changed the way to change language, now is «NewPipe's language» selector

app/src/main/java/org/schabi/newpipe/MainActivity.java

@@ -56,7 +56,6 @@ import androidx.fragment.app.FragmentManager;
 import com.google.android.material.navigation.NavigationView;
 
 import org.schabi.newpipe.extractor.NewPipe;
-import org.schabi.newpipe.extractor.ServiceList;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.services.peertube.PeertubeInstance;
@@ -67,7 +66,6 @@ import org.schabi.newpipe.fragments.list.search.SearchFragment;
 import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.KioskTranslator;
-import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.PeertubeHelper;
 import org.schabi.newpipe.util.PermissionHelper;
@@ -78,8 +76,10 @@ import org.schabi.newpipe.util.ThemeHelper;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
 
 import static org.schabi.newpipe.util.Localization.changeAppLanguage;
+import static org.schabi.newpipe.util.Localization.getAppLanguage;
 
 public class MainActivity extends AppCompatActivity {
     private static final String TAG = "MainActivity";
@@ -116,10 +116,9 @@ public class MainActivity extends AppCompatActivity {
         if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
             TLSSocketFactoryCompat.setAsDefault();
         }
-
         ThemeHelper.setTheme(this, ServiceHelper.getSelectedServiceId(this));
 
-        changeAppLanguage(Localization.getPreferredLocale(getApplicationContext()), getResources());
+        changeAppLanguage(getAppLanguage(getApplicationContext()), getResources());
 
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
@@ -424,6 +423,7 @@ public class MainActivity extends AppCompatActivity {
 
     @Override
     protected void onResume() {
+        changeAppLanguage(getAppLanguage(getApplicationContext()), getResources());
         super.onResume();
 
         // close drawer on return, and don't show animation, so its looks like the drawer isn't open

app/src/main/java/org/schabi/newpipe/about/AboutActivity.java

@@ -25,6 +25,11 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.ThemeHelper;
 
+import java.util.Locale;
+
+import static org.schabi.newpipe.util.Localization.changeAppLanguage;
+import static org.schabi.newpipe.util.Localization.getAppLanguage;
+
 public class AboutActivity extends AppCompatActivity {
 
     /**
@@ -62,6 +67,7 @@ public class AboutActivity extends AppCompatActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        changeAppLanguage(getAppLanguage(getApplicationContext()), getResources());
         super.onCreate(savedInstanceState);
         ThemeHelper.setTheme(this);
 

app/src/main/java/org/schabi/newpipe/download/DownloadActivity.java

@@ -15,9 +15,14 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.settings.SettingsActivity;
 import org.schabi.newpipe.util.ThemeHelper;
 
+import java.util.Locale;
+
 import us.shandian.giga.service.DownloadManagerService;
 import us.shandian.giga.ui.fragment.MissionsFragment;
 
+import static org.schabi.newpipe.util.Localization.changeAppLanguage;
+import static org.schabi.newpipe.util.Localization.getAppLanguage;
+
 public class DownloadActivity extends AppCompatActivity {
 
     private static final String MISSIONS_FRAGMENT_TAG = "fragment_tag";
@@ -29,6 +34,7 @@ public class DownloadActivity extends AppCompatActivity {
         i.setClass(this, DownloadManagerService.class);
         startService(i);
 
+        changeAppLanguage(getAppLanguage(getApplicationContext()), getResources());
         ThemeHelper.setTheme(this);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_downloader);

app/src/main/java/org/schabi/newpipe/settings/ContentSettingsFragment.java

@@ -56,6 +56,7 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
 
     private Localization initialSelectedLocalization;
     private ContentCountry initialSelectedContentCountry;
+    private String initialLanguage;
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
@@ -64,6 +65,7 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
 
         initialSelectedLocalization = org.schabi.newpipe.util.Localization.getPreferredLocalization(requireContext());
         initialSelectedContentCountry = org.schabi.newpipe.util.Localization.getPreferredContentCountry(requireContext());
+        initialLanguage = androidx.preference.PreferenceManager.getDefaultSharedPreferences(getContext()).getString("newpipes_language_key", "en");
     }
 
     @Override
@@ -125,9 +127,10 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
                 .getPreferredLocalization(requireContext());
         final ContentCountry selectedContentCountry = org.schabi.newpipe.util.Localization
                 .getPreferredContentCountry(requireContext());
+        final String selectedLanguage = androidx.preference.PreferenceManager.getDefaultSharedPreferences(getContext()).getString("newpipes_language_key", "en");
 
         if (!selectedLocalization.equals(initialSelectedLocalization)
-                || !selectedContentCountry.equals(initialSelectedContentCountry)) {
+                || !selectedContentCountry.equals(initialSelectedContentCountry) || !selectedLanguage.equals(initialLanguage)) {
             Toast.makeText(requireContext(), R.string.localization_changes_requires_app_restart, Toast.LENGTH_LONG).show();
 
             NewPipe.setupLocalization(selectedLocalization, selectedContentCountry);

app/src/main/java/org/schabi/newpipe/settings/SettingsActivity.java

@@ -14,6 +14,11 @@ import android.view.MenuItem;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.util.ThemeHelper;
 
+import java.util.Locale;
+
+import static org.schabi.newpipe.util.Localization.changeAppLanguage;
+import static org.schabi.newpipe.util.Localization.getAppLanguage;
+
 
 /*
  * Created by Christian Schabesberger on 31.08.15.
@@ -44,7 +49,7 @@ public class SettingsActivity extends AppCompatActivity implements BasePreferenc
     @Override
     protected void onCreate(Bundle savedInstanceBundle) {
         setTheme(ThemeHelper.getSettingsThemeStyle(this));
-
+        changeAppLanguage(getAppLanguage(getApplicationContext()), getResources());
         super.onCreate(savedInstanceBundle);
         setContentView(R.layout.settings_layout);
 

app/src/main/java/org/schabi/newpipe/util/Localization.java

@@ -7,6 +7,11 @@ import android.content.res.Resources;
 import android.preference.PreferenceManager;
 import android.text.TextUtils;
 import android.util.DisplayMetrics;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.PluralsRes;
+import androidx.annotation.StringRes;
 
 import org.ocpsoft.prettytime.PrettyTime;
 import org.ocpsoft.prettytime.units.Decade;
@@ -21,10 +26,6 @@ import java.util.Date;
 import java.util.List;
 import java.util.Locale;
 
-import androidx.annotation.NonNull;
-import androidx.annotation.PluralsRes;
-import androidx.annotation.StringRes;
-
 /*
  * Created by chschtsch on 12/29/15.
  *
@@ -226,4 +227,21 @@ public class Localization {
         conf.setLocale(loc);
         res.updateConfiguration(conf, dm);
     }
+
+    public static Locale getAppLanguage(Context context) {
+        SharedPreferences prefs = androidx.preference.PreferenceManager.getDefaultSharedPreferences(context);
+        String lang = prefs.getString("newpipes_language_key", "en");
+        Locale loc;
+        if (lang.equals("system")) {
+            loc = Locale.getDefault();
+        } else if (lang.matches(".*-.*")) {
+            String[] localisation = lang.split("-");
+            lang = localisation[0];
+            String country = localisation[1];
+            loc = new Locale(lang, country);
+        } else {
+            loc = new Locale(lang);
+        }
+        return loc;
+    }
 }

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

@@ -193,13 +193,13 @@
     <string name="short_billion">بی</string>
     <string name="no_subscribers">کوئی صارفین نہیں</string>
     <plurals name="subscribers">
-        <item quantity="one">% s صارف</item>
+        <item quantity="one">%s صارف</item>
-        <item quantity="other">% s صارفین</item>
+        <item quantity="other">%s صارفین</item>
     </plurals>
     <string name="no_views">کوئی مناظر نہیں</string>
     <plurals name="views">
-        <item quantity="one">% s منظر</item>
+        <item quantity="one">%s منظر</item>
-        <item quantity="other">% s مناظر</item>
+        <item quantity="other">%s مناظر</item>
     </plurals>
     <string name="no_videos">ویڈیوز دستیاب نہیں</string>
     <plurals name="videos">
@@ -388,7 +388,7 @@
     <string name="limit_data_usage_none_description">کوئی حد نہیں</string>
     <string name="limit_mobile_data_usage_title">موبائل ڈیٹا کا استعمال کرتے وقت ریذولوشن کو محدود کریں</string>
     <string name="minimize_on_exit_title">ایپ سوئچ کو کم سے کم کریں</string>
-    <string name="minimize_on_exit_summary">اہم ویڈیو پلیئر سے دوسرے ایپ میں سوئچنگ کرتے وقت کارروائی-% s</string>
+    <string name="minimize_on_exit_summary">اہم ویڈیو پلیئر سے دوسرے ایپ میں سوئچنگ کرتے وقت کارروائی-s%</string>
     <string name="minimize_on_exit_none_description">کوئی نہیں</string>
     <string name="minimize_on_exit_background_description">پس منظری پلیر میں کم کریں</string>
     <string name="minimize_on_exit_popup_description">پاپ اپ پلیر میں کم کریں</string>

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

@@ -175,6 +175,7 @@
     <string name="main_page_content_key" translatable="false">main_page_content</string>
     <string name="enable_playback_resume_key" translatable="false">enable_playback_resume</string>
     <string name="enable_playback_state_lists_key" translatable="false">enable_playback_state_lists</string>
+    <string name="newpipes_language_key" translatable="false">newpipes_language_key</string>
 
     <string name="import_data" translatable="false">import_data</string>
     <string name="export_data" translatable="false">export_data</string>
@@ -272,7 +273,6 @@
         <item>cs</item>
         <item>da</item>
         <item>de</item>
-        <item>eo</item>
         <item>et</item>
         <item>en-GB</item>
         <item>en</item>
@@ -352,7 +352,6 @@
         <item>Čeština</item>
         <item>Dansk</item>
         <item>Deutsch</item>
-        <item>Esperanto</item>
         <item>Eesti</item>
         <item>English (UK)</item>
         <item>English (US)</item>
@@ -925,6 +924,137 @@
         <item>ZW</item>
     </string-array>
 
+    <!--The next two arrays are set to change the NewPipe language-->
+    <string-array name="language_code_np" translatable="false">
+        <item>system</item>
+        <item>ar</item>
+        <item>az</item>
+        <item>ast</item>
+        <item>be</item>
+        <item>bg-bd</item>
+        <item>bn</item>
+        <item>ca</item>
+        <item>cs</item>
+        <item>da</item>
+        <item>de</item>
+        <item>el</item>
+        <item>en</item>
+        <item>eo</item>
+        <item>es</item>
+        <item>et</item>
+        <item>eu</item>
+        <item>fa</item>
+        <item>fi</item>
+        <item>fil</item>
+        <item>fr</item>
+        <item>gl</item>
+        <item>he</item>
+        <item>hi</item>
+        <item>hr</item>
+        <item>hu</item>
+        <item>hy</item>
+        <item>ia</item>
+        <item>ind</item>
+        <item>it</item>
+        <item>ja</item>
+        <item>ko</item>
+        <item>ku</item>
+        <item>lt</item>
+        <item>mk</item>
+        <item>ms</item>
+        <item>nb-no</item>
+        <item>ne</item>
+        <item>nl</item>
+        <item>nl-be</item>
+        <item>pa</item>
+        <item>pl</item>
+        <item>pr</item>
+        <item>pt</item>
+        <item>pt-br</item>
+        <item>ro</item>
+        <item>ru</item>
+        <item>sk</item>
+        <item>sl</item>
+        <item>sq</item>
+        <item>sr</item>
+        <item>sv</item>
+        <item>ta</item>
+        <item>te</item>
+        <item>th</item>
+        <item>tr</item>
+        <item>uk</item>
+        <item>ur</item>
+        <item>vi</item>
+        <item>zh</item>
+        <item>zh-hans</item>
+        <item>zh-tw</item>
+    </string-array>
+    <string-array name="language_name_np" translatable="false">
+        <item>@string/system</item>
+        <item>العربية</item>
+        <item>Azərbaycan dili</item>
+        <item>Asturianu</item>
+        <item>Беларуская</item>
+        <item>български език</item>
+        <item>বাংলা</item>
+        <item>Català</item>
+        <item>Čeština</item>
+        <item>Dansk</item>
+        <item>Deutsch</item>
+        <item>Ελληνικά</item>
+        <item>English</item>
+        <item>Esperanto</item>
+        <item>Español</item>
+        <item>Eesti keel</item>
+        <item>Euskara</item>
+        <item>فارسی</item>
+        <item>Suomen kieli</item>
+        <item>Wikang Filipino</item>
+        <item>Français</item>
+        <item>Galego</item>
+        <item>עברית</item>
+        <item>हिन्दी</item>
+        <item>Hrvatski</item>
+        <item>magyar</item>
+        <item>Հայերեն</item>
+        <item>Interlingua</item>
+        <item>Bahasa Indonesia</item>
+        <item>Italiano</item>
+        <item>日本語</item>
+        <item>한국어</item>
+        <item>کوردی</item>
+        <item>Lietuvių kalba</item>
+        <item>македонски јазик</item>
+        <item>Bahasa Melayu</item>
+        <item>Norsk bokmål</item>
+        <item>Nनेपाली</item>
+        <item>Nederlands (NL)</item>
+        <item>Nederlands (BE)</item>
+        <item>ਪੰਜਾਬੀ</item>
+        <item>Polski</item>
+        <item>Pirate Language</item>
+        <item>Português (PT)</item>
+        <item>Português (BR)</item>
+        <item>Română</item>
+        <item>русский язык</item>
+        <item>Slovenčina</item>
+        <item>Slovenščina</item>
+        <item>Shqip</item>
+        <item>Српски</item>
+        <item>Svenska</item>
+        <item>தமிழ்</item>
+        <item>తెలుగు</item>
+        <item>ไทย</item>
+        <item>Türkçe</item>
+        <item>українська мова</item>
+        <item>اردو</item>
+        <item>Tiếng Việt</item>
+        <item>官话</item>
+        <item>简化字</item>
+        <item>臺灣華語</item>
+        <!--todo : fix ia, ind, see why it crashes for ur-->
+    </string-array>
+
     <!-- Limit mobile data usage  -->
     <string name="limit_mobile_data_usage_key" translatable="false">limit_mobile_data_usage</string>
     <string name="limit_data_usage_none_key" translatable="false">limit_data_usage_none</string>
@@ -943,6 +1073,7 @@
 
     <string name="list_view_mode_key" translatable="false">list_view_mode</string>
     <string name="list_view_mode_value" translatable="false">auto</string>
+    <string name="system">System</string>
 
     <string-array name="list_view_mode_values" translatable="false">
         <item>auto</item>

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

@@ -585,5 +585,6 @@
     <string name="downloads_storage_use_saf_title">Use SAF</string>
     <string name="downloads_storage_use_saf_summary">The Storage Access Framework allows downloads to an external SD card.\nNote: some devices are not compatible</string>
     <string name="choose_instance_prompt">Choose an instance</string>
+    <string name="newpipes_language_title">NewPipe\'s language</string>
 
 </resources>

app/src/main/res/xml/content_settings.xml

@@ -3,6 +3,16 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:title="@string/content">
+
+    <ListPreference
+        app:iconSpaceReserved="false"
+        android:defaultValue="system"
+        android:entries="@array/language_name_np"
+        android:entryValues="@array/language_code_np"
+        android:key="@string/newpipes_language_key"
+        android:summary="%s"
+        android:title="@string/newpipes_language_title"/>
+
     <ListPreference
         app:iconSpaceReserved="false"
         android:defaultValue="@string/default_language_value"