feat: Allow changing languages (#1488)

Co-authored-by: validcube <pun.butrach@gmail.com>

lib/services/manager_api.dart

@@ -4,11 +4,11 @@ import 'package:device_apps/device_apps.dart';
 import 'package:device_info_plus/device_info_plus.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_i18n/widgets/I18nText.dart';
 import 'package:injectable/injectable.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:revanced_manager/app/app.locator.dart';
+import 'package:revanced_manager/gen/strings.g.dart';
 import 'package:revanced_manager/models/patch.dart';
 import 'package:revanced_manager/models/patched_application.dart';
 import 'package:revanced_manager/services/github_api.dart';
@@ -58,8 +58,7 @@ class ManagerAPI {
   }
 
   bool isDefaultIntegrationsRepo() {
-    return getIntegrationsRepo().toLowerCase() ==
-        defaultIntegrationsRepo;
+    return getIntegrationsRepo().toLowerCase() == defaultIntegrationsRepo;
   }
 
   Future<void> initialize() async {
@@ -99,7 +98,7 @@ class ManagerAPI {
     }
     await _revancedAPI.clearAllCache();
     await _prefs.setString('apiUrl', url);
-    _toast.showBottom('settingsView.restartAppForChanges');
+    _toast.showBottom(t.settingsView.restartAppForChanges);
   }
 
   String getRepoUrl() {
@@ -302,6 +301,14 @@ class ManagerAPI {
     return _prefs.getString('keystorePassword') ?? defaultKeystorePassword;
   }
 
+  String getLocale() {
+    return _prefs.getString('locale') ?? 'en';
+  }
+
+  Future<void> setLocale(String value) async {
+    await _prefs.setString('locale', value);
+  }
+
   Future<void> deleteTempFolder() async {
     final Directory dir = Directory('/data/local/tmp/revanced-manager');
     if (await dir.exists()) {
@@ -615,7 +622,7 @@ class ManagerAPI {
       builder: (context) => PopScope(
         canPop: false,
         child: AlertDialog(
-          title: I18nText('warning'),
+          title: Text(t.warning),
           content: ValueListenableBuilder(
             valueListenable: noShow,
             builder: (context, value, child) {
@@ -623,22 +630,19 @@ class ManagerAPI {
                 mainAxisSize: MainAxisSize.min,
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
-                  I18nText(
-                    'patchItem.patchesChangeWarningDialogText',
-                    child: const Text(
-                      '',
-                      style: TextStyle(
-                        fontSize: 16,
-                        fontWeight: FontWeight.w500,
-                      ),
+                  Text(
+                    t.patchItem.patchesChangeWarningDialogText,
+                    style: const TextStyle(
+                      fontSize: 16,
+                      fontWeight: FontWeight.w500,
                     ),
                   ),
                   const SizedBox(height: 8),
                   HapticCheckboxListTile(
                     value: value,
                     contentPadding: EdgeInsets.zero,
-                    title: I18nText(
-                      'noShowAgain',
+                    title: Text(
+                      t.noShowAgain,
                     ),
                     onChanged: (selected) {
                       noShow.value = selected!;
@@ -654,7 +658,7 @@ class ManagerAPI {
                 setPatchesChangeWarning(noShow.value);
                 Navigator.of(context).pop();
               },
-              child: I18nText('okButton'),
+              child: Text(t.okButton),
             ),
           ],
         ),

lib/services/patcher_api.dart

@@ -6,10 +6,10 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_file_dialog/flutter_file_dialog.dart';
-import 'package:flutter_i18n/widgets/I18nText.dart';
 import 'package:injectable/injectable.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:revanced_manager/app/app.locator.dart';
+import 'package:revanced_manager/gen/strings.g.dart';
 import 'package:revanced_manager/models/patch.dart';
 import 'package:revanced_manager/models/patched_application.dart';
 import 'package:revanced_manager/services/manager_api.dart';
@@ -304,18 +304,19 @@ class PatcherAPI {
       context: _managerAPI.ctx!,
       builder: (context) => AlertDialog(
         backgroundColor: Theme.of(context).colorScheme.secondaryContainer,
-        title: I18nText('installErrorDialog.$statusValue'),
+        title: Text(t['installErrorDialog.$statusValue']),
         content: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           mainAxisSize: MainAxisSize.min,
           children: [
-            I18nText(
-              'installErrorDialog.${statusValue}_description',
-              translationParams: statusCode == 2
-                  ? {
-                      'packageName': status['otherPackageName'],
-                    }
-                  : null,
+            Text(
+              t['installErrorDialog.${statusValue}_description'](
+                packageName: statusCode == 2
+                    ? {
+                        'packageName': status['otherPackageName'],
+                      }
+                    : null,
+              ),
             ),
           ],
         ),
@@ -325,7 +326,7 @@ class PatcherAPI {
                   onPressed: () async {
                     Navigator.pop(context);
                   },
-                  child: I18nText('okButton'),
+                  child: Text(t.okButton),
                 ),
               ]
             : <Widget>[
@@ -334,14 +335,14 @@ class PatcherAPI {
                     onPressed: () {
                       Navigator.pop(context);
                     },
-                    child: I18nText('cancelButton'),
+                    child: Text(t.cancelButton),
                   )
                 else
                   TextButton(
                     onPressed: () {
                       Navigator.pop(context);
                     },
-                    child: I18nText('cancelButton'),
+                    child: Text(t.cancelButton),
                   ),
                 if (isFixable)
                   FilledButton(
@@ -355,7 +356,7 @@ class PatcherAPI {
                         Navigator.pop(context);
                       }
                     },
-                    child: I18nText('okButton'),
+                    child: Text(t.okButton),
                   ),
               ],
       ),

lib/services/toast.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_i18n/flutter_i18n.dart';
 import 'package:fluttertoast/fluttertoast.dart' as t;
 
 class Toast {
@@ -12,10 +11,7 @@ class Toast {
 
   void show(String text) {
     t.Fluttertoast.showToast(
-      msg: FlutterI18n.translate(
-        _fToast.context!,
-        text,
-      ),
+      msg: text,
       toastLength: t.Toast.LENGTH_LONG,
       gravity: t.ToastGravity.CENTER,
     );
@@ -23,10 +19,7 @@ class Toast {
 
   void showBottom(String text) {
     t.Fluttertoast.showToast(
-      msg: FlutterI18n.translate(
-        _fToast.context!,
-        text,
-      ),
+      msg: text,
       toastLength: t.Toast.LENGTH_LONG,
       gravity: t.ToastGravity.BOTTOM,
     );