android 实现应用内语言切换

android开发中经常需要实现各种语言的切换功能,网上也有一些解决方案,经本人测试都不算好用, 以下是我研究的解决方案,绝对对你有帮助.

Demo下载地址：http://download.csdn.net/detail/qq_26420489/9392952

方法/步骤

1. 1,strings.xml

   <?xml version="1.0" encoding="utf-8"?>
   <resources>
       <string name="app_name">MoreLanguageSwitch</string>
       <string name="action_settings">Settings</string>
       <string name="hello_world">Hello world!</string>
       <string name="app_name_en">my app</string>
       <string name="app_name_zh">去旅游网</string>
   </resources>

2. 2. MainActivity

   package com.example.morelanguageswitch;
   
   import android.app.Activity;
   import android.content.Context;
   import android.content.Intent;
   import android.content.SharedPreferences;
   import android.os.Bundle;
   import android.view.Menu;
   import android.view.View;
   import android.view.View.OnClickListener;
   import android.widget.Button;
   import android.widget.TextView;
   
   public class MainActivity extends Activity implements OnClickListener {
   private Button cnBtn;
   private Button enBtn;
   private TextView appNameText;
   
   @Override
   protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   cnBtn = (Button) findViewById(R.id.cnBtn);
   enBtn = (Button) findViewById(R.id.enbtn);
   appNameText = (TextView) findViewById(R.id.appNameText);
   appNameText.setText(Tools.getStringResId(this, "app_name",
   Tools.getLanguage(this)));
   cnBtn.setOnClickListener(this);
   enBtn.setOnClickListener(this);
   }
   
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
   getMenuInflater().inflate(R.menu.main, menu);
   return true;
   }
   
   @Override
   public void onClick(View v) {
   SharedPreferences sp = getSharedPreferences("language",
   Activity.MODE_PRIVATE);
   SharedPreferences.Editor editor = sp.edit();
   switch (v.getId()) {
   case R.id.cnBtn:
   editor.putString("language", "zh");
   editor.commit();
   refresh(this);
   break;
   case R.id.enbtn:
   editor.putString("language", "en");
   editor.commit();
   refresh(this);
   break;
   default:
   break;
   }
   }
   
   private void refresh(Context context) {
   finish();
   Intent intent = new Intent(context, context.getClass());
   startActivity(intent); // overridePendingTransition(R.anim.new_dync_in_from_right,
   // R.anim.new_dync_out_to_left); } }
   }
   }

3. 3.Tools

   package com.example.morelanguageswitch;
   
   import java.util.Locale;
   import android.app.Activity;
   import android.content.Context;
   import android.content.SharedPreferences;
   import android.util.Log;
   
   public class Tools {
   public static int getStringResId(Context context, String name,
   String language) {
   return context.getResources().getIdentifier(name + "_" + language,
   "string", context.getPackageName());
   }
   
   public static String getLanguage(Context context) {
   SharedPreferences sp = context.getSharedPreferences("language",
   Activity.MODE_PRIVATE);
   String language = sp.getString("language", "");
   if (language == null || language.equals("")) {
   language = Locale.getDefault().getLanguage();
   }
   Log.v("message", "language new :" + language);
   return language;
   }
   }

4. 4.activity_main.xml

5. <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" >
   
       <TextView
           android:id="@+id/helloText"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="@string/hello_world" />
   
       <TextView
           android:id="@+id/appNameText"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content" />
   
       <Button
           android:id="@+id/cnBtn"
           android:layout_width="fill_parent"
           android:layout_height="wrap_content"
           android:text="CN" />
   
       <Button
           android:id="@+id/enbtn"
           android:layout_width="fill_parent"
           android:layout_height="wrap_content"
           android:text="EN" />
   
   </LinearLayout>
6. 注：Demo下载地址：http://download.csdn.net/detail/qq_26420489/9392952点击打开链接

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