feat: option to delete temporary directory.

assets/i18n/en_US.json

@@ -139,7 +139,10 @@
         "restartAppForChanges": "Restart the app to apply changes",
         "deleteKeystoreLabel": "Delete keystore",
         "deleteKeystoreHint": "Delete the keystore used to sign the app",
-        "deletedKeystore": "Keystore deleted"
+        "deletedKeystore": "Keystore deleted",
+        "deleteTempDirLabel": "Delete temp directory",
+        "deleteTempDirHint": "Delete the temporary directory used to store temporary files",
+        "deletedTempDir": "Temp directory deleted"
     },
     "appInfoView": {
         "widgetTitle": "App Info",

lib/services/manager_api.dart

@@ -98,6 +98,13 @@ class ManagerAPI {
     await _prefs.setBool('crashlyticsEnabled', value);
   }
 
+  Future<void> deleteTempFolder() async {
+    final Directory dir = Directory('/data/local/tmp/revanced-manager');
+    if (await dir.exists()) {
+      await dir.delete(recursive: true);
+    }
+  }
+
   Future<void> deleteKeystore() async {
     final File keystore = File(
         '/sdcard/Android/data/app.revanced.manager.flutter/files/revanced-keystore.keystore');

lib/ui/views/settings/settings_view.dart

@@ -152,6 +152,22 @@ class SettingsView extends StatelessWidget {
                         subtitle: I18nText('settingsView.deleteKeystoreHint'),
                         onTap: () => model.deleteKeystore,
                       ),
+                      ListTile(
+                        contentPadding:
+                            const EdgeInsets.symmetric(horizontal: 20.0),
+                        title: I18nText(
+                          'settingsView.deleteTempDirLabel',
+                          child: const Text(
+                            '',
+                            style: TextStyle(
+                              fontSize: 20,
+                              fontWeight: FontWeight.w500,
+                            ),
+                          ),
+                        ),
+                        subtitle: I18nText('settingsView.deleteTempDirHint'),
+                        onTap: () => model.deleteTempDir(),
+                      ),
                     ],
                   ),
                   _settingsDivider,

lib/ui/views/settings/settings_viewmodel.dart

@@ -343,6 +343,12 @@ class SettingsViewModel extends BaseViewModel {
     notifyListeners();
   }
 
+  void deleteTempDir() {
+    _managerAPI.deleteTempFolder();
+    _toast.showBottom('settingsView.deletedTempDir');
+    notifyListeners();
+  }
+
   Future<int> getSdkVersion() async {
     AndroidDeviceInfo info = await DeviceInfoPlugin().androidInfo;
     return info.version.sdkInt ?? -1;