Turning Sleeping Android Device on in BroadcastReceiver Class

Question

I have a broadcastreceiver class that starts a service. What I want to happen is when it starts the service it should also turn the device screen on. I haven't found a solution to implement. I tried extending the WakefulBroadcastReceiver but it won't open the screen, rather it keeps the device on if it was already on. Does anyone know of a solution?

Answer 1

try this method

 public void turnScreenOn(Context context) {
    PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
    @SuppressWarnings("deprecation")
    WakeLock wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.ON_AFTER_RELEASE, "MyWakeLock");
    wakeLock.acquire();
    wakeLock.release();
}

requires the permission

  <uses-permission android:name="android.permission.WAKE_LOCK"/>