如果我改變手機的時間，鬧鐘經理會做什麼？

Question

我設置了多個鬧鐘，爲了控制它們，我改變了手機的時間。他們會正常工作？換句話說，如果我改變了手機的時間，鬧鐘會崩潰嗎？

Answer 1

我不知道你的意思是崩潰。但是，警報只知道設備的時間，所以如果您確實需要更改設備時間，則應該改變設備時間。

Answer 2

那麼這一切都取決於您在警報管理器的設置方法中傳遞的類型。

如果你已經使用ELAPSED_REALTIME或ELAPSED_REALTIME_WAKEUP，報警將不會觸發根據設備時間

RTC 

Added in API level 1 
int RTC 
Alarm time in System.currentTimeMillis() (wall clock time in UTC). This alarm does not wake the device up; if it goes off while the device is asleep, it will not be delivered until the next time the device wakes up. 

ELAPSED_REALTIME 

Added in API level 1 
int ELAPSED_REALTIME 
Alarm time in SystemClock.elapsedRealtime() (time since boot, including sleep). This alarm does not wake the device up; if it goes off while the device is asleep, it will not be delivered until the next time the device wakes up. 

，如果你有用戶RTC或RTC_WAKEUP，報警將被觸發