我想制作一个短信调度应用,在预定义的时间发送短信。我决定为此目的使用计时器。在我的研究过程中,我发现Alarm Manager更适合在android中安排一次事件。任何指导都会富有成效。
我想在我的服务中实现计时器,如给定代码所示:
public class SMSTimerService extends Service {
private Timer timer = new Timer();
Long delay = 10000L;//for long we have to keep L at the last of the integer;
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;//null means we are not using any IPC here
}
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Log.i("prativa","service has started");
startService();
}
@Override
public void onDestroy() {
super.onDestroy();
Log.i("prativa","service is destroying");
shutdownService();
}
/*
* starting the service
* */
private void startService()
{
TimerTask task = new TimerTask(){
@Override
public void run() {
sendSMS();
}};
timer.schedule(task, delay);
}
private void sendSMS()
{
String phone = "5556";
String message = "This is my test message";
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(phone, null, message, null, null);
}
private void shutdownService()
{
if(timer != null)
timer.cancel();
Log.i("Prativa","Timer has stopped");
}
}
答案 0 :(得分:3)
这就是我给你的东西:
http://mobile.tutsplus.com/tutorials/android/android-fundamentals-scheduling-recurring-tasks/
编辑:如何通过AlarmManager触发广播:
Intent broadCastIntent = new Intent(this, "YOURBROADCASTRECEIVER.class");
PendingIntent intent = PendingIntent pendingIntent = PendingIntent.getBroadcast(
this, 0, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis(),
AlarmManager.INTERVAL_HOUR, pendingIntent);
请注意,此闹钟将在第一时间立即启动。如果你想稍后设置它,你可以乘以“System.currentTimeMillis()* x”,其中x = 1000意味着一秒。