]> gitweb.fperrin.net Git - Dictionary.git/blobdiff - src/com/hughes/android/dictionary/DictionaryApplication.java
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[Dictionary.git] / src / com / hughes / android / dictionary / DictionaryApplication.java
index 1e46f4b0c1adb87b8bd25e9d1d82768dfc7a7143..1e3788be869e7d830511705e391282e1af33c0ca 100644 (file)
@@ -14,7 +14,6 @@
 
 package com.hughes.android.dictionary;
 
-import android.app.Application;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ -22,28 +21,19 @@ import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Environment;
-import android.preference.PreferenceManager;
+import android.support.v7.preference.PreferenceManager;
 import android.support.v4.view.MenuItemCompat;
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MenuItem.OnMenuItemClickListener;
-import android.view.View;
-import android.widget.Button;
-import android.widget.ImageButton;
-import android.widget.ImageView.ScaleType;
-import android.widget.LinearLayout;
-import android.widget.Toast;
 
 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
 import com.hughes.android.dictionary.engine.Dictionary;
-import com.hughes.android.dictionary.engine.Language;
-import com.hughes.android.dictionary.engine.Language.LanguageResources;
 import com.hughes.android.dictionary.engine.TransliteratorManager;
 import com.hughes.android.util.PersistentObjectCache;
 import com.hughes.util.ListUtil;
-import java.text.Collator;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -58,7 +48,10 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 
-public class DictionaryApplication extends Application {
+public enum DictionaryApplication {
+    INSTANCE;
+
+    private Context appContext;
 
     static final String LOG = "QuickDicApp";
 
@@ -70,7 +63,16 @@ public class DictionaryApplication extends Application {
     // Leave it enabled by default for correctness except
     // for my known broken development/performance test device config.
     //static public final boolean USE_COLLATOR = !android.os.Build.FINGERPRINT.equals("Samsung/cm_tassve/tassve:4.4.4/KTU84Q/20150211:userdebug/release-keys");
-    static public final boolean USE_COLLATOR = true;
+    public static final boolean USE_COLLATOR = true;
+
+    public static final TransliteratorManager.ThreadSetup threadBackground = new TransliteratorManager.ThreadSetup() {
+        @Override
+        public void onThreadStart() {
+            // THREAD_PRIORITY_BACKGROUND seemed like a good idea, but it
+            // can make Transliterator go from 20 seconds to 3 minutes (!)
+            android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_LESS_FAVORABLE);
+        }
+    };
 
     // Static, determined by resources (and locale).
     // Unordered.
@@ -78,23 +80,23 @@ public class DictionaryApplication extends Application {
 
     enum Theme {
         DEFAULT(R.style.Theme_Default,
-                R.style.Theme_Default_TokenRow_Fg,
-                R.color.theme_default_token_row_fg,
-                R.drawable.theme_default_token_row_main_bg,
-                R.drawable.theme_default_token_row_other_bg,
-                R.drawable.theme_default_normal_row_bg),
+        R.style.Theme_Default_TokenRow_Fg,
+        R.color.theme_default_token_row_fg,
+        R.drawable.theme_default_token_row_main_bg,
+        R.drawable.theme_default_token_row_other_bg,
+        R.drawable.theme_default_normal_row_bg),
 
         LIGHT(R.style.Theme_Light,
-                R.style.Theme_Light_TokenRow_Fg,
-                R.color.theme_light_token_row_fg,
-                R.drawable.theme_light_token_row_main_bg,
-                R.drawable.theme_light_token_row_other_bg,
-                R.drawable.theme_light_normal_row_bg);
+        R.style.Theme_Light_TokenRow_Fg,
+        R.color.theme_light_token_row_fg,
+        R.drawable.theme_light_token_row_main_bg,
+        R.drawable.theme_light_token_row_other_bg,
+        R.drawable.theme_light_normal_row_bg);
 
         Theme(final int themeId, final int tokenRowFg,
-              final int tokenRowFgColor,
-              final int tokenRowMainBg, final int tokenRowOtherBg,
-              final int normalRowBg) {
+        final int tokenRowFgColor,
+        final int tokenRowMainBg, final int tokenRowOtherBg,
+        final int normalRowBg) {
             this.themeId = themeId;
             this.tokenRowFg = tokenRowFg;
             this.tokenRowFgColor = tokenRowFgColor;
@@ -111,183 +113,18 @@ public class DictionaryApplication extends Application {
         final int normalRowBg;
     }
 
-    // Useful:
-    // http://www.loc.gov/standards/iso639-2/php/code_list.php
-    public static final Map<String, LanguageResources> isoCodeToResources = new HashMap<String, LanguageResources>();
-    static {
-        isoCodeToResources.put("AF", new LanguageResources("Afrikaans", R.string.AF,
-                R.drawable.flag_of_south_africa));
-        isoCodeToResources.put("SQ", new LanguageResources("Albanian", R.string.SQ,
-                R.drawable.flag_of_albania));
-        isoCodeToResources.put("AR",
-                new LanguageResources("Arabic", R.string.AR, R.drawable.arabic));
-        isoCodeToResources.put("HY", new LanguageResources("Armenian", R.string.HY,
-                R.drawable.flag_of_armenia));
-        isoCodeToResources.put("BE", new LanguageResources("Belarusian", R.string.BE,
-                R.drawable.flag_of_belarus));
-        isoCodeToResources.put("BN", new LanguageResources("Bengali", R.string.BN));
-        isoCodeToResources.put("BS", new LanguageResources("Bosnian", R.string.BS,
-                R.drawable.flag_of_bosnia_and_herzegovina));
-        isoCodeToResources.put("BG", new LanguageResources("Bulgarian", R.string.BG,
-                R.drawable.flag_of_bulgaria));
-        isoCodeToResources.put("MY", new LanguageResources("Burmese", R.string.MY,
-                R.drawable.flag_of_myanmar));
-        isoCodeToResources.put("ZH", new LanguageResources("Chinese", R.string.ZH,
-                R.drawable.flag_of_the_peoples_republic_of_china));
-        isoCodeToResources.put("cmn", new LanguageResources("Mandarin", R.string.cmn,
-                R.drawable.flag_of_the_peoples_republic_of_china));
-        isoCodeToResources.put("yue", new LanguageResources("Cantonese", R.string.yue,
-                R.drawable.flag_of_hong_kong));
-        isoCodeToResources.put("CA", new LanguageResources("Catalan", R.string.CA));
-        isoCodeToResources.put("HR", new LanguageResources("Croatian", R.string.HR,
-                R.drawable.flag_of_croatia));
-        isoCodeToResources.put("CS", new LanguageResources("Czech", R.string.CS,
-                R.drawable.flag_of_the_czech_republic));
-        isoCodeToResources.put("DA", new LanguageResources("Danish", R.string.DA,
-                R.drawable.flag_of_denmark));
-        isoCodeToResources.put("NL", new LanguageResources("Dutch", R.string.NL,
-                R.drawable.flag_of_the_netherlands));
-        isoCodeToResources.put("EN", new LanguageResources("English", R.string.EN,
-                R.drawable.flag_of_the_united_kingdom));
-        isoCodeToResources.put("EO", new LanguageResources("Esperanto", R.string.EO,
-                R.drawable.flag_of_esperanto));
-        isoCodeToResources.put("ET", new LanguageResources("Estonian", R.string.ET,
-                R.drawable.flag_of_estonia));
-        isoCodeToResources.put("FI", new LanguageResources("Finnish", R.string.FI,
-                R.drawable.flag_of_finland));
-        isoCodeToResources.put("FR", new LanguageResources("French", R.string.FR,
-                R.drawable.flag_of_france));
-        isoCodeToResources.put("DE", new LanguageResources("German", R.string.DE,
-                R.drawable.flag_of_germany));
-        isoCodeToResources.put("EL", new LanguageResources("Greek", R.string.EL,
-                R.drawable.flag_of_greece));
-        isoCodeToResources.put("grc", new LanguageResources("Ancient Greek", R.string.grc));
-        isoCodeToResources.put("haw", new LanguageResources("Hawaiian", R.string.haw,
-                R.drawable.flag_of_hawaii));
-        isoCodeToResources.put("HE", new LanguageResources("Hebrew", R.string.HE,
-                R.drawable.flag_of_israel));
-        isoCodeToResources.put("HI", new LanguageResources("Hindi", R.string.HI, R.drawable.hindi));
-        isoCodeToResources.put("HU", new LanguageResources("Hungarian", R.string.HU,
-                R.drawable.flag_of_hungary));
-        isoCodeToResources.put("IS", new LanguageResources("Icelandic", R.string.IS,
-                R.drawable.flag_of_iceland));
-        isoCodeToResources.put("ID", new LanguageResources("Indonesian", R.string.ID,
-                R.drawable.flag_of_indonesia));
-        isoCodeToResources.put("GA", new LanguageResources("Irish", R.string.GA,
-                R.drawable.flag_of_ireland));
-        isoCodeToResources.put("GD", new LanguageResources("Scottish Gaelic", R.string.GD,
-                R.drawable.flag_of_scotland));
-        isoCodeToResources.put("GV", new LanguageResources("Manx", R.string.GV,
-                R.drawable.flag_of_the_isle_of_man));
-        isoCodeToResources.put("IT", new LanguageResources("Italian", R.string.IT,
-                R.drawable.flag_of_italy));
-        isoCodeToResources.put("LA", new LanguageResources("Latin", R.string.LA));
-        isoCodeToResources.put("LV", new LanguageResources("Latvian", R.string.LV,
-                R.drawable.flag_of_latvia));
-        isoCodeToResources.put("LT", new LanguageResources("Lithuanian", R.string.LT,
-                R.drawable.flag_of_lithuania));
-        isoCodeToResources.put("JA", new LanguageResources("Japanese", R.string.JA,
-                R.drawable.flag_of_japan));
-        isoCodeToResources.put("KO", new LanguageResources("Korean", R.string.KO,
-                R.drawable.flag_of_south_korea));
-        isoCodeToResources.put("KU", new LanguageResources("Kurdish", R.string.KU));
-        isoCodeToResources.put("MS", new LanguageResources("Malay", R.string.MS,
-                R.drawable.flag_of_malaysia));
-        isoCodeToResources.put("MI", new LanguageResources("Maori", R.string.MI,
-                R.drawable.flag_of_new_zealand));
-        isoCodeToResources.put("MN", new LanguageResources("Mongolian", R.string.MN,
-                R.drawable.flag_of_mongolia));
-        isoCodeToResources.put("NE", new LanguageResources("Nepali", R.string.NE,
-                R.drawable.flag_of_nepal));
-        isoCodeToResources.put("NO", new LanguageResources("Norwegian", R.string.NO,
-                R.drawable.flag_of_norway));
-        isoCodeToResources.put("FA", new LanguageResources("Persian", R.string.FA,
-                R.drawable.flag_of_iran));
-        isoCodeToResources.put("PL", new LanguageResources("Polish", R.string.PL,
-                R.drawable.flag_of_poland));
-        isoCodeToResources.put("PT", new LanguageResources("Portuguese", R.string.PT,
-                R.drawable.flag_of_portugal));
-        isoCodeToResources.put("PA", new LanguageResources("Punjabi", R.string.PA));
-        isoCodeToResources.put("RO", new LanguageResources("Romanian", R.string.RO,
-                R.drawable.flag_of_romania));
-        isoCodeToResources.put("RU", new LanguageResources("Russian", R.string.RU,
-                R.drawable.flag_of_russia));
-        isoCodeToResources.put("SA", new LanguageResources("Sanskrit", R.string.SA));
-        isoCodeToResources.put("SR", new LanguageResources("Serbian", R.string.SR,
-                R.drawable.flag_of_serbia));
-        isoCodeToResources.put("SK", new LanguageResources("Slovak", R.string.SK,
-                R.drawable.flag_of_slovakia));
-        isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
-                R.drawable.flag_of_slovenia));
-        isoCodeToResources.put("SO", new LanguageResources("Somali", R.string.SO,
-                R.drawable.flag_of_somalia));
-        isoCodeToResources.put("ES", new LanguageResources("Spanish", R.string.ES,
-                R.drawable.flag_of_spain));
-        isoCodeToResources.put("SW", new LanguageResources("Swahili", R.string.SW));
-        isoCodeToResources.put("SV", new LanguageResources("Swedish", R.string.SV,
-                R.drawable.flag_of_sweden));
-        isoCodeToResources.put("TL", new LanguageResources("Tagalog", R.string.TL));
-        isoCodeToResources.put("TG", new LanguageResources("Tajik", R.string.TG,
-                R.drawable.flag_of_tajikistan));
-        isoCodeToResources.put("TH", new LanguageResources("Thai", R.string.TH,
-                R.drawable.flag_of_thailand));
-        isoCodeToResources.put("BO", new LanguageResources("Tibetan", R.string.BO));
-        isoCodeToResources.put("TR", new LanguageResources("Turkish", R.string.TR,
-                R.drawable.flag_of_turkey));
-        isoCodeToResources.put("UK", new LanguageResources("Ukrainian", R.string.UK,
-                R.drawable.flag_of_ukraine));
-        isoCodeToResources.put("UR", new LanguageResources("Urdu", R.string.UR));
-        isoCodeToResources.put("VI", new LanguageResources("Vietnamese", R.string.VI,
-                R.drawable.flag_of_vietnam));
-        isoCodeToResources.put("CI", new LanguageResources("Welsh", R.string.CI,
-                R.drawable.flag_of_wales_2));
-        isoCodeToResources.put("YI", new LanguageResources("Yiddish", R.string.YI));
-        isoCodeToResources.put("ZU", new LanguageResources("Zulu", R.string.ZU));
-        isoCodeToResources.put("AZ", new LanguageResources("Azeri", R.string.AZ,
-                R.drawable.flag_of_azerbaijan));
-        isoCodeToResources.put("EU", new LanguageResources("Basque", R.string.EU,
-                R.drawable.flag_of_the_basque_country));
-        isoCodeToResources.put("BR", new LanguageResources("Breton", R.string.BR));
-        isoCodeToResources.put("MR", new LanguageResources("Marathi", R.string.MR));
-        isoCodeToResources.put("FO", new LanguageResources("Faroese", R.string.FO));
-        isoCodeToResources.put("GL", new LanguageResources("Galician", R.string.GL,
-                R.drawable.flag_of_galicia));
-        isoCodeToResources.put("KA", new LanguageResources("Georgian", R.string.KA,
-                R.drawable.flag_of_georgia));
-        isoCodeToResources.put("HT", new LanguageResources("Haitian Creole", R.string.HT,
-                R.drawable.flag_of_haiti));
-        isoCodeToResources.put("LB", new LanguageResources("Luxembourgish", R.string.LB,
-                R.drawable.flag_of_luxembourg));
-        isoCodeToResources.put("MK", new LanguageResources("Macedonian", R.string.MK,
-                R.drawable.flag_of_macedonia));
-        isoCodeToResources.put("LO", new LanguageResources("Lao", R.string.LO,
-                R.drawable.flag_of_laos));
-        isoCodeToResources.put("ML", new LanguageResources("Malayalam", R.string.ML));
-        isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL,
-                R.drawable.flag_of_slovenia));
-        isoCodeToResources.put("TA", new LanguageResources("Tamil", R.string.TA));
-        isoCodeToResources.put("SH", new LanguageResources("Serbo-Croatian", R.string.SH));
-        isoCodeToResources.put("SD", new LanguageResources("Sindhi", R.string.SD));
-
-        // Hack to allow lower-case ISO codes to work:
-        for (final String isoCode : new ArrayList<String>(isoCodeToResources.keySet())) {
-            isoCodeToResources.put(isoCode.toLowerCase(), isoCodeToResources.get(isoCode));
-        }
-
-    }
-
     public static final class DictionaryConfig implements Serializable {
         private static final long serialVersionUID = -1444177164708201263L;
         // User-ordered list, persisted, just the ones that are/have been
         // present.
-        final List<String> dictionaryFilesOrdered = new ArrayList<String>();
+        final List<String> dictionaryFilesOrdered = new ArrayList<>();
 
-        final Map<String, DictionaryInfo> uncompressedFilenameToDictionaryInfo = new HashMap<String, DictionaryInfo>();
+        final Map<String, DictionaryInfo> uncompressedFilenameToDictionaryInfo = new HashMap<>();
 
         /**
          * Sometimes a deserialized version of this data structure isn't valid.
-         * @return
          */
+        @SuppressWarnings("ConstantConditions")
         boolean isValid() {
             return uncompressedFilenameToDictionaryInfo != null && dictionaryFilesOrdered != null;
         }
@@ -295,46 +132,49 @@ public class DictionaryApplication extends Application {
 
     DictionaryConfig dictionaryConfig = null;
 
-    int languageButtonPixels = -1;
+    public int languageButtonPixels = -1;
 
     static synchronized void staticInit(final Context context) {
         if (DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO != null) {
             return;
         }
-        DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = new HashMap<String, DictionaryInfo>();
+        DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO = new HashMap<>();
         final BufferedReader reader = new BufferedReader(
-                new InputStreamReader(context.getResources().openRawResource(R.raw.dictionary_info)));
+            new InputStreamReader(context.getResources().openRawResource(R.raw.dictionary_info)));
         try {
             String line;
             while ((line = reader.readLine()) != null) {
-                if (line.startsWith("#") || line.length() == 0) {
+                if (line.length() == 0 || line.charAt(0) == '#') {
                     continue;
                 }
                 final DictionaryInfo dictionaryInfo = new DictionaryInfo(line);
                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.put(
-                        dictionaryInfo.uncompressedFilename, dictionaryInfo);
+                    dictionaryInfo.uncompressedFilename, dictionaryInfo);
             }
         } catch (IOException e) {
             Log.e(LOG, "Failed to load downloadable dictionary lists.", e);
         }
-        try { reader.close(); } catch (IOException e) {}
+        try {
+            reader.close();
+        } catch (IOException ignored) {}
     }
 
-    private File dictDir;
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
+    public synchronized void init(Context c) {
+        if (appContext != null) {
+            assert c == appContext;
+            return;
+        }
+        appContext = c;
         Log.d("QuickDic", "Application: onCreate");
-        TransliteratorManager.init(null);
-        staticInit(getApplicationContext());
+        TransliteratorManager.init(null, threadBackground);
+        staticInit(appContext);
 
         languageButtonPixels = (int) TypedValue.applyDimension(
-                TypedValue.COMPLEX_UNIT_DIP, 60, getResources().getDisplayMetrics());
+                                   TypedValue.COMPLEX_UNIT_DIP, 60, appContext.getResources().getDisplayMetrics());
 
         // Load the dictionaries we know about.
-        dictionaryConfig = PersistentObjectCache.init(getApplicationContext()).read(
-                C.DICTIONARY_CONFIGS, DictionaryConfig.class);
+        dictionaryConfig = PersistentObjectCache.init(appContext).read(
+                               C.DICTIONARY_CONFIGS, DictionaryConfig.class);
         if (dictionaryConfig == null) {
             dictionaryConfig = new DictionaryConfig();
         }
@@ -343,59 +183,61 @@ public class DictionaryApplication extends Application {
         }
 
         // Theme stuff.
-        setTheme(getSelectedTheme().themeId);
-        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+        appContext.setTheme(getSelectedTheme().themeId);
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(appContext);
         prefs.registerOnSharedPreferenceChangeListener(new OnSharedPreferenceChangeListener() {
             @Override
             public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
-                    String key) {
+                                                  String key) {
                 Log.d("QuickDic", "prefs changed: " + key);
-                if (key.equals(getString(R.string.themeKey))) {
-                    setTheme(getSelectedTheme().themeId);
+                if (key.equals(appContext.getString(R.string.themeKey))) {
+                    appContext.setTheme(getSelectedTheme().themeId);
                 }
             }
         });
     }
 
-    public void onCreateGlobalOptionsMenu(
-            final Context context, final Menu menu) {
-        final MenuItem about = menu.add(getString(R.string.about));
-        MenuItemCompat.setShowAsAction(about, MenuItem.SHOW_AS_ACTION_NEVER);
-        about.setOnMenuItemClickListener(new OnMenuItemClickListener() {
+    public static void onCreateGlobalOptionsMenu(
+        final Context context, final Menu menu) {
+        final Context c = context.getApplicationContext();
+
+        final MenuItem preferences = menu.add(c.getString(R.string.settings));
+        MenuItemCompat.setShowAsAction(preferences, MenuItem.SHOW_AS_ACTION_NEVER);
+        preferences.setOnMenuItemClickListener(new OnMenuItemClickListener() {
             public boolean onMenuItemClick(final MenuItem menuItem) {
-                final Intent intent = new Intent(getApplicationContext(), AboutActivity.class);
+                PreferenceActivity.prefsMightHaveChanged = true;
+                final Intent intent = new Intent(c, PreferenceActivity.class);
                 context.startActivity(intent);
                 return false;
             }
         });
 
-        final MenuItem help = menu.add(getString(R.string.help));
+        final MenuItem help = menu.add(c.getString(R.string.help));
         MenuItemCompat.setShowAsAction(help, MenuItem.SHOW_AS_ACTION_NEVER);
         help.setOnMenuItemClickListener(new OnMenuItemClickListener() {
             public boolean onMenuItemClick(final MenuItem menuItem) {
-                context.startActivity(HtmlDisplayActivity.getHelpLaunchIntent(getApplicationContext()));
+                context.startActivity(HtmlDisplayActivity.getHelpLaunchIntent(c));
                 return false;
             }
         });
 
-        final MenuItem preferences = menu.add(getString(R.string.settings));
-        MenuItemCompat.setShowAsAction(preferences, MenuItem.SHOW_AS_ACTION_NEVER);
-        preferences.setOnMenuItemClickListener(new OnMenuItemClickListener() {
+        final MenuItem reportIssue = menu.add(c.getString(R.string.reportIssue));
+        MenuItemCompat.setShowAsAction(reportIssue, MenuItem.SHOW_AS_ACTION_NEVER);
+        reportIssue.setOnMenuItemClickListener(new OnMenuItemClickListener() {
             public boolean onMenuItemClick(final MenuItem menuItem) {
-                PreferenceActivity.prefsMightHaveChanged = true;
-                final Intent intent = new Intent(getApplicationContext(), PreferenceActivity.class);
+                final Intent intent = new Intent(Intent.ACTION_VIEW);
+                intent.setData(Uri
+                               .parse("https://github.com/rdoeffinger/Dictionary/issues"));
                 context.startActivity(intent);
                 return false;
             }
         });
 
-        final MenuItem reportIssue = menu.add(getString(R.string.reportIssue));
-        MenuItemCompat.setShowAsAction(reportIssue, MenuItem.SHOW_AS_ACTION_NEVER);
-        reportIssue.setOnMenuItemClickListener(new OnMenuItemClickListener() {
+        final MenuItem about = menu.add(c.getString(R.string.about));
+        MenuItemCompat.setShowAsAction(about, MenuItem.SHOW_AS_ACTION_NEVER);
+        about.setOnMenuItemClickListener(new OnMenuItemClickListener() {
             public boolean onMenuItemClick(final MenuItem menuItem) {
-                final Intent intent = new Intent(Intent.ACTION_VIEW);
-                intent.setData(Uri
-                        .parse("http://github.com/rdoeffinger/Dictionary/issues"));
+                final Intent intent = new Intent(c, AboutActivity.class);
                 context.startActivity(intent);
                 return false;
             }
@@ -412,20 +254,20 @@ public class DictionaryApplication extends Application {
         }
         File efd = null;
         try {
-            efd = getApplicationContext().getExternalFilesDir(null);
-        } catch (Exception e) {
+            efd = appContext.getExternalFilesDir(null);
+        } catch (Exception ignored) {
         }
         if (efd != null) {
             efd.mkdirs();
             if (!dictDir.isDirectory() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-                getApplicationContext().getExternalFilesDirs(null);
+                appContext.getExternalFilesDirs(null);
             }
             if (efd.isDirectory() && efd.canWrite() && checkFileCreate(efd)) {
                 return efd.getAbsolutePath();
             }
         }
         if (!dictDir.isDirectory() && !dictDir.mkdirs()) {
-            return getApplicationContext().getFilesDir().getAbsolutePath();
+            return appContext.getFilesDir().getAbsolutePath();
         }
         return dir;
     }
@@ -433,33 +275,33 @@ public class DictionaryApplication extends Application {
     public synchronized File getDictDir() {
         // This metaphor doesn't work, because we've already reset
         // prefsMightHaveChanged.
-        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        String dir = prefs.getString(getString(R.string.quickdicDirectoryKey), "");
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(appContext);
+        String dir = prefs.getString(appContext.getString(R.string.quickdicDirectoryKey), "");
         if (dir.isEmpty()) {
             dir = selectDefaultDir();
         }
-        dictDir = new File(dir);
+        File dictDir = new File(dir);
         dictDir.mkdirs();
         if (!dictDir.isDirectory() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-             getApplicationContext().getExternalFilesDirs(null);
+            appContext.getExternalFilesDirs(null);
         }
         return dictDir;
     }
 
-    static public boolean checkFileCreate(File dir) {
+    public static boolean checkFileCreate(File dir) {
         boolean res = false;
         File testfile = new File(dir, "quickdic_writetest");
         try {
             testfile.delete();
             res = testfile.createNewFile() & testfile.delete();
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
         return res;
     }
 
     public File getWordListFile() {
-        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        String file = prefs.getString(getString(R.string.wordListFileKey), "");
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(appContext);
+        String file = prefs.getString(appContext.getString(R.string.wordListFileKey), "");
         if (file.isEmpty()) {
             return new File(getDictDir(), "wordList.txt");
         }
@@ -467,8 +309,8 @@ public class DictionaryApplication extends Application {
     }
 
     public Theme getSelectedTheme() {
-        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        final String theme = prefs.getString(getString(R.string.themeKey), "themeLight");
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(appContext);
+        final String theme = prefs.getString(appContext.getString(R.string.themeKey), "themeLight");
         if (theme.equals("themeLight")) {
             return Theme.LIGHT;
         } else {
@@ -482,21 +324,13 @@ public class DictionaryApplication extends Application {
 
     String defaultLangISO2 = Locale.getDefault().getLanguage().toLowerCase();
     String defaultLangName = null;
-    final Map<String, String> fileToNameCache = new HashMap<String, String>();
-
-    public String isoCodeToLocalizedLanguageName(final String isoCode) {
-        final Language.LanguageResources languageResources = isoCodeToResources
-                .get(isoCode);
-        final String lang = languageResources != null ? getApplicationContext().getString(
-                languageResources.nameId) : isoCode;
-        return lang;
-    }
+    final Map<String, String> fileToNameCache = new HashMap<>();
 
     public List<IndexInfo> sortedIndexInfos(List<IndexInfo> indexInfos) {
         // Hack to put the default locale first in the name.
         if (indexInfos.size() > 1 &&
                 indexInfos.get(1).shortName.toLowerCase().equals(defaultLangISO2)) {
-            List<IndexInfo> result = new ArrayList<DictionaryInfo.IndexInfo>(indexInfos);
+            List<IndexInfo> result = new ArrayList<>(indexInfos);
             ListUtil.swap(result, 0, 1);
             return result;
         }
@@ -511,7 +345,7 @@ public class DictionaryApplication extends Application {
             defaultLangName = null;
         }
         if (defaultLangName == null) {
-            defaultLangName = isoCodeToLocalizedLanguageName(defaultLangISO2);
+            defaultLangName = IsoUtils.INSTANCE.isoCodeToLocalizedLanguageName(appContext, defaultLangISO2);
         }
 
         String name = fileToNameCache.get(uncompressedFilename);
@@ -520,7 +354,7 @@ public class DictionaryApplication extends Application {
         }
 
         final DictionaryInfo dictionaryInfo = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
-                .get(uncompressedFilename);
+                                              .get(uncompressedFilename);
         if (dictionaryInfo != null) {
             final StringBuilder nameBuilder = new StringBuilder();
 
@@ -530,7 +364,7 @@ public class DictionaryApplication extends Application {
                     nameBuilder.append("-");
                 }
                 nameBuilder
-                        .append(isoCodeToLocalizedLanguageName(sortedIndexInfos.get(i).shortName));
+                .append(IsoUtils.INSTANCE.isoCodeToLocalizedLanguageName(appContext, sortedIndexInfos.get(i).shortName));
             }
             name = nameBuilder.toString();
         } else {
@@ -540,25 +374,6 @@ public class DictionaryApplication extends Application {
         return name;
     }
 
-    public View createButton(final Context context, final DictionaryInfo dictionaryInfo,
-            final IndexInfo indexInfo) {
-        LanguageResources languageResources = isoCodeToResources.get(indexInfo.shortName);
-        View result;
-
-        if (languageResources == null || languageResources.flagId <= 0) {
-            Button button = new Button(context);
-            button.setText(indexInfo.shortName);
-            result = button;
-        } else {
-            ImageButton button = new ImageButton(context);
-            button.setImageResource(languageResources.flagId);
-            button.setScaleType(ScaleType.FIT_CENTER);
-            result = button;
-        }
-        result.setLayoutParams(new LinearLayout.LayoutParams(languageButtonPixels, languageButtonPixels * 2 / 3));
-        return result;
-    }
-
     public synchronized void moveDictionaryToTop(final DictionaryInfo dictionaryInfo) {
         dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename);
         dictionaryConfig.dictionaryFilesOrdered.add(0, dictionaryInfo.uncompressedFilename);
@@ -574,12 +389,12 @@ public class DictionaryApplication extends Application {
         while (dictionaryConfig.dictionaryFilesOrdered.remove(dictionaryInfo.uncompressedFilename)) {
         }
         dictionaryConfig.uncompressedFilenameToDictionaryInfo
-                .remove(dictionaryInfo.uncompressedFilename);
+        .remove(dictionaryInfo.uncompressedFilename);
         getPath(dictionaryInfo.uncompressedFilename).delete();
         PersistentObjectCache.getInstance().write(C.DICTIONARY_CONFIGS, dictionaryConfig);
     }
 
-    final Comparator collator = USE_COLLATOR ? Collator.getInstance() : String.CASE_INSENSITIVE_ORDER;
+    final Comparator<Object> collator = USE_COLLATOR ? CollatorWrapper.getInstance() : null;
     final Comparator<String> uncompressedFilenameComparator = new Comparator<String>() {
         @Override
         public int compare(String uncompressedFilename1, String uncompressedFilename2) {
@@ -594,7 +409,7 @@ public class DictionaryApplication extends Application {
                     return 1;
                 }
             }
-            return collator.compare(name1, name2);
+            return collator != null ? collator.compare(name1, name2) : name1.compareToIgnoreCase(name2);
         }
     };
     final Comparator<DictionaryInfo> dictionaryInfoComparator = new Comparator<DictionaryInfo>() {
@@ -616,7 +431,7 @@ public class DictionaryApplication extends Application {
                 final DictionaryConfig oldDictionaryConfig = new DictionaryConfig();
                 synchronized (DictionaryApplication.this) {
                     oldDictionaryConfig.dictionaryFilesOrdered
-                            .addAll(dictionaryConfig.dictionaryFilesOrdered);
+                    .addAll(dictionaryConfig.dictionaryFilesOrdered);
                 }
                 final DictionaryConfig newDictionaryConfig = new DictionaryConfig();
                 for (final String uncompressedFilename : oldDictionaryConfig.dictionaryFilesOrdered) {
@@ -625,14 +440,14 @@ public class DictionaryApplication extends Application {
                     if (dictionaryInfo.isValid() || dictFile.exists()) {
                         newDictionaryConfig.dictionaryFilesOrdered.add(uncompressedFilename);
                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
-                                uncompressedFilename, dictionaryInfo);
+                            uncompressedFilename, dictionaryInfo);
                     }
                 }
 
                 // Are there dictionaries on the device that we didn't know
                 // about already?
                 // Pick them up and put them at the end of the list.
-                final List<String> toAddSorted = new ArrayList<String>();
+                final List<String> toAddSorted = new ArrayList<>();
                 final File[] dictDirFiles = getDictDir().listFiles();
                 if (dictDirFiles != null) {
                     for (final File file : dictDirFiles) {
@@ -657,7 +472,7 @@ public class DictionaryApplication extends Application {
 
                         toAddSorted.add(file.getName());
                         newDictionaryConfig.uncompressedFilenameToDictionaryInfo.put(
-                                file.getName(), dictionaryInfo);
+                            file.getName(), dictionaryInfo);
                     }
                 } else {
                     Log.w(LOG, "dictDir is not a directory: " + getDictDir().getPath());
@@ -669,7 +484,7 @@ public class DictionaryApplication extends Application {
 
                 try {
                     PersistentObjectCache.getInstance()
-                                 .write(C.DICTIONARY_CONFIGS, newDictionaryConfig);
+                    .write(C.DICTIONARY_CONFIGS, newDictionaryConfig);
                 } catch (Exception e) {
                     Log.e(LOG, "Failed persisting dictionary configs", e);
                 }
@@ -687,13 +502,13 @@ public class DictionaryApplication extends Application {
         }).start();
     }
 
-    public boolean matchesFilters(final DictionaryInfo dictionaryInfo, final String[] filters) {
+    private boolean matchesFilters(final DictionaryInfo dictionaryInfo, final String[] filters) {
         if (filters == null) {
             return true;
         }
         for (final String filter : filters) {
             if (!getDictionaryName(dictionaryInfo.uncompressedFilename).toLowerCase().contains(
-                    filter)) {
+                        filter)) {
                 return false;
             }
         }
@@ -701,11 +516,11 @@ public class DictionaryApplication extends Application {
     }
 
     public synchronized List<DictionaryInfo> getDictionariesOnDevice(String[] filters) {
-        final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
+        final List<DictionaryInfo> result = new ArrayList<>(
                 dictionaryConfig.dictionaryFilesOrdered.size());
         for (final String uncompressedFilename : dictionaryConfig.dictionaryFilesOrdered) {
             final DictionaryInfo dictionaryInfo = dictionaryConfig.uncompressedFilenameToDictionaryInfo
-                    .get(uncompressedFilename);
+                                                  .get(uncompressedFilename);
             if (dictionaryInfo != null && matchesFilters(dictionaryInfo, filters)) {
                 result.add(dictionaryInfo);
             }
@@ -714,10 +529,10 @@ public class DictionaryApplication extends Application {
     }
 
     public List<DictionaryInfo> getDownloadableDictionaries(String[] filters) {
-        final List<DictionaryInfo> result = new ArrayList<DictionaryInfo>(
+        final List<DictionaryInfo> result = new ArrayList<>(
                 dictionaryConfig.dictionaryFilesOrdered.size());
 
-        final Map<String, DictionaryInfo> remaining = new HashMap<String, DictionaryInfo>(
+        final Map<String, DictionaryInfo> remaining = new HashMap<>(
                 DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO);
         remaining.keySet().removeAll(dictionaryConfig.dictionaryFilesOrdered);
         for (final DictionaryInfo dictionaryInfo : remaining.values()) {
@@ -729,22 +544,16 @@ public class DictionaryApplication extends Application {
         return result;
     }
 
-    public synchronized boolean isDictionaryOnDevice(String uncompressedFilename) {
-        return dictionaryConfig.uncompressedFilenameToDictionaryInfo.get(uncompressedFilename) != null;
-    }
-
     public boolean updateAvailable(final DictionaryInfo dictionaryInfo) {
         final DictionaryInfo downloadable =
-                DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.get(
-                        dictionaryInfo.uncompressedFilename);
+            DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.get(
+                dictionaryInfo.uncompressedFilename);
         return downloadable != null &&
-                downloadable.creationMillis > dictionaryInfo.creationMillis;
+               downloadable.creationMillis > dictionaryInfo.creationMillis;
     }
 
     public DictionaryInfo getDownloadable(final String uncompressedFilename) {
-        final DictionaryInfo downloadable = DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO
-                .get(uncompressedFilename);
-        return downloadable;
+        return DOWNLOADABLE_UNCOMPRESSED_FILENAME_NAME_TO_DICTIONARY_INFO.get(uncompressedFilename);
     }
 
 }