android修改系统时区

浏览数：26 / 时间：2015年06月11日

动态注册广播接收器必须有实例存在

设置系统时区：

AlarmManager mAlarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);

mAlarmManager.setTimeZone("GMT+08:00");

设置时区需要在manifest.xml中增加如下权限：

<uses-permission android:name="android.permission.SET_TIME_ZONE" />

package com.lzh.modeify;

import java.util.Calendar;
import java.util.Timer;

import android.R.integer;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.util.Log;

public class ZoneService extends Service {
   private static final String ACTION_DATE_CHANGED = Intent.ACTION_DATE_CHANGED;
   private static final String ACTION_TIME_CHANGED = Intent.ACTION_TIME_CHANGED;

   private BroadcastReceiver TimerChangered = new BroadcastReceiver() {

       @Override
       public void onReceive(Context context, Intent intent) {

           Calendar c = Calendar.getInstance();// 可以对每个时间域单独修改

//           int year = c.get(Calendar.YEAR);
//           int month = c.get(Calendar.MONTH);
//           int date = c.get(Calendar.DATE);
           int hour = c.get(Calendar.HOUR_OF_DAY);
           int minute = c.get(Calendar.MINUTE);
           int second = c.get(Calendar.SECOND);

           Log.v("time", Integer.toString(hour)+Integer.toString(minute)+Integer.toString(second));
       }
   };

   private BroadcastReceiver stopServiceReceiver = new BroadcastReceiver() {

       public void onReceive(android.content.Context context, Intent intent) {
           ZoneService.this.stopSelf();
           ZoneService.this.unregisterReceiver(stopServiceReceiver);
       };
   };

   @Override
   public void onCreate() {

       super.onCreate();
       Log.i("liujun", "后台进程被创建。。。");
       IntentFilter intentFilter = new IntentFilter("closeService");
       ZoneService.this.registerReceiver(stopServiceReceiver, intentFilter);
       // 服务启动广播接收器，使得广播接收器可以在程序退出后在后天继续执行，接收系统时间变更广播事件

       ZoneService.this.registerReceiver(TimerChangered, new IntentFilter(
               Intent.ACTION_TIME_TICK));

   }

   @Override
   public int onStartCommand(Intent intent, int flags, int startId) {

       Log.i("liujun", "后台进程。。。");
       return super.onStartCommand(intent, flags, startId);

   }

   @Override
   public void onDestroy() {

       Log.i("liujun", "后台进程被销毁了。。。");
       super.onDestroy();
   }

   @Override
   public IBinder onBind(Intent intent) {
       // TODO 自动生成的方法存根
       return null;
   }

}

MainActivity.this.sendBroadcast(new Intent("closeService"));

MainActivity.this.startService(new Intent(MainActivity.this,ZoneService.class));

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android修改系统时区