详解Android更改APP语言模式的实现过程

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:tools="http://schemas.android.com/tools"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:orientation="vertical"  android:padding="20dp" >  <TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:text="@string/hellow" />  <Button    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:onClick="changeLanguage"     android:text="语言切换" /></LinearLayout>

package com.example.chinesepage;import java.util.Locale;import android.app.Activity;import android.content.Intent;import android.content.res.Configuration;import android.content.res.Resources;import android.os.Bundle;import android.util.DisplayMetrics;import android.view.View;import android.widget.Toast;public class MainActivity extends Activity {  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);  }  /**   * 点击按钮，更换语言   *    * @param view   */  public void changeLanguage(View view) {    Resources resources = getResources();    Configuration configuration = resources.getConfiguration(); // 获取资源配置    if (configuration.locale.equals(Locale.CHINA)) { // 判断当前语言是否是中文      configuration.locale = Locale.ENGLISH; // 设置当前语言配置为英文    } else {      configuration.locale = Locale.CHINA; // 设置当前语言配置为中文    }    DisplayMetrics metrics = new DisplayMetrics();    resources.updateConfiguration(configuration, metrics); // 更新配置文件    sendBroadcast(new Intent("language")); // 发送广播，广播接受后重新开启此Activtiy以重新初始化界面语言.//    Intent intent = new Intent(MainActivity.this, MainActivity.class); //或者可以直接跳转MainActivity//    intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); //去除掉跳转的动画，让用户看起来好像没有跳转的感觉//    startActivity(intent);    finish();  }}

package com.example.chinesepage;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;/** * 自定义广播类 语言改变后重启Activity *  * @author asus *  */public class ChangeReceiver extends BroadcastReceiver {  private Intent mIntent;  @Override  public void onReceive(Context context, Intent intent) {    mIntent = new Intent(context, MainActivity.class);    mIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);    context.startActivity(mIntent);  }}

<resources>  <string name="app_name">语言切换</string>  <string name="hello_world">你好，World!</string>  <string name="action_settings">设置</string>  <string name="hellow">你好</string></resources>

<resources>  <string name="app_name">ChinesePage</string>  <string name="hello_world">Hello world!</string>  <string name="action_settings">Settings</string>  <string name="hellow">Hellow</string></resources>

 <receiver android:name="com.example.chinesepage.ChangeReceiver" >      <intent-filter>        <action android:name="language" />      </intent-filter>    </receiver>