Merge pull request #11348 from osmandapp/srtmf_dialogs

Add SRTMf dialogs

OsmAnd-java/src/main/java/net/osmand/map/WorldRegion.java

@@ -5,8 +5,11 @@ import net.osmand.data.QuadRect;
 import net.osmand.util.Algorithms;
 
 import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Set;
 
 public class WorldRegion implements Serializable {
 
@@ -212,4 +215,22 @@ public class WorldRegion implements Serializable {
 		}
 		return false;
 	}
+
+	public static List<WorldRegion> removeDuplicates(List<WorldRegion> regions) {
+		List<WorldRegion> copy = new ArrayList<>(regions);
+		Set<WorldRegion> duplicates = new HashSet<>();
+		for (int i = 0; i < copy.size() - 1; i++) {
+			WorldRegion r1 = copy.get(i);
+			for (int j = i + 1; j < copy.size(); j++) {
+				WorldRegion r2 = copy.get(j);
+				if (r1.containsRegion(r2)) {
+					duplicates.add(r2);
+				} else if (r2.containsRegion(r1)) {
+					duplicates.add(r1);
+				}
+			}
+		}
+		copy.removeAll(duplicates);
+		return copy;
+	}
 }

OsmAnd/res/layout/settings_group_title.xml

@@ -31,7 +31,7 @@
 			tools:text="Some title" />
 
 		<net.osmand.plus.widgets.TextViewEx
-			android:id="@+id/description"
+			android:id="@+id/title_description"
 			android:layout_width="wrap_content"
 			android:layout_height="wrap_content"
 			android:layout_below="@+id/title"
@@ -60,6 +60,54 @@
 
 	</RelativeLayout>
 
+	<net.osmand.plus.widgets.TextViewEx
+		android:id="@+id/primary_description"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginBottom="@dimen/dialog_content_margin"
+		android:letterSpacing="@dimen/description_letter_spacing"
+		android:orientation="vertical"
+		android:paddingStart="@dimen/content_padding"
+		android:paddingLeft="@dimen/content_padding"
+		android:paddingEnd="@dimen/content_padding"
+		android:paddingRight="@dimen/content_padding"
+		android:textColor="?android:textColorPrimary"
+		android:textSize="@dimen/default_list_text_size"
+		android:visibility="gone"
+		app:typeface="@string/font_roboto_regular"
+		tools:text="@string/srtm_download_single_help_message"
+		tools:visibility="visible" />
+
+	<net.osmand.plus.widgets.TextViewEx
+		android:id="@+id/secondary_description"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginBottom="@dimen/content_padding_small"
+		android:letterSpacing="@dimen/description_letter_spacing"
+		android:orientation="vertical"
+		android:paddingStart="@dimen/content_padding"
+		android:paddingLeft="@dimen/content_padding"
+		android:paddingEnd="@dimen/content_padding"
+		android:paddingRight="@dimen/content_padding"
+		android:textColor="?android:textColorSecondary"
+		android:textSize="@dimen/default_desc_text_size"
+		android:visibility="gone"
+		app:typeface="@string/font_roboto_regular"
+		tools:text="@string/srtm_download_list_help_message"
+		tools:visibility="visible" />
+
+	<include
+		layout="@layout/custom_radio_buttons"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginStart="@dimen/content_padding"
+		android:layout_marginLeft="@dimen/content_padding"
+		android:layout_marginEnd="@dimen/content_padding"
+		android:layout_marginRight="@dimen/content_padding"
+		android:layout_marginBottom="@dimen/content_padding_half"
+		android:visibility="gone"
+		tools:visibility="visible" />
+
 	<LinearLayout
 		android:id="@+id/select_all_button"
 		android:layout_width="match_parent"
@@ -67,12 +115,12 @@
 		android:background="?attr/selectableItemBackground"
 		android:gravity="center_vertical"
 		android:minHeight="@dimen/bottom_sheet_list_item_height"
+		android:paddingStart="@dimen/content_padding"
 		android:paddingLeft="@dimen/content_padding"
 		android:paddingTop="@dimen/content_padding_small"
+		android:paddingEnd="@dimen/content_padding"
 		android:paddingRight="@dimen/content_padding"
-		android:paddingBottom="@dimen/content_padding_small"
+		android:paddingBottom="@dimen/content_padding_small">
-		android:paddingStart="@dimen/content_padding"
-		android:paddingEnd="@dimen/content_padding">
 
 		<net.osmand.plus.widgets.TextViewEx
 			android:id="@+id/check_box_title"

OsmAnd/res/values/strings.xml

@@ -16,6 +16,10 @@
     <string name="user_points">User points</string>
     <string name="announce_when_exceeded">Announce when exceeded</string>
     <string name="exit_number">Exit number</string>
+    <string name="srtm_download_single_help_message">Please select the needed format. You will need to re-download the file to change the format.</string>
+    <string name="srtm_download_list_help_message">OsmAnd provides contour lines data in meters and feet. You will need to re-download the file to change the format.</string>
+    <string name="srtm_unit_format">Contour lines unit format</string>
+    <string name="shared_string_feet">feet</string>
     <string name="update_all_maps_added">Update all maps added to %1$s?</string>
     <string name="release_4_0_beta">
     • OsmAnd Live updates moved to \"Downloads > Updates\"\n\n

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

@@ -13,6 +13,7 @@ import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
 import net.osmand.plus.SQLiteTileSource;
 import net.osmand.plus.Version;
+import net.osmand.plus.download.SrtmDownloadItem;
 import net.osmand.plus.download.ui.AbstractLoadLocalIndexTask;
 import net.osmand.plus.voice.JSMediaCommandPlayerImpl;
 import net.osmand.plus.voice.JSTTSCommandPlayerImpl;
@@ -143,8 +144,6 @@ public class LocalIndexHelper {
 		return null;
 	}
 
-	
-
 	public List<LocalIndexInfo> getLocalIndexInfos(String downloadName) {
 		List<LocalIndexInfo> list = new ArrayList<>();
 		LocalIndexInfo info = getLocalIndexInfo(LocalIndexType.MAP_DATA, downloadName, false, false);
@@ -333,14 +332,15 @@ public class LocalIndexHelper {
 		if (mapPath.canRead()) {
 			for (File mapFile : listFilesSorted(mapPath)) {
 				if (mapFile.isFile() && mapFile.getName().endsWith(IndexConstants.BINARY_MAP_INDEX_EXT)) {
+					String fileName = mapFile.getName();
 					LocalIndexType lt = LocalIndexType.MAP_DATA;
-					if (mapFile.getName().endsWith(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)) {
+					if (SrtmDownloadItem.isSrtmFile(fileName)) {
 						lt = LocalIndexType.SRTM_DATA;
-					} else if (mapFile.getName().endsWith(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT)) {
+					} else if (fileName.endsWith(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT)) {
 						lt = LocalIndexType.WIKI_DATA;
 					}
 					LocalIndexInfo info = new LocalIndexInfo(lt, mapFile, backup, app);
-					if (loadedMaps.containsKey(mapFile.getName()) && !backup) {
+					if (loadedMaps.containsKey(fileName) && !backup) {
 						info.setLoaded(true);
 					}
 					updateDescription(info);
@@ -430,5 +430,4 @@ public class LocalIndexHelper {
 			return fileName;
 		}
 	}
-
 }

OsmAnd/src/net/osmand/plus/base/ModeSelectionBottomSheet.java

@@ -0,0 +1,80 @@
+package net.osmand.plus.base;
+
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.content.ContextCompat;
+import androidx.fragment.app.FragmentManager;
+
+import net.osmand.AndroidUtils;
+import net.osmand.plus.R;
+import net.osmand.plus.widgets.MultiStateToggleButton.RadioItem;
+
+import java.util.Collections;
+import java.util.List;
+
+public class ModeSelectionBottomSheet extends SelectionBottomSheet {
+
+	public static final String TAG = ModeSelectionBottomSheet.class.getSimpleName();
+
+	@Override
+	public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+		super.onViewCreated(view, savedInstanceState);
+		showElements(primaryDescription, toggleContainer);
+		hideElements(checkBox, checkBoxTitle, titleDescription,
+				secondaryDescription, selectedSize, selectAllButton);
+	}
+
+	@Override
+	protected void updateItemView(SelectableItem item, View view) {
+		ImageView ivIcon = view.findViewById(R.id.icon);
+		TextView tvTitle = view.findViewById(R.id.title);
+		TextView tvDescr = view.findViewById(R.id.description);
+
+		Drawable icon = uiUtilities.getIcon(item.getIconId(), activeColorRes);
+		ivIcon.setImageDrawable(icon);
+		tvTitle.setText(item.getTitle());
+		tvDescr.setText(item.getDescription());
+		tvDescr.setTextColor(ContextCompat.getColor(app, AndroidUtils.getSecondaryTextColorId(nightMode)));
+	}
+
+	@Override
+	protected int getItemLayoutId() {
+		return R.layout.bottom_sheet_item_with_descr_56dp;
+	}
+
+	public void setItem(SelectableItem item) {
+		setItems(Collections.singletonList(item));
+	}
+
+	@NonNull
+	@Override
+	public List<SelectableItem> getSelectedItems() {
+		return allItems;
+	}
+
+	@Override
+	protected boolean shouldShowDivider() {
+		return false;
+	}
+
+	public static ModeSelectionBottomSheet showInstance(@NonNull AppCompatActivity activity,
+	                                                    @NonNull SelectableItem previewItem,
+	                                                    @NonNull List<RadioItem> radioItems,
+	                                                    boolean usedOnMap) {
+		ModeSelectionBottomSheet fragment = new ModeSelectionBottomSheet();
+		fragment.setUsedOnMap(usedOnMap);
+		fragment.setModes(radioItems);
+		fragment.setItems(Collections.singletonList(previewItem));
+		FragmentManager fm = activity.getSupportFragmentManager();
+		fragment.show(fm, TAG);
+		return fragment;
+	}
+
+}

OsmAnd/src/net/osmand/plus/base/MultipleSelectionBottomSheet.java

@@ -0,0 +1,180 @@
+package net.osmand.plus.base;
+
+import android.content.res.ColorStateList;
+import android.os.Bundle;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.CheckBox;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.content.ContextCompat;
+import androidx.core.widget.CompoundButtonCompat;
+import androidx.fragment.app.FragmentManager;
+
+import net.osmand.AndroidUtils;
+import net.osmand.plus.R;
+import net.osmand.plus.helpers.AndroidUiHelper;
+import net.osmand.util.Algorithms;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static net.osmand.view.ThreeStateCheckbox.State.CHECKED;
+import static net.osmand.view.ThreeStateCheckbox.State.MISC;
+import static net.osmand.view.ThreeStateCheckbox.State.UNCHECKED;
+
+public class MultipleSelectionBottomSheet extends SelectionBottomSheet {
+
+	public static final String TAG = MultipleSelectionBottomSheet.class.getSimpleName();
+
+	private final List<SelectableItem> selectedItems = new ArrayList<>();
+	private SelectionUpdateListener selectionUpdateListener;
+
+	@Override
+	public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+		super.onViewCreated(view, savedInstanceState);
+		selectAllButton.setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				checkBox.performClick();
+				boolean checked = checkBox.getState() == CHECKED;
+				if (checked) {
+					selectedItems.addAll(allItems);
+				} else {
+					selectedItems.clear();
+				}
+				onSelectedItemsChanged();
+				updateItemsSelection(checked);
+			}
+		});
+	}
+
+	@Override
+	protected boolean shouldShowDivider() {
+		return true;
+	}
+
+	@Override
+	protected void updateItemView(final SelectableItem item, View view) {
+		boolean checked = selectedItems.contains(item);
+		ImageView imageView = view.findViewById(R.id.icon);
+		TextView title = view.findViewById(R.id.title);
+		TextView description = view.findViewById(R.id.description);
+		final CheckBox checkBox = view.findViewById(R.id.compound_button);
+		AndroidUiHelper.setVisibility(View.VISIBLE, imageView, title, description, checkBox);
+
+		checkBox.setChecked(checked);
+		CompoundButtonCompat.setButtonTintList(checkBox, AndroidUtils.createCheckedColorStateList(app, secondaryColorRes, activeColorRes));
+
+		view.setOnClickListener(new OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				boolean checked = !checkBox.isChecked();
+				checkBox.setChecked(checked);
+				if (checked) {
+					selectedItems.add(item);
+				} else {
+					selectedItems.remove(item);
+				}
+				onSelectedItemsChanged();
+			}
+		});
+		title.setText(item.getTitle());
+		description.setText(item.getDescription());
+		imageView.setImageDrawable(uiUtilities.getIcon(item.getIconId(), activeColorRes));
+	}
+
+	@Override
+	protected int getItemLayoutId() {
+		return R.layout.bottom_sheet_item_with_descr_and_checkbox_56dp;
+	}
+
+	@Override
+	protected void notifyUiInitialized() {
+		onSelectedItemsChanged();
+		super.notifyUiInitialized();
+	}
+
+	private void onSelectedItemsChanged() {
+		updateSelectAllButton();
+		updateSelectedSizeView();
+		updateApplyButtonEnable();
+		if (selectionUpdateListener != null) {
+			selectionUpdateListener.onSelectionUpdate();
+		}
+	}
+
+	private void updateSelectAllButton() {
+		String checkBoxTitle;
+		if (Algorithms.isEmpty(selectedItems)) {
+			checkBox.setState(UNCHECKED);
+			checkBoxTitle = getString(R.string.shared_string_select_all);
+		} else {
+			checkBox.setState(selectedItems.containsAll(allItems) ? CHECKED : MISC);
+			checkBoxTitle = getString(R.string.shared_string_deselect_all);
+		}
+		int checkBoxColor = checkBox.getState() == UNCHECKED ? secondaryColorRes : activeColorRes;
+		CompoundButtonCompat.setButtonTintList(checkBox, ColorStateList.valueOf(ContextCompat.getColor(app, checkBoxColor)));
+		this.checkBoxTitle.setText(checkBoxTitle);
+	}
+
+	private void updateSelectedSizeView() {
+		String selected = String.valueOf(selectedItems.size());
+		String all = String.valueOf(allItems.size());
+		selectedSize.setText(getString(R.string.ltr_or_rtl_combine_via_slash, selected, all));
+	}
+
+	private void updateApplyButtonEnable() {
+		boolean noEmptySelection = !Algorithms.isEmpty(selectedItems);
+		rightButton.setEnabled(noEmptySelection);
+	}
+
+	private void updateItemsSelection(boolean checked) {
+		for (SelectableItem item : allItems) {
+			View v = listViews.get(item);
+			CheckBox checkBox = v != null ? (CheckBox) v.findViewById(R.id.compound_button) : null;
+			if (checkBox != null) {
+				checkBox.setChecked(checked);
+			}
+		}
+	}
+
+	protected void setSelectedItems(List<SelectableItem> selected) {
+		selectedItems.clear();
+		if (!Algorithms.isEmpty(selected)) {
+			selectedItems.addAll(selected);
+		}
+	}
+
+	@NonNull
+	@Override
+	public List<SelectableItem> getSelectedItems() {
+		return selectedItems;
+	}
+
+	public void setSelectionUpdateListener(SelectionUpdateListener selectionUpdateListener) {
+		this.selectionUpdateListener = selectionUpdateListener;
+	}
+
+	public static MultipleSelectionBottomSheet showInstance(@NonNull AppCompatActivity activity,
+	                                                        @NonNull List<SelectableItem> items,
+	                                                        @Nullable List<SelectableItem> selected,
+	                                                        boolean usedOnMap) {
+		MultipleSelectionBottomSheet fragment = new MultipleSelectionBottomSheet();
+		fragment.setUsedOnMap(usedOnMap);
+		fragment.setItems(items);
+		fragment.setSelectedItems(selected);
+		FragmentManager fm = activity.getSupportFragmentManager();
+		fragment.show(fm, TAG);
+		return fragment;
+	}
+
+	public interface SelectionUpdateListener {
+		void onSelectionUpdate();
+	}
+
+}

OsmAnd/src/net/osmand/plus/base/MultipleSelectionWithModeBottomSheet.java

@@ -0,0 +1,41 @@
+package net.osmand.plus.base;
+
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.FragmentManager;
+
+import net.osmand.plus.widgets.MultiStateToggleButton.RadioItem;
+
+import java.util.List;
+
+public class MultipleSelectionWithModeBottomSheet extends MultipleSelectionBottomSheet {
+
+	public static final String TAG = MultipleSelectionWithModeBottomSheet.class.getSimpleName();
+
+	@Override
+	public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+		super.onViewCreated(view, savedInstanceState);
+		showElements(secondaryDescription, toggleContainer, checkBox,
+				checkBoxTitle, titleDescription, selectedSize, selectAllButton);
+	}
+
+	public static MultipleSelectionWithModeBottomSheet showInstance(@NonNull AppCompatActivity activity,
+	                                                                @NonNull List<SelectableItem> items,
+	                                                                @Nullable List<SelectableItem> selected,
+	                                                                @NonNull List<RadioItem> modes,
+	                                                                boolean usedOnMap) {
+		MultipleSelectionWithModeBottomSheet fragment = new MultipleSelectionWithModeBottomSheet();
+		fragment.setUsedOnMap(usedOnMap);
+		fragment.setItems(items);
+		fragment.setSelectedItems(selected);
+		fragment.setModes(modes);
+		FragmentManager fm = activity.getSupportFragmentManager();
+		fragment.show(fm, TAG);
+		return fragment;
+	}
+
+}

OsmAnd/src/net/osmand/plus/base/SelectMultipleItemsBottomSheet.java

@@ -1,301 +0,0 @@
-package net.osmand.plus.base;
-
-import android.content.res.ColorStateList;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.core.content.ContextCompat;
-import androidx.core.widget.CompoundButtonCompat;
-import androidx.fragment.app.FragmentManager;
-
-import net.osmand.AndroidUtils;
-import net.osmand.plus.OsmandApplication;
-import net.osmand.plus.R;
-import net.osmand.plus.UiUtilities;
-import net.osmand.plus.base.bottomsheetmenu.BaseBottomSheetItem;
-import net.osmand.plus.base.bottomsheetmenu.BottomSheetItemWithCompoundButton;
-import net.osmand.plus.base.bottomsheetmenu.BottomSheetItemWithCompoundButton.Builder;
-import net.osmand.plus.base.bottomsheetmenu.SimpleBottomSheetItem;
-import net.osmand.plus.base.bottomsheetmenu.simpleitems.SimpleDividerItem;
-import net.osmand.util.Algorithms;
-import net.osmand.view.ThreeStateCheckbox;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import static net.osmand.view.ThreeStateCheckbox.State.CHECKED;
-import static net.osmand.view.ThreeStateCheckbox.State.MISC;
-import static net.osmand.view.ThreeStateCheckbox.State.UNCHECKED;
-
-public class SelectMultipleItemsBottomSheet extends MenuBottomSheetDialogFragment {
-
-	private OsmandApplication app;
-	private UiUtilities uiUtilities;
-
-	private TextView title;
-	private TextView description;
-	private TextView applyButtonTitle;
-	private TextView checkBoxTitle;
-	private TextView selectedSize;
-	private ThreeStateCheckbox checkBox;
-
-	private int activeColorRes;
-	private int secondaryColorRes;
-
-	private final List<SelectableItem> allItems = new ArrayList<>();
-	private final List<SelectableItem> selectedItems = new ArrayList<>();
-	private SelectionUpdateListener selectionUpdateListener;
-	private OnApplySelectionListener onApplySelectionListener;
-
-	public static final String TAG = SelectMultipleItemsBottomSheet.class.getSimpleName();
-
-	@Nullable
-	@Override
-	public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
-		View mainView = super.onCreateView(inflater, parent, savedInstanceState);
-		onSelectedItemsChanged();
-		return mainView;
-	}
-
-	@Override
-	public void createMenuItems(Bundle savedInstanceState) {
-		app = requiredMyApplication();
-		uiUtilities = app.getUIUtilities();
-		activeColorRes = nightMode ? R.color.icon_color_active_dark : R.color.icon_color_active_light;
-		secondaryColorRes = nightMode ? R.color.icon_color_secondary_dark : R.color.icon_color_secondary_light;
-
-		items.add(createTitleItem());
-		items.add(new SimpleDividerItem(app));
-		createListItems();
-	}
-
-	private BaseBottomSheetItem createTitleItem() {
-		LayoutInflater themedInflater = UiUtilities.getInflater(requireContext(), nightMode);
-		View view = themedInflater.inflate(R.layout.settings_group_title, null);
-
-		checkBox = view.findViewById(R.id.check_box);
-		checkBoxTitle = view.findViewById(R.id.check_box_title);
-		description = view.findViewById(R.id.description);
-		selectedSize = view.findViewById(R.id.selected_size);
-		title = view.findViewById(R.id.title);
-		View selectAllButton = view.findViewById(R.id.select_all_button);
-		selectAllButton.setOnClickListener(new View.OnClickListener() {
-			@Override
-			public void onClick(View v) {
-				checkBox.performClick();
-				boolean checked = checkBox.getState() == CHECKED;
-				if (checked) {
-					selectedItems.addAll(allItems);
-				} else {
-					selectedItems.clear();
-				}
-				onSelectedItemsChanged();
-				updateItems(checked);
-			}
-		});
-		return new SimpleBottomSheetItem.Builder().setCustomView(view).create();
-	}
-
-	private void createListItems() {
-		for (final SelectableItem item : allItems) {
-			boolean checked = selectedItems.contains(item);
-			final BottomSheetItemWithCompoundButton[] uiItem = new BottomSheetItemWithCompoundButton[1];
-			final Builder builder = (BottomSheetItemWithCompoundButton.Builder) new Builder();
-			builder.setChecked(checked)
-					.setButtonTintList(AndroidUtils.createCheckedColorStateList(app, secondaryColorRes, activeColorRes))
-					.setLayoutId(R.layout.bottom_sheet_item_with_descr_and_checkbox_56dp)
-					.setOnClickListener(new View.OnClickListener() {
-						@Override
-						public void onClick(View v) {
-							boolean checked = !uiItem[0].isChecked();
-							uiItem[0].setChecked(checked);
-							SelectableItem tag = (SelectableItem) uiItem[0].getTag();
-							if (checked) {
-								selectedItems.add(tag);
-							} else {
-								selectedItems.remove(tag);
-							}
-							onSelectedItemsChanged();
-						}
-					})
-					.setTag(item);
-			setupListItem(builder, item);
-			uiItem[0] = builder.create();
-			items.add(uiItem[0]);
-		}
-	}
-
-	@Override
-	protected void setupRightButton() {
-		super.setupRightButton();
-		applyButtonTitle = rightButton.findViewById(R.id.button_text);
-	}
-
-	@Override
-	protected void onRightBottomButtonClick() {
-		if (onApplySelectionListener != null) {
-			onApplySelectionListener.onSelectionApplied(selectedItems);
-		}
-		dismiss();
-	}
-
-	private void onSelectedItemsChanged() {
-		updateSelectAllButton();
-		updateSelectedSizeView();
-		updateApplyButtonEnable();
-		if (selectionUpdateListener != null) {
-			selectionUpdateListener.onSelectionUpdate();
-		}
-	}
-
-	@Override
-	protected int getRightBottomButtonTextId() {
-		return R.string.shared_string_apply;
-	}
-
-	@Override
-	protected boolean useVerticalButtons() {
-		return true;
-	}
-
-	private void setupListItem(Builder builder, SelectableItem item) {
-		builder.setTitle(item.title);
-		builder.setDescription(item.description);
-		builder.setIcon(uiUtilities.getIcon(item.iconId, activeColorRes));
-	}
-
-	private void updateSelectAllButton() {
-		String checkBoxTitle;
-		if (Algorithms.isEmpty(selectedItems)) {
-			checkBox.setState(UNCHECKED);
-			checkBoxTitle = getString(R.string.shared_string_select_all);
-		} else {
-			checkBox.setState(selectedItems.containsAll(allItems) ? CHECKED : MISC);
-			checkBoxTitle = getString(R.string.shared_string_deselect_all);
-		}
-		int checkBoxColor = checkBox.getState() == UNCHECKED ? secondaryColorRes : activeColorRes;
-		CompoundButtonCompat.setButtonTintList(checkBox, ColorStateList.valueOf(ContextCompat.getColor(app, checkBoxColor)));
-		this.checkBoxTitle.setText(checkBoxTitle);
-	}
-
-	private void updateSelectedSizeView() {
-		String selected = String.valueOf(selectedItems.size());
-		String all = String.valueOf(allItems.size());
-		selectedSize.setText(getString(R.string.ltr_or_rtl_combine_via_slash, selected, all));
-	}
-
-	private void updateApplyButtonEnable() {
-		if (Algorithms.isEmpty(selectedItems)) {
-			rightButton.setEnabled(false);
-		} else {
-			rightButton.setEnabled(true);
-		}
-	}
-
-	private void updateItems(boolean checked) {
-		for (BaseBottomSheetItem item : items) {
-			if (item instanceof BottomSheetItemWithCompoundButton) {
-				((BottomSheetItemWithCompoundButton) item).setChecked(checked);
-			}
-		}
-	}
-
-	public void setTitle(@NonNull String title) {
-		this.title.setText(title);
-	}
-
-	public void setDescription(@NonNull String description) {
-		this.description.setText(description);
-	}
-
-	public void setConfirmButtonTitle(@NonNull String confirmButtonTitle) {
-		applyButtonTitle.setText(confirmButtonTitle);
-	}
-
-	private void setItems(List<SelectableItem> allItems) {
-		if (!Algorithms.isEmpty(allItems)) {
-			this.allItems.addAll(allItems);
-		}
-	}
-
-	private void setSelectedItems(List<SelectableItem> selected) {
-		if (!Algorithms.isEmpty(selected)) {
-			this.selectedItems.addAll(selected);
-		}
-	}
-
-	public List<SelectableItem> getSelectedItems() {
-		return selectedItems;
-	}
-
-	@Override
-	public void onPause() {
-		super.onPause();
-		if (requireActivity().isChangingConfigurations()) {
-			dismiss();
-		}
-	}
-
-	public static SelectMultipleItemsBottomSheet showInstance(@NonNull AppCompatActivity activity,
-	                                                          @NonNull List<SelectableItem> items,
-	                                                          @Nullable List<SelectableItem> selected,
-	                                                          boolean usedOnMap) {
-		SelectMultipleItemsBottomSheet fragment = new SelectMultipleItemsBottomSheet();
-		fragment.setUsedOnMap(usedOnMap);
-		fragment.setItems(items);
-		fragment.setSelectedItems(selected);
-		FragmentManager fm = activity.getSupportFragmentManager();
-		fragment.show(fm, TAG);
-		return fragment;
-	}
-
-	public void setSelectionUpdateListener(SelectionUpdateListener selectionUpdateListener) {
-		this.selectionUpdateListener = selectionUpdateListener;
-	}
-
-	public void setOnApplySelectionListener(OnApplySelectionListener onApplySelectionListener) {
-		this.onApplySelectionListener = onApplySelectionListener;
-	}
-
-	public interface SelectionUpdateListener {
-		void onSelectionUpdate();
-	}
-
-	public interface OnApplySelectionListener {
-		void onSelectionApplied(List<SelectableItem> selectedItems);
-	}
-
-	public static class SelectableItem {
-		private String title;
-		private String description;
-		private int iconId;
-		private Object object;
-
-		public void setTitle(String title) {
-			this.title = title;
-		}
-
-		public void setDescription(String description) {
-			this.description = description;
-		}
-
-		public void setIconId(int iconId) {
-			this.iconId = iconId;
-		}
-
-		public void setObject(Object object) {
-			this.object = object;
-		}
-
-		public Object getObject() {
-			return object;
-		}
-	}
-
-}

OsmAnd/src/net/osmand/plus/base/SelectionBottomSheet.java

@@ -0,0 +1,289 @@
+package net.osmand.plus.base;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+import android.widget.LinearLayout.LayoutParams;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import net.osmand.plus.OsmandApplication;
+import net.osmand.plus.R;
+import net.osmand.plus.UiUtilities;
+import net.osmand.plus.base.bottomsheetmenu.BaseBottomSheetItem;
+import net.osmand.plus.base.bottomsheetmenu.SimpleBottomSheetItem;
+import net.osmand.plus.base.bottomsheetmenu.simpleitems.SimpleDividerItem;
+import net.osmand.plus.helpers.AndroidUiHelper;
+import net.osmand.plus.widgets.MultiStateToggleButton;
+import net.osmand.plus.widgets.MultiStateToggleButton.RadioItem;
+import net.osmand.util.Algorithms;
+import net.osmand.view.ThreeStateCheckbox;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public abstract class SelectionBottomSheet extends MenuBottomSheetDialogFragment {
+
+	protected OsmandApplication app;
+	protected LayoutInflater inflater;
+	protected UiUtilities uiUtilities;
+
+	protected TextView title;
+	protected TextView titleDescription;
+	protected TextView primaryDescription;
+	protected TextView secondaryDescription;
+	protected TextView selectedSize;
+	protected LinearLayout toggleContainer;
+	protected MultiStateToggleButton radioGroup;
+	protected View selectAllButton;
+	protected TextView checkBoxTitle;
+	protected ThreeStateCheckbox checkBox;
+	protected LinearLayout listContainer;
+	protected TextView applyButtonTitle;
+
+	protected int activeColorRes;
+	protected int secondaryColorRes;
+
+	private OnUiInitializedAdapter onUiInitializedAdapter;
+	private OnApplySelectionListener onApplySelectionListener;
+
+	protected List<SelectableItem> allItems = new ArrayList<>();
+	protected Map<SelectableItem, View> listViews = new HashMap<>();
+	private List<RadioItem> modes;
+
+	@Nullable
+	@Override
+	public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
+		View mainView = super.onCreateView(inflater, parent, savedInstanceState);
+		createSelectionListIfPossible();
+		notifyUiInitialized();
+		return mainView;
+	}
+
+	@Override
+	public void createMenuItems(Bundle savedInstanceState) {
+		app = requiredMyApplication();
+		uiUtilities = app.getUIUtilities();
+		inflater = UiUtilities.getInflater(requireContext(), nightMode);
+		activeColorRes = nightMode ? R.color.icon_color_active_dark : R.color.icon_color_active_light;
+		secondaryColorRes = nightMode ? R.color.icon_color_secondary_dark : R.color.icon_color_secondary_light;
+
+		items.add(createHeaderView());
+		if (shouldShowDivider()) {
+			items.add(new SimpleDividerItem(app));
+		}
+		items.add(createSelectionView());
+	}
+
+	private BaseBottomSheetItem createHeaderView() {
+		View view = inflater.inflate(R.layout.settings_group_title, null);
+
+		title = view.findViewById(R.id.title);
+		titleDescription = view.findViewById(R.id.title_description);
+		primaryDescription = view.findViewById(R.id.primary_description);
+		secondaryDescription = view.findViewById(R.id.secondary_description);
+		selectedSize = view.findViewById(R.id.selected_size);
+		toggleContainer = view.findViewById(R.id.custom_radio_buttons);
+		radioGroup = new MultiStateToggleButton(app, toggleContainer, nightMode);
+		selectAllButton = view.findViewById(R.id.select_all_button);
+		checkBoxTitle = view.findViewById(R.id.check_box_title);
+		checkBox = view.findViewById(R.id.check_box);
+
+		if (modes != null) {
+			radioGroup.setItems(modes);
+		}
+
+		return new SimpleBottomSheetItem.Builder().setCustomView(view).create();
+	}
+
+	private BaseBottomSheetItem createSelectionView() {
+		Context themedCtx = UiUtilities.getThemedContext(requireContext(), nightMode);
+		listContainer = new LinearLayout(themedCtx);
+		listContainer.setLayoutParams(new LayoutParams(
+				ViewGroup.LayoutParams.MATCH_PARENT,
+				ViewGroup.LayoutParams.WRAP_CONTENT));
+		listContainer.setOrientation(LinearLayout.VERTICAL);
+		return new SimpleBottomSheetItem.Builder().setCustomView(listContainer).create();
+	}
+
+	public void setTitle(@NonNull String title) {
+		this.title.setText(title);
+	}
+
+	public void setTitleDescription(@NonNull String description) {
+		titleDescription.setText(description);
+	}
+
+	public void setPrimaryDescription(@NonNull String description) {
+		primaryDescription.setText(description);
+	}
+
+	public void setSecondaryDescription(@NonNull String description) {
+		secondaryDescription.setText(description);
+	}
+
+	public void setApplyButtonTitle(@NonNull String title) {
+		applyButtonTitle.setText(title);
+	}
+
+	public void setModes(@NonNull List<RadioItem> modes) {
+		this.modes = modes;
+		if (radioGroup != null) {
+			radioGroup.setItems(modes);
+		}
+	}
+
+	public void setSelectedMode(@NonNull RadioItem mode) {
+		radioGroup.setSelectedItem(mode);
+	}
+
+	public void setItems(List<SelectableItem> allItems) {
+		this.allItems.clear();
+		if (!Algorithms.isEmpty(allItems)) {
+			this.allItems.addAll(allItems);
+			createSelectionListIfPossible();
+		}
+	}
+
+	public void setOnUiInitializedAdapter(OnUiInitializedAdapter onUiInitializedAdapter) {
+		this.onUiInitializedAdapter = onUiInitializedAdapter;
+	}
+
+	public void setOnApplySelectionListener(OnApplySelectionListener onApplySelectionListener) {
+		this.onApplySelectionListener = onApplySelectionListener;
+	}
+
+	private void createSelectionListIfPossible() {
+		if (listContainer != null && allItems != null) {
+			recreateList();
+		}
+	}
+
+	private void recreateList() {
+		listViews.clear();
+		listContainer.removeAllViews();
+		for (SelectableItem item : allItems) {
+			setupItemView(item, inflater.inflate(getItemLayoutId(), null));
+		}
+	}
+
+	private void setupItemView(SelectableItem item, View view) {
+		updateItemView(item, view);
+		listViews.put(item, view);
+		listContainer.addView(view);
+	}
+
+	public List<SelectableItem> getAllItems() {
+		return allItems;
+	}
+
+	@NonNull
+	public abstract List<SelectableItem> getSelectedItems();
+
+	protected abstract void updateItemView(SelectableItem item, View view);
+
+	protected abstract int getItemLayoutId();
+
+	protected abstract boolean shouldShowDivider();
+
+	protected void notifyUiInitialized() {
+		if (onUiInitializedAdapter != null) {
+			onUiInitializedAdapter.onUiInitialized();
+		}
+	}
+
+	protected void showElements(View... views) {
+		AndroidUiHelper.setVisibility(View.VISIBLE, views);
+	}
+
+	protected void hideElements(View... views) {
+		AndroidUiHelper.setVisibility(View.GONE, views);
+	}
+
+	@Override
+	protected void setupRightButton() {
+		super.setupRightButton();
+		applyButtonTitle = rightButton.findViewById(R.id.button_text);
+	}
+
+	@Override
+	protected void onRightBottomButtonClick() {
+		if (onApplySelectionListener != null) {
+			onApplySelectionListener.onSelectionApplied(getSelectedItems());
+		}
+		dismiss();
+	}
+
+	@Override
+	protected int getRightBottomButtonTextId() {
+		return R.string.shared_string_apply;
+	}
+
+	@Override
+	protected boolean useVerticalButtons() {
+		return true;
+	}
+
+	@Override
+	public void onPause() {
+		super.onPause();
+		if (requireActivity().isChangingConfigurations()) {
+			dismiss();
+		}
+	}
+
+	public interface OnUiInitializedAdapter {
+		void onUiInitialized();
+	}
+
+	public interface OnApplySelectionListener {
+		void onSelectionApplied(List<SelectableItem> selectedItems);
+	}
+
+	public static class SelectableItem {
+		private String title;
+		private String description;
+		private int iconId;
+		private Object object;
+
+		public String getTitle() {
+			return title;
+		}
+
+		public String getDescription() {
+			return description;
+		}
+
+		public int getIconId() {
+			return iconId;
+		}
+
+		public Object getObject() {
+			return object;
+		}
+
+		public void setTitle(String title) {
+			this.title = title;
+		}
+
+		public void setDescription(String description) {
+			this.description = description;
+		}
+
+		public void setIconId(int iconId) {
+			this.iconId = iconId;
+		}
+
+		public void setObject(Object object) {
+			this.object = object;
+		}
+	}
+
+}

OsmAnd/src/net/osmand/plus/base/bottomsheetmenu/BaseBottomSheetItem.java

@@ -32,6 +32,10 @@ public class BaseBottomSheetItem {
 		return tag;
 	}
 
+	public void setTag(Object tag) {
+		this.tag = tag;
+	}
+
 	public BaseBottomSheetItem(View view,
 							   @LayoutRes int layoutId,
 							   Object tag,

OsmAnd/src/net/osmand/plus/download/DownloadActivityType.java

@@ -10,6 +10,7 @@ import net.osmand.map.OsmandRegions;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
 import net.osmand.plus.Version;
+import net.osmand.plus.activities.LocalIndexInfo;
 import net.osmand.plus.helpers.FileNameTranslationHelper;
 import net.osmand.util.Algorithms;
 
@@ -27,6 +28,7 @@ import java.util.Locale;
 import java.util.Map;
 
 import static net.osmand.IndexConstants.BINARY_MAP_INDEX_EXT;
+import static net.osmand.plus.activities.LocalIndexHelper.LocalIndexType.SRTM_DATA;
 
 public class DownloadActivityType {
 	private static SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd.MM.yyyy", Locale.US);
@@ -83,7 +85,7 @@ public class DownloadActivityType {
 		iconResource = R.drawable.ic_map;
 	}
 
-	public int getStringResource(){
+	public int getStringResource() {
 		return stringResource;
 	}
 
@@ -101,7 +103,7 @@ public class DownloadActivityType {
 
 	public static boolean isCountedInDownloads(IndexItem es) {
 		DownloadActivityType tp = es.getType();
-		if(tp == NORMAL_FILE || tp == ROADS_FILE){
+		if (tp == NORMAL_FILE || tp == ROADS_FILE) {
 			if (!es.extra) {
 				return true;
 			}
@@ -126,11 +128,11 @@ public class DownloadActivityType {
 	}
 
 	public boolean isAccepted(String fileName) {
-		if(NORMAL_FILE == this) {
+		if (NORMAL_FILE == this) {
 			return fileName.endsWith(addVersionToExt(IndexConstants.BINARY_MAP_INDEX_EXT_ZIP, IndexConstants.BINARY_MAP_VERSION))
 					|| fileName.endsWith(IndexConstants.EXTRA_ZIP_EXT)
 					|| fileName.endsWith(IndexConstants.SQLITE_EXT);
-		} else if(ROADS_FILE == this) {
+		} else if (ROADS_FILE == this) {
 			return fileName.endsWith(addVersionToExt(IndexConstants.BINARY_ROAD_MAP_INDEX_EXT_ZIP, IndexConstants.BINARY_MAP_VERSION));
 		} else if (VOICE_FILE == this) {
 			return fileName.endsWith(addVersionToExt(IndexConstants.VOICE_INDEX_EXT_ZIP, IndexConstants.VOICE_VERSION));
@@ -145,8 +147,9 @@ public class DownloadActivityType {
 			return fileName.endsWith(addVersionToExt(IndexConstants.BINARY_TRAVEL_GUIDE_MAP_INDEX_EXT_ZIP,
 					IndexConstants.BINARY_MAP_VERSION));
 		} else if (SRTM_COUNTRY_FILE == this) {
-			return fileName.endsWith(addVersionToExt(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT_ZIP,
+			boolean srtm = fileName.endsWith(addVersionToExt(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT_ZIP, IndexConstants.BINARY_MAP_VERSION));
-					IndexConstants.BINARY_MAP_VERSION));
+			boolean srtmf = fileName.endsWith(addVersionToExt(IndexConstants.BINARY_SRTM_FEET_MAP_INDEX_EXT_ZIP, IndexConstants.BINARY_MAP_VERSION));
+			return srtm || srtmf;
 		} else if (HILLSHADE_FILE == this) {
 			return fileName.endsWith(IndexConstants.SQLITE_EXT);
 		} else if (SLOPE_FILE == this) {
@@ -217,7 +220,7 @@ public class DownloadActivityType {
 				return IndexConstants.EXTRA_EXT;
 			} else if (indexItem.fileName.endsWith(IndexConstants.SQLITE_EXT)) {
 				return IndexConstants.SQLITE_EXT;
-			} else if (indexItem.fileName.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)){
+			} else if (indexItem.fileName.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)) {
 				return "";
 			}
 		} else if (ROADS_FILE == this) {
@@ -227,7 +230,7 @@ public class DownloadActivityType {
 		} else if (FONT_FILE == this) {
 			return IndexConstants.FONT_INDEX_EXT;
 		} else if (SRTM_COUNTRY_FILE == this) {
-			return IndexConstants.BINARY_SRTM_MAP_INDEX_EXT;
+			return SrtmDownloadItem.getExtension(indexItem);
 		} else if (WIKIPEDIA_FILE == this) {
 			return IndexConstants.BINARY_WIKI_MAP_INDEX_EXT;
 		} else if (WIKIVOYAGE_FILE == this) {
@@ -251,7 +254,7 @@ public class DownloadActivityType {
 	}
 
 	public String getUrlSuffix(OsmandApplication ctx) {
-		if (this== ROADS_FILE) {
+		if (this == ROADS_FILE) {
 			return "&road=yes";
 		} else if (this == LIVE_UPDATES_FILE) {
 			return "&aosmc=yes";
@@ -280,7 +283,7 @@ public class DownloadActivityType {
 	public String getBaseUrl(OsmandApplication ctx, String fileName) {
 		String url = "https://" + IndexConstants.INDEX_DOWNLOAD_DOMAIN + "/download?event=2&"
 				+ Version.getVersionAsURLParam(ctx) + "&file=" + encode(fileName);
-		if(this == LIVE_UPDATES_FILE && fileName.length() > 16) {
+		if (this == LIVE_UPDATES_FILE && fileName.length() > 16) {
 			// DATE_AND_EXT_STR_LEN = "_18_06_02.obf.gz".length()
 			String region = fileName.substring(0, fileName.length() - 16).toLowerCase();
 			url += "&region=" + encode(region);
@@ -426,7 +429,7 @@ public class DownloadActivityType {
 			}
 			String baseNameWithoutVersion = fileName.substring(0, l);
 			if (this == SRTM_COUNTRY_FILE) {
-				return baseNameWithoutVersion + IndexConstants.BINARY_SRTM_MAP_INDEX_EXT;
+				return baseNameWithoutVersion + SrtmDownloadItem.getExtension(item);
 			}
 			if (this == WIKIPEDIA_FILE) {
 				return baseNameWithoutVersion + IndexConstants.BINARY_WIKI_MAP_INDEX_EXT;
@@ -490,7 +493,7 @@ public class DownloadActivityType {
 			return fileName.substring(0, l);
 		}
 		if (this == LIVE_UPDATES_FILE) {
-			if(fileName.indexOf('.') > 0){
+			if (fileName.indexOf('.') > 0) {
 				return fileName.substring(0, fileName.indexOf('.'));
 			}
 			return fileName;
@@ -498,7 +501,7 @@ public class DownloadActivityType {
 		int ls = fileName.lastIndexOf('_');
 		if (ls >= 0) {
 			return fileName.substring(0, ls);
-		} else if(fileName.indexOf('.') > 0){
+		} else if (fileName.indexOf('.') > 0) {
 			return fileName.substring(0, fileName.indexOf('.'));
 		}
 		return fileName;

OsmAnd/src/net/osmand/plus/download/DownloadIndexesThread.java

@@ -240,9 +240,12 @@ public class DownloadIndexesThread {
 	}
 
 	public void cancelDownload(DownloadItem item) {
-		if (item instanceof MultipleIndexItem) {
+		if (item instanceof MultipleDownloadItem) {
-			MultipleIndexItem multipleIndexItem = (MultipleIndexItem) item;
+			MultipleDownloadItem multipleDownloadItem = (MultipleDownloadItem) item;
-			cancelDownload(multipleIndexItem.getAllIndexes());
+			cancelDownload(multipleDownloadItem.getAllIndexes());
+		} else if (item instanceof SrtmDownloadItem) {
+			IndexItem indexItem = ((SrtmDownloadItem) item).getIndexItem();
+			cancelDownload(indexItem);
 		} else if (item instanceof IndexItem) {
 			IndexItem indexItem = (IndexItem) item;
 			cancelDownload(indexItem);

OsmAnd/src/net/osmand/plus/download/DownloadItem.java

@@ -3,12 +3,14 @@ package net.osmand.plus.download;
 import android.content.Context;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 import net.osmand.map.OsmandRegions;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
 
 import java.io.File;
+import java.text.DateFormat;
 import java.util.List;
 import java.util.Locale;
 
@@ -55,6 +57,12 @@ public abstract class DownloadItem {
 		return type.getBasename(this);
 	}
 
+	@NonNull
+	public abstract List<File> getDownloadedFiles(@NonNull OsmandApplication app);
+
+	@Nullable
+	public abstract String getAdditionalDescription(Context ctx);
+
 	protected abstract double getSizeToDownloadInMb();
 
 	public abstract double getArchiveSizeMB();
@@ -69,8 +77,7 @@ public abstract class DownloadItem {
 
 	public abstract String getFileName();
 
-	@NonNull
+	public abstract String getDate(@NonNull DateFormat dateFormat, boolean remote);
-	public abstract List<File> getDownloadedFiles(@NonNull OsmandApplication app);
 
 	@NonNull
 	public static String getFormattedMb(@NonNull Context ctx, double sizeInMb) {

OsmAnd/src/net/osmand/plus/download/DownloadOsmandIndexesHelper.java

@@ -1,5 +1,26 @@
 package net.osmand.plus.download;
 
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.res.AssetManager;
+import android.provider.Settings.Secure;
+
+import net.osmand.AndroidUtils;
+import net.osmand.IndexConstants;
+import net.osmand.PlatformUtil;
+import net.osmand.osm.io.NetworkUtils;
+import net.osmand.plus.OsmandApplication;
+import net.osmand.plus.settings.backend.OsmandSettings;
+import net.osmand.util.Algorithms;
+
+import org.apache.commons.logging.Log;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -11,26 +32,6 @@ import java.util.Comparator;
 import java.util.List;
 import java.util.zip.GZIPInputStream;
 
-import net.osmand.AndroidUtils;
-import net.osmand.IndexConstants;
-import net.osmand.PlatformUtil;
-import net.osmand.osm.io.NetworkUtils;
-import net.osmand.plus.OsmandApplication;
-import net.osmand.plus.settings.backend.OsmandSettings;
-
-import org.apache.commons.logging.Log;
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
-import org.xmlpull.v1.XmlPullParserFactory;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.content.res.AssetManager;
-import android.provider.Settings.Secure;
-
 public class DownloadOsmandIndexesHelper {
 	private final static Log log = PlatformUtil.getLog(DownloadOsmandIndexesHelper.class);
 
@@ -42,18 +43,18 @@ public class DownloadOsmandIndexesHelper {
 		ArrayList<IndexItem> indexFiles = new ArrayList<IndexItem>();
 		private String mapversion;
 
-		private Comparator<IndexItem> comparator = new Comparator<IndexItem>(){
+		private Comparator<IndexItem> comparator = new Comparator<IndexItem>() {
 			@Override
 			public int compare(IndexItem o1, IndexItem o2) {
 				String object1 = o1.getFileName();
 				String object2 = o2.getFileName();
-				if(object1.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)){
+				if (object1.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)) {
-					if(object2.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)){
+					if (object2.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)) {
 						return object1.compareTo(object2);
 					} else {
 						return -1;
 					}
-				} else if(object2.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)){
+				} else if (object2.endsWith(IndexConstants.ANYVOICE_INDEX_EXT_ZIP)) {
 					return 1;
 				}
 				return object1.compareTo(object2);
@@ -75,12 +76,12 @@ public class DownloadOsmandIndexesHelper {
 		@SuppressLint("DefaultLocale")
 		public void add(IndexItem indexItem) {
 			indexFiles.add(indexItem);
-			if(indexItem.getFileName().toLowerCase().startsWith("world_basemap")) {
+			if (indexItem.getFileName().toLowerCase().startsWith("world_basemap")) {
 				basemap = indexItem;
 			}
 		}
 
-		public void sort(){
+		public void sort() {
 			Collections.sort(indexFiles, comparator);
 		}
 
@@ -179,14 +180,14 @@ public class DownloadOsmandIndexesHelper {
 	}
 
 
-	private static IndexFileList downloadIndexesListFromInternet(OsmandApplication ctx){
+	private static IndexFileList downloadIndexesListFromInternet(OsmandApplication ctx) {
 		try {
 			IndexFileList result = new IndexFileList();
 			log.debug("Start loading list of index files"); //$NON-NLS-1$
 			try {
 				String strUrl = ctx.getAppCustomization().getIndexesUrl();
 				long nd = ctx.getAppInitializer().getFirstInstalledDays();
-				if(nd > 0) {
+				if (nd > 0) {
 					strUrl += "&nd=" + nd;
 				}
 				strUrl += "&ns=" + ctx.getAppInitializer().getNumberOfStarts();
@@ -202,12 +203,12 @@ public class DownloadOsmandIndexesHelper {
 				GZIPInputStream gzin = new GZIPInputStream(in);
 				parser.setInput(gzin, "UTF-8"); //$NON-NLS-1$
 				int next;
-				while((next = parser.next()) != XmlPullParser.END_DOCUMENT) {
+				while ((next = parser.next()) != XmlPullParser.END_DOCUMENT) {
 					if (next == XmlPullParser.START_TAG) {
 						DownloadActivityType tp = DownloadActivityType.getIndexType(parser.getAttributeValue(null, "type"));
 						if (tp != null) {
 							IndexItem it = tp.parseIndexItem(ctx, parser);
-							if(it != null) {
+							if (it != null) {
 								result.add(it);
 							}
 						} else if ("osmand_regions".equals(parser.getName())) {
@@ -261,7 +262,7 @@ public class DownloadOsmandIndexesHelper {
 			return new DownloadEntry(assetName, destFile, dateModified);
 		}
 
-		public String getDestFile(){
+		public String getDestFile() {
 			return destFile;
 		}
 	}

OsmAnd/src/net/osmand/plus/download/DownloadResources.java

@@ -25,12 +25,11 @@ import java.io.InputStream;
 import java.text.DateFormat;
 import java.text.ParseException;
 import java.util.ArrayList;
-import java.util.HashSet;
+import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 
 import static net.osmand.plus.download.DownloadResourceGroup.DownloadResourceGroupType.REGION_MAPS;
 
@@ -117,6 +116,16 @@ public class DownloadResources extends DownloadResourceGroup {
 		return res;
 	}
 
+	@NonNull
+	public List<DownloadItem> getDownloadItems(WorldRegion region) {
+		DownloadResourceGroup group = getRegionMapsGroup(region);
+		if (group != null) {
+			return group.getIndividualDownloadItems();
+		}
+		return Collections.emptyList();
+	}
+
+	@NonNull
 	public List<IndexItem> getIndexItems(WorldRegion region) {
 		if (groupByRegion != null) {
 			List<IndexItem> res = groupByRegion.get(region);
@@ -124,7 +133,7 @@ public class DownloadResources extends DownloadResourceGroup {
 				return res;
 			}
 		}
-		return new LinkedList<>();
+		return Collections.emptyList();
 	}
 
 	public void updateLoadedFiles() {
@@ -471,30 +480,60 @@ public class DownloadResources extends DownloadResourceGroup {
 		addGroup(otherGroup);
 
 		createHillshadeSRTMGroups();
-		collectMultipleIndexesItems();
+		replaceIndividualSrtmWithGroups(region);
+		createMultipleDownloadItems(region);
 		trimEmptyGroups();
 		updateLoadedFiles();
 		return true;
 	}
 
-	private void collectMultipleIndexesItems() {
+	private void replaceIndividualSrtmWithGroups(@NonNull WorldRegion region) {
-		collectMultipleIndexesItems(region);
+		DownloadResourceGroup group = getRegionMapsGroup(region);
+		if (group != null) {
+			boolean useMetersByDefault = SrtmDownloadItem.shouldUseMetersByDefault(app);
+			boolean listModified = false;
+			DownloadActivityType srtmType = DownloadActivityType.SRTM_COUNTRY_FILE;
+			List<DownloadItem> individualItems = group.getIndividualDownloadItems();
+			if (isListContainsType(individualItems, srtmType)) {
+				List<IndexItem> srtmIndexes = new ArrayList<>();
+				for (DownloadItem item : individualItems) {
+					if (item.getType() == srtmType && item instanceof IndexItem) {
+						srtmIndexes.add((IndexItem) item);
+					}
+				}
+				if (srtmIndexes.size() > 1) {
+					individualItems.removeAll(srtmIndexes);
+					group.addItem(new SrtmDownloadItem(srtmIndexes, useMetersByDefault));
+				}
+				listModified = true;
+			}
+			if (listModified) {
+				sortDownloadItems(individualItems);
+			}
 		}
 
-	private void collectMultipleIndexesItems(@NonNull WorldRegion region) {
+		List<WorldRegion> subRegions = region.getSubregions();
+		if (!Algorithms.isEmpty(subRegions)) {
+			for (WorldRegion subRegion : subRegions) {
+				replaceIndividualSrtmWithGroups(subRegion);
+			}
+		}
+	}
+
+	private void createMultipleDownloadItems(@NonNull WorldRegion region) {
 		List<WorldRegion> subRegions = region.getSubregions();
 		if (Algorithms.isEmpty(subRegions)) return;
 
 		DownloadResourceGroup group = getRegionMapsGroup(region);
 		if (group != null) {
 			boolean listModified = false;
-			List<IndexItem> indexesList = group.getIndividualResources();
+			List<DownloadItem> downloadItems = group.getIndividualDownloadItems();
-			List<WorldRegion> regionsToCollect = removeDuplicateRegions(subRegions);
+			List<WorldRegion> uniqueSubRegions = WorldRegion.removeDuplicates(subRegions);
 			for (DownloadActivityType type : DownloadActivityType.values()) {
-				if (!doesListContainIndexWithType(indexesList, type)) {
+				if (!isListContainsType(downloadItems, type)) {
-					List<IndexItem> indexesFromSubRegions = collectIndexesOfType(regionsToCollect, type);
+					List<DownloadItem> itemsFromSubRegions = collectItemsOfType(uniqueSubRegions, type);
-					if (indexesFromSubRegions != null) {
+					if (itemsFromSubRegions != null) {
-						group.addItem(new MultipleIndexItem(region, indexesFromSubRegions, type));
+						group.addItem(new MultipleDownloadItem(region, itemsFromSubRegions, type));
 						listModified = true;
 					}
 				}
@@ -504,7 +543,7 @@ public class DownloadResources extends DownloadResourceGroup {
 			}
 		}
 		for (WorldRegion subRegion : subRegions) {
-			collectMultipleIndexesItems(subRegion);
+			createMultipleDownloadItems(subRegion);
 		}
 	}
 
@@ -517,43 +556,21 @@ public class DownloadResources extends DownloadResourceGroup {
 	}
 
 	@Nullable
-	private List<IndexItem> collectIndexesOfType(@NonNull List<WorldRegion> regions,
+	private List<DownloadItem> collectItemsOfType(@NonNull List<WorldRegion> regions,
 	                                              @NonNull DownloadActivityType type) {
-		List<IndexItem> collectedIndexes = new ArrayList<>();
+		List<DownloadItem> collectedItems = new ArrayList<>();
 		for (WorldRegion region : regions) {
-			List<IndexItem> regionIndexes = getIndexItems(region);
 			boolean found = false;
-			if (regionIndexes != null) {
+			for (DownloadItem item : getDownloadItems(region)) {
-				for (IndexItem index : regionIndexes) {
+				if (item.getType() == type) {
-					if (index.getType() == type) {
 					found = true;
-						collectedIndexes.add(index);
+					collectedItems.add(item);
 					break;
 				}
 			}
-			}
 			if (!found) return null;
 		}
-		return collectedIndexes;
+		return collectedItems;
-	}
-
-	private List<WorldRegion> removeDuplicateRegions(List<WorldRegion> regions) {
-		Set<WorldRegion> duplicates = new HashSet<>();
-		for (int i = 0; i < regions.size() - 1; i++) {
-			WorldRegion r1 = regions.get(i);
-			for (int j = i + 1; j < regions.size(); j++) {
-				WorldRegion r2 = regions.get(j);
-				if (r1.containsRegion(r2)) {
-					duplicates.add(r2);
-				} else if (r2.containsRegion(r1)) {
-					duplicates.add(r1);
-				}
-			}
-		}
-		for (WorldRegion region : duplicates) {
-			regions.remove(region);
-		}
-		return regions;
 	}
 
 	private void buildRegionsGroups(WorldRegion region, DownloadResourceGroup group) {
@@ -680,11 +697,11 @@ public class DownloadResources extends DownloadResourceGroup {
 				&& isIndexItemDownloaded(downloadThread, type, downloadRegion.getSuperregion(), res);
 	}
 
-	private boolean doesListContainIndexWithType(List<IndexItem> indexItems,
+	private boolean isListContainsType(List<DownloadItem> items,
 	                                   DownloadActivityType type) {
-		if (indexItems != null) {
+		if (items != null) {
-			for (IndexItem indexItem : indexItems) {
+			for (DownloadItem item : items) {
-				if (indexItem.getType() == type) {
+				if (item.getType() == type) {
 					return true;
 				}
 			}

OsmAnd/src/net/osmand/plus/download/IndexItem.java

@@ -1,6 +1,9 @@
 package net.osmand.plus.download;
 
+import android.content.Context;
+
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 import net.osmand.IndexConstants;
 import net.osmand.PlatformUtil;
@@ -19,6 +22,7 @@ import java.util.Date;
 import java.util.List;
 
 public class IndexItem extends DownloadItem implements Comparable<IndexItem> {
+
 	private static final Log log = PlatformUtil.getLog(IndexItem.class);
 	
 	String description;
@@ -226,6 +230,12 @@ public class IndexItem extends DownloadItem implements Comparable<IndexItem> {
 		return format.format(new Date(timestamp));
 	}
 
+	@Nullable
+	@Override
+	public String getAdditionalDescription(Context ctx) {
+		return null;
+	}
+	
 	public static class DownloadEntry {
 		public long dateModified;
 		public double sizeMB;
@@ -254,5 +264,4 @@ public class IndexItem extends DownloadItem implements Comparable<IndexItem> {
 		}
 	}
 
-
 }

OsmAnd/src/net/osmand/plus/download/MultipleDownloadItem.java

@@ -1,32 +1,47 @@
 package net.osmand.plus.download;
 
+import android.content.Context;
+
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 import net.osmand.map.WorldRegion;
 import net.osmand.plus.OsmandApplication;
 
 import java.io.File;
+import java.text.DateFormat;
 import java.util.ArrayList;
 import java.util.List;
 
-public class MultipleIndexItem extends DownloadItem {
+public class MultipleDownloadItem extends DownloadItem {
 
-	private final List<IndexItem> items;
+	private final List<DownloadItem> items;
 
-	public MultipleIndexItem(@NonNull WorldRegion region,
+	public MultipleDownloadItem(@NonNull WorldRegion region,
-	                         @NonNull List<IndexItem> items,
+	                            @NonNull List<DownloadItem> items,
 	                            @NonNull DownloadActivityType type) {
 		super(type);
 		this.items = items;
 	}
 
 	public List<IndexItem> getAllIndexes() {
+		List<IndexItem> indexes = new ArrayList<>();
+		for (DownloadItem item : items) {
+			IndexItem index = getIndexItem(item);
+			if (index != null) {
+				indexes.add(index);
+			}
+		}
+		return indexes;
+	}
+
+	public List<DownloadItem> getAllItems() {
 		return items;
 	}
 
 	@Override
 	public boolean isOutdated() {
-		for (IndexItem item : items) {
+		for (DownloadItem item : items) {
 			if (item.isOutdated()) {
 				return true;
 			}
@@ -36,7 +51,7 @@ public class MultipleIndexItem extends DownloadItem {
 
 	@Override
 	public boolean isDownloaded() {
-		for (IndexItem item : items) {
+		for (DownloadItem item : items) {
 			if (item.isDownloaded()) {
 				return true;
 			}
@@ -46,8 +61,8 @@ public class MultipleIndexItem extends DownloadItem {
 
 	@Override
 	public boolean isDownloading(@NonNull DownloadIndexesThread thread) {
-		for (IndexItem item : items) {
+		for (DownloadItem item : items) {
-			if (thread.isDownloading(item)) {
+			if (item.isDownloading(thread)) {
 				return true;
 			}
 		}
@@ -78,31 +93,31 @@ public class MultipleIndexItem extends DownloadItem {
 	@Override
 	public List<File> getDownloadedFiles(@NonNull OsmandApplication app) {
 		List<File> result = new ArrayList<>();
-		for (IndexItem item : items) {
+		for (DownloadItem item : items) {
 			result.addAll(item.getDownloadedFiles(app));
 		}
 		return result;
 	}
 
-	public List<IndexItem> getIndexesToDownload() {
+	public List<DownloadItem> getItemsToDownload() {
-		List<IndexItem> indexesToDownload = new ArrayList<>();
+		List<DownloadItem> itemsToDownload = new ArrayList<>();
-		for (IndexItem item : items) {
+		for (DownloadItem item : getAllItems()) {
 			if (item.hasActualDataToDownload()) {
-				indexesToDownload.add(item);
+				itemsToDownload.add(item);
 			}
 		}
-		return indexesToDownload;
+		return itemsToDownload;
 	}
 
 	@Override
 	public boolean hasActualDataToDownload() {
-		return getIndexesToDownload().size() > 0;
+		return getItemsToDownload().size() > 0;
 	}
 
 	@Override
 	public double getSizeToDownloadInMb() {
 		double totalSizeMb = 0.0d;
-		for (IndexItem item : items) {
+		for (DownloadItem item : items) {
 			if (item.hasActualDataToDownload()) {
 				totalSizeMb += item.getSizeToDownloadInMb();
 			}
@@ -113,10 +128,33 @@ public class MultipleIndexItem extends DownloadItem {
 	@Override
 	public double getArchiveSizeMB() {
 		double result = 0.0d;
-		for (IndexItem item : items) {
+		for (DownloadItem item : items) {
 			result += item.getArchiveSizeMB();
 		}
 		return result;
 	}
 
+	@Nullable
+	public static IndexItem getIndexItem(@NonNull DownloadItem obj) {
+		if (obj instanceof IndexItem) {
+			return (IndexItem) obj;
+		} else if (obj instanceof SrtmDownloadItem) {
+			return ((SrtmDownloadItem) obj).getIndexItem();
+		}
+		return null;
+	}
+
+	@Nullable
+	@Override
+	public String getAdditionalDescription(Context ctx) {
+		for (DownloadItem item : items) {
+			return item.getAdditionalDescription(ctx);
+		}
+		return null;
+	}
+
+	@Override
+	public String getDate(@NonNull DateFormat dateFormat, boolean remote) {
+		return "";
+	}
 }

OsmAnd/src/net/osmand/plus/download/MultipleIndexesUiHelper.java

@@ -1,113 +0,0 @@
-package net.osmand.plus.download;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
-
-import net.osmand.map.OsmandRegions;
-import net.osmand.plus.OsmandApplication;
-import net.osmand.plus.R;
-import net.osmand.plus.base.SelectMultipleItemsBottomSheet;
-import net.osmand.plus.base.SelectMultipleItemsBottomSheet.OnApplySelectionListener;
-import net.osmand.plus.base.SelectMultipleItemsBottomSheet.SelectableItem;
-import net.osmand.plus.base.SelectMultipleItemsBottomSheet.SelectionUpdateListener;
-
-import java.text.DateFormat;
-import java.util.ArrayList;
-import java.util.List;
-
-public class MultipleIndexesUiHelper {
-
-	public static void showDialog(@NonNull MultipleIndexItem multipleIndexItem,
-	                              @NonNull AppCompatActivity activity,
-	                              @NonNull final OsmandApplication app,
-	                              @NonNull DateFormat dateFormat,
-	                              boolean showRemoteDate,
-	                              @NonNull final SelectItemsToDownloadListener listener) {
-		List<IndexItem> indexesToDownload = getIndexesToDownload(multipleIndexItem);
-		List<SelectableItem> allItems = new ArrayList<>();
-		List<SelectableItem> selectedItems = new ArrayList<>();
-		OsmandRegions osmandRegions = app.getRegions();
-		for (IndexItem indexItem : multipleIndexItem.getAllIndexes()) {
-			SelectableItem selectableItem = new SelectableItem();
-			selectableItem.setTitle(indexItem.getVisibleName(app, osmandRegions, false));
-
-			String size = indexItem.getSizeDescription(app);
-			String date = indexItem.getDate(dateFormat, showRemoteDate);
-			String description = app.getString(R.string.ltr_or_rtl_combine_via_bold_point, size, date);
-			selectableItem.setDescription(description);
-
-			selectableItem.setIconId(indexItem.getType().getIconResource());
-			selectableItem.setObject(indexItem);
-			allItems.add(selectableItem);
-
-			if (indexesToDownload.contains(indexItem)) {
-				selectedItems.add(selectableItem);
-			}
-		}
-
-		final SelectMultipleItemsBottomSheet dialog =
-				SelectMultipleItemsBottomSheet.showInstance(activity, allItems, selectedItems, true);
-
-		dialog.setSelectionUpdateListener(new SelectionUpdateListener() {
-			@Override
-			public void onSelectionUpdate() {
-				dialog.setTitle(app.getString(R.string.welmode_download_maps));
-				String total = app.getString(R.string.shared_string_total);
-				double sizeToDownload = getDownloadSizeInMb(dialog.getSelectedItems());
-				String size = DownloadItem.getFormattedMb(app, sizeToDownload);
-				String description =
-						app.getString(R.string.ltr_or_rtl_combine_via_colon, total, size);
-				dialog.setDescription(description);
-				String btnTitle = app.getString(R.string.shared_string_download);
-				if (sizeToDownload > 0) {
-					btnTitle = app.getString(R.string.ltr_or_rtl_combine_via_dash, btnTitle, size);
-				}
-				dialog.setConfirmButtonTitle(btnTitle);
-			}
-		});
-
-		dialog.setOnApplySelectionListener(new OnApplySelectionListener() {
-			@Override
-			public void onSelectionApplied(List<SelectableItem> selectedItems) {
-				List<IndexItem> indexItems = new ArrayList<>();
-				for (SelectableItem item : selectedItems) {
-					Object obj = item.getObject();
-					if (obj instanceof IndexItem) {
-						indexItems.add((IndexItem) obj);
-					}
-				}
-				listener.onItemsToDownloadSelected(indexItems);
-			}
-		});
-	}
-
-	private static List<IndexItem> getIndexesToDownload(MultipleIndexItem multipleIndexItem) {
-		if (multipleIndexItem.hasActualDataToDownload()) {
-			// download left regions
-			return multipleIndexItem.getIndexesToDownload();
-		} else {
-			// download all regions again
-			return multipleIndexItem.getAllIndexes();
-		}
-	}
-
-	private static double getDownloadSizeInMb(@NonNull List<SelectableItem> selectableItems) {
-		List<IndexItem> indexItems = new ArrayList<>();
-		for (SelectableItem i : selectableItems) {
-			Object obj = i.getObject();
-			if (obj instanceof IndexItem) {
-				indexItems.add((IndexItem) obj);
-			}
-		}
-		double totalSizeMb = 0.0d;
-		for (IndexItem item : indexItems) {
-			totalSizeMb += item.getSizeToDownloadInMb();
-		}
-		return totalSizeMb;
-	}
-
-	public interface SelectItemsToDownloadListener {
-		void onItemsToDownloadSelected(List<IndexItem> items);
-	}
-
-}

OsmAnd/src/net/osmand/plus/download/SelectIndexesUiHelper.java

@@ -0,0 +1,280 @@
+package net.osmand.plus.download;
+
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
+import net.osmand.plus.OsmandApplication;
+import net.osmand.plus.R;
+import net.osmand.plus.base.MultipleSelectionBottomSheet;
+import net.osmand.plus.base.MultipleSelectionBottomSheet.SelectionUpdateListener;
+import net.osmand.plus.base.ModeSelectionBottomSheet;
+import net.osmand.plus.base.MultipleSelectionWithModeBottomSheet;
+import net.osmand.plus.base.SelectionBottomSheet;
+import net.osmand.plus.base.SelectionBottomSheet.OnApplySelectionListener;
+import net.osmand.plus.base.SelectionBottomSheet.OnUiInitializedAdapter;
+import net.osmand.plus.base.SelectionBottomSheet.SelectableItem;
+import net.osmand.plus.widgets.MultiStateToggleButton.OnRadioItemClickListener;
+import net.osmand.plus.widgets.MultiStateToggleButton.RadioItem;
+import net.osmand.util.Algorithms;
+
+import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+import static net.osmand.plus.download.MultipleDownloadItem.getIndexItem;
+
+public class SelectIndexesUiHelper {
+
+	private final OsmandApplication app;
+	private final AppCompatActivity activity;
+
+	private final ItemsToDownloadSelectedListener listener;
+	private final DateFormat dateFormat;
+	private final boolean showRemoteDate;
+	private final DownloadItem downloadItem;
+
+	private SelectionBottomSheet dialog;
+
+	private SelectIndexesUiHelper(@NonNull DownloadItem downloadItem,
+	                              @NonNull AppCompatActivity activity,
+	                              @NonNull DateFormat dateFormat,
+	                              boolean showRemoteDate,
+	                              @NonNull ItemsToDownloadSelectedListener listener) {
+		this.app = (OsmandApplication) activity.getApplicationContext();
+		this.activity = activity;
+		this.downloadItem = downloadItem;
+		this.dateFormat = dateFormat;
+		this.showRemoteDate = showRemoteDate;
+		this.listener = listener;
+	}
+
+	public static void showDialog(@NonNull DownloadItem i,
+	                              @NonNull AppCompatActivity a,
+	                              @NonNull DateFormat df,
+	                              boolean showRemoteDate,
+	                              @NonNull ItemsToDownloadSelectedListener l) {
+
+		new SelectIndexesUiHelper(i, a, df, showRemoteDate, l).showDialogInternal();
+	}
+
+	private void showDialogInternal() {
+		if (downloadItem.getType() == DownloadActivityType.SRTM_COUNTRY_FILE) {
+			if (downloadItem instanceof MultipleDownloadItem) {
+				showSrtmMultipleSelectionDialog();
+			} else {
+				showSrtmModeSelectionDialog();
+			}
+		} else if (downloadItem instanceof MultipleDownloadItem) {
+			showMultipleSelectionDialog();
+		}
+	}
+
+	private void showMultipleSelectionDialog() {
+		List<SelectableItem> allItems = new ArrayList<>();
+		List<SelectableItem> selectedItems = new ArrayList<>();
+		prepareItems(allItems, selectedItems);
+
+		MultipleSelectionBottomSheet msDialog = MultipleSelectionBottomSheet.showInstance(
+				activity, allItems, selectedItems, true);
+		this.dialog = msDialog;
+
+		msDialog.setOnUiInitializedAdapter(new OnUiInitializedAdapter() {
+			@Override
+			public void onUiInitialized() {
+				dialog.setTitle(app.getString(R.string.welmode_download_maps));
+			}
+		});
+
+		msDialog.setSelectionUpdateListener(new SelectionUpdateListener() {
+			@Override
+			public void onSelectionUpdate() {
+				updateSize();
+			}
+		});
+
+		msDialog.setOnApplySelectionListener(getOnApplySelectionListener(listener));
+	}
+
+	private void showSrtmMultipleSelectionDialog() {
+		List<SelectableItem> allItems = new ArrayList<>();
+		List<SelectableItem> selectedItems = new ArrayList<>();
+		prepareItems(allItems, selectedItems);
+
+		SrtmDownloadItem srtmItem = (SrtmDownloadItem) ((MultipleDownloadItem)downloadItem).getAllItems().get(0);
+		final int selectedModeOrder = srtmItem.isUseMetric() ? 0 : 1;
+		final List<RadioItem> radioItems = createSrtmRadioItems();
+
+		MultipleSelectionBottomSheet msDialog = MultipleSelectionWithModeBottomSheet.showInstance(
+				activity, allItems, selectedItems, radioItems, true);
+		this.dialog = msDialog;
+
+		msDialog.setOnUiInitializedAdapter(new OnUiInitializedAdapter() {
+			@Override
+			public void onUiInitialized() {
+				dialog.setTitle(app.getString(R.string.welmode_download_maps));
+				dialog.setSelectedMode(radioItems.get(selectedModeOrder));
+				dialog.setSecondaryDescription(app.getString(R.string.srtm_download_list_help_message));
+			}
+		});
+
+		msDialog.setSelectionUpdateListener(new SelectionUpdateListener() {
+			@Override
+			public void onSelectionUpdate() {
+				updateSize();
+			}
+		});
+
+		msDialog.setOnApplySelectionListener(getOnApplySelectionListener(listener));
+	}
+
+	private void showSrtmModeSelectionDialog() {
+		SrtmDownloadItem srtmItem = (SrtmDownloadItem) downloadItem;
+		final int selectedModeOrder = srtmItem.isUseMetric() ? 0 : 1;
+
+		final List<RadioItem> radioItems = createSrtmRadioItems();
+		SelectableItem preview = createSelectableItem(srtmItem);
+
+		dialog = ModeSelectionBottomSheet.showInstance(activity, preview, radioItems, true);
+
+		dialog.setOnUiInitializedAdapter(new OnUiInitializedAdapter() {
+			@Override
+			public void onUiInitialized() {
+				ModeSelectionBottomSheet dialog = (ModeSelectionBottomSheet) SelectIndexesUiHelper.this.dialog;
+				dialog.setTitle(app.getString(R.string.srtm_unit_format));
+				dialog.setPrimaryDescription(app.getString(R.string.srtm_download_single_help_message));
+				updateSize();
+				dialog.setSelectedMode(radioItems.get(selectedModeOrder));
+			}
+		});
+
+		dialog.setOnApplySelectionListener(getOnApplySelectionListener(listener));
+	}
+
+	private void prepareItems(List<SelectableItem> allItems,
+	                          List<SelectableItem> selectedItems) {
+		final MultipleDownloadItem multipleDownloadItem = (MultipleDownloadItem) downloadItem;
+		final List<DownloadItem> itemsToDownload = getItemsToDownload(multipleDownloadItem);
+		for (DownloadItem downloadItem : multipleDownloadItem.getAllItems()) {
+			SelectableItem selectableItem = createSelectableItem(downloadItem);
+			allItems.add(selectableItem);
+
+			if (itemsToDownload.contains(downloadItem)) {
+				selectedItems.add(selectableItem);
+			}
+		}
+	}
+
+	private List<RadioItem> createSrtmRadioItems() {
+		List<RadioItem> radioItems = new ArrayList<>();
+		radioItems.add(createSrtmRadioBtn(R.string.shared_string_meters, true));
+		radioItems.add(createSrtmRadioBtn(R.string.shared_string_feet, false));
+		return radioItems;
+	}
+
+	private RadioItem createSrtmRadioBtn(int titleId,
+	                                     final boolean useMeters) {
+		String title = Algorithms.capitalizeFirstLetter(app.getString(titleId));
+		RadioItem radioItem = new RadioItem(title);
+		radioItem.setOnClickListener(new OnRadioItemClickListener() {
+			@Override
+			public boolean onRadioItemClick(RadioItem radioItem, View view) {
+				updateDialogListItems(useMeters);
+				updateSize();
+				return true;
+			}
+		});
+		return radioItem;
+	}
+
+	private void updateDialogListItems(boolean useMeters) {
+		List<SelectableItem> items = new ArrayList<>(dialog.getAllItems());
+		for (SelectableItem item : items) {
+			DownloadItem downloadItem = (DownloadItem) item.getObject();
+			if (downloadItem instanceof SrtmDownloadItem) {
+				((SrtmDownloadItem) downloadItem).setUseMetric(useMeters);
+				updateSelectableItem(item, downloadItem);
+			}
+		}
+		dialog.setItems(items);
+	}
+
+	private SelectableItem createSelectableItem(DownloadItem item) {
+		SelectableItem selectableItem = new SelectableItem();
+		updateSelectableItem(selectableItem, item);
+		return selectableItem;
+	}
+
+	private void updateSelectableItem(SelectableItem selectableItem,
+	                                  DownloadItem downloadItem) {
+		selectableItem.setTitle(downloadItem.getVisibleName(app, app.getRegions(), false));
+
+		String size = downloadItem.getSizeDescription(app);
+		String addDescr = downloadItem.getAdditionalDescription(app);
+		if (addDescr != null) {
+			size += " " + addDescr;
+		}
+		String date = downloadItem.getDate(dateFormat, showRemoteDate);
+		String description = app.getString(R.string.ltr_or_rtl_combine_via_bold_point, size, date);
+		selectableItem.setDescription(description);
+
+		selectableItem.setIconId(downloadItem.getType().getIconResource());
+		selectableItem.setObject(downloadItem);
+	}
+
+	private OnApplySelectionListener getOnApplySelectionListener(final ItemsToDownloadSelectedListener listener) {
+		return new OnApplySelectionListener() {
+			@Override
+			public void onSelectionApplied(List<SelectableItem> selectedItems) {
+				List<IndexItem> indexes = new ArrayList<>();
+				for (SelectableItem item : selectedItems) {
+					IndexItem index = getIndexItem((DownloadItem) item.getObject());
+					if (index != null) {
+						indexes.add(index);
+					}
+				}
+				listener.onItemsToDownloadSelected(indexes);
+			}
+		};
+	}
+
+	private void updateSize() {
+		double sizeToDownload = getDownloadSizeInMb(dialog.getSelectedItems());
+		String size = DownloadItem.getFormattedMb(app, sizeToDownload);
+		String total = app.getString(R.string.shared_string_total);
+		String description = app.getString(R.string.ltr_or_rtl_combine_via_colon, total, size);
+		dialog.setTitleDescription(description);
+		String btnTitle = app.getString(R.string.shared_string_download);
+		if (sizeToDownload > 0) {
+			btnTitle = app.getString(R.string.ltr_or_rtl_combine_via_dash, btnTitle, size);
+		}
+		dialog.setApplyButtonTitle(btnTitle);
+	}
+
+	private double getDownloadSizeInMb(@NonNull List<SelectableItem> selectableItems) {
+		double totalSizeMb = 0.0d;
+		for (SelectableItem i : selectableItems) {
+			Object obj = i.getObject();
+			if (obj instanceof DownloadItem) {
+				totalSizeMb += ((DownloadItem) obj).getSizeToDownloadInMb();
+			}
+		}
+		return totalSizeMb;
+	}
+
+	private static List<DownloadItem> getItemsToDownload(MultipleDownloadItem md) {
+		if (md.hasActualDataToDownload()) {
+			// download left regions
+			return md.getItemsToDownload();
+		} else {
+			// download all regions again
+			return md.getAllItems();
+		}
+	}
+
+	public interface ItemsToDownloadSelectedListener {
+		void onItemsToDownloadSelected(List<IndexItem> items);
+	}
+
+}

OsmAnd/src/net/osmand/plus/download/SrtmDownloadItem.java

@@ -0,0 +1,191 @@
+package net.osmand.plus.download;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import net.osmand.IndexConstants;
+import net.osmand.plus.OsmandApplication;
+import net.osmand.plus.R;
+import net.osmand.plus.activities.LocalIndexInfo;
+import net.osmand.plus.helpers.enums.MetricsConstants;
+import net.osmand.util.Algorithms;
+
+import java.io.File;
+import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+import static net.osmand.IndexConstants.BINARY_SRTM_MAP_INDEX_EXT;
+import static net.osmand.IndexConstants.BINARY_SRTM_MAP_INDEX_EXT_ZIP;
+import static net.osmand.plus.activities.LocalIndexHelper.LocalIndexType.SRTM_DATA;
+import static net.osmand.plus.download.DownloadActivityType.SRTM_COUNTRY_FILE;
+
+public class SrtmDownloadItem extends DownloadItem {
+
+	private final List<IndexItem> indexes;
+	private boolean useMetric;
+
+	public SrtmDownloadItem(List<IndexItem> indexes, boolean useMetric) {
+		super(SRTM_COUNTRY_FILE);
+		this.indexes = indexes;
+		this.useMetric = useMetric;
+	}
+
+	public void setUseMetric(boolean useMetric) {
+		this.useMetric = useMetric;
+	}
+
+	public boolean isUseMetric() {
+		for (IndexItem index : indexes) {
+			if (index.isDownloaded()) {
+				return isMetricItem(index);
+			}
+		}
+		return useMetric;
+	}
+
+	@NonNull
+	public IndexItem getIndexItem() {
+		for (IndexItem index : indexes) {
+			if (index.isDownloaded()) {
+				return index;
+			}
+		}
+		for (IndexItem index : indexes) {
+			if (useMetric && isMetricItem(index) || !useMetric && !isMetricItem(index)) {
+				return index;
+			}
+		}
+		return indexes.get(0);
+	}
+
+	@Override
+	protected double getSizeToDownloadInMb() {
+		return getIndexItem().getSizeToDownloadInMb();
+	}
+
+	@Override
+	public double getArchiveSizeMB() {
+		return getIndexItem().getArchiveSizeMB();
+	}
+
+	@Override
+	public boolean isOutdated() {
+		for (DownloadItem item : indexes) {
+			if (item.isOutdated()) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public boolean isDownloaded() {
+		for (DownloadItem item : indexes) {
+			if (item.isDownloaded()) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public boolean hasActualDataToDownload() {
+		for (IndexItem item : indexes) {
+			if (!item.hasActualDataToDownload()) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	@Override
+	public boolean isDownloading(@NonNull DownloadIndexesThread thread) {
+		for (IndexItem item : indexes) {
+			if (thread.isDownloading(item)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public String getFileName() {
+		return getIndexItem().getFileName();
+	}
+
+	@NonNull
+	@Override
+	public List<File> getDownloadedFiles(@NonNull OsmandApplication app) {
+		List<File> result = new ArrayList<>();
+		for (IndexItem index : indexes) {
+			result.addAll(index.getDownloadedFiles(app));
+		}
+		return result;
+	}
+
+	public String getDate(@NonNull DateFormat dateFormat, boolean remote) {
+		return getIndexItem().getDate(dateFormat, remote);
+	}
+
+	@Override
+	public @Nullable String getAdditionalDescription(Context ctx) {
+		return getAbbreviationInScopes(ctx, this);
+	}
+
+	public static boolean shouldUseMetersByDefault(@NonNull OsmandApplication app) {
+		MetricsConstants metricSystem = app.getSettings().METRIC_SYSTEM.get();
+		return metricSystem != MetricsConstants.MILES_AND_FEET;
+	}
+
+	@NonNull
+	public static String getAbbreviationInScopes(Context ctx, Object obj) {
+		String abbreviation = ctx.getString(isMetricItem(obj) ? R.string.m : R.string.foot);
+		return "(" + abbreviation + ")";
+	}
+
+	public static boolean containsSrtmExtension(@NonNull String fileName) {
+		return fileName.contains(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)
+				|| fileName.contains(IndexConstants.BINARY_SRTM_FEET_MAP_INDEX_EXT);
+	}
+
+	public static boolean isSrtmFile(@NonNull String fileName) {
+		return fileName.endsWith(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)
+				|| fileName.endsWith(IndexConstants.BINARY_SRTM_FEET_MAP_INDEX_EXT);
+	}
+
+	@NonNull
+	public static String getExtension(IndexItem indexItem) {
+		return isMetricItem(indexItem) ?
+				IndexConstants.BINARY_SRTM_MAP_INDEX_EXT :
+				IndexConstants.BINARY_SRTM_FEET_MAP_INDEX_EXT;
+	}
+
+	public static boolean isSRTMItem(Object item) {
+		if (item instanceof DownloadItem) {
+			return ((DownloadItem) item).getType() == SRTM_COUNTRY_FILE;
+		} else if (item instanceof LocalIndexInfo) {
+			return ((LocalIndexInfo) item).getType() == SRTM_DATA;
+		}
+		return false;
+	}
+
+	private static boolean isMetricItem(Object item) {
+		if (item instanceof IndexItem) {
+			return ((IndexItem) item).getFileName().endsWith(BINARY_SRTM_MAP_INDEX_EXT_ZIP);
+		} else if (item instanceof LocalIndexInfo) {
+			return ((LocalIndexInfo) item).getFileName().endsWith(BINARY_SRTM_MAP_INDEX_EXT);
+		} else if (item instanceof SrtmDownloadItem) {
+			return isMetricItem(((SrtmDownloadItem) item).getIndexItem());
+		} else if (item instanceof MultipleDownloadItem) {
+			List<DownloadItem> items = ((MultipleDownloadItem) item).getAllItems();
+			if (!Algorithms.isEmpty(items)) {
+				return isMetricItem(items.get(0));
+			}
+		}
+		return false;
+	}
+
+}

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

@@ -87,7 +87,7 @@ public class ActiveDownloadsDialogFragment extends DialogFragment implements Dow
 			}
 			ItemViewHolder viewHolder = (ItemViewHolder) convertView.getTag();
 			IndexItem item = getItem(position);
-			viewHolder.bindIndexItem(item);
+			viewHolder.bindDownloadItem(item);
 			return convertView;
 		}
 		

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

@@ -78,7 +78,7 @@ public class DownloadResourceGroupAdapter extends OsmandBaseExpandableListAdapte
 			} else {
 				viewHolder.setShowTypeInDesc(true);
 			}
-			viewHolder.bindIndexItem(item);
+			viewHolder.bindDownloadItem(item);
 		} else {
 			DownloadResourceGroup group = (DownloadResourceGroup) child;
 			DownloadGroupViewHolder viewHolder;

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

@@ -41,9 +41,9 @@ import net.osmand.plus.download.DownloadActivityType;
 import net.osmand.plus.download.DownloadResourceGroup;
 import net.osmand.plus.download.DownloadResources;
 import net.osmand.plus.download.IndexItem;
-import net.osmand.plus.download.MultipleIndexesUiHelper;
+import net.osmand.plus.download.SelectIndexesUiHelper;
-import net.osmand.plus.download.MultipleIndexesUiHelper.SelectItemsToDownloadListener;
+import net.osmand.plus.download.SelectIndexesUiHelper.ItemsToDownloadSelectedListener;
-import net.osmand.plus.download.MultipleIndexItem;
+import net.osmand.plus.download.MultipleDownloadItem;
 import net.osmand.plus.download.ui.LocalIndexesFragment.LocalIndexOperationTask;
 import net.osmand.plus.helpers.FileNameTranslationHelper;
 import net.osmand.plus.inapp.InAppPurchaseHelper;
@@ -146,11 +146,11 @@ public class ItemViewHolder {
 		depthContoursPurchased = InAppPurchaseHelper.isDepthContoursPurchased(context.getMyApplication());
 	}
 
-	public void bindIndexItem(final DownloadItem downloadItem) {
+	public void bindDownloadItem(final DownloadItem downloadItem) {
-		bindIndexItem(downloadItem, null);
+		bindDownloadItem(downloadItem, null);
 	}
 
-	public void bindIndexItem(final DownloadItem downloadItem, final String cityName) {
+	public void bindDownloadItem(final DownloadItem downloadItem, final String cityName) {
 		initAppStatusVariables();
 		boolean isDownloading = downloadItem.isDownloading(context.getDownloadThread());
 		int progress = -1;
@@ -160,20 +160,20 @@ public class ItemViewHolder {
 		boolean disabled = checkDisabledAndClickAction(downloadItem);
 		/// name and left item
 		String name;
-		if(showTypeInName) {
+		if (showTypeInName) {
 			name = downloadItem.getType().getString(context);
 		} else {
 			name = downloadItem.getVisibleName(context, context.getMyApplication().getRegions(), showParentRegionName);
 		}
 		String text = (!Algorithms.isEmpty(cityName) && !cityName.equals(name) ? cityName + "\n" : "") + name;
 		nameTextView.setText(text);
-		if(!disabled) {
+		if (!disabled) {
 			nameTextView.setTextColor(textColorPrimary);
 		} else {
 			nameTextView.setTextColor(textColorSecondary);
 		}
 		int color = textColorSecondary;
-		if(downloadItem.isDownloaded() && !isDownloading) {
+		if (downloadItem.isDownloaded() && !isDownloading) {
 			int colorId = downloadItem.isOutdated() ? R.color.color_distance : R.color.color_ok;
 			color = context.getResources().getColor(colorId);
 		}
@@ -203,12 +203,12 @@ public class ItemViewHolder {
 				} else {
 					descrTextView.setText(downloadItem.getType().getString(context));
 				}
-			} else if (downloadItem instanceof MultipleIndexItem) {
+			} else if (downloadItem instanceof MultipleDownloadItem) {
-				MultipleIndexItem item = (MultipleIndexItem) downloadItem;
+				MultipleDownloadItem item = (MultipleDownloadItem) downloadItem;
 				String allRegionsHeader = context.getString(R.string.shared_strings_all_regions);
 				String regionsHeader = context.getString(R.string.regions);
-				String allRegionsCount = String.valueOf(item.getAllIndexes().size());
+				String allRegionsCount = String.valueOf(item.getAllItems().size());
-				String leftToDownloadCount = String.valueOf(item.getIndexesToDownload().size());
+				String leftToDownloadCount = String.valueOf(item.getItemsToDownload().size());
 				String header;
 				String count;
 				if (item.hasActualDataToDownload()) {
@@ -226,8 +226,11 @@ public class ItemViewHolder {
 					header = allRegionsHeader;
 					count = allRegionsCount;
 				}
-				String fullDescription =
+				String fullDescription = context.getString(R.string.ltr_or_rtl_combine_via_colon, header, count);
-						context.getString(R.string.ltr_or_rtl_combine_via_colon, header, count);
+				String addDescr = item.getAdditionalDescription(context);
+				if (addDescr != null) {
+					fullDescription += " " + addDescr;
+				}
 				if (item.hasActualDataToDownload()) {
 					fullDescription = context.getString(
 							R.string.ltr_or_rtl_combine_via_bold_point, fullDescription,
@@ -235,11 +238,14 @@ public class ItemViewHolder {
 				}
 				descrTextView.setText(fullDescription);
 			} else {
-				IndexItem item = (IndexItem) downloadItem;
 				String pattern = context.getString(R.string.ltr_or_rtl_combine_via_bold_point);
-				String type = item.getType().getString(context);
+				String type = downloadItem.getType().getString(context);
-				String size = item.getSizeDescription(context);
+				String size = downloadItem.getSizeDescription(context);
-				String date = item.getDate(dateFormat, showRemoteDate);
+				String addDescr = downloadItem.getAdditionalDescription(context);
+				if (addDescr != null) {
+					size += " " + addDescr;
+				}
+				String date = downloadItem.getDate(dateFormat, showRemoteDate);
 				String fullDescription = String.format(pattern, size, date);
 				if (showTypeInDesc) {
 					fullDescription = String.format(pattern, type, fullDescription);
@@ -254,14 +260,14 @@ public class ItemViewHolder {
 
 			if (showProgressInDesc) {
 				double mb = downloadItem.getArchiveSizeMB();
-				String v ;
+				String v;
 				if (progress != -1) {
 					v = context.getString(R.string.value_downloaded_of_max, mb * progress / 100, mb);
 				} else {
 					v = context.getString(R.string.file_size_in_mb, mb);
 				}
 				String fullDescription = v;
-				if(showTypeInDesc && downloadItem.getType() == DownloadActivityType.ROADS_FILE) {
+				if (showTypeInDesc && downloadItem.getType() == DownloadActivityType.ROADS_FILE) {
 					fullDescription = context.getString(R.string.ltr_or_rtl_combine_via_bold_point,
 							downloadItem.getType().getString(context), fullDescription);
 				}
@@ -274,9 +280,9 @@ public class ItemViewHolder {
 		}
 	}
 
-	public void bindIndexItem(final CityItem cityItem) {
+	public void bindDownloadItem(final CityItem cityItem) {
 		if (cityItem.getIndexItem() != null) {
-			bindIndexItem(cityItem.getIndexItem(), cityItem.getName());
+			bindDownloadItem(cityItem.getIndexItem(), cityItem.getName());
 		} else {
 			nameTextView.setText(cityItem.getName());
 			nameTextView.setTextColor(textColorPrimary);
@@ -302,7 +308,7 @@ public class ItemViewHolder {
 			if (isDownloading) {
 				rightImageButton.setImageDrawable(getContentIcon(context, R.drawable.ic_action_remove_dark));
 				rightImageButton.setContentDescription(context.getString(R.string.shared_string_cancel));
-			} else if(!item.hasActualDataToDownload()) {
+			} else if (!item.hasActualDataToDownload()) {
 				rightImageButton.setImageDrawable(getContentIcon(context, R.drawable.ic_overflow_menu_white));
 				rightImageButton.setContentDescription(context.getString(R.string.shared_string_more));
 			} else {
@@ -316,9 +322,9 @@ public class ItemViewHolder {
 	}
 
 	private int getDownloadActionIconId(@NonNull DownloadItem item) {
-		return item instanceof MultipleIndexItem ?
+		return item instanceof MultipleDownloadItem ?
 				R.drawable.ic_action_multi_download :
-				R.drawable.ic_action_import;
+				R.drawable.ic_action_gsave_dark;
 	}
 
 	@SuppressLint("DefaultLocale")
@@ -389,13 +395,13 @@ public class ItemViewHolder {
 			return new View.OnClickListener() {
 				@Override
 				public void onClick(View v) {
-					if(isDownloading) {
+					if (isDownloading) {
-						if(silentCancelDownload) {
+						if (silentCancelDownload) {
 							context.getDownloadThread().cancelDownload(item);
 						} else {
 							context.makeSureUserCancelDownload(item);
 						}
-					} else if(!item.hasActualDataToDownload()){
+					} else if (!item.hasActualDataToDownload()) {
 						showContextMenu(v, item, item.getRelatedGroup());
 					} else {
 						download(item, item.getRelatedGroup());
@@ -455,10 +461,11 @@ public class ItemViewHolder {
 				}
 			}
 		}
-		if(!handled) {
+		if (!handled) {
 			startDownload(item);
 		}
 	}
+
 	private void confirmDownload(final DownloadItem item) {
 		AlertDialog.Builder builder = new AlertDialog.Builder(context);
 		builder.setTitle(R.string.are_you_sure);
@@ -476,18 +483,17 @@ public class ItemViewHolder {
 	}
 
 	private void startDownload(DownloadItem item) {
-		if (item instanceof MultipleIndexItem) {
+		if (item instanceof IndexItem) {
-			selectIndexesToDownload((MultipleIndexItem) item);
-		} else if (item instanceof IndexItem) {
 			IndexItem indexItem = (IndexItem) item;
 			context.startDownload(indexItem);
+		} else {
+			selectIndexesToDownload(item);
 		}
 	}
 
-	private void selectIndexesToDownload(MultipleIndexItem item) {
+	private void selectIndexesToDownload(DownloadItem item) {
-		OsmandApplication app = context.getMyApplication();
+		SelectIndexesUiHelper.showDialog(item, context, dateFormat, showRemoteDate,
-		MultipleIndexesUiHelper.showDialog(item, context, app, dateFormat, showRemoteDate,
+				new ItemsToDownloadSelectedListener() {
-				new SelectItemsToDownloadListener() {
 					@Override
 					public void onItemsToDownloadSelected(List<IndexItem> indexes) {
 						IndexItem[] indexesArray = new IndexItem[indexes.size()];

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

@@ -55,6 +55,7 @@ import net.osmand.plus.dialogs.DirectionsDialogs;
 import net.osmand.plus.download.DownloadActivity;
 import net.osmand.plus.download.DownloadIndexesThread.DownloadEvents;
 import net.osmand.plus.download.IndexItem;
+import net.osmand.plus.download.SrtmDownloadItem;
 import net.osmand.plus.helpers.FileNameTranslationHelper;
 import net.osmand.plus.inapp.InAppPurchaseHelper;
 import net.osmand.plus.mapsource.EditMapSourceDialogFragment.OnMapSourceUpdateListener;
@@ -74,6 +75,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+
 public class LocalIndexesFragment extends OsmandExpandableListFragment implements DownloadEvents,
 		OnMapSourceUpdateListener, RenameCallback {
 	private LoadLocalIndexTask asyncLoader;
@@ -351,10 +353,10 @@ public class LocalIndexesFragment extends OsmandExpandableListFragment implement
 							getMyApplication().getResourceManager().closeFile(info.getFileName());
 							File tShm = new File(f.getParentFile(), f.getName() + "-shm");
 							File tWal = new File(f.getParentFile(), f.getName() + "-wal");
-							if(tShm.exists()) {
+							if (tShm.exists()) {
 								Algorithms.removeAllFiles(tShm);
 							}
-							if(tWal.exists()) {
+							if (tWal.exists()) {
 								Algorithms.removeAllFiles(tWal);
 							}
 						}
@@ -371,7 +373,7 @@ public class LocalIndexesFragment extends OsmandExpandableListFragment implement
 						}
 					} else if (operation == CLEAR_TILES_OPERATION) {
 						ITileSource src = (ITileSource) info.getAttachedObject();
-						if(src != null) {
+						if (src != null) {
 							src.deleteTiles(info.getPathToData());
 						}
 					}
@@ -419,7 +421,7 @@ public class LocalIndexesFragment extends OsmandExpandableListFragment implement
 		@Override
 		protected void onPostExecute(String result) {
 			a.setProgressBarIndeterminateVisibility(false);
-			if(result != null && result.length() > 0) {
+			if (result != null && result.length() > 0) {
 				Toast.makeText(a, result, Toast.LENGTH_LONG).show();
 			}
 
@@ -963,7 +965,7 @@ public class LocalIndexesFragment extends OsmandExpandableListFragment implement
 				return ctx.getString(R.string.download_roads_only_item);
 			} else if (child.isBackupedData() && child.getFileName().endsWith(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT)) {
 				return ctx.getString(R.string.download_wikipedia_maps);
-			} else if (child.isBackupedData() && child.getFileName().endsWith(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)) {
+			} else if (child.isBackupedData() && (SrtmDownloadItem.isSrtmFile(child.getFileName()))) {
 				return ctx.getString(R.string.download_srtm_maps);
 			}
 			return "";
@@ -1029,6 +1031,10 @@ public class LocalIndexesFragment extends OsmandExpandableListFragment implement
 					builder.append(AndroidUtils.formatSize(ctx, child.getSize() * 1024l));
 				}
 
+				if (SrtmDownloadItem.isSRTMItem(child)) {
+					builder.append(" ").append(SrtmDownloadItem.getAbbreviationInScopes(ctx, child));
+				}
+
 				if (!Algorithms.isEmpty(child.getDescription())) {
 					if (builder.length() > 0) {
 						builder.append(" • ");
@@ -1150,5 +1156,4 @@ public class LocalIndexesFragment extends OsmandExpandableListFragment implement
 	private DownloadActivity getDownloadActivity() {
 		return (DownloadActivity) getActivity();
 	}
-
 }

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

@@ -382,10 +382,10 @@ public class SearchDialogFragment extends DialogFragment implements DownloadEven
 				if (obj instanceof IndexItem) {
 					IndexItem item = (IndexItem) obj;
 					viewHolder.setShowTypeInDesc(true);
-					viewHolder.bindIndexItem(item);
+					viewHolder.bindDownloadItem(item);
 				} else {
 					CityItem item = (CityItem) obj;
-					viewHolder.bindIndexItem(item);
+					viewHolder.bindDownloadItem(item);
 					if (item.getIndexItem() == null) {
 						new IndexItemResolverTask(viewHolder, item).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 					}
@@ -461,7 +461,7 @@ public class SearchDialogFragment extends DialogFragment implements DownloadEven
 				if (viewHolder != null) {
 					if (indexItem != null) {
 						cityItem.setIndexItem(indexItem);
-						viewHolder.bindIndexItem(indexItem, cityItem.getName());
+						viewHolder.bindDownloadItem(indexItem, cityItem.getName());
 					}
 				}
 			}

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

@@ -410,7 +410,7 @@ public class UpdatesIndexFragment extends OsmAndListFragment implements Download
 				holder.setShowRemoteDate(true);
 				holder.setShowTypeInDesc(true);
 				holder.setShowParentRegionName(true);
-				holder.bindIndexItem(getItem(position));
+				holder.bindDownloadItem(getItem(position));
 			}
 			return view;
 		}

OsmAnd/src/net/osmand/plus/resources/IncrementalChangesManager.java

@@ -1,12 +1,11 @@
 package net.osmand.plus.resources;
 
-import android.view.LayoutInflater;
-
 import net.osmand.IndexConstants;
 import net.osmand.PlatformUtil;
 import net.osmand.binary.BinaryMapIndexReader;
 import net.osmand.osm.io.NetworkUtils;
 import net.osmand.plus.R;
+import net.osmand.plus.download.SrtmDownloadItem;
 import net.osmand.util.Algorithms;
 
 import org.apache.commons.logging.Log;
@@ -34,7 +33,6 @@ public class IncrementalChangesManager {
 	private ResourceManager resourceManager;
 	private final Map<String, RegionUpdateFiles> regions = new ConcurrentHashMap<String, IncrementalChangesManager.RegionUpdateFiles>();
 
-	
 	public IncrementalChangesManager(ResourceManager resourceManager) {
 		this.resourceManager = resourceManager;
 	}
@@ -47,8 +45,8 @@ public class IncrementalChangesManager {
 			}
 			Set<String> existingFiles = new HashSet<String>();
 			for (File f : files) {
-				if(!f.getName().endsWith(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT) && 
+				if (!f.getName().endsWith(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT) &&
-						!f.getName().endsWith(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)) {
+						!SrtmDownloadItem.isSrtmFile(f.getName())) {
 					existingFiles.add(Algorithms.getFileNameWithoutExtension(f));
 				}
 			}
@@ -71,7 +69,7 @@ public class IncrementalChangesManager {
 	public synchronized void indexMainMap(File f, long dateCreated) {
 		String nm = Algorithms.getFileNameWithoutExtension(f).toLowerCase();
 		RegionUpdateFiles regionUpdateFiles = regions.get(nm);
-		if(regionUpdateFiles == null) {
+		if (regionUpdateFiles == null) {
 			regionUpdateFiles = new RegionUpdateFiles(nm);
 			regions.put(nm, regionUpdateFiles);
 		}
@@ -98,7 +96,7 @@ public class IncrementalChangesManager {
 				RegionUpdate monthRu = regionUpdateFiles.monthUpdates.get(month);
 				while (it.hasNext()) {
 					RegionUpdate ru = it.next();
-					if(ru == null) {
+					if (ru == null) {
 						continue;
 					}
 					if (ru.obfCreated <= dateCreated ||
@@ -117,13 +115,13 @@ public class IncrementalChangesManager {
 
 	public synchronized boolean index(File f, long dateCreated, BinaryMapIndexReader mapReader) {
 		String index = Algorithms.getFileNameWithoutExtension(f).toLowerCase();
-		if(index.length() <= 9 || index.charAt(index.length() - 9) != '_'){
+		if (index.length() <= 9 || index.charAt(index.length() - 9) != '_') {
 			return false;
 		}
 		String nm = index.substring(0, index.length() - 9);
 		String date = index.substring(index.length() - 9 + 1);
 		RegionUpdateFiles regionUpdateFiles = regions.get(nm);
-		if(regionUpdateFiles == null) {
+		if (regionUpdateFiles == null) {
 			regionUpdateFiles = new RegionUpdateFiles(nm);
 			regions.put(nm, regionUpdateFiles);
 		}
@@ -136,7 +134,7 @@ public class IncrementalChangesManager {
 
 	public static long calculateSize(List<IncrementalUpdate> list) {
 		long l = 0;
-		for(IncrementalUpdate iu : list) {
+		for (IncrementalUpdate iu : list) {
 			l += iu.containerSize;
 		}
 		return l;
@@ -165,7 +163,7 @@ public class IncrementalChangesManager {
 			ru.date = date;
 			ru.file = file;
 			ru.obfCreated = dateCreated;
-			if(date.endsWith("00")) {
+			if (date.endsWith("00")) {
 				monthUpdates.put(monthYear, ru);
 			} else {
 				List<RegionUpdate> list = dayUpdates.get(monthYear);
@@ -186,10 +184,9 @@ public class IncrementalChangesManager {
 		public String errorMessage;
 		public RegionUpdateFiles updateFiles;
 
-		
 		public boolean isPreferrableLimitForDayUpdates(String monthYearPart, List<IncrementalUpdate> dayUpdates) {
 			List<RegionUpdate> lst = updateFiles.dayUpdates.get(monthYearPart);
-			if(lst == null || lst.size() < 10) {
+			if (lst == null || lst.size() < 10) {
 				return true;
 			}
 			return false;
@@ -208,7 +205,7 @@ public class IncrementalChangesManager {
 				} else {
 					// it causes problem when person doesn't restart application for 10 days so updates stop working
 					// && isPreferrableLimitForDayUpdates(n.monthYearPart, n.getDayUpdates())
-					if (n.isDayUpdateApplicable() ) {
+					if (n.isDayUpdateApplicable()) {
 						ll.addAll(n.getDayUpdates());
 					} else if (n.isMonthUpdateApplicable()) {
 						ll.addAll(n.getMonthUpdate());
@@ -236,7 +233,7 @@ public class IncrementalChangesManager {
 	}
 
 	protected static class IncrementalUpdateGroupByMonth {
-		public final String monthYearPart ;
+		public final String monthYearPart;
 		public List<IncrementalUpdate> dayUpdates = new ArrayList<IncrementalUpdate>();
 		public IncrementalUpdate monthUpdate;
 
@@ -254,7 +251,7 @@ public class IncrementalChangesManager {
 
 		public boolean isDayUpdateApplicable() {
 			boolean inLimits = dayUpdates.size() > 0 && dayUpdates.size() < 4;
-			if(!inLimits) {
+			if (!inLimits) {
 				return false;
 			}
 			return true;
@@ -262,12 +259,12 @@ public class IncrementalChangesManager {
 
 		public List<IncrementalUpdate> getMonthUpdate() {
 			List<IncrementalUpdate> ll = new ArrayList<IncrementalUpdate>();
-			if(monthUpdate == null) {
+			if (monthUpdate == null) {
 				return ll;
 			}
 			ll.add(monthUpdate);
-			for(IncrementalUpdate iu : dayUpdates) {
+			for (IncrementalUpdate iu : dayUpdates) {
-				if(iu.timestamp > monthUpdate.timestamp) {
+				if (iu.timestamp > monthUpdate.timestamp) {
 					ll.add(iu);
 				}
 			}
@@ -278,7 +275,7 @@ public class IncrementalChangesManager {
 			return dayUpdates;
 		}
 
-		public IncrementalUpdateGroupByMonth(String monthYearPart ) {
+		public IncrementalUpdateGroupByMonth(String monthYearPart) {
 			this.monthYearPart = monthYearPart;
 		}
 	}
@@ -314,7 +311,7 @@ public class IncrementalChangesManager {
 		int elements = 0;
 		while (parser.next() != XmlPullParser.END_DOCUMENT) {
 			if (parser.getEventType() == XmlPullParser.START_TAG) {
-				elements ++;
+				elements++;
 				if (parser.getName().equals("update")) {
 					IncrementalUpdate dt = new IncrementalUpdate();
 					dt.date = parser.getAttributeValue("", "updateDate");
@@ -333,20 +330,18 @@ public class IncrementalChangesManager {
 		return lst;
 	}
 
-	
-
 	public IncrementalUpdateList getUpdatesByMonth(String fileName) {
 		IncrementalUpdateList iul = new IncrementalUpdateList();
 		RegionUpdateFiles ruf = regions.get(fileName.toLowerCase());
 		iul.updateFiles = ruf;
-		if(ruf == null) {
+		if (ruf == null) {
 			iul.errorMessage = resourceManager.getContext().getString(R.string.no_updates_available);
 			return iul;
 		}
 		long timestamp = getTimestamp(ruf);
 		try {
 			List<IncrementalUpdate> lst = getIncrementalUpdates(fileName, timestamp);
-			for(IncrementalUpdate iu : lst) {
+			for (IncrementalUpdate iu : lst) {
 				iul.addUpdate(iu);
 			}
 		} catch (Exception e) {
@@ -357,9 +352,9 @@ public class IncrementalChangesManager {
 		return iul;
 	}
 
-	public long getUpdatesSize(String fileName){
+	public long getUpdatesSize(String fileName) {
 		RegionUpdateFiles ruf = regions.get(fileName.toLowerCase());
-		if(ruf == null) {
+		if (ruf == null) {
 			return 0;
 		}
 		long size = 0;
@@ -374,9 +369,9 @@ public class IncrementalChangesManager {
 		return size;
 	}
 
-	public void deleteUpdates(String fileName){
+	public void deleteUpdates(String fileName) {
 		RegionUpdateFiles ruf = regions.get(fileName.toLowerCase());
-		if(ruf == null) {
+		if (ruf == null) {
 			return;
 		}
 		for (List<RegionUpdate> regionUpdates : ruf.dayUpdates.values()) {
@@ -399,7 +394,7 @@ public class IncrementalChangesManager {
 
 	public long getTimestamp(String fileName) {
 		RegionUpdateFiles ruf = regions.get(fileName.toLowerCase());
-		if(ruf == null) {
+		if (ruf == null) {
 			return System.currentTimeMillis();
 		}
 		return getTimestamp(ruf);
@@ -407,7 +402,7 @@ public class IncrementalChangesManager {
 
 	public long getMapTimestamp(String fileName) {
 		RegionUpdateFiles ruf = regions.get(fileName.toLowerCase());
-		if(ruf == null) {
+		if (ruf == null) {
 			return System.currentTimeMillis();
 		}
 		return ruf.mainFileInit;

OsmAnd/src/net/osmand/plus/resources/ResourceManager.java

@@ -41,6 +41,7 @@ import net.osmand.plus.R;
 import net.osmand.plus.Version;
 import net.osmand.plus.download.DownloadOsmandIndexesHelper;
 import net.osmand.plus.download.DownloadOsmandIndexesHelper.AssetEntry;
+import net.osmand.plus.download.SrtmDownloadItem;
 import net.osmand.plus.inapp.InAppPurchaseHelper;
 import net.osmand.plus.render.MapRenderRepositories;
 import net.osmand.plus.render.NativeOsmandLibrary;
@@ -94,7 +95,7 @@ public class ResourceManager {
 
 	protected static ResourceManager manager = null;
 
-	protected File dirWithTiles ;
+	protected File dirWithTiles;
 
 	private List<TilesCache> tilesCacheList = new ArrayList<>();
 	private BitmapTilesCache bitmapTilesCache;
@@ -126,10 +127,11 @@ public class ResourceManager {
 		private List<BinaryMapIndexReader> readers = new ArrayList<>(BinaryMapReaderResourceType.values().length);
 		private boolean useForRouting;
 		private boolean useForPublicTransport;
+
 		public BinaryMapReaderResource(File f, BinaryMapIndexReader initialReader) {
 			this.filename = f;
 			this.initialReader = initialReader;
-			while(readers.size() < BinaryMapReaderResourceType.values().length) {
+			while (readers.size() < BinaryMapReaderResourceType.values().length) {
 				readers.add(null);
 			}
 		}
@@ -205,16 +207,14 @@ public class ResourceManager {
 
 	protected final Map<String, BinaryMapReaderResource> fileReaders = new ConcurrentHashMap<String, BinaryMapReaderResource>();
 
-	
 	private final Map<String, RegionAddressRepository> addressMap = new ConcurrentHashMap<String, RegionAddressRepository>();
 	protected final Map<String, AmenityIndexRepository> amenityRepositories = new ConcurrentHashMap<String, AmenityIndexRepository>();
-//	protected final Map<String, BinaryMapIndexReader> routingMapFiles = new ConcurrentHashMap<String, BinaryMapIndexReader>();
+	//	protected final Map<String, BinaryMapIndexReader> routingMapFiles = new ConcurrentHashMap<String, BinaryMapIndexReader>();
 	protected final Map<String, BinaryMapReaderResource> transportRepositories = new ConcurrentHashMap<String, BinaryMapReaderResource>();
 	protected final Map<String, BinaryMapReaderResource> travelRepositories = new ConcurrentHashMap<String, BinaryMapReaderResource>();
 	protected final Map<String, String> indexFileNames = new ConcurrentHashMap<String, String>();
 	protected final Map<String, String> basemapFileNames = new ConcurrentHashMap<String, String>();
 
-	
 	protected final IncrementalChangesManager changesManager = new IncrementalChangesManager(this);
 
 	protected final MapRenderRepositories renderer;
@@ -293,7 +293,7 @@ public class ResourceManager {
 		// ".nomedia" indicates there are no pictures and no music to list in this dir for the Gallery app
 		try {
 			context.getAppPath(".nomedia").createNewFile(); //$NON-NLS-1$
-		} catch( Exception e ) {
+		} catch (Exception e) {
 		}
 		for (TilesCache tilesCache : tilesCacheList) {
 			tilesCache.setDirWithTiles(dirWithTiles);
@@ -323,7 +323,7 @@ public class ResourceManager {
 		return null;
 	}
 
-	public synchronized void tileDownloaded(DownloadRequest request){
+	public synchronized void tileDownloaded(DownloadRequest request) {
 		if (request instanceof TileLoadDownloadRequest) {
 			TileLoadDownloadRequest req = ((TileLoadDownloadRequest) request);
 			TilesCache cache = getTilesCache(req.tileSource);
@@ -338,7 +338,7 @@ public class ResourceManager {
 		return cache != null && cache.tileExistOnFileSystem(file, map, x, y, zoom);
 	}
 
-	public void clearTileForMap(String file, ITileSource map, int x, int y, int zoom){
+	public void clearTileForMap(String file, ITileSource map, int x, int y, int zoom) {
 		TilesCache cache = getTilesCache(map);
 		if (cache != null) {
 			cache.getTileForMap(file, map, x, y, zoom, true, false, true, true);
@@ -376,7 +376,7 @@ public class ResourceManager {
 
 	////////////////////////////////////////////// Working with indexes ////////////////////////////////////////////////
 
-	public List<String> reloadIndexesOnStart(AppInitializer progress, List<String> warnings){
+	public List<String> reloadIndexesOnStart(AppInitializer progress, List<String> warnings) {
 		close();
 		// check we have some assets to copy to sdcard
 		warnings.addAll(checkAssets(progress, false));
@@ -429,7 +429,7 @@ public class ResourceManager {
 		return warnings;
 	}
 
-	public List<String> indexFontFiles(IProgress progress){
+	public List<String> indexFontFiles(IProgress progress) {
 		File file = context.getAppPath(IndexConstants.FONT_INDEX_DIR);
 		file.mkdirs();
 		List<String> warnings = new ArrayList<String>();
@@ -476,7 +476,7 @@ public class ResourceManager {
 
 	public List<String> checkAssets(IProgress progress, boolean forceUpdate) {
 		String fv = Version.getFullVersion(context);
-		if(context.getAppInitializer().isAppVersionChanged()) {
+		if (context.getAppInitializer().isAppVersionChanged()) {
 			copyMissingJSAssets();
 		}
 		if (!fv.equalsIgnoreCase(context.getSettings().PREVIOUS_INSTALLED_VERSION.get()) || forceUpdate) {
@@ -540,6 +540,7 @@ public class ResourceManager {
 	private final static String ASSET_COPY_MODE__overwriteOnlyIfExists = "overwriteOnlyIfExists";
 	private final static String ASSET_COPY_MODE__alwaysOverwriteOrCopy = "alwaysOverwriteOrCopy";
 	private final static String ASSET_COPY_MODE__copyOnlyIfDoesNotExist = "copyOnlyIfDoesNotExist";
+
 	private void unpackBundledAssets(AssetManager assetManager, File appDataDir, IProgress progress, boolean isFirstInstall) throws IOException, XmlPullParserException {
 		List<AssetEntry> assetEntries = DownloadOsmandIndexesHelper.getBundledAssets(assetManager);
 		for (AssetEntry asset : assetEntries) {
@@ -581,7 +582,7 @@ public class ResourceManager {
 	}
 
 	public static void copyAssets(AssetManager assetManager, String assetName, File file) throws IOException {
-		if(file.exists()){
+		if (file.exists()) {
 			Algorithms.removeAllFiles(file);
 		}
 		file.getParentFile().mkdirs();
@@ -593,9 +594,9 @@ public class ResourceManager {
 	}
 
 	private List<File> collectFiles(File dir, String ext, List<File> files) {
-		if(dir.exists() && dir.canRead()) {
+		if (dir.exists() && dir.canRead()) {
 			File[] lf = dir.listFiles();
-			if(lf == null || lf.length == 0) {
+			if (lf == null || lf.length == 0) {
 				return files;
 			}
 			for (File f : lf) {
@@ -607,11 +608,9 @@ public class ResourceManager {
 		return files;
 	}
 
-	
-	
 	private void renameRoadsFiles(ArrayList<File> files, File roadsPath) {
 		Iterator<File> it = files.iterator();
-		while(it.hasNext()) {
+		while (it.hasNext()) {
 			File f = it.next();
 			if (f.getName().endsWith("-roads" + IndexConstants.BINARY_MAP_INDEX_EXT)) {
 				f.renameTo(new File(roadsPath, f.getName().replace("-roads" + IndexConstants.BINARY_MAP_INDEX_EXT,
@@ -703,7 +702,7 @@ public class ResourceManager {
 					log.error(String.format("File %s could not be read", f.getName()), e);
 				}
 				boolean wikiMap = (f.getName().contains("_wiki") || f.getName().contains(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT));
-				boolean srtmMap = f.getName().contains(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT);
+				boolean srtmMap = SrtmDownloadItem.containsSrtmExtension(f.getName());
 				if (mapReader == null || (!Version.isPaidVersion(context) && wikiMap && !f.getName().equals(DEFAULT_WIKIVOYAGE_TRAVEL_OBF))) {
 					warnings.add(MessageFormat.format(context.getString(R.string.version_index_is_not_supported), f.getName())); //$NON-NLS-1$
 				} else {
@@ -714,9 +713,9 @@ public class ResourceManager {
 					if (dateCreated == 0) {
 						dateCreated = f.lastModified();
 					}
-					if(f.getParentFile().getName().equals(liveDir.getName())) {
+					if (f.getParentFile().getName().equals(liveDir.getName())) {
 						boolean toUse = changesManager.index(f, dateCreated, mapReader);
-						if(!toUse) {
+						if (!toUse) {
 							try {
 								mapReader.close();
 							} catch (IOException e) {
@@ -724,7 +723,7 @@ public class ResourceManager {
 							}
 							continue;
 						}
-					} else if(!wikiMap && !srtmMap) {
+					} else if (!wikiMap && !srtmMap) {
 						changesManager.indexMainMap(f, dateCreated);
 					}
 					indexFileNames.put(f.getName(), dateFormat.format(dateCreated)); //$NON-NLS-1$
@@ -733,7 +732,7 @@ public class ResourceManager {
 					}
 					renderer.initializeNewResource(progress, f, mapReader);
 					BinaryMapReaderResource resource = new BinaryMapReaderResource(f, mapReader);
-					if (collectTravelFiles(resource)){
+					if (collectTravelFiles(resource)) {
 						//travel files are indexed
 						continue;
 					}
@@ -789,7 +788,7 @@ public class ResourceManager {
 			}
 		}
 		Iterator<Entry<PoiCategory, Map<String, PoiType>>> it = toAddPoiTypes.entrySet().iterator();
-		while(it.hasNext()) {
+		while (it.hasNext()) {
 			Entry<PoiCategory, Map<String, PoiType>> next = it.next();
 			PoiCategory category = next.getKey();
 			category.addExtraPoiTypes(next.getValue());
@@ -839,7 +838,7 @@ public class ResourceManager {
 	}
 
 	private boolean collectTravelFiles(BinaryMapReaderResource resource) {
-		if (resource.getFileName().contains(IndexConstants.BINARY_TRAVEL_GUIDE_MAP_INDEX_EXT)){
+		if (resource.getFileName().contains(IndexConstants.BINARY_TRAVEL_GUIDE_MAP_INDEX_EXT)) {
 			travelRepositories.put(resource.getFileName(), resource);
 			return true;
 		}
@@ -931,7 +930,7 @@ public class ResourceManager {
 					if (!repos.isEmpty()) {
 						for (AmenityIndexRepository r : repos) {
 							List<Amenity> res = r.searchAmenitiesOnThePath(locations, radius, filter, matcher);
-							if(res != null) {
+							if (res != null) {
 								amenities.addAll(res);
 							}
 						}
@@ -944,11 +943,10 @@ public class ResourceManager {
 		return amenities;
 	}
 
-	
+	public boolean containsAmenityRepositoryToSearch(boolean searchByName) {
-	public boolean containsAmenityRepositoryToSearch(boolean searchByName){
 		for (AmenityIndexRepository index : getAmenityRepositories()) {
-			if(searchByName){
+			if (searchByName) {
-				if(index instanceof AmenityIndexRepositoryBinary){
+				if (index instanceof AmenityIndexRepositoryBinary) {
 					return true;
 				}
 			} else {
@@ -973,7 +971,7 @@ public class ResourceManager {
 			}
 			if (index instanceof AmenityIndexRepositoryBinary) {
 				if (index.checkContainsInt(top, left, bottom, right)) {
-					if(index.checkContains(lat, lon)){
+					if (index.checkContains(lat, lon)) {
 						list.add(0, (AmenityIndexRepositoryBinary) index);
 					} else {
 						list.add((AmenityIndexRepositoryBinary) index);
@@ -1019,11 +1017,11 @@ public class ResourceManager {
 
 	////////////////////////////////////////////// Working with address ///////////////////////////////////////////
 
-	public RegionAddressRepository getRegionRepository(String name){
+	public RegionAddressRepository getRegionRepository(String name) {
 		return addressMap.get(name);
 	}
 
-	public Collection<RegionAddressRepository> getAddressRepositories(){
+	public Collection<RegionAddressRepository> getAddressRepositories() {
 		return addressMap.values();
 	}
 
@@ -1040,7 +1038,6 @@ public class ResourceManager {
 		return res;
 	}
 
-	
 	////////////////////////////////////////////// Working with transport ////////////////////////////////////////////////
 
 	private List<BinaryMapIndexReader> getTransportRepositories(double topLat, double leftLon, double bottomLat, double rightLon) {
@@ -1076,7 +1073,7 @@ public class ResourceManager {
 
 	public List<TransportRoute> getRoutesForStop(TransportStop stop) {
 		List<TransportRoute> rts = stop.getRoutes();
-		if(rts != null) {
+		if (rts != null) {
 			return rts;
 		}
 		return Collections.emptyList();
@@ -1087,12 +1084,12 @@ public class ResourceManager {
 		return renderer.updateMapIsNeeded(rotatedTileBox, drawSettings);
 	}
 
-	public void updateRendererMap(RotatedTileBox rotatedTileBox, OnMapLoadedListener mapLoadedListener){
+	public void updateRendererMap(RotatedTileBox rotatedTileBox, OnMapLoadedListener mapLoadedListener) {
 		renderer.interruptLoadingMap();
 		asyncLoadingThread.requestToLoadMap(new MapLoadRequest(rotatedTileBox, mapLoadedListener));
 	}
 
-	public void interruptRendering(){
+	public void interruptRendering() {
 		renderer.interruptLoadingMap();
 	}
 
@@ -1114,12 +1111,12 @@ public class ResourceManager {
 		travelRepositories.remove(fileName);
 		renderer.closeConnection(fileName);
 		BinaryMapReaderResource resource = fileReaders.remove(fileName);
-		if(resource != null) {
+		if (resource != null) {
 			resource.close();
 		}
 	}
 
-	public synchronized void close(){
+	public synchronized void close() {
 		for (TilesCache tc : tilesCacheList) {
 			tc.close();
 		}
@@ -1130,7 +1127,7 @@ public class ResourceManager {
 		travelRepositories.clear();
 		addressMap.clear();
 		amenityRepositories.clear();
-		for(BinaryMapReaderResource res : fileReaders.values()) {
+		for (BinaryMapReaderResource res : fileReaders.values()) {
 			res.close();
 		}
 		fileReaders.clear();
@@ -1183,8 +1180,7 @@ public class ResourceManager {
 		return new LinkedHashMap<String, String>(indexFileNames);
 	}
 
-	
+	public boolean containsBasemap() {
-	public boolean containsBasemap(){
 		return !basemapFileNames.isEmpty();
 	}
 

OsmAnd/src/net/osmand/plus/settings/backend/backup/FileSettingsItem.java

@@ -7,6 +7,7 @@ import androidx.annotation.Nullable;
 import net.osmand.IndexConstants;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
+import net.osmand.plus.download.SrtmDownloadItem;
 import net.osmand.util.Algorithms;
 
 import org.json.JSONException;
@@ -92,7 +93,7 @@ public class FileSettingsItem extends StreamSettingsItem {
 					case OTHER:
 						break;
 					case SRTM_MAP:
-						if (name.endsWith(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)) {
+						if (SrtmDownloadItem.isSrtmFile(name)) {
 							return subtype;
 						}
 						break;
@@ -257,6 +258,8 @@ public class FileSettingsItem extends StreamSettingsItem {
 			prefix = oldPath.substring(0, oldPath.lastIndexOf(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT));
 		} else if (oldPath.endsWith(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)) {
 			prefix = oldPath.substring(0, oldPath.lastIndexOf(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT));
+		} else if (oldPath.endsWith(IndexConstants.BINARY_SRTM_FEET_MAP_INDEX_EXT)) {
+			prefix = oldPath.substring(0, oldPath.lastIndexOf(IndexConstants.BINARY_SRTM_FEET_MAP_INDEX_EXT));
 		} else if (oldPath.endsWith(IndexConstants.BINARY_ROAD_MAP_INDEX_EXT)) {
 			prefix = oldPath.substring(0, oldPath.lastIndexOf(IndexConstants.BINARY_ROAD_MAP_INDEX_EXT));
 		} else {

OsmAnd/src/net/osmand/plus/settings/datastorage/DataStorageHelper.java

@@ -200,7 +200,7 @@ public class DataStorageHelper {
 
 		terrainMemory = MemoryItem.builder()
 				.setKey(TERRAIN_MEMORY)
-				.setExtensions(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)
+				.setExtensions(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT, IndexConstants.BINARY_SRTM_FEET_MAP_INDEX_EXT)
 				.setDirectories(
 						createDirectory(SRTM_INDEX_DIR, true, EXTENSIONS, true),
 						createDirectory(TILES_INDEX_DIR, false, PREFIX, false))

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

@@ -36,6 +36,7 @@ import net.osmand.plus.base.bottomsheetmenu.BottomSheetItemWithCompoundButton.Bu
 import net.osmand.plus.base.bottomsheetmenu.BottomSheetItemWithDescription;
 import net.osmand.plus.base.bottomsheetmenu.SimpleBottomSheetItem;
 import net.osmand.plus.base.bottomsheetmenu.simpleitems.SimpleDividerItem;
+import net.osmand.plus.download.SrtmDownloadItem;
 import net.osmand.plus.helpers.AvoidSpecificRoads.AvoidRoadInfo;
 import net.osmand.plus.helpers.FileNameTranslationHelper;
 import net.osmand.plus.helpers.GpxUiHelper;
@@ -530,7 +531,7 @@ public class ExportItemsBottomSheet extends MenuBottomSheetDialogFragment {
 			return getString(R.string.download_roads_only_item);
 		} else if (file.getName().endsWith(IndexConstants.BINARY_WIKI_MAP_INDEX_EXT)) {
 			return getString(R.string.download_wikipedia_maps);
-		} else if (file.getName().endsWith(IndexConstants.BINARY_SRTM_MAP_INDEX_EXT)) {
+		} else if (SrtmDownloadItem.isSrtmFile(file.getName())) {
 			return getString(R.string.download_srtm_maps);
 		} else if (file.getName().endsWith(IndexConstants.BINARY_MAP_INDEX_EXT)) {
 			return getString(R.string.download_regular_maps);

OsmAnd/src/net/osmand/plus/widgets/MultiStateToggleButton.java

@@ -18,6 +18,7 @@ import net.osmand.plus.UiUtilities;
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.List;
 
 public class MultiStateToggleButton {
@@ -37,6 +38,13 @@ public class MultiStateToggleButton {
 		this.nightMode = nightMode;
 	}
 
+	public void setItems(Collection<RadioItem> radioItems) {
+		if (radioItems == null || radioItems.size() < 2) return;
+		items.clear();
+		items.addAll(radioItems);
+		initView();
+	}
+
 	public void setItems(RadioItem firstBtn, RadioItem secondBtn, RadioItem... other) {
 		items.clear();
 		items.add(firstBtn);