android - setAlarmClock 和 setExactAndAllowWhileIdle 之间的区别

Question

在下文的链接中提到了以下内容(API 级别 23 中的 Doze 模式):

• 如果您需要设置在打瞌睡时触发的警报，请使用 setAndAllowWhileIdle() 或 setExactAndAllowWhileIdle()。
• 使用 setAlarmClock() 设置的闹钟会继续正常触发——系统会在这些闹钟触发前不久退出打盹模式。

setExactAndAllowWhileIdle 和 setAlarmClock 在 Doze 模式方面有什么区别？

setAlarmClock 是一个准确的闹钟吗？

https://developer.android.com/training/monitoring-device-state/doze-standby#testing_doze_and_app_standby

Answer 1

是 setAlarmClock 与 setExactAndAllowWhileIdle 相同。来自 Android Developers Documentation关于setAlarmClock

Due to the nature of this kind of alarm, similar to setExactAndAllowWhileIdle(int, long, PendingIntent), these alarms will be allowed to trigger even if the system is in a low-power idle (a.k.a. doze) mode.

setAndAllowWhileIdle 与 set 相同，只是它会在设备处于休眠模式时被触发。如果在很短的时间间隔内设置了多个 setAndAllowWhileIdle 警报，系统可能会立即触发所有警报，而不是在几秒/分钟后一个一个地触发。来自文档:

Under normal system operation, it will not dispatch these alarms more than about every minute (at which point every such pending alarm is dispatched); when in low-power idle modes this duration may be significantly longer, such as 15 minutes.