Add ability to remove custom plugins

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

@@ -105,7 +105,14 @@ public class CustomOsmandPlugin extends OsmandPlugin {
 		});
 	}
 
-	private void removePluginItemsFromFile(final File file) {
+	public void removePluginItems(PluginItemsListener itemsListener) {
+		File pluginItemsFile = getPluginItemsFile();
+		if (pluginItemsFile.exists()) {
+			removePluginItemsFromFile(pluginItemsFile, itemsListener);
+		}
+	}
+
+	private void removePluginItemsFromFile(final File file, final PluginItemsListener itemsListener) {
 		app.getSettingsHelper().collectSettings(file, "", 1, new SettingsCollectListener() {
 			@Override
 			public void onSettingsCollectFinished(boolean succeed, boolean empty, @NonNull List<SettingsItem> items) {
@@ -165,6 +172,9 @@ public class CustomOsmandPlugin extends OsmandPlugin {
 						}
 					}
 				}
+				if (itemsListener != null) {
+					itemsListener.onItemsRemoved();
+				}
 			}
 		});
 	}
@@ -172,15 +182,15 @@ public class CustomOsmandPlugin extends OsmandPlugin {
 	@Override
 	public void disable(OsmandApplication app) {
 		super.disable(app);
-		File pluginItemsFile = getPluginItemsFile();
+		removePluginItems(null);
-		if (pluginItemsFile.exists()) {
-			removePluginItemsFromFile(pluginItemsFile);
-		}
 	}
 
-	private File getPluginItemsFile() {
+	public File getPluginDir() {
-		File pluginDir = new File(app.getAppPath(null), IndexConstants.PLUGINS_DIR + pluginId);
+		return new File(app.getAppPath(null), IndexConstants.PLUGINS_DIR + pluginId);
-		return new File(pluginDir, "items" + IndexConstants.OSMAND_SETTINGS_FILE_EXT);
+	}
+
+	public File getPluginItemsFile() {
+		return new File(getPluginDir(), "items" + IndexConstants.OSMAND_SETTINGS_FILE_EXT);
 	}
 
 	@Override
@@ -406,4 +416,10 @@ public class CustomOsmandPlugin extends OsmandPlugin {
 	public Drawable getAssetResourceImage() {
 		return image;
 	}
+
+	public interface PluginItemsListener {
+
+		void onItemsRemoved();
+
+	}
 }

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

@@ -283,6 +283,21 @@ public abstract class OsmandPlugin {
 		saveCustomPlugins(app);
 	}
 
+	public static void removeCustomPlugin(@NonNull OsmandApplication app, @NonNull final CustomOsmandPlugin plugin) {
+		allPlugins.remove(plugin);
+		if (plugin.isActive()) {
+			plugin.removePluginItems(new CustomOsmandPlugin.PluginItemsListener() {
+				@Override
+				public void onItemsRemoved() {
+					Algorithms.removeAllFiles(plugin.getPluginDir());
+				}
+			});
+		} else {
+			Algorithms.removeAllFiles(plugin.getPluginDir());
+		}
+		saveCustomPlugins(app);
+	}
+
 	private static void loadCustomPlugins(@NonNull OsmandApplication app) {
 		SettingsAPI settingsAPI = app.getSettings().getSettingsAPI();
 		Object pluginPrefs = settingsAPI.getPreferenceObject(PLUGINS_PREFERENCES_NAME);
@@ -303,7 +318,6 @@ public abstract class OsmandPlugin {
 
 	private static void saveCustomPlugins(OsmandApplication app) {
 		List<CustomOsmandPlugin> customOsmandPlugins = getCustomPlugins();
-		if (!customOsmandPlugins.isEmpty()) {
 		SettingsAPI settingsAPI = app.getSettings().getSettingsAPI();
 		Object pluginPrefs = settingsAPI.getPreferenceObject(PLUGINS_PREFERENCES_NAME);
 		JSONArray itemsJson = new JSONArray();
@@ -323,7 +337,6 @@ public abstract class OsmandPlugin {
 			settingsAPI.edit(pluginPrefs).putString(CUSTOM_PLUGINS_KEY, jsonStr).commit();
 		}
 	}
-	}
 
 	private static void activatePlugins(OsmandApplication app, Set<String> enabledPlugins) {
 		for (OsmandPlugin plugin : allPlugins) {

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

@@ -1,6 +1,7 @@
 package net.osmand.plus.activities;
 
 import android.app.Activity;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.TypedArray;
 import android.os.Bundle;
@@ -14,11 +15,13 @@ import android.widget.ImageView;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.PopupMenu;
 import androidx.fragment.app.Fragment;
 
 import net.osmand.AndroidUtils;
 import net.osmand.aidl.ConnectedApp;
+import net.osmand.plus.CustomOsmandPlugin;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.OsmandPlugin;
 import net.osmand.plus.R;
@@ -251,6 +254,34 @@ public class PluginsActivity extends OsmandListActivity implements DownloadIndex
 			});
 		}
 
+		if (plugin instanceof CustomOsmandPlugin) {
+			MenuItem settingsItem = optionsMenu.getMenu().add(R.string.shared_string_delete);
+			settingsItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+				@Override
+				public boolean onMenuItemClick(MenuItem item) {
+					showDeletePluginDialog((CustomOsmandPlugin) plugin);
+					optionsMenu.dismiss();
+					return true;
+				}
+			});
+		}
+
 		optionsMenu.show();
 	}
+
+	private void showDeletePluginDialog(final CustomOsmandPlugin plugin) {
+		AlertDialog.Builder builder = new AlertDialog.Builder(PluginsActivity.this);
+		builder.setTitle(getString(R.string.delete_confirmation_msg, plugin.getName()));
+		builder.setMessage(R.string.are_you_sure);
+		builder.setNegativeButton(R.string.shared_string_cancel, null);
+		builder.setPositiveButton(R.string.shared_string_ok, new DialogInterface.OnClickListener() {
+			@Override
+			public void onClick(DialogInterface dialog, int which) {
+				OsmandApplication app = getMyApplication();
+				OsmandPlugin.removeCustomPlugin(app, plugin);
+				getListAdapter().remove(plugin);
+			}
+		});
+		builder.show();
+	}
 }