how to wakeup android phone from sleep?

Question

How to wakeup android phone from sleep (suspend to mem) programmably? I don\'t want to acquire any wakelock, which means the phone goes into \"real\" sleep with the cpu disabled

Answer 1

Use AlarmManager to broadcast an Intent at the time you want to do some work and have the device wake up. In the BroadcastReceiver, either do the work you need to do (if it is short), or obtain a WakeLock (probably via a singleton), start a service, have the service do the work, then have the service release the WakeLock.

You can read about that here: https://groups.google.com/forum/#!topic/android-developers/5--QRAPlFL0