Question

请教一个关于android AlarmManager的一个问题

Answer 1

根据API描述，AlarmManager就是为定时发送Intent而生，但也有一些注意事项，是不是阁下的使用有问题，可否贴出代码？

Note: The Alarm Manager is intended for cases where you want to have your application code run at a specific time, even if your application is not currently running.

Registered alarms are retained while the device is asleep (and can optionally wake the device up if they go off during that time), but will be cleared if it is turned off and rebooted.

If your alarm receiver called Context.startService(), it is possible that the phone will sleep before the requested service is launched. To prevent this, your BroadcastReceiver and Service will need to implement a separate wake lock policy to ensure that the phone continues running until the service becomes available.

Answer 2

Android中AlarmManager这个类主要是拿来管理闹钟的程序，可以通过这个api调用闹钟，设置多久提醒等等的功能，就像播放音乐一样