this value string is synchronized with settings_pref.xml preference name
 	public final OsmandPreference<Boolean> DIRECTION_AUDIO_FEEDBACK =
-		new BooleanAccessibilityPreference(this, "direction_audio_feedback", false).makeProfile();
+			new BooleanAccessibilityPreference(this, "direction_audio_feedback", false).makeProfile();
 
 	// this value string is synchronized with settings_pref.xml preference name
 	public final OsmandPreference<Boolean> DIRECTION_HAPTIC_FEEDBACK =
-		new BooleanAccessibilityPreference(this, "direction_haptic_feedback", false).makeProfile();
+			new BooleanAccessibilityPreference(this, "direction_haptic_feedback", false).makeProfile();
 
 	// magnetic field doesn'torkmost of the time on some phones
-	public final OsmandPreference<Boolean> USE_MAGNETIC_FIELD_SENSOR_COMPASS = new BooleanPreference("use_magnetic_field_sensor_compass", false).makeProfile().cache();
+	public final OsmandPreference<Boolean> USE_MAGNETIC_FIELD_SENSOR_COMPASS = new BooleanPreference(this, "use_magnetic_field_sensor_compass", false).makeProfile().cache();
-	public final OsmandPreference<Boolean> USE_KALMAN_FILTER_FOR_COMPASS = new BooleanPreference("use_kalman_filter_compass", true).makeProfile().cache();
+	public final OsmandPreference<Boolean> USE_KALMAN_FILTER_FOR_COMPASS = new BooleanPreference(this, "use_kalman_filter_compass", true).makeProfile().cache();
-	public final OsmandPreference<Boolean> USE_VOLUME_BUTTONS_AS_ZOOM = new BooleanPreference("use_volume_buttons_as_zoom", false).makeProfile().cache();
+	public final OsmandPreference<Boolean> USE_VOLUME_BUTTONS_AS_ZOOM = new BooleanPreference(this, "use_volume_buttons_as_zoom", false).makeProfile().cache();
 
 	public final OsmandPreference<Boolean> DO_NOT_SHOW_STARTUP_MESSAGES = new BooleanPreference(this, "do_not_show_startup_messages", false).makeGlobal().cache();
 	public final OsmandPreference<Boolean> SHOW_DOWNLOAD_MAP_DIALOG = new BooleanPreference(this, "show_download_map_dialog", true).makeGlobal().cache();
@@ -1117,23 +1096,23 @@ public class OsmandSettings {
 
 	public final OsmandPreference<Boolean> INAPPS_READ = new BooleanPreference(this, "inapps_read", false).makeGlobal();
 
-	public final OsmandPreference<String> BILLING_USER_ID = new StringPreference("billing_user_id", "").makeGlobal();
+	public final OsmandPreference<String> BILLING_USER_ID = new StringPreference(this, "billing_user_id", "").makeGlobal();
-	public final OsmandPreference<String> BILLING_USER_TOKEN = new StringPreference("billing_user_token", "").makeGlobal();
+	public final OsmandPreference<String> BILLING_USER_TOKEN = new StringPreference(this, "billing_user_token", "").makeGlobal();
-	public final OsmandPreference<String> BILLING_USER_NAME = new StringPreference("billing_user_name", "").makeGlobal();
+	public final OsmandPreference<String> BILLING_USER_NAME = new StringPreference(this, "billing_user_name", "").makeGlobal();
-	public final OsmandPreference<String> BILLING_USER_EMAIL = new StringPreference("billing_user_email", "").makeGlobal();
+	public final OsmandPreference<String> BILLING_USER_EMAIL = new StringPreference(this, "billing_user_email", "").makeGlobal();
-	public final OsmandPreference<String> BILLING_USER_COUNTRY = new StringPreference("billing_user_country", "").makeGlobal();
+	public final OsmandPreference<String> BILLING_USER_COUNTRY = new StringPreference(this, "billing_user_country", "").makeGlobal();
-	public final OsmandPreference<String> BILLING_USER_COUNTRY_DOWNLOAD_NAME = new StringPreference("billing_user_country_download_name", BILLING_USER_DONATION_NONE_PARAMETER).makeGlobal();
+	public final OsmandPreference<String> BILLING_USER_COUNTRY_DOWNLOAD_NAME = new StringPreference(this, "billing_user_country_download_name", BILLING_USER_DONATION_NONE_PARAMETER).makeGlobal();
-	public final OsmandPreference<Boolean> BILLING_HIDE_USER_NAME = new BooleanPreference("billing_hide_user_name", false).makeGlobal();
+	public final OsmandPreference<Boolean> BILLING_HIDE_USER_NAME = new BooleanPreference(this, "billing_hide_user_name", false).makeGlobal();
-	public final OsmandPreference<Boolean> BILLING_PURCHASE_TOKEN_SENT = new BooleanPreference("billing_purchase_token_sent", false).makeGlobal();
+	public final OsmandPreference<Boolean> BILLING_PURCHASE_TOKEN_SENT = new BooleanPreference(this, "billing_purchase_token_sent", false).makeGlobal();
-	public final OsmandPreference<String> BILLING_PURCHASE_TOKENS_SENT = new StringPreference("billing_purchase_tokens_sent", "").makeGlobal();
+	public final OsmandPreference<String> BILLING_PURCHASE_TOKENS_SENT = new StringPreference(this, "billing_purchase_tokens_sent", "").makeGlobal();
-	public final OsmandPreference<Boolean> LIVE_UPDATES_PURCHASED = new BooleanPreference("billing_live_updates_purchased", false).makeGlobal();
+	public final OsmandPreference<Boolean> LIVE_UPDATES_PURCHASED = new BooleanPreference(this, "billing_live_updates_purchased", false).makeGlobal();
-	public final OsmandPreference<Long> LIVE_UPDATES_PURCHASE_CANCELLED_TIME = new LongPreference("live_updates_purchase_cancelled_time", 0).makeGlobal();
+	public final OsmandPreference<Long> LIVE_UPDATES_PURCHASE_CANCELLED_TIME = new LongPreference(this, "live_updates_purchase_cancelled_time", 0).makeGlobal();
-	public final OsmandPreference<Boolean> LIVE_UPDATES_PURCHASE_CANCELLED_FIRST_DLG_SHOWN = new BooleanPreference("live_updates_purchase_cancelled_first_dlg_shown", false).makeGlobal();
+	public final OsmandPreference<Boolean> LIVE_UPDATES_PURCHASE_CANCELLED_FIRST_DLG_SHOWN = new BooleanPreference(this, "live_updates_purchase_cancelled_first_dlg_shown", false).makeGlobal();
-	public final OsmandPreference<Boolean> LIVE_UPDATES_PURCHASE_CANCELLED_SECOND_DLG_SHOWN = new BooleanPreference("live_updates_purchase_cancelled_second_dlg_shown", false).makeGlobal();
+	public final OsmandPreference<Boolean> LIVE_UPDATES_PURCHASE_CANCELLED_SECOND_DLG_SHOWN = new BooleanPreference(this, "live_updates_purchase_cancelled_second_dlg_shown", false).makeGlobal();
-	public final OsmandPreference<Boolean> FULL_VERSION_PURCHASED = new BooleanPreference("billing_full_version_purchased", false).makeGlobal();
+	public final OsmandPreference<Boolean> FULL_VERSION_PURCHASED = new BooleanPreference(this, "billing_full_version_purchased", false).makeGlobal();
-	public final OsmandPreference<Boolean> DEPTH_CONTOURS_PURCHASED = new BooleanPreference("billing_sea_depth_purchased", false).makeGlobal();
+	public final OsmandPreference<Boolean> DEPTH_CONTOURS_PURCHASED = new BooleanPreference(this, "billing_sea_depth_purchased", false).makeGlobal();
-	public final OsmandPreference<Boolean> CONTOUR_LINES_PURCHASED = new BooleanPreference("billing_srtm_purchased", false).makeGlobal();
+	public final OsmandPreference<Boolean> CONTOUR_LINES_PURCHASED = new BooleanPreference(this, "billing_srtm_purchased", false).makeGlobal();
-	public final OsmandPreference<Boolean> EMAIL_SUBSCRIBED = new BooleanPreference("email_subscribed", false).makeGlobal();
+	public final OsmandPreference<Boolean> EMAIL_SUBSCRIBED = new BooleanPreference(this, "email_subscribed", false).makeGlobal();
 
 	public final OsmandPreference<Integer> DISCOUNT_ID = new IntPreference(this, "discount_id", 0).makeGlobal();
 	public final OsmandPreference<Integer> DISCOUNT_SHOW_NUMBER_OF_STARTS = new IntPreference(this, "number_of_starts_on_discount_show", 0).makeGlobal();
@@ -1284,17 +1263,19 @@ public class OsmandSettings {
 	{
 		SPEAK_TRAFFIC_WARNINGS.setModeDefaultValue(ApplicationMode.CAR, true);
 	}
+
 	public final CommonPreference<Boolean> SPEAK_PEDESTRIAN = new BooleanPreference(this, "speak_pedestrian", false).makeProfile().cache();
+
 	{
 		SPEAK_PEDESTRIAN.setModeDefaultValue(ApplicationMode.CAR, true);
 	}
+
 	public final OsmandPreference<Boolean> SPEAK_SPEED_LIMIT = new BooleanPreference(this, "speak_speed_limit", false).makeProfile().cache();
 	public final OsmandPreference<Boolean> SPEAK_SPEED_CAMERA = new BooleanPreference(this, "speak_cameras", false).makeProfile().cache();
 	public final OsmandPreference<Boolean> SPEAK_TUNNELS = new BooleanPreference(this, "speak_tunnels", false).makeProfile().cache();
 
-	public final OsmandPreference<Boolean> ANNOUNCE_WPT = new BooleanPreference(this, "announce_wpt", true) {
+	public final OsmandPreference<Boolean> SPEED_CAMERAS_UNINSTALLED = new BooleanPreference(this, "speed_cameras_uninstalled", false).makeGlobal();
-	public final OsmandPreference<Boolean> SPEED_CAMERAS_UNINSTALLED = new BooleanPreference("speed_cameras_uninstalled", false).makeGlobal();
+	public final OsmandPreference<Boolean> SPEED_CAMERAS_ALERT_SHOWED = new BooleanPreference(this, "speed_cameras_alert_showed", false).makeGlobal();
-	public final OsmandPreference<Boolean> SPEED_CAMERAS_ALERT_SHOWED = new BooleanPreference("speed_cameras_alert_showed", false).makeGlobal();
 
 	public Set<String> getForbiddenTypes() {
 		Set<String> typeNames = new HashSet<>();
@@ -1304,7 +1285,7 @@ public class OsmandSettings {
 		return typeNames;
 	}
 
-	public final OsmandPreference<Boolean> ANNOUNCE_WPT = new BooleanPreference("announce_wpt", true) {
+	public final OsmandPreference<Boolean> ANNOUNCE_WPT = new BooleanPreference(this, "announce_wpt", true) {
 		@Override
 		protected boolean setValue(Object prefs, Boolean val) {
 			boolean valueSaved = super.setValue(prefs, val);
@@ -1343,11 +1324,7 @@ public class OsmandSettings {
 	public final OsmandPreference<Boolean> GPX_ROUTE_CALC_OSMAND_PARTS = new BooleanPreference(this, "gpx_routing_calculate_osmand_route", true).makeGlobal().cache();
 	public final OsmandPreference<Boolean> GPX_CALCULATE_RTEPT = new BooleanPreference(this, "gpx_routing_calculate_rtept", true).makeGlobal().cache();
 	public final OsmandPreference<Boolean> GPX_ROUTE_CALC = new BooleanPreference(this, "calc_gpx_route", false).makeGlobal().cache();
-	public final OsmandPreference<Boolean> SHOW_START_FINISH_ICONS = new BooleanPreference("show_start_finish_icons", true).makeGlobal().cache();
+	public final OsmandPreference<Boolean> SHOW_START_FINISH_ICONS = new BooleanPreference(this, "show_start_finish_icons", true).makeGlobal().cache();
-
-	public final OsmandPreference<Boolean> GPX_ROUTE_CALC_OSMAND_PARTS = new BooleanPreference("gpx_routing_calculate_osmand_route", true).makeGlobal().cache();
-//	public final OsmandPreference<Boolean> GPX_CALCULATE_RTEPT = new BooleanPreference("gpx_routing_calculate_rtept", true).makeGlobal().cache();
-	public final OsmandPreference<Boolean> GPX_ROUTE_CALC = new BooleanPreference("calc_gpx_route", false).makeGlobal().cache();
 
 	public final OsmandPreference<Boolean> AVOID_TOLL_ROADS = new BooleanPreference(this, "avoid_toll_roads", false).makeProfile().cache();
 	public final OsmandPreference<Boolean> AVOID_MOTORWAY = new BooleanPreference(this, "avoid_motorway", false).makeProfile().cache();
@@ -1358,11 +1335,11 @@ public class OsmandSettings {
 
 	public final OsmandPreference<Long> LAST_UPDATES_CARD_REFRESH = new LongPreference(this, "last_updates_card_refresh", 0).makeGlobal();
 
-	public final CommonPreference<Integer> CURRENT_TRACK_COLOR = new IntPreference("current_track_color", 0).makeGlobal().cache();
+	public final CommonPreference<Integer> CURRENT_TRACK_COLOR = new IntPreference(this, "current_track_color", 0).makeGlobal().cache();
-	public final CommonPreference<String> CURRENT_TRACK_WIDTH = new StringPreference("current_track_width", "").makeGlobal().cache();
+	public final CommonPreference<String> CURRENT_TRACK_WIDTH = new StringPreference(this, "current_track_width", "").makeGlobal().cache();
-	public final CommonPreference<Boolean> CURRENT_TRACK_SHOW_ARROWS = new BooleanPreference("current_track_show_arrows", false).makeGlobal().cache();
+	public final CommonPreference<Boolean> CURRENT_TRACK_SHOW_ARROWS = new BooleanPreference(this, "current_track_show_arrows", false).makeGlobal().cache();
-	public final CommonPreference<Boolean> CURRENT_TRACK_SHOW_START_FINISH = new BooleanPreference("current_track_show_start_finish", true).makeGlobal().cache();
+	public final CommonPreference<Boolean> CURRENT_TRACK_SHOW_START_FINISH = new BooleanPreference(this, "current_track_show_start_finish", true).makeGlobal().cache();
-	public final ListStringPreference CUSTOM_TRACK_COLORS = (ListStringPreference) new ListStringPreference("custom_track_colors", null, ",").makeGlobal();
+	public final ListStringPreference CUSTOM_TRACK_COLORS = (ListStringPreference) new ListStringPreference(this, "custom_track_colors", null, ",").makeGlobal();
 
 	// this value string is synchronized with settings_pref.xml preference name
 	public final CommonPreference<Integer> SAVE_TRACK_INTERVAL = new IntPreference(this, "save_track_interval", 5000).makeProfile();
@@ -1420,6 +1397,7 @@ public class OsmandSettings {
 	public final CommonPreference<Integer> SHOW_OSM_BUGS_MIN_ZOOM = new IntPreference(this, "show_osm_bugs_min_zoom", 8).makeProfile().cache();
 
 	public final CommonPreference<String> MAP_INFO_CONTROLS = new StringPreference(this, "map_info_controls", "").makeProfile();
+
 	{
 		for (ApplicationMode mode : ApplicationMode.allPossibleValues()) {
 			MAP_INFO_CONTROLS.setModeDefaultValue(mode, "");
@@ -1474,7 +1452,7 @@ public class OsmandSettings {
 		KEEP_INFORMING.setModeDefaultValue(ApplicationMode.PEDESTRIAN, 0);
 	}
 
-	public final CommonPreference<Boolean> USE_SYSTEM_SCREEN_TIMEOUT = new BooleanPreference("use_system_screen_timeout", false).makeProfile();
+	public final CommonPreference<Boolean> USE_SYSTEM_SCREEN_TIMEOUT = new BooleanPreference(this, "use_system_screen_timeout", false).makeProfile();
 
 	public final CommonPreference<Integer> TURN_SCREEN_ON_TIME_INT = new IntPreference(this, "turn_screen_on_time_int", 0).makeProfile();
 
@@ -1492,9 +1470,9 @@ public class OsmandSettings {
 		TURN_SCREEN_ON_SENSOR.setModeDefaultValue(ApplicationMode.PEDESTRIAN, false);
 	}
 
-	public final CommonPreference<Boolean> TURN_SCREEN_ON_NAVIGATION_INSTRUCTIONS = new BooleanPreference("turn_screen_on_navigation_instructions", false).makeProfile();
+	public final CommonPreference<Boolean> TURN_SCREEN_ON_NAVIGATION_INSTRUCTIONS = new BooleanPreference(this, "turn_screen_on_navigation_instructions", false).makeProfile();
 
-	public final CommonPreference<Boolean> TURN_SCREEN_ON_POWER_BUTTON = new BooleanPreference("turn_screen_on_power_button", false).makeProfile();
+	public final CommonPreference<Boolean> TURN_SCREEN_ON_POWER_BUTTON = new BooleanPreference(this, "turn_screen_on_power_button", false).makeProfile();
 
 	// this value string is synchronized with settings_pref.xml preference name
 	// try without AUTO_FOLLOW_ROUTE_NAV (see forum discussion 'Simplify our navigation preference menu')
@@ -1567,7 +1545,8 @@ public class OsmandSettings {
 		VOICE_PROMPT_DELAY[3] = new IntPreference(this, "voice_prompt_delay_3", 0).makeGlobal().cache();    /*AudioManager.STREAM_MUSIC*/
 		VOICE_PROMPT_DELAY[5] = new IntPreference(this, "voice_prompt_delay_5", 0).makeGlobal().cache();    /*AudioManager.STREAM_NOTIFICATION*/
 	}
-	public final OsmandPreference<Boolean> DISPLAY_TTS_UTTERANCE = new BooleanPreference("display_tts_utterance", false).makeGlobal();
+
+	public final OsmandPreference<Boolean> DISPLAY_TTS_UTTERANCE = new BooleanPreference(this, "display_tts_utterance", false).makeGlobal();
 
 	// this value string is synchronized with settings_pref.xml preference name
 	public final CommonPreference<Boolean> MAP_ONLINE_DATA = new BooleanPreference(this, "map_online_data", false).makeProfile();
@@ -1636,8 +1615,8 @@ public class OsmandSettings {
 
 	public final OsmandPreference<Boolean> SHOW_COORDINATES_WIDGET = new BooleanPreference(this, "show_coordinates_widget", false).makeProfile().cache();
 
-	public final CommonPreference<NotesSortByMode> NOTES_SORT_BY_MODE = new EnumStringPreference<>("notes_sort_by_mode", NotesSortByMode.BY_DATE, NotesSortByMode.values());
+	public final CommonPreference<NotesSortByMode> NOTES_SORT_BY_MODE = new EnumStringPreference<>(this, "notes_sort_by_mode", NotesSortByMode.BY_DATE, NotesSortByMode.values());
-	public final CommonPreference<TracksSortByMode> TRACKS_SORT_BY_MODE = new EnumStringPreference<>("tracks_sort_by_mode", TracksSortByMode.BY_DATE, TracksSortByMode.values());
+	public final CommonPreference<TracksSortByMode> TRACKS_SORT_BY_MODE = new EnumStringPreference<>(this, "tracks_sort_by_mode", TracksSortByMode.BY_DATE, TracksSortByMode.values());
 
 	public final OsmandPreference<Boolean> ANIMATE_MY_LOCATION = new BooleanPreference(this, "animate_my_location", true).makeProfile().cache();
 
@@ -1791,7 +1770,7 @@ public class OsmandSettings {
 			setExternalStorageDirectoryPre19(getInternalAppPath().getAbsolutePath());
 		} else {
 			File externalStorage = getExternal1AppPath();
-			if (externalStorage != null && OsmandSettings.isWritable(externalStorage)) {
+			if (externalStorage != null && FileUtils.isWritable(externalStorage)) {
 				setExternalStorageDirectoryV19(EXTERNAL_STORAGE_TYPE_EXTERNAL_FILE,
 						getExternal1AppPath().getAbsolutePath());
 			} else {
@@ -1843,7 +1822,7 @@ public class OsmandSettings {
 		int type = settingsAPI.getInt(globalPreferences, EXTERNAL_STORAGE_DIR_TYPE_V19, -1);
 		File location = getDefaultLocationV19();
 		if (type == -1) {
-			if (isWritable(location)) {
+			if (FileUtils.isWritable(location)) {
 				if (tp != null) {
 					tp.value = settingsAPI.contains(globalPreferences, EXTERNAL_STORAGE_DIR_V19) ?
 							EXTERNAL_STORAGE_TYPE_SPECIFIED :
@@ -1881,20 +1860,6 @@ public class OsmandSettings {
 		return new File(location);
 	}
 
-
-	public static boolean isWritable(File dirToTest) {
-		boolean isWriteable = false;
-		try {
-			dirToTest.mkdirs();
-			File writeTestFile = File.createTempFile("osmand_", ".tmp", dirToTest);
-			isWriteable = writeTestFile.exists();
-			writeTestFile.delete();
-		} catch (IOException e) {
-			isWriteable = false;
-		}
-		return isWriteable;
-	}
-
 	public boolean isExternalStorageDirectoryTypeSpecifiedV19() {
 		return settingsAPI.contains(globalPreferences, EXTERNAL_STORAGE_DIR_TYPE_V19);
 	}
@@ -2008,10 +1973,6 @@ public class OsmandSettings {
 		}
 	}
 
-	private Object objectToShow;
-	private boolean editObjectToShow;
-	private String searchRequestToShow;
-
 	public void setSearchRequestToShow(String request) {
 		this.searchRequestToShow = request;
 	}
@@ -2039,7 +2000,7 @@ public class OsmandSettings {
 	}
 
 	public void setMapLocationToShow(double latitude, double longitude, int zoom, PointDescription pointDescription,
-									 boolean addToHistory, Object toShow) {
+	                                 boolean addToHistory, Object toShow) {
 		SettingsEditor edit = settingsAPI.edit(globalPreferences);
 		edit.putFloat(MAP_LAT_TO_SHOW, (float) latitude);
 		edit.putFloat(MAP_LON_TO_SHOW, (float) longitude);
@@ -2103,7 +2064,6 @@ public class OsmandSettings {
 
 	public final static String INTERMEDIATE_POINTS = "intermediate_points"; //$NON-NLS-1$
 	public final static String INTERMEDIATE_POINTS_DESCRIPTION = "intermediate_points_description"; //$NON-NLS-1$
-	private IntermediatePointsStorage intermediatePointsStorage = new IntermediatePointsStorage();
 
 	public final static String POINT_NAVIGATE_LAT_BACKUP = "point_navigate_lat_backup"; //$NON-NLS-1$
 	public final static String POINT_NAVIGATE_LON_BACKUP = "point_navigate_lon_backup"; //$NON-NLS-1$
@@ -2363,7 +2323,7 @@ public class OsmandSettings {
 	public static final String QUICK_FAB_MARGIN_X_LANDSCAPE_MARGIN = "quick_fab_margin_x_landscape_margin";
 	public static final String QUICK_FAB_MARGIN_Y_LANDSCAPE_MARGIN = "quick_fab_margin_y_landscape_margin";
 
-	public final CommonPreference<Boolean> QUICK_ACTION = new BooleanPreference("quick_action_state", false).makeProfile();
+	public final CommonPreference<Boolean> QUICK_ACTION = new BooleanPreference(this, "quick_action_state", false).makeProfile();
 
 	public final CommonPreference<String> QUICK_ACTION_LIST = new StringPreference(this, "quick_action_list", "").makeGlobal();
 
@@ -2609,11 +2569,9 @@ public class OsmandSettings {
 		RENDERER.setModeDefaultValue(ApplicationMode.SKI, RendererRegistry.WINTER_SKI_RENDER);
 	}
 
-	Map<String, CommonPreference<String>> customRendersProps = new LinkedHashMap<String, OsmandSettings.CommonPreference<String>>();
-
 	public CommonPreference<String> getCustomRenderProperty(String attrName) {
 		if (!customRendersProps.containsKey(attrName)) {
-			customRendersProps.put(attrName, new StringPreference(RENDERER_PREFERENCE_PREFIX + attrName, "").makeProfile());
+			customRendersProps.put(attrName, new StringPreference(this, RENDERER_PREFERENCE_PREFIX + attrName, "").makeProfile());
 		}
 		return customRendersProps.get(attrName);
 	}
@@ -2623,29 +2581,24 @@ public class OsmandSettings {
 		getCustomRenderProperty("defAppMode");
 	}
 
-	Map<String, CommonPreference<Boolean>> customBooleanRendersProps = new LinkedHashMap<String, OsmandSettings.CommonPreference<Boolean>>();
-
 	public CommonPreference<Boolean> getCustomRenderBooleanProperty(String attrName) {
 		if (!customBooleanRendersProps.containsKey(attrName)) {
-			customBooleanRendersProps.put(attrName, new BooleanPreference(RENDERER_PREFERENCE_PREFIX + attrName, false).makeProfile());
+			customBooleanRendersProps.put(attrName, new BooleanPreference(this, RENDERER_PREFERENCE_PREFIX + attrName, false).makeProfile());
 		}
 		return customBooleanRendersProps.get(attrName);
 	}
 
-	Map<String, CommonPreference<String>> customRoutingProps = new LinkedHashMap<>();
-
 	public CommonPreference<String> getCustomRoutingProperty(String attrName, String defValue) {
 		if (!customRoutingProps.containsKey(attrName)) {
-			customRoutingProps.put(attrName, new StringPreference(ROUTING_PREFERENCE_PREFIX + attrName, defValue).makeProfile());
+			customRoutingProps.put(attrName, new StringPreference(this, ROUTING_PREFERENCE_PREFIX + attrName, defValue).makeProfile());
 		}
 		return customRoutingProps.get(attrName);
 	}
 
-	Map<String, CommonPreference<Boolean>> customBooleanRoutingProps = new LinkedHashMap<>();
 
 	public CommonPreference<Boolean> getCustomRoutingBooleanProperty(String attrName, boolean defaulfValue) {
 		if (!customBooleanRoutingProps.containsKey(attrName)) {
-			customBooleanRoutingProps.put(attrName, new BooleanStringPreference(ROUTING_PREFERENCE_PREFIX + attrName, defaulfValue).makeProfile());
+			customBooleanRoutingProps.put(attrName, new BooleanStringPreference(this, ROUTING_PREFERENCE_PREFIX + attrName, defaulfValue).makeProfile());
 		}
 		return customBooleanRoutingProps.get(attrName);
 	}
@@ -2663,9 +2616,9 @@ public class OsmandSettings {
 	public final OsmandPreference<Boolean> MAP_ACTIVITY_ENABLED = new BooleanPreference(this, "map_activity_enabled", false).makeGlobal();
 
 	// this value string is synchronized with settings_pref.xml preference name
-	public final OsmandPreference<Boolean> SAFE_MODE = new BooleanPreference("safe_mode", false).makeGlobal();
+	public final OsmandPreference<Boolean> SAFE_MODE = new BooleanPreference(this, "safe_mode", false).makeGlobal();
-	public final OsmandPreference<Boolean> PT_SAFE_MODE = new BooleanPreference("pt_safe_mode", false).makeGlobal();
+	public final OsmandPreference<Boolean> PT_SAFE_MODE = new BooleanPreference(this, "pt_safe_mode", false).makeGlobal();
-	public final OsmandPreference<Boolean> NATIVE_RENDERING_FAILED = new BooleanPreference("native_rendering_failed_init", false).makeGlobal();
+	public final OsmandPreference<Boolean> NATIVE_RENDERING_FAILED = new BooleanPreference(this, "native_rendering_failed_init", false).makeGlobal();
 
 	public final OsmandPreference<Boolean> USE_OPENGL_RENDER = new BooleanPreference(this, "use_opengl_render",
 			false /*Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH*/
@@ -2741,7 +2694,7 @@ public class OsmandSettings {
 			new IntPreference(this, "FAVORITES_TAB", 0).makeGlobal().cache();
 
 	public final CommonPreference<Integer> OSMAND_THEME =
-			new IntPreference("osmand_theme", OSMAND_LIGHT_THEME) {
+			new IntPreference(this, "osmand_theme", OSMAND_LIGHT_THEME) {
 				@Override
 				public void readFromJson(JSONObject json, ApplicationMode appMode) throws JSONException {
 					Integer theme = parseString(json.getString(getId()));
@@ -2792,7 +2745,6 @@ public class OsmandSettings {
 			new BooleanPreference(this, "fluorescent_overlays", false).makeGlobal().cache();
 
 
-
 //	public final OsmandPreference<Integer> NUMBER_OF_FREE_DOWNLOADS_V2 = new IntPreference("free_downloads_v2", 0).makeGlobal();
 
 	public final OsmandPreference<Integer> NUMBER_OF_FREE_DOWNLOADS = new IntPreference(this, NUMBER_OF_FREE_DOWNLOADS_ID, 0).makeGlobal();
@@ -2811,7 +2763,7 @@ public class OsmandSettings {
 			new EnumStringPreference<>(this, "rate_us_state", RateUsState.INITIAL_STATE, RateUsState.values()).makeGlobal();
 
 	public final CommonPreference<String> CUSTOM_APP_MODES_KEYS =
-		new StringPreference(this, "custom_app_modes_keys", "").makeGlobal().cache();
+			new StringPreference(this, "custom_app_modes_keys", "").makeGlobal().cache();
 
 	public Set<String> getCustomAppModesKeys() {
 		String appModesKeys = CUSTOM_APP_MODES_KEYS.get();
@@ -2823,6 +2775,16 @@ public class OsmandSettings {
 		return res;
 	}
 
+	public void setQuickActions(HashMap<String, Boolean> quickActions, ApplicationMode mode) {
+		if (!QUICK_ACTION.isSetForMode(mode)) {
+			Boolean actionState = quickActions.get(mode.getStringKey());
+			if (actionState == null) {
+				actionState = QUICK_ACTION.getDefaultValue();
+			}
+			setPreference(QUICK_ACTION.getId(), actionState, mode);
+		}
+	}
+
 	public String[] getAppModeBeanPrefsIds() {
 		return new String[]{
 				ICON_COLOR.getId(),
@@ -2871,305 +2833,4 @@ public class OsmandSettings {
 				DRIVING_REGION_AUTOMATIC
 		};
 	}
-
-	public enum DayNightMode {
-		AUTO(R.string.daynight_mode_auto, R.drawable.ic_action_map_sunset),
-		DAY(R.string.daynight_mode_day, R.drawable.ic_action_map_day),
-		NIGHT(R.string.daynight_mode_night, R.drawable.ic_action_map_night),
-		SENSOR(R.string.daynight_mode_sensor, R.drawable.ic_action_map_light_sensor);
-
-		private final int key;
-		@DrawableRes
-		private final int drawableRes;
-
-		DayNightMode(@StringRes int key, @DrawableRes int drawableRes) {
-			this.key = key;
-			this.drawableRes = drawableRes;
-		}
-
-		public String toHumanString(Context ctx) {
-			return ctx.getString(key);
-		}
-
-		@DrawableRes
-		public int getIconRes() {
-			return drawableRes;
-		}
-
-		public boolean isSensor() {
-			return this == SENSOR;
-		}
-
-		public boolean isAuto() {
-			return this == AUTO;
-		}
-
-		public boolean isDay() {
-			return this == DAY;
-		}
-
-		public boolean isNight() {
-			return this == NIGHT;
-		}
-
-		public static DayNightMode[] possibleValues(Context context) {
-			SensorManager mSensorManager = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
-			Sensor mLight = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
-			boolean isLightSensorEnabled = mLight != null;
-			if (isLightSensorEnabled) {
-				return DayNightMode.values();
-			} else {
-				return new DayNightMode[]{AUTO, DAY, NIGHT};
-			}
-		}
-	}
-
-
-	public enum LayerTransparencySeekbarMode {
-		OVERLAY(R.string.overlay_transparency),
-		UNDERLAY(R.string.map_transparency),
-		OFF(R.string.shared_string_off),
-		UNDEFINED(R.string.shared_string_none);
-
-		private final int key;
-
-		LayerTransparencySeekbarMode(int key) {
-			this.key = key;
-		}
-
-		public String toHumanString(Context ctx) {
-			return ctx.getString(key);
-		}
-	}
-
-	public enum NotesSortByMode {
-		BY_TYPE,
-		BY_DATE;
-
-		public boolean isByType() {
-			return this == BY_TYPE;
-		}
-
-		public boolean isByDate() {
-			return this == BY_DATE;
-		}
-	}
-
-	public enum TracksSortByMode {
-		BY_DATE(R.string.sort_last_modified, R.drawable.ic_action_time_start),
-		BY_NAME_ASCENDING(R.string.sort_name_ascending, R.drawable.ic_action_sort_by_name_ascending),
-		BY_NAME_DESCENDING(R.string.sort_name_descending, R.drawable.ic_action_sort_by_name_descending);
-
-		private final int iconId;
-		private final int nameId;
-
-		TracksSortByMode(int nameId, int iconId) {
-			this.nameId = nameId;
-			this.iconId = iconId;
-		}
-
-		public boolean isByName() {
-			return this == BY_NAME_ASCENDING || this == BY_NAME_DESCENDING;
-		}
-
-		public boolean isByDate() {
-			return this == BY_DATE;
-		}
-
-		@StringRes
-		public int getNameId() {
-			return nameId;
-		}
-
-		@DrawableRes
-		public int getIconId() {
-			return iconId;
-		}
-	}
-
-	public enum MapMarkersMode {
-		TOOLBAR(R.string.shared_string_topbar),
-		WIDGETS(R.string.shared_string_widgets),
-		NONE(R.string.shared_string_none);
-
-		private final int key;
-
-		MapMarkersMode(int key) {
-			this.key = key;
-		}
-
-		public String toHumanString(Context ctx) {
-			return ctx.getString(key);
-		}
-
-		public boolean isToolbar() {
-			return this == TOOLBAR;
-		}
-
-		public boolean isWidgets() {
-			return this == WIDGETS;
-		}
-
-		public boolean isNone() {
-			return this == NONE;
-		}
-
-		public static MapMarkersMode[] possibleValues(Context context) {
-			return new MapMarkersMode[]{TOOLBAR, WIDGETS, NONE};
-		}
-	}
-
-	public enum SpeedConstants {
-		KILOMETERS_PER_HOUR(R.string.km_h, R.string.si_kmh, false),
-		MILES_PER_HOUR(R.string.mile_per_hour, R.string.si_mph, true),
-		METERS_PER_SECOND(R.string.m_s, R.string.si_m_s, false),
-		MINUTES_PER_MILE(R.string.min_mile, R.string.si_min_m, true),
-		MINUTES_PER_KILOMETER(R.string.min_km, R.string.si_min_km, false),
-		NAUTICALMILES_PER_HOUR(R.string.nm_h, R.string.si_nm_h, true);
-
-		public final int key;
-		public final int descr;
-		public final boolean imperial;
-
-		SpeedConstants(int key, int descr, boolean imperial) {
-			this.key = key;
-			this.descr = descr;
-			this.imperial = imperial;
-		}
-
-
-
-		public String toHumanString(Context ctx) {
-			return ctx.getString(descr);
-		}
-
-		public String toShortString(Context ctx) {
-			return ctx.getString(key);
-		}
-
-
-	}
-
-	public enum MetricsConstants {
-		KILOMETERS_AND_METERS(R.string.si_km_m, "km-m"),
-		MILES_AND_FEET(R.string.si_mi_feet, "mi-f"),
-		MILES_AND_METERS(R.string.si_mi_meters, "mi-m"),
-		MILES_AND_YARDS(R.string.si_mi_yard, "mi-y"),
-		NAUTICAL_MILES(R.string.si_nm, "nm");
-
-		private final int key;
-		private final String ttsString;
-
-		MetricsConstants(int key, String ttsString) {
-			this.key = key;
-			this.ttsString = ttsString;
-		}
-
-		public String toHumanString(Context ctx) {
-			return ctx.getString(key);
-		}
-
-		public String toTTSString() {
-			return ttsString;
-		}
-
-	}
-
-	public enum AngularConstants {
-		DEGREES(R.string.shared_string_degrees, "°"),
-		DEGREES360(R.string.shared_string_degrees, "°"),
-		MILLIRADS(R.string.shared_string_milliradians, "mil");
-
-		private final int key;
-		private final String unit;
-		
-		AngularConstants(int key, String unit) {
-			this.key = key;
-			this.unit = unit;
-		}
-
-		public String toHumanString(Context ctx) {
-			return ctx.getString(key);
-		}
-		public String getUnitSymbol() {
-			return unit;
-		}
-
-	}
-
-	public enum AutoZoomMap {
-		FARTHEST(R.string.auto_zoom_farthest, 1f, 15.5f),
-		FAR(R.string.auto_zoom_far, 1.4f, 17f),
-		CLOSE(R.string.auto_zoom_close, 2f, 19f);
-		public final float coefficient;
-		public final int name;
-		public final float maxZoom;
-
-		AutoZoomMap(int name, float coefficient, float maxZoom) {
-			this.name = name;
-			this.coefficient = coefficient;
-			this.maxZoom = maxZoom;
-
-		}
-	}
-
-	/**
-	 * Class represents specific for driving region
-	 * Signs, leftHandDriving
-	 */
-	public enum DrivingRegion {
-
-		EUROPE_ASIA(R.string.driving_region_europe_asia, MetricsConstants.KILOMETERS_AND_METERS, false),
-		US(R.string.driving_region_us, MetricsConstants.MILES_AND_FEET, false),
-		CANADA(R.string.driving_region_canada, MetricsConstants.KILOMETERS_AND_METERS, false),
-		UK_AND_OTHERS(R.string.driving_region_uk, MetricsConstants.MILES_AND_METERS, true),
-		JAPAN(R.string.driving_region_japan, MetricsConstants.KILOMETERS_AND_METERS, true),
-		AUSTRALIA(R.string.driving_region_australia, MetricsConstants.KILOMETERS_AND_METERS, true);
-
-		public final boolean leftHandDriving;
-		public final MetricsConstants defMetrics;
-		public final int name;
-
-		DrivingRegion(int name, MetricsConstants def, boolean leftHandDriving) {
-			this.name = name;
-			defMetrics = def;
-			this.leftHandDriving = leftHandDriving;
-		}
-
-		public boolean isAmericanTypeSigns() {
-			return this == OsmandSettings.DrivingRegion.AUSTRALIA ||
-					this == OsmandSettings.DrivingRegion.US ||
-					this == OsmandSettings.DrivingRegion.CANADA;
-		}
-
-		public String getDescription(Context ctx) {
-			return ctx.getString(leftHandDriving ? R.string.left_side_navigation : R.string.right_side_navigation) +
-					", " +
-					defMetrics.toHumanString(ctx).toLowerCase();
-		}
-	}
-
-	public enum RulerMode {
-		FIRST,
-		SECOND,
-		EMPTY
-	}
-
-	public enum WikiArticleShowImages {
-		ON(R.string.shared_string_on),
-		OFF(R.string.shared_string_off),
-		WIFI(R.string.shared_string_wifi_only);
-
-		public final int name;
-
-		WikiArticleShowImages(int name) {
-			this.name = name;
-		}
-	}
-
-	public enum TerrainMode {
-		HILLSHADE,
-		SLOPE
-	}
-
 }

OsmAnd/src/net/osmand/plus/settings/bottomsheets/ChangeDataStorageBottomSheet.java

@@ -11,8 +11,8 @@ import androidx.core.content.ContextCompat;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 
+import net.osmand.FileUtils;
 import net.osmand.PlatformUtil;
-import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.base.bottomsheetmenu.BaseBottomSheetItem;
@@ -63,7 +63,7 @@ public class ChangeDataStorageBottomSheet extends BasePreferenceBottomSheet {
 		CharSequence desc = null;
 		
 		File currentStorageFile = new File(currentDirectory.getDirectory());
-		if ((!OsmandSettings.isWritable(currentStorageFile))) {
+		if ((!FileUtils.isWritable(currentStorageFile))) {
 			desc = String.format(getString(R.string.android_19_location_disabled), currentStorageFile.getAbsoluteFile());
 		} else {
 			String from = currentDirectory.getKey().equals(MANUALLY_SPECIFIED) ? currentDirectory.getDirectory() : currentDirectory.getTitle();

OsmAnd/src/net/osmand/plus/settings/bottomsheets/RecalculateRouteInDeviationBottomSheet.java

@@ -14,6 +14,7 @@ import androidx.fragment.app.FragmentManager;
 import com.google.android.material.slider.Slider;
 
 import net.osmand.AndroidUtils;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.OsmAndFormatter;
 import net.osmand.plus.OsmandApplication;
@@ -76,8 +77,8 @@ public class RecalculateRouteInDeviationBottomSheet extends BooleanPreferenceBot
 		int contentPaddingSmall = app.getResources().getDimensionPixelSize(R.dimen.content_padding_small);
 		int contentPadding = app.getResources().getDimensionPixelSize(R.dimen.content_padding);
 
-		OsmandSettings.MetricsConstants mc = settings.METRIC_SYSTEM.get();
+		MetricsConstants mc = settings.METRIC_SYSTEM.get();
-		if (mc == OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS) {
+		if (mc == MetricsConstants.KILOMETERS_AND_METERS) {
 			entryValues = new Float[]{10.f, 20.0f, 30.0f, 50.0f, 100.0f, 200.0f, 500.0f, 1000.0f, 1500.0f};
 		} else {
 			entryValues = new Float[]{9.1f, 18.3f, 30.5f, 45.7f, 91.5f, 183.0f, 482.0f, 965.0f, 1609.0f};

OsmAnd/src/net/osmand/plus/settings/fragments/DataStorageFragment.java

@@ -23,6 +23,7 @@ import androidx.preference.PreferenceScreen;
 import androidx.preference.PreferenceViewHolder;
 
 import net.osmand.AndroidUtils;
+import net.osmand.FileUtils;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.ProgressImplementation;
@@ -408,7 +409,7 @@ public class DataStorageFragment extends BaseSettingsFragment implements DataSto
 		String newDirectory = newStorageDirectory.getDirectory();
 		int type = newStorageDirectory.getType();
 		File newDirectoryFile = new File(newDirectory);
-		boolean wr = OsmandSettings.isWritable(newDirectoryFile);
+		boolean wr = FileUtils.isWritable(newDirectoryFile);
 		if (wr) {
 			app.setExternalStorageDirectory(type, newDirectory);
 			reloadData();

OsmAnd/src/net/osmand/plus/settings/fragments/GeneralProfileSettingsFragment.java

@@ -22,9 +22,12 @@ import androidx.preference.PreferenceViewHolder;
 import androidx.preference.SwitchPreferenceCompat;
 
 import net.osmand.data.PointDescription;
+import net.osmand.plus.helpers.enums.AngularConstants;
+import net.osmand.plus.helpers.enums.MetricsConstants;
+import net.osmand.plus.helpers.enums.SpeedConstants;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.DrivingRegion;
+import net.osmand.plus.helpers.enums.DrivingRegion;
 import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.Version;
@@ -186,7 +189,7 @@ public class GeneralProfileSettingsFragment extends BaseSettingsFragment impleme
 	}
 
 	private void setupUnitsOfLengthPref() {
-		OsmandSettings.MetricsConstants[] metricsConstants = OsmandSettings.MetricsConstants.values();
+		MetricsConstants[] metricsConstants = MetricsConstants.values();
 		String[] entries = new String[metricsConstants.length];
 		Integer[] entryValues = new Integer[metricsConstants.length];
 
@@ -208,20 +211,20 @@ public class GeneralProfileSettingsFragment extends BaseSettingsFragment impleme
 	}
 
 	private void setupAngularUnitsPref() {
-		OsmandSettings.AngularConstants[] ac = OsmandSettings.AngularConstants.values();
+		AngularConstants[] ac = AngularConstants.values();
 		String[] entries = new String[ac.length];
 		Integer[] entryValues = new Integer[ac.length];
 
 		for (int i = 0; i < entries.length; i++) {
-			if (ac[i] == OsmandSettings.AngularConstants.DEGREES) {
+			if (ac[i] == AngularConstants.DEGREES) {
-				entries[i] = OsmandSettings.AngularConstants.DEGREES.toHumanString(app) + " 180";
+				entries[i] = AngularConstants.DEGREES.toHumanString(app) + " 180";
-				entryValues[i] = OsmandSettings.AngularConstants.DEGREES.ordinal();
+				entryValues[i] = AngularConstants.DEGREES.ordinal();
-			} else if (ac[i] == OsmandSettings.AngularConstants.DEGREES360) {
+			} else if (ac[i] == AngularConstants.DEGREES360) {
-				entries[i] = OsmandSettings.AngularConstants.DEGREES.toHumanString(app) + " 360";
+				entries[i] = AngularConstants.DEGREES.toHumanString(app) + " 360";
-				entryValues[i] = OsmandSettings.AngularConstants.DEGREES360.ordinal();
+				entryValues[i] = AngularConstants.DEGREES360.ordinal();
 			} else {
 				entries[i] = ac[i].toHumanString(app);
-				entryValues[i] = OsmandSettings.AngularConstants.MILLIRADS.ordinal();
+				entryValues[i] = AngularConstants.MILLIRADS.ordinal();
 			}
 		}
 
@@ -232,7 +235,7 @@ public class GeneralProfileSettingsFragment extends BaseSettingsFragment impleme
 	}
 
 	private void setupSpeedSystemPref() {
-		OsmandSettings.SpeedConstants[] speedConstants = OsmandSettings.SpeedConstants.values();
+		SpeedConstants[] speedConstants = SpeedConstants.values();
 		String[] entries = new String[speedConstants.length];
 		Integer[] entryValues = new Integer[speedConstants.length];
 
@@ -377,14 +380,14 @@ public class GeneralProfileSettingsFragment extends BaseSettingsFragment impleme
 				if (mapViewTrackingUtilities != null) {
 					mapViewTrackingUtilities.resetDrivingRegionUpdate();
 				}
-			} else if (newValue instanceof OsmandSettings.DrivingRegion) {
+			} else if (newValue instanceof DrivingRegion) {
 				applyPreference(settings.DRIVING_REGION_AUTOMATIC.getId(), applyToAllProfiles, false);
 				if (applyToAllProfiles) {
 					for (ApplicationMode appMode : ApplicationMode.allPossibleValues()) {
-						settings.DRIVING_REGION.setModeValue(appMode, (OsmandSettings.DrivingRegion) newValue);
+						settings.DRIVING_REGION.setModeValue(appMode, (DrivingRegion) newValue);
 					}
 				} else {
-					settings.DRIVING_REGION.setModeValue(selectedMode, (OsmandSettings.DrivingRegion) newValue);
+					settings.DRIVING_REGION.setModeValue(selectedMode, (DrivingRegion) newValue);
 				}
 			}
 			updateAllSettings();

OsmAnd/src/net/osmand/plus/settings/fragments/MapDuringNavigationFragment.java

@@ -2,8 +2,8 @@ package net.osmand.plus.settings.fragments;
 
 import androidx.preference.Preference;
 
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.helpers.enums.MetricsConstants;
-import net.osmand.plus.settings.backend.OsmandSettings.AutoZoomMap;
+import net.osmand.plus.helpers.enums.AutoZoomMap;
 import net.osmand.plus.R;
 import net.osmand.plus.settings.preferences.ListPreferenceEx;
 import net.osmand.plus.settings.preferences.SwitchPreferenceEx;
@@ -78,7 +78,7 @@ public class MapDuringNavigationFragment extends BaseSettingsFragment {
 		Float[] valuesKmh = new Float[]{0f, 5f, 7f, 10f, 15f, 20f};
 		Float[] valuesMph = new Float[]{0f, 3f, 5f, 7f, 10f, 15f};
 		String[] names;
-		if (settings.METRIC_SYSTEM.getModeValue(getSelectedAppMode()) == OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS) {
+		if (settings.METRIC_SYSTEM.getModeValue(getSelectedAppMode()) == MetricsConstants.KILOMETERS_AND_METERS) {
 			names = new String[valuesKmh.length];
 			for (int i = 0; i < names.length; i++) {
 				names[i] = valuesKmh[i].intValue() + " " + getString(R.string.km_h);
@@ -113,7 +113,7 @@ public class MapDuringNavigationFragment extends BaseSettingsFragment {
 				} else {
 					applyPreference(settings.AUTO_ZOOM_MAP.getId(), applyToAllProfiles, true);
 					applyPreference(settings.AUTO_ZOOM_MAP_SCALE.getId(),
-							applyToAllProfiles, OsmandSettings.AutoZoomMap.values()[position - 1]);
+							applyToAllProfiles, AutoZoomMap.values()[position - 1]);
 				}
 			}
 		} else {

OsmAnd/src/net/osmand/plus/settings/fragments/RouteParametersFragment.java

@@ -37,7 +37,6 @@ import net.osmand.plus.activities.SettingsBaseActivity;
 import net.osmand.plus.activities.SettingsNavigationActivity;
 import net.osmand.plus.routing.RouteProvider;
 import net.osmand.plus.routing.RoutingHelper;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
 import net.osmand.plus.settings.bottomsheets.RecalculateRouteInDeviationBottomSheet;
 import net.osmand.plus.settings.preferences.ListPreferenceEx;
 import net.osmand.plus.settings.preferences.MultiSelectBooleanPreference;

OsmAnd/src/net/osmand/plus/settings/fragments/VehicleParametersFragment.java

@@ -14,7 +14,7 @@ import net.osmand.plus.activities.SettingsBaseActivity;
 import net.osmand.plus.routing.RouteProvider.RouteService;
 import net.osmand.plus.routing.RoutingHelper;
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.settings.backend.StringPreference;
 import net.osmand.plus.settings.bottomsheets.VehicleParametersBottomSheet;
 import net.osmand.plus.settings.bottomsheets.VehicleSizeAssets;
 import net.osmand.plus.settings.preferences.ListPreferenceEx;
@@ -72,7 +72,7 @@ public class VehicleParametersFragment extends BaseSettingsFragment implements O
 				parameter.getDescription());
 		String defValue = parameter.getType() == RoutingParameterType.NUMERIC
 				? ROUTING_PARAMETER_NUMERIC_DEFAULT : ROUTING_PARAMETER_SYMBOLIC_DEFAULT;
-		OsmandSettings.StringPreference pref = (OsmandSettings.StringPreference) app.getSettings()
+		StringPreference pref = (StringPreference) app.getSettings()
 				.getCustomRoutingProperty(parameterId, defValue);
 		VehicleSizeAssets assets = VehicleSizeAssets.getAssets(parameterId, routerProfile);
 		Object[] values = parameter.getPossibleValues();

OsmAnd/src/net/osmand/plus/settings/fragments/VoiceAnnouncesFragment.java

@@ -18,6 +18,7 @@ import androidx.preference.SwitchPreferenceCompat;
 
 import net.osmand.AndroidUtils;
 import net.osmand.plus.dialogs.SpeedCamerasBottomSheet;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.R;
@@ -107,7 +108,7 @@ public class VoiceAnnouncesFragment extends BaseSettingsFragment implements OnPr
 		Float[] valuesKmh = new Float[]{-10f, -7f, -5f, 0f, 5f, 7f, 10f, 15f, 20f};
 		Float[] valuesMph = new Float[]{-7f, -5f, -3f, 0f, 3f, 5f, 7f, 10f, 15f};
 		String[] names;
-		if (settings.METRIC_SYSTEM.getModeValue(getSelectedAppMode()) == OsmandSettings.MetricsConstants.KILOMETERS_AND_METERS) {
+		if (settings.METRIC_SYSTEM.getModeValue(getSelectedAppMode()) == MetricsConstants.KILOMETERS_AND_METERS) {
 			names = new String[valuesKmh.length];
 			for (int i = 0; i < names.length; i++) {
 				names[i] = valuesKmh[i].intValue() + " " + getString(R.string.km_h);

OsmAnd/src/net/osmand/plus/settings/preferences/ListPreferenceEx.java

@@ -8,7 +8,6 @@ import androidx.preference.DialogPreference;
 import androidx.preference.PreferenceDataStore;
 
 import net.osmand.plus.settings.backend.ApplicationMode;
-import net.osmand.plus.settings.backend.OsmandSettings.PreferencesDataStore;
 import net.osmand.plus.settings.backend.OsmAndPreferencesDataStore;
 
 public class ListPreferenceEx extends DialogPreference {

OsmAnd/src/net/osmand/plus/srtmplugin/SRTMPlugin.java

@@ -21,7 +21,6 @@ import net.osmand.plus.DialogListItemAdapter;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.TerrainMode;
 import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;

OsmAnd/src/net/osmand/plus/srtmplugin/TerrainFragment.java

@@ -43,7 +43,6 @@ import net.osmand.plus.download.DownloadValidationManager;
 import net.osmand.plus.download.IndexItem;
 import net.osmand.plus.helpers.FontCache;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.TerrainMode;
 import net.osmand.plus.widgets.style.CustomTypefaceSpan;
 
 import org.apache.commons.logging.Log;
@@ -55,8 +54,8 @@ import java.util.List;
 import static net.osmand.plus.UiUtilities.CustomRadioButtonType.*;
 import static net.osmand.plus.download.DownloadActivityType.HILLSHADE_FILE;
 import static net.osmand.plus.download.DownloadActivityType.SLOPE_FILE;
-import static net.osmand.plus.settings.backend.OsmandSettings.TerrainMode.HILLSHADE;
+import static net.osmand.plus.srtmplugin.TerrainMode.HILLSHADE;
-import static net.osmand.plus.settings.backend.OsmandSettings.TerrainMode.SLOPE;
+import static net.osmand.plus.srtmplugin.TerrainMode.SLOPE;
 import static net.osmand.plus.srtmplugin.SRTMPlugin.TERRAIN_MAX_ZOOM;
 import static net.osmand.plus.srtmplugin.SRTMPlugin.TERRAIN_MIN_ZOOM;
 

OsmAnd/src/net/osmand/plus/srtmplugin/TerrainLayer.java

@@ -18,7 +18,6 @@ import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.SQLiteTileSource;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.api.SQLiteAPI.SQLiteConnection;
-import net.osmand.plus.settings.backend.OsmandSettings.TerrainMode;
 import net.osmand.plus.views.MapTileLayer;
 import net.osmand.util.Algorithms;
 
@@ -31,7 +30,7 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
-import static net.osmand.plus.settings.backend.OsmandSettings.TerrainMode.HILLSHADE;
+import static net.osmand.plus.srtmplugin.TerrainMode.HILLSHADE;
 
 public class TerrainLayer extends MapTileLayer {
 

OsmAnd/src/net/osmand/plus/srtmplugin/TerrainMode.java

@@ -0,0 +1,6 @@
+package net.osmand.plus.srtmplugin;
+
+public enum TerrainMode {
+	HILLSHADE,
+	SLOPE
+}

OsmAnd/src/net/osmand/plus/track/ShowStartFinishCard.java

@@ -10,8 +10,7 @@ import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.helpers.AndroidUiHelper;
 import net.osmand.plus.routepreparationmenu.cards.BaseCard;
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.settings.backend.OsmandPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
 
 class ShowStartFinishCard extends BaseCard {
 

OsmAnd/src/net/osmand/plus/track/TrackAppearanceFragment.java

@@ -41,7 +41,7 @@ import net.osmand.plus.dialogs.GpxAppearanceAdapter;
 import net.osmand.plus.helpers.AndroidUiHelper;
 import net.osmand.plus.routepreparationmenu.cards.BaseCard;
 import net.osmand.plus.routepreparationmenu.cards.BaseCard.CardListener;
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.track.CustomColorBottomSheet.ColorPickerListener;
 import net.osmand.plus.track.SplitTrackAsyncTask.SplitTrackListener;
 import net.osmand.render.RenderingRulesStorage;
@@ -185,7 +185,7 @@ public class TrackAppearanceFragment extends ContextMenuScrollFragment implement
 		}
 		if (color == 0) {
 			RenderingRulesStorage renderer = app.getRendererRegistry().getCurrentSelectedRenderer();
-			OsmandSettings.CommonPreference<String> prefColor = app.getSettings().getCustomRenderProperty(CURRENT_TRACK_COLOR_ATTR);
+			CommonPreference<String> prefColor = app.getSettings().getCustomRenderProperty(CURRENT_TRACK_COLOR_ATTR);
 			color = GpxAppearanceAdapter.parseTrackColor(renderer, prefColor.get());
 		}
 		trackDrawInfo.setColor(color);

OsmAnd/src/net/osmand/plus/views/layers/GPXLayer.java

@@ -50,7 +50,7 @@ import net.osmand.plus.mapcontextmenu.other.TrackChartPoints;
 import net.osmand.plus.render.OsmandRenderer;
 import net.osmand.plus.render.OsmandRenderer.RenderingContext;
 import net.osmand.plus.routepreparationmenu.MapRouteInfoMenu;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
+import net.osmand.plus.settings.backend.CommonPreference;
 import net.osmand.plus.track.SaveGpxAsyncTask;
 import net.osmand.plus.track.TrackDrawInfo;
 import net.osmand.plus.views.OsmandMapLayer;

OsmAnd/src/net/osmand/plus/views/layers/MapControlsLayer.java

@@ -47,7 +47,7 @@ import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.settings.backend.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.LayerTransparencySeekbarMode;
+import net.osmand.plus.rastermaps.LayerTransparencySeekbarMode;
 import net.osmand.plus.R;
 import net.osmand.plus.TargetPointsHelper;
 import net.osmand.plus.TargetPointsHelper.TargetPoint;
@@ -67,9 +67,6 @@ import net.osmand.plus.routing.RoutingHelper;
 import net.osmand.plus.search.QuickSearchDialogFragment.QuickSearchType;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.settings.backend.OsmAndAppCustomization;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.LayerTransparencySeekbarMode;
 import net.osmand.plus.views.OsmandMapLayer;
 import net.osmand.plus.views.OsmandMapTileView;
 import net.osmand.plus.views.corenative.NativeCoreContext;

OsmAnd/src/net/osmand/plus/views/layers/RulerControlLayer.java

@@ -29,10 +29,9 @@ import net.osmand.data.QuadPoint;
 import net.osmand.data.RotatedTileBox;
 import net.osmand.plus.OsmAndFormatter;
 import net.osmand.plus.OsmandApplication;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.settings.backend.OsmandPreference;
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.helpers.enums.AngularConstants;
-import net.osmand.plus.settings.backend.OsmandSettings.AngularConstants;
-import net.osmand.plus.settings.backend.OsmandSettings.RulerMode;
 import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.views.OsmandMapLayer;
@@ -72,7 +71,7 @@ public class RulerControlLayer extends OsmandMapLayer {
 	private QuadPoint cacheCenter;
 	private float cacheMapDensity;
 	private OsmandPreference<Float> mapDensity;
-	private OsmandSettings.MetricsConstants cacheMetricSystem;
+	private MetricsConstants cacheMetricSystem;
 	private int cacheIntZoom;
 	private LatLon cacheCenterLatLon;
 	private long cacheMultiTouchEndTime;
@@ -452,7 +451,7 @@ public class RulerControlLayer extends OsmandMapLayer {
 				updateCenter(tb, center);
 			}
 
-			OsmandSettings.MetricsConstants currentMetricSystem = app.getSettings().METRIC_SYSTEM.get();
+			MetricsConstants currentMetricSystem = app.getSettings().METRIC_SYSTEM.get();
 			boolean updateCache = tb.getZoom() != cacheIntZoom
 					|| !tb.getCenterLatLon().equals(cacheCenterLatLon) || mapDensity.get() != cacheMapDensity
 					|| cacheMetricSystem != currentMetricSystem;

OsmAnd/src/net/osmand/plus/views/layers/RulerMode.java

@@ -0,0 +1,7 @@
+package net.osmand.plus.views.layers;
+
+public enum RulerMode {
+	FIRST,
+	SECOND,
+	EMPTY
+}

OsmAnd/src/net/osmand/plus/views/mapwidgets/MapInfoWidgetsFactory.java

@@ -48,9 +48,8 @@ import net.osmand.plus.OsmAndFormatter;
 import net.osmand.plus.OsmAndLocationProvider;
 import net.osmand.plus.OsmAndLocationProvider.GPSInfo;
 import net.osmand.plus.OsmandApplication;
-import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.RulerMode;
+import net.osmand.plus.views.layers.RulerMode;
 import net.osmand.plus.R;
 import net.osmand.plus.UiUtilities;
 import net.osmand.plus.activities.MapActivity;
@@ -66,8 +65,6 @@ import net.osmand.plus.routepreparationmenu.ShowAlongTheRouteBottomSheet;
 import net.osmand.plus.routing.RouteCalculationResult;
 import net.osmand.plus.routing.RouteDirectionInfo;
 import net.osmand.plus.routing.RoutingHelper;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.RulerMode;
 import net.osmand.plus.views.OsmandMapLayer.DrawSettings;
 import net.osmand.plus.views.OsmandMapTileView;
 import net.osmand.plus.views.layers.RulerControlLayer;

OsmAnd/src/net/osmand/plus/views/mapwidgets/RouteInfoWidgetsFactory.java

@@ -25,8 +25,6 @@ import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.base.MapViewTrackingUtilities;
 import net.osmand.plus.routing.RouteCalculationResult.NextDirectionInfo;
 import net.osmand.plus.routing.RoutingHelper;
-import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
 import net.osmand.plus.views.OsmandMapLayer.DrawSettings;
 import net.osmand.plus.views.OsmandMapTileView;
 import net.osmand.plus.views.mapwidgets.widgets.AlarmWidget;

OsmAnd/src/net/osmand/plus/views/mapwidgets/widgets/AlarmWidget.java

@@ -16,6 +16,7 @@ import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.base.MapViewTrackingUtilities;
 import net.osmand.plus.helpers.AndroidUiHelper;
+import net.osmand.plus.helpers.enums.DrivingRegion;
 import net.osmand.plus.helpers.WaypointHelper;
 import net.osmand.plus.routing.AlarmInfo;
 import net.osmand.plus.routing.RoutingHelper;
@@ -40,7 +41,7 @@ public class AlarmWidget {
 	private int imgId;
 	private String cachedText;
 	private String cachedBottomText;
-	private OsmandSettings.DrivingRegion cachedRegion;
+	private DrivingRegion cachedRegion;
 
 	public AlarmWidget(final OsmandApplication app, MapActivity ma) {
 		layout = ma.findViewById(R.id.map_alarm_warning);
@@ -81,9 +82,9 @@ public class AlarmWidget {
 				int locimgId = R.drawable.warnings_limit;
 				String text = "";
 				String bottomText = "";
-				OsmandSettings.DrivingRegion region = settings.DRIVING_REGION.get();
+				DrivingRegion region = settings.DRIVING_REGION.get();
 				boolean americanType = region.isAmericanTypeSigns();
-				boolean isCanadianRegion = region == OsmandSettings.DrivingRegion.CANADA;
+				boolean isCanadianRegion = region == DrivingRegion.CANADA;
 				if (alarm.getType() == AlarmInfo.AlarmInfoType.SPEED_LIMIT) {
 					if (isCanadianRegion) {
 						locimgId = R.drawable.warnings_speed_limit_ca;

OsmAnd/src/net/osmand/plus/views/mapwidgets/widgets/RulerWidget.java

@@ -10,7 +10,7 @@ import net.osmand.plus.OsmAndFormatter;
 import net.osmand.plus.R;
 import net.osmand.plus.activities.MapActivity;
 import net.osmand.plus.helpers.AndroidUiHelper;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
+import net.osmand.plus.settings.backend.OsmandPreference;
 import net.osmand.plus.views.OsmandMapLayer.DrawSettings;
 import net.osmand.plus.views.OsmandMapTileView;
 

OsmAnd/src/net/osmand/plus/views/mapwidgets/widgetstates/BearingWidgetState.java

@@ -2,14 +2,14 @@ package net.osmand.plus.views.mapwidgets.widgetstates;
 
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
-import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.plus.settings.backend.OsmandPreference;
 
 public class BearingWidgetState extends WidgetState {
 
 	public static final int BEARING_WIDGET_STATE_RELATIVE_BEARING = R.id.bearing_widget_state_relative_bearing;
 	public static final int BEARING_WIDGET_STATE_MAGNETIC_BEARING = R.id.bearing_widget_state_magnetic_bearing;
 
-	private final OsmandSettings.OsmandPreference<Boolean> showRelativeBearing;
+	private final OsmandPreference<Boolean> showRelativeBearing;
 
 	public BearingWidgetState(OsmandApplication ctx) {
 		super(ctx);

OsmAnd/src/net/osmand/plus/views/mapwidgets/widgetstates/CompassRulerWidgetState.java

@@ -2,7 +2,7 @@ package net.osmand.plus.views.mapwidgets.widgetstates;
 
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
+import net.osmand.plus.settings.backend.OsmandPreference;
 
 public class CompassRulerWidgetState extends WidgetState {
 

OsmAnd/src/net/osmand/plus/views/mapwidgets/widgetstates/TimeWidgetState.java

@@ -2,7 +2,7 @@ package net.osmand.plus.views.mapwidgets.widgetstates;
 
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
-import net.osmand.plus.settings.backend.OsmandSettings.OsmandPreference;
+import net.osmand.plus.settings.backend.OsmandPreference;
 
 public class TimeWidgetState extends WidgetState {
 

OsmAnd/src/net/osmand/plus/voice/AbstractPrologCommandPlayer.java

@@ -12,7 +12,7 @@ import net.osmand.StateChangedListener;
 import net.osmand.plus.settings.backend.ApplicationMode;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.settings.backend.OsmandSettings;
-import net.osmand.plus.settings.backend.OsmandSettings.MetricsConstants;
+import net.osmand.plus.helpers.enums.MetricsConstants;
 import net.osmand.plus.R;
 import net.osmand.plus.api.AudioFocusHelper;
 

OsmAnd/src/net/osmand/plus/wikipedia/WikiArticleBaseDialogFragment.java

@@ -13,7 +13,6 @@ import androidx.annotation.NonNull;
 
 import net.osmand.AndroidUtils;
 import net.osmand.IndexConstants;
-import net.osmand.plus.settings.backend.OsmandSettings;
 import net.osmand.plus.R;
 import net.osmand.plus.wikivoyage.WikiBaseDialogFragment;
 
@@ -94,7 +93,7 @@ public abstract class WikiArticleBaseDialogFragment extends WikiBaseDialogFragme
 
 
 	protected void updateWebSettings() {
-		OsmandSettings.WikiArticleShowImages showImages = getSettings().WIKI_ARTICLE_SHOW_IMAGES.get();
+		WikiArticleShowImages showImages = getSettings().WIKI_ARTICLE_SHOW_IMAGES.get();
 		WebSettings webSettings = contentWebView.getSettings();
 		switch (showImages) {
 			case ON:

OsmAnd/src/net/osmand/plus/wikipedia/WikiArticleShowImages.java

@@ -0,0 +1,15 @@
+package net.osmand.plus.wikipedia;
+
+import net.osmand.plus.R;
+
+public enum WikiArticleShowImages {
+	ON(R.string.shared_string_on),
+	OFF(R.string.shared_string_off),
+	WIFI(R.string.shared_string_wifi_only);
+
+	public final int name;
+
+	WikiArticleShowImages(int name) {
+		this.name = name;
+	}
+}

OsmAnd/src/net/osmand/plus/wikipedia/WikipediaOptionsBottomSheetDialogFragment.java

@@ -10,7 +10,6 @@ import androidx.fragment.app.Fragment;
 
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.settings.backend.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.WikiArticleShowImages;
 import net.osmand.plus.R;
 import net.osmand.plus.base.MenuBottomSheetDialogFragment;
 import net.osmand.plus.base.bottomsheetmenu.BaseBottomSheetItem;

OsmAnd/src/net/osmand/plus/wikivoyage/WikivoyageShowPicturesDialogFragment.java

@@ -18,7 +18,7 @@ import androidx.fragment.app.Fragment;
 
 import net.osmand.AndroidUtils;
 import net.osmand.plus.OsmandApplication;
-import net.osmand.plus.settings.backend.OsmandSettings.WikiArticleShowImages;
+import net.osmand.plus.wikipedia.WikiArticleShowImages;
 import net.osmand.plus.R;
 import net.osmand.plus.base.BottomSheetDialogFragment;
 import net.osmand.plus.helpers.AndroidUiHelper;

OsmAnd/src/net/osmand/plus/wikivoyage/article/WikivoyageArticleDialogFragment.java

@@ -50,7 +50,7 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Map;
 
-import static net.osmand.plus.settings.backend.OsmandSettings.WikiArticleShowImages.OFF;
+import static net.osmand.plus.wikipedia.WikiArticleShowImages.OFF;
 
 
 public class WikivoyageArticleDialogFragment extends WikiArticleBaseDialogFragment {

OsmAnd/src/net/osmand/plus/wikivoyage/explore/WikivoyageOptionsBottomSheetDialogFragment.java

@@ -16,7 +16,7 @@ import net.osmand.PicassoUtils;
 import net.osmand.plus.OnDialogFragmentResultListener;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.settings.backend.CommonPreference;
-import net.osmand.plus.settings.backend.OsmandSettings.WikiArticleShowImages;
+import net.osmand.plus.wikipedia.WikiArticleShowImages;
 import net.osmand.plus.R;
 import net.osmand.plus.base.MenuBottomSheetDialogFragment;
 import net.osmand.plus.base.bottomsheetmenu.BaseBottomSheetItem;