1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.customlocale2;
18 
19 
20 import java.util.Locale;
21 
22 import android.app.ActivityManager;
23 import android.app.IActivityManager;
24 import android.content.res.Configuration;
25 import android.os.RemoteException;
26 import android.util.Log;
27 
28 /**
29  * Helper class to change the system locale.
30  */
31 public final class ChangeLocale {
32 
33     private static final String TAG = ChangeLocale.class.getSimpleName();
34     private static final boolean DEBUG = true;
35 
36     /**
37      * Sets the system locale to the new one specified.
38      *
39      * @param locale A locale name in the form "ab_AB". Must not be null or empty.
40      * @return True if the locale was succesfully changed.
41      */
changeSystemLocale(String locale)42     public static boolean changeSystemLocale(String locale) {
43         if (DEBUG) {
44             Log.d(TAG, "Change locale to: " + locale);
45         }
46 
47         try {
48             IActivityManager am = ActivityManager.getService();
49             Configuration config = am.getConfiguration();
50 
51             Locale loc = null;
52 
53             String[] langCountry = locale.split("_");
54             if (langCountry.length == 2) {
55                 loc = new Locale(langCountry[0], langCountry[1]);
56             } else {
57                 loc = new Locale(locale);
58             }
59 
60             config.locale = loc;
61 
62             // indicate this isn't some passing default - the user wants this
63             // remembered
64             config.userSetLocale = true;
65 
66             am.updateConfiguration(config);
67 
68             return true;
69 
70         } catch (RemoteException e) {
71             if (DEBUG) {
72                 Log.e(TAG, "Change locale failed", e);
73             }
74         }
75 
76         return false;
77     }
78 }
79