在开发中会遇到要求切换语言的需求,来适应国际化,下面来分享一种方法,代码如下
public void updateLanguage(Locale locale) {
try {
Object objIActMag;
Class clzIActMag = Class.forName("android.app.IActivityManager");
Class clzActMagNative = Class
.forName("android.app.ActivityManagerNative");
//amn = ActivityManagerNative.getDefault();
Method mtdActMagNative$getDefault = clzActMagNative
.getDeclaredMethod("getDefault");
objIActMag = mtdActMagNative$getDefault.invoke(clzActMagNative);
// objIActMag = amn.getConfiguration();
Method mtdIActMag$getConfiguration = clzIActMag
.getDeclaredMethod("getConfiguration");
Configuration config = (Configuration) mtdIActMag$getConfiguration
.invoke(objIActMag);
// set the locale to the new value
config.locale = locale;
//持久化 config.userSetLocale = true;
Class clzConfig = Class
.forName("android.content.res.Configuration");
java.lang.reflect.Field userSetLocale = clzConfig
.getField("userSetLocale");
userSetLocale.set(config, true);
// 此处需要声明权限:android.permission.CHANGE_CONFIGURATION
// 会重新调用 onCreate();
Class[] clzParams = { Configuration.class};
// objIActMag.updateConfiguration(config);
Method mtdIActMag$updateConfiguration = clzIActMag
.getDeclaredMethod("updateConfiguration", clzParams);
mtdIActMag$updateConfiguration.invoke(objIActMag, config);
BackupManager.dataChanged("com.android.providers.settings");
} catch (Exception e) {
e.printStackTrace();
}
}
2.运用
updateLanguage(Locale.CHINA);
updateLanguage(Locale.ENGLISH);
实现中英文切换
3.申请权限
<uses-permission android:name="android.permission.CHANGE_CONFIGURATION"/>
就这样实现完美的系统语言的切换