[app] Async improvements

app/src/main/java/org/lsposed/manager/App.java

@@ -20,7 +20,6 @@
 
 package org.lsposed.manager;
 
-import android.annotation.SuppressLint;
 import android.app.Application;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ -30,6 +29,7 @@ import android.system.Os;
 import android.util.Log;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
 import androidx.preference.PreferenceManager;
 
 import com.google.gson.JsonParser;
@@ -47,6 +47,8 @@ import java.io.StringWriter;
 import java.time.Instant;
 import java.time.ZoneOffset;
 import java.util.Locale;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 import okhttp3.Cache;
 import okhttp3.Call;
@@ -67,12 +69,11 @@ public class App extends Application {
     }
 
     public static final String TAG = "LSPosedManager";
-    @SuppressLint("StaticFieldLeak")
     private static App instance = null;
     private static OkHttpClient okHttpClient;
     private static Cache okHttpCache;
     private SharedPreferences pref;
-
+    private ExecutorService executorService;
 
     public static App getInstance() {
         return instance;
@@ -82,6 +83,10 @@ public class App extends Application {
         return instance.pref;
     }
 
+    public static ExecutorService getExecutorService() {
+        return instance.executorService;
+    }
+
     private void setCrashReport() {
         Thread.setDefaultUncaughtExceptionHandler((thread, throwable) -> {
 
@@ -116,6 +121,8 @@ public class App extends Application {
 
         instance = this;
 
+        executorService = Executors.newCachedThreadPool();
+
         pref = PreferenceManager.getDefaultSharedPreferences(this);
         if ("CN".equals(Locale.getDefault().getCountry())) {
             if (!pref.contains("doh")) {

app/src/main/java/org/lsposed/manager/adapters/ScopeAdapter.java

@@ -255,7 +255,7 @@ public class ScopeAdapter extends RecyclerView.Adapter<ScopeAdapter.ViewHolder>
             if (launchIntent != null) {
                 ConfigManager.startActivityAsUserWithFeature(launchIntent, module.userId);
             } else {
-                fragment.makeSnackBar(R.string.module_no_ui, Snackbar.LENGTH_LONG);
+                Snackbar.make(fragment.binding.snackbar, R.string.module_no_ui, Snackbar.LENGTH_LONG).show();
             }
             return true;
         } else if (itemId == R.id.backup) {
@@ -469,7 +469,7 @@ public class ScopeAdapter extends RecyclerView.Adapter<ScopeAdapter.ViewHolder>
             checkedList.remove(appInfo.application);
         }
         if (!ConfigManager.setModuleScope(module.packageName, checkedList)) {
-            fragment.makeSnackBar(R.string.failed_to_save_scope_list, Snackbar.LENGTH_SHORT);
+            Snackbar.make(fragment.binding.snackbar, R.string.failed_to_save_scope_list, Snackbar.LENGTH_SHORT).show();
             if (!isChecked) {
                 checkedList.add(appInfo.application);
             } else {

app/src/main/java/org/lsposed/manager/ui/fragment/AppListFragment.java

@@ -19,28 +19,25 @@
 
 package org.lsposed.manager.ui.fragment;
 
-import android.content.Intent;
-import android.os.AsyncTask;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Toast;
 
 import androidx.activity.OnBackPressedCallback;
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.annotation.StringRes;
-import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.SearchView;
 import androidx.recyclerview.widget.LinearLayoutManager;
 
 import com.google.android.material.snackbar.Snackbar;
 
-import org.lsposed.manager.BuildConfig;
+import org.lsposed.manager.App;
 import org.lsposed.manager.R;
 import org.lsposed.manager.adapters.ScopeAdapter;
 import org.lsposed.manager.databinding.FragmentAppListBinding;
@@ -111,56 +108,35 @@ public class AppListFragment extends BaseFragment {
 
         backupLauncher = registerForActivityResult(new ActivityResultContracts.CreateDocument(),
                 uri -> {
-                    if (uri != null) {
+                    if (uri == null) return;
+                    runAsync(() -> {
                         try {
-                            // grantUriPermission might throw RemoteException on MIUI
+                            BackupUtils.backup(uri, modulePackageName);
-                            requireActivity().grantUriPermission(BuildConfig.APPLICATION_ID, uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
                         } catch (Exception e) {
-                            e.printStackTrace();
+                            var text = App.getInstance().getString(R.string.settings_backup_failed2, e.getMessage());
+                            if (binding != null && isResumed()) {
+                                Snackbar.make(binding.snackbar, text, Snackbar.LENGTH_LONG).show();
+                            } else {
+                                Toast.makeText(App.getInstance(), text, Toast.LENGTH_LONG).show();
                             }
-                        AlertDialog alertDialog = new AlertDialog.Builder(requireActivity())
-                                .setCancelable(false)
-                                .setMessage(R.string.settings_backuping)
-                                .show();
-                        AsyncTask.THREAD_POOL_EXECUTOR.execute(() -> {
-                            boolean success = BackupUtils.backup(requireActivity(), uri, modulePackageName);
-                            try {
-                                requireActivity().runOnUiThread(() -> {
-                                    alertDialog.dismiss();
-                                    makeSnackBar(success ? R.string.settings_backup_success : R.string.settings_backup_failed, Snackbar.LENGTH_SHORT);
-                                });
-                            } catch (Exception e) {
-                                e.printStackTrace();
                         }
                     });
-                    }
                 });
         restoreLauncher = registerForActivityResult(new ActivityResultContracts.OpenDocument(),
                 uri -> {
-                    if (uri != null) {
+                    if (uri == null) return;
+                    runAsync(() -> {
                         try {
-                            // grantUriPermission might throw RemoteException on MIUI
+                            BackupUtils.restore(uri, modulePackageName);
-                            requireActivity().grantUriPermission(BuildConfig.APPLICATION_ID, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
                         } catch (Exception e) {
-                            e.printStackTrace();
+                            var text = App.getInstance().getString(R.string.settings_restore_failed2, e.getMessage());
+                            if (binding != null && isResumed()) {
+                                Snackbar.make(binding.snackbar, text, Snackbar.LENGTH_LONG).show();
+                            } else {
+                                Toast.makeText(App.getInstance(), text, Toast.LENGTH_LONG).show();
                             }
-                        AlertDialog alertDialog = new AlertDialog.Builder(requireActivity())
-                                .setCancelable(false)
-                                .setMessage(R.string.settings_restoring)
-                                .show();
-                        AsyncTask.THREAD_POOL_EXECUTOR.execute(() -> {
-                            boolean success = BackupUtils.restore(requireActivity(), uri, modulePackageName);
-                            try {
-                                requireActivity().runOnUiThread(() -> {
-                                    alertDialog.dismiss();
-                                    makeSnackBar(success ? R.string.settings_restore_success : R.string.settings_restore_failed, Snackbar.LENGTH_SHORT);
-                                    scopeAdapter.refresh(false);
-                                });
-                            } catch (Exception e) {
-                                e.printStackTrace();
                         }
                     });
-                    }
                 });
 
         requireActivity().getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {
@@ -207,12 +183,4 @@ public class AppListFragment extends BaseFragment {
         }
         return super.onContextItemSelected(item);
     }
-
-    public void makeSnackBar(String text, @Snackbar.Duration int duration) {
-        Snackbar.make(binding.snackbar, text, duration).show();
-    }
-
-    public void makeSnackBar(@StringRes int text, @Snackbar.Duration int duration) {
-        Snackbar.make(binding.snackbar, text, duration).show();
-    }
 }

app/src/main/java/org/lsposed/manager/ui/fragment/BaseFragment.java

@@ -26,8 +26,11 @@ import androidx.fragment.app.Fragment;
 import androidx.navigation.NavController;
 import androidx.navigation.fragment.NavHostFragment;
 
+import org.lsposed.manager.App;
 import org.lsposed.manager.R;
 
+import java.util.concurrent.Future;
+
 public class BaseFragment extends Fragment {
     public void navigateUp() {
         getNavController().navigateUp();
@@ -59,4 +62,8 @@ public class BaseFragment extends Fragment {
             onPrepareOptionsMenu(toolbar.getMenu());
         }
     }
+
+    public Future<?> runAsync(Runnable runnable) {
+        return App.getExecutorService().submit(runnable);
+    }
 }

app/src/main/java/org/lsposed/manager/ui/fragment/CompileDialogFragment.java

@@ -34,7 +34,6 @@ import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatDialogFragment;
 import androidx.fragment.app.FragmentManager;
-import androidx.lifecycle.Lifecycle;
 
 import com.google.android.material.snackbar.Snackbar;
 
@@ -93,7 +92,7 @@ public class CompileDialogFragment extends AppCompatDialogFragment {
             appInfo = arguments.getParcelable(KEY_APP_INFO);
             String[] command = COMPILE_RESET_COMMAND;
             command[6] = appInfo.packageName;
-            new CompileTask(this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, command);
+            new CompileTask(this).executeOnExecutor(App.getExecutorService(), command);
         } else {
             dismissAllowingStateLoss();
         }
@@ -156,8 +155,8 @@ public class CompileDialogFragment extends AppCompatDialogFragment {
             if (fragment != null) {
                 fragment.dismissAllowingStateLoss();
                 AppListFragment appListFragment = (AppListFragment) fragment.getParentFragment();
-                if (appListFragment != null && appListFragment.getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED)) {
+                if (appListFragment != null && appListFragment.binding != null && appListFragment.isResumed()) {
-                    appListFragment.makeSnackBar(text, Snackbar.LENGTH_LONG);
+                    Snackbar.make(appListFragment.binding.snackbar, text, Snackbar.LENGTH_LONG).show();
                     return;
                 }
             }

app/src/main/java/org/lsposed/manager/ui/fragment/LogsFragment.java

@@ -34,6 +34,7 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
@@ -46,6 +47,7 @@ import androidx.recyclerview.widget.RecyclerView;
 import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.tabs.TabLayout;
 
+import org.lsposed.manager.App;
 import org.lsposed.manager.ConfigManager;
 import org.lsposed.manager.R;
 import org.lsposed.manager.databinding.FragmentLogsBinding;
@@ -80,15 +82,18 @@ public class LogsFragment extends BaseFragment {
             new ActivityResultContracts.CreateDocument(),
             uri -> {
                 if (uri == null) return;
-                AsyncTask.THREAD_POOL_EXECUTOR.execute(() -> {
+                runAsync(() -> {
                     try (var os = new ZipOutputStream(requireContext().getContentResolver().openOutputStream(uri))) {
                         os.setLevel(Deflater.BEST_COMPRESSION);
                         zipLogs(os);
                         os.finish();
                     } catch (IOException e) {
-                        var str = getResources().getString(R.string.logs_save_failed);
+                        var text = App.getInstance().getString(R.string.logs_save_failed2, e.getMessage());
-                        Snackbar.make(binding.snackbar, str + "\n" + e.getMessage(),
+                        if (binding != null && isResumed()) {
-                                Snackbar.LENGTH_LONG).show();
+                            Snackbar.make(binding.snackbar, text, Snackbar.LENGTH_LONG).show();
+                        } else {
+                            Toast.makeText(App.getInstance(), text, Toast.LENGTH_LONG).show();
+                        }
                     }
                 });
             });

app/src/main/java/org/lsposed/manager/ui/fragment/SettingsFragment.java

@@ -19,21 +19,20 @@
 
 package org.lsposed.manager.ui.fragment;
 
-import android.content.Intent;
+import android.content.Context;
-import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Toast;
 
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
-import androidx.appcompat.app.AlertDialog;
 import androidx.preference.Preference;
 import androidx.preference.SwitchPreference;
 import androidx.recyclerview.widget.RecyclerView;
@@ -42,7 +41,6 @@ import com.google.android.material.snackbar.Snackbar;
 import com.takisoft.preferencex.PreferenceFragmentCompat;
 
 import org.lsposed.manager.App;
-import org.lsposed.manager.BuildConfig;
 import org.lsposed.manager.ConfigManager;
 import org.lsposed.manager.R;
 import org.lsposed.manager.databinding.FragmentSettingsBinding;
@@ -82,61 +80,55 @@ public class SettingsFragment extends BaseFragment {
     }
 
     public static class PreferenceFragment extends PreferenceFragmentCompat {
+        private SettingsFragment parentFragment;
+
         ActivityResultLauncher<String> backupLauncher = registerForActivityResult(new ActivityResultContracts.CreateDocument(),
                 uri -> {
-                    if (uri != null) {
+                    if (uri == null || parentFragment == null) return;
+                    parentFragment.runAsync(() -> {
                         try {
-                            // grantUriPermission might throw RemoteException on MIUI
+                            BackupUtils.backup(uri);
-                            requireActivity().grantUriPermission(BuildConfig.APPLICATION_ID, uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
                         } catch (Exception e) {
-                            e.printStackTrace();
+                            var text = App.getInstance().getString(R.string.settings_backup_failed2, e.getMessage());
+                            if (parentFragment != null && parentFragment.binding != null && isResumed()) {
+                                Snackbar.make(parentFragment.binding.snackbar, text, Snackbar.LENGTH_LONG).show();
+                            } else {
+                                Toast.makeText(App.getInstance(), text, Toast.LENGTH_LONG).show();
                             }
-                        AlertDialog alertDialog = new AlertDialog.Builder(requireActivity())
-                                .setCancelable(false)
-                                .setMessage(R.string.settings_backuping)
-                                .show();
-                        AsyncTask.THREAD_POOL_EXECUTOR.execute(() -> {
-                            boolean success = BackupUtils.backup(requireContext(), uri);
-                            try {
-                                SettingsFragment fragment = (SettingsFragment) getParentFragment();
-                                requireActivity().runOnUiThread(() -> {
-                                    alertDialog.dismiss();
-                                    fragment.makeSnackBar(success ? R.string.settings_backup_success : R.string.settings_backup_failed, Snackbar.LENGTH_SHORT);
-                                });
-                            } catch (Exception e) {
-                                e.printStackTrace();
                         }
                     });
-                    }
                 });
         ActivityResultLauncher<String[]> restoreLauncher = registerForActivityResult(new ActivityResultContracts.OpenDocument(),
                 uri -> {
-                    if (uri != null) {
+                    if (uri == null || parentFragment == null) return;
+                    parentFragment.runAsync(() -> {
                         try {
-                            // grantUriPermission might throw RemoteException on MIUI
+                            BackupUtils.restore(uri);
-                            requireActivity().grantUriPermission(BuildConfig.APPLICATION_ID, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
                         } catch (Exception e) {
-                            e.printStackTrace();
+                            var text = App.getInstance().getString(R.string.settings_restore_failed2, e.getMessage());
+                            if (parentFragment != null && parentFragment.binding != null && isResumed()) {
+                                Snackbar.make(parentFragment.binding.snackbar, text, Snackbar.LENGTH_LONG).show();
+                            } else {
+                                Toast.makeText(App.getInstance(), text, Toast.LENGTH_LONG).show();
                             }
-                        AlertDialog alertDialog = new AlertDialog.Builder(requireActivity())
-                                .setCancelable(false)
-                                .setMessage(R.string.settings_restoring)
-                                .show();
-                        AsyncTask.THREAD_POOL_EXECUTOR.execute(() -> {
-                            boolean success = BackupUtils.restore(requireContext(), uri);
-                            try {
-                                SettingsFragment fragment = (SettingsFragment) getParentFragment();
-                                requireActivity().runOnUiThread(() -> {
-                                    alertDialog.dismiss();
-                                    fragment.makeSnackBar(success ? R.string.settings_restore_success : R.string.settings_restore_failed, Snackbar.LENGTH_SHORT);
-                                });
-                            } catch (Exception e) {
-                                e.printStackTrace();
                         }
                     });
-                    }
                 });
 
+        @Override
+        public void onAttach(@NonNull Context context) {
+            super.onAttach(context);
+
+            parentFragment = (SettingsFragment) requireParentFragment();
+        }
+
+        @Override
+        public void onDetach() {
+            super.onDetach();
+
+            parentFragment = null;
+        }
+
         @Override
         public void onCreatePreferencesFix(Bundle savedInstanceState, String rootKey) {
             addPreferencesFromResource(R.xml.prefs);

app/src/main/java/org/lsposed/manager/util/BackupUtils.java

@@ -20,16 +20,16 @@
 
 package org.lsposed.manager.util;
 
-import android.content.Context;
 import android.net.Uri;
 
 import org.json.JSONArray;
+import org.json.JSONException;
 import org.json.JSONObject;
+import org.lsposed.manager.App;
 import org.lsposed.manager.ConfigManager;
 import org.lsposed.manager.adapters.ScopeAdapter;
 
-import java.io.InputStream;
+import java.io.IOException;
-import java.io.OutputStream;
 import java.util.HashSet;
 import java.util.List;
 import java.util.zip.GZIPInputStream;
@@ -38,12 +38,11 @@ import java.util.zip.GZIPOutputStream;
 public class BackupUtils {
     private static final int VERSION = 2;
 
-    public static boolean backup(Context context, Uri uri) {
+    public static void backup(Uri uri) throws JSONException, IOException {
-        return backup(context, uri, null);
+        backup(uri, null);
     }
 
-    public static boolean backup(Context context, Uri uri, String packageName) {
+    public static void backup(Uri uri, String packageName) throws IOException, JSONException {
-        try {
         JSONObject rootObject = new JSONObject();
         rootObject.put("version", VERSION);
         JSONArray modulesArray = new JSONArray();
@@ -67,26 +66,17 @@ public class BackupUtils {
             modulesArray.put(moduleObject);
         }
         rootObject.put("modules", modulesArray);
-            OutputStream outputStream = context.getContentResolver().openOutputStream(uri);
+        try (GZIPOutputStream gzipOutputStream = new GZIPOutputStream(App.getInstance().getContentResolver().openOutputStream(uri))) {
-            GZIPOutputStream gzipOutputStream = new GZIPOutputStream(outputStream);
             gzipOutputStream.write(rootObject.toString().getBytes());
-            gzipOutputStream.close();
-            outputStream.close();
-            return true;
-        } catch (Exception e) {
-            e.printStackTrace();
         }
-        return false;
     }
 
-    public static boolean restore(Context context, Uri uri) {
+    public static void restore(Uri uri) throws JSONException, IOException {
-        return restore(context, uri, null);
+        restore(uri, null);
     }
 
-    public static boolean restore(Context context, Uri uri, String packageName) {
+    public static void restore(Uri uri, String packageName) throws IOException, JSONException {
-        try {
+        try (GZIPInputStream gzipInputStream = new GZIPInputStream(App.getInstance().getContentResolver().openInputStream(uri), 32)) {
-            InputStream inputStream = context.getContentResolver().openInputStream(uri);
-            GZIPInputStream gzipInputStream = new GZIPInputStream(inputStream, 32);
             StringBuilder string = new StringBuilder();
             byte[] data = new byte[32];
             int bytesRead;
@@ -94,7 +84,6 @@ public class BackupUtils {
                 string.append(new String(data, 0, bytesRead));
             }
             gzipInputStream.close();
-            inputStream.close();
             JSONObject rootObject = new JSONObject(string.toString());
             int version = rootObject.getInt("version");
             if (version == VERSION || version == 1) {
@@ -122,12 +111,8 @@ public class BackupUtils {
                     }
                 }
             } else {
-                return false;
+                throw new IllegalArgumentException("Unknown backup file version");
             }
-            return true;
-        } catch (Exception e) {
-            e.printStackTrace();
         }
-        return false;
     }
 }

app/src/main/java/org/lsposed/manager/util/EmptyAccessibilityDelegate.java

@@ -0,0 +1,61 @@
+package org.lsposed.manager.util;
+
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.accessibility.AccessibilityNodeInfo;
+import android.view.accessibility.AccessibilityNodeProvider;
+
+public class EmptyAccessibilityDelegate extends View.AccessibilityDelegate {
+
+    @Override
+    public void sendAccessibilityEvent(View host, int eventType) {
+
+    }
+
+    @Override
+    public boolean performAccessibilityAction(View host, int action, Bundle args) {
+        return true;
+    }
+
+    @Override
+    public void sendAccessibilityEventUnchecked(View host, AccessibilityEvent event) {
+
+    }
+
+    @Override
+    public boolean dispatchPopulateAccessibilityEvent(View host, AccessibilityEvent event) {
+        return true;
+    }
+
+    @Override
+    public void onPopulateAccessibilityEvent(View host, AccessibilityEvent event) {
+
+    }
+
+    @Override
+    public void onInitializeAccessibilityEvent(View host, AccessibilityEvent event) {
+
+    }
+
+    @Override
+    public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
+
+    }
+
+    @Override
+    public void addExtraDataToAccessibilityNodeInfo(View host, AccessibilityNodeInfo info, String extraDataKey, Bundle arguments) {
+
+    }
+
+    @Override
+    public boolean onRequestSendAccessibilityEvent(ViewGroup host, View child, AccessibilityEvent event) {
+        return true;
+    }
+
+    @Override
+    public AccessibilityNodeProvider getAccessibilityNodeProvider(View host) {
+        return null;
+    }
+}

app/src/main/res/values/strings.xml

@@ -62,7 +62,7 @@
     <string name="menuSaveToSd">Save</string>
     <string name="nav_item_logs_lsp">LSPosed Logs</string>
     <string name="nav_item_logs_module">Modules Logs</string>
-    <string name="logs_save_failed">Failed to save:</string>
+    <string name="logs_save_failed2">Failed to save:\n%s</string>
     <string name="menuClearLog">Clear log now</string>
     <string name="logs_cleared">Log successfully cleared.</string>
     <string name="scroll_top">Scroll to top</string>
@@ -72,6 +72,8 @@
     <string name="menuReload">Reload</string>
     <string name="logs_clear_failed_2">Failed to clear the log</string>
     <string name="verbose_log_not_avaliable">Verbose log is not available, if you just enabled it without reboot, try again after reboot.</string>
+    <string name="logs_saving">Saving logs…</string>
+    <string name="logs_saved">Logs saved!</string>
 
     <!-- Notification -->
     <string name="module_is_not_activated_yet">Xposed module is not activated yet</string>
@@ -155,11 +157,11 @@
     <string name="settings_backup">Backup</string>
     <string name="settings_backuping">Backing up…</string>
     <string name="settings_backup_success">Backup finished!</string>
-    <string name="settings_backup_failed">Failed to backup</string>
+    <string name="settings_backup_failed2">Failed to backup:\n%s</string>
     <string name="settings_restore">Restore</string>
     <string name="settings_restoring">Restoring…</string>
     <string name="settings_restore_success">Restore finished!</string>
-    <string name="settings_restore_failed">Failed to restore</string>
+    <string name="settings_restore_failed2">Failed to restore:\n%s</string>
     <string name="group_network">Network</string>
     <string name="dns_over_http">DNS over HTTPS</string>
     <string name="dns_over_http_summary">Workaround DNS poisoning in some nations</string>