Show reset to system language in system language

app/src/main/java/eu/faircode/email/FragmentOptionsMisc.java

@@ -28,6 +28,7 @@ import android.content.SharedPreferences;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PermissionInfo;
+import android.content.res.Resources;
 import android.database.sqlite.SQLiteDatabaseCorruptException;
 import android.graphics.Paint;
 import android.graphics.Typeface;
@@ -514,10 +515,11 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         ibResetLanguage.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                new AlertDialog.Builder(view.getContext())
+                Locale system = Resources.getSystem().getConfiguration().locale;
+                new AlertDialog.Builder(v.getContext())
                         .setIcon(R.drawable.twotone_help_24)
-                        .setTitle(R.string.title_advanced_language_system)
-                        .setMessage(R.string.title_advanced_english_hint)
+                        .setTitle(system.getDisplayName(system))
+                        .setMessage(Helper.getString(v.getContext(), system, R.string.title_advanced_english_hint))
                         .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                             @Override
                             public void onClick(DialogInterface dialog, int which) {

app/src/main/java/eu/faircode/email/Helper.java

@@ -1538,9 +1538,12 @@ public class Helper {
     static String getString(Context context, String language, int resid, Object... formatArgs) {
         if (language == null)
             return context.getString(resid, formatArgs);
+        return getString(context, new Locale(language), resid, formatArgs);
+    }
 
+    static String getString(Context context, Locale locale, int resid, Object... formatArgs) {
         Configuration configuration = new Configuration(context.getResources().getConfiguration());
-        configuration.setLocale(new Locale(language));
+        configuration.setLocale(locale);
         Resources res = context.createConfigurationContext(configuration).getResources();
         return res.getString(resid, formatArgs);
     }