Android Alarm闹钟
1,设置闹钟(只响一次)
Intent intent = new Intent(AlarmController.this, OneShotAlarm.class); PendingIntent sender = PendingIntent.getBroadcast(AlarmController.this,0, intent, 0); Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(System.currentTimeMillis()); calendar.add(Calendar.SECOND, 30); // Schedule the alarm! AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE); am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender);
2,重复闹钟
Intent intent = new Intent(AlarmController.this, RepeatingAlarm.class); PendingIntent sender = PendingIntent.getBroadcast(AlarmController.this,0, intent, 0); long firstTime = SystemClock.elapsedRealtime(); firstTime += 15*1000; AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE); am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,firstTime, 15*1000, sender);
3,取消闹钟
Intent intent = new Intent(AlarmController.this, RepeatingAlarm.class); PendingIntent sender = PendingIntent.getBroadcast(AlarmController.this,0, intent, 0); AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE); am.cancel(sender);
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一:OneShotAlarm.class/RepeatingAlarm.class
另外的Activity(Activity,Service,BroadcastReceiver)
二:PendingIntent字面意思是挂件意图
英文解释:*AdescriptionofanIntentandtargetactiontoperformwithit.
*Instancesofthisclassarecreatedwith{@link#getActivity},
*{@link#getBroadcast},{@link#getService};thereturnedobjectcanbe
*handedtootherapplicationssothattheycanperformtheactionyou
*describedonyourbehalfatalatertime.
PendingIntent就是一个Intent的描述,我们可以把这个描述交给别的程序,别的程序根据这个描述在后面的别的时间做你安排做的事情
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