Optimization

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

@@ -34,6 +34,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.os.Debug;
 import android.provider.Settings;
+import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -76,7 +77,7 @@ import io.requery.android.database.sqlite.SQLiteDatabase;
 
 public class FragmentOptionsMisc extends FragmentBase implements SharedPreferences.OnSharedPreferenceChangeListener {
     private boolean resumed = false;
-    private List<String> languages;
+    private List<Pair<String, String>> languages = new ArrayList<>();
 
     private SwitchCompat swExternalSearch;
     private SwitchCompat swShortcuts;
@@ -136,13 +137,13 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        languages = new ArrayList<>(Arrays.asList(getResources().getAssets().getLocales()));
-        Collections.sort(languages, new Comparator<String>() {
+        for (String tag : getResources().getAssets().getLocales())
+            languages.add(new Pair<>(tag, Locale.forLanguageTag(tag).getDisplayName()));
+
+        Collections.sort(languages, new Comparator<Pair<String, String>>() {
             @Override
-            public int compare(String lang1, String lang2) {
-                String display1 = Locale.forLanguageTag(lang1).getDisplayLanguage();
-                String display2 = Locale.forLanguageTag(lang2).getDisplayLanguage();
-                return display1.compareTo(display2);
+            public int compare(Pair<String, String> l1, Pair<String, String> l2) {
+                return l1.second.compareTo(l2.second);
             }
         });
     }
@@ -258,7 +259,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
                 if (position == 0)
                     onNothingSelected(adapterView);
                 else {
-                    String tag = languages.get(position - 1);
+                    String tag = languages.get(position - 1).first;
                     prefs.edit().putString("language", tag).commit(); // apply won't work here
                 }
             }
@@ -721,10 +722,9 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         List<String> display = new ArrayList<>();
         display.add(getString(R.string.title_advanced_language_system));
         for (int pos = 0; pos < languages.size(); pos++) {
-            String lang = languages.get(pos);
-            Locale loc = Locale.forLanguageTag(lang);
-            display.add(loc.getDisplayName());
-            if (lang.equals(language))
+            Pair<String, String> lang = languages.get(pos);
+            display.add(lang.second);
+            if (lang.first.equals(language))
                 selected = pos + 1;
         }