用AlarmManager来设置作业-定时运行

安排作业：

      long repeatTime=24*60*60*1000;
        /* 将更换桌布的排程叵丈AlarmManager中 */
        Intent intent = new Intent(EX06_13.this,MyReceiver.class);
        PendingIntent sender = PendingIntent.getBroadcast(EX06_13.this,
            0, intent, 0);
        AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
        /* setRepeating()让排程重复执行
           startTime为开始执行时间
           repeatTime为重复执行间隔
           AlarmManager.RTC?使服务休眠时仍然会执行 */
        am.setRepeating(AlarmManager.RTC,startTime,repeatTime,sender);

 

 

取消作业：

      Intent intent = new Intent(EX06_13.this,MyReceiver.class);
      PendingIntent sender = PendingIntent.getBroadcast(EX06_13.this,
            0, intent, 0);
        /* 由AlarmManager中移除排程 */
        AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
        am.cancel(sender);