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#6: Made app localizable via settings menu. Bugfix: allow utf8 in abo…
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107 changes: 107 additions & 0 deletions
107
app/src/main/java/de/k3b/android/widget/LocalizedActivity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| /* | ||
| * Copyright (c) 2015-2017 by k3b. | ||
| * | ||
| * This file is part of AndroFotoFinder and of ToGoZip. | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | ||
| * FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| * for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License along with | ||
| * this program. If not, see <http://www.gnu.org/licenses/> | ||
| */ | ||
|
|
||
| package de.k3b.android.widget; | ||
|
|
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| import android.app.Activity; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.content.SharedPreferences; | ||
| import android.content.res.Configuration; | ||
| import android.content.res.Resources; | ||
| import android.os.Build; | ||
| import android.os.Bundle; | ||
| import android.preference.PreferenceManager; | ||
|
|
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| import java.util.Locale; | ||
|
|
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| import de.k3b.android.toGoZip.Global; | ||
|
|
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| /** | ||
| * An activity that can change the locale (language) of its content. | ||
| * | ||
| * Inspired by http://stackoverflow.com/questions/13181847/change-the-locale-at-runtime | ||
| * | ||
| * Created by k3b on 07.01.2016. | ||
| */ | ||
| public abstract class LocalizedActivity extends Activity { | ||
| /** if myLocale != Locale.Default : activity must be recreated in on resume */ | ||
| private Locale myLocale = null; | ||
|
|
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| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| fixLocale(this); | ||
| super.onCreate(savedInstanceState); | ||
| } | ||
|
|
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| @Override | ||
| protected void onResume() { | ||
| super.onResume(); | ||
|
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| // Locale has changed by other Activity ? | ||
| if ((myLocale != null) && (myLocale.getLanguage() != Locale.getDefault().getLanguage())) { | ||
| myLocale = null; | ||
| recreate(LocalizedActivity.this); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Set Activity-s locale to SharedPreferences-setting. | ||
| * Must be called before | ||
| */ | ||
| public static void fixLocale(Context context) | ||
| { | ||
| final SharedPreferences prefs = PreferenceManager | ||
| .getDefaultSharedPreferences(context); | ||
| String language = prefs.getString(Global.PREF_KEY_USER_LOCALE, ""); | ||
| Locale locale = Global.systemLocale; // in case that setting=="use android-locale" | ||
| if ((language != null) && (language.length() > 0)) { | ||
| locale = new Locale(language); // overwrite "use android-locale" | ||
| } | ||
|
|
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| if (locale != null) { | ||
| Locale.setDefault(locale); | ||
| Configuration config = new Configuration(); | ||
| config.locale = locale; | ||
| Resources resources = context.getResources(); | ||
| resources.updateConfiguration(config, resources.getDisplayMetrics()); | ||
| // recreate(); | ||
|
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| if (context instanceof LocalizedActivity) { | ||
| ((LocalizedActivity) context).myLocale = locale; | ||
| } | ||
| } | ||
| } | ||
|
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| /** force all open activity to recreate */ | ||
| public static void recreate(Activity child) { | ||
| Activity context = child; | ||
| while (context != null) { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { | ||
| context.recreate(); | ||
| } else { | ||
| // https://stackoverflow.com/questions/11495130/android-recreate-functions-in-api-7 | ||
| context.startActivity(new Intent(context, context.getClass())); | ||
| context.finish(); | ||
| } | ||
| context = context.getParent(); | ||
| } | ||
| } | ||
|
|
||
| } |
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