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I mentioned that my fcm messages arrive without delay (data messages), but throwing a notification (even with high priority) doesn't work all the time when the phone sleeps. Setting the phonewakestate before throwing the notification and releasing it after seems to work: pws.PartialLock D
link: It is a tip.
link: is this a question? or only a advertisement?

how to set B4i I can do in B4A Dim pws As PhoneWakeState pws.KeepAlive(True) pws.ReleaseKeepAlive
link: App.IdleTimerDisabled = True

If you talk about the programmatic screen off like by the hardware switch - it's impossible, IMHO. PhoneWakeState is about switching off the backlight variant.
link: Search for "WAKE_LOCK", PhoneWakeState AddPermission(android.permission.WAKE_LOCK)

Have you tried using the PhoneWakeState: Dim PWS As PhoneWakeState PWS.KeepAlive(True) 'keep screen on while we do things (don't let screen timeout) ....do your timer work here.... PWS.ReleaseKeepAlive 'let the phone go to sleep now Keep in mind, if you forget to do the .Releas

You should use PhoneWakeState for that.

'No standby Dim nowake As PhoneWakeState nowake.KeepAlive(True)
link: PhoneWakeState non funziona forse mi sono spiegato male, PhoneWakeState mantiene lo schermo sempre attivo io ho bisogno che l'applicazione non vada in
link: io uso ancora il PhoneWakeState e mi funziona

With PhoneWakeState.KeepAlive it should turn on the screen, and it does turn on, but it only works on my phone. I've tried it on several phones from some customers and it hasn't worked on any of them :rolleyes: Is there anything else to be aware of?
link: You need PhoneWakeState.KeepAlive. It will (try to) turn on the screen.

You need to use PhoneWakeState to prevent the CPU from sleeping. Example: https://www.b4x.-location-tracking.99873/#content Note that phones do not like apps that prevent the CPU from sleeping as it impacts the battery. Many phones will kill the app at some point.
link: Thanks Erel! It worked well. Is there a better way to develop a timer avoiding the use of PhoneWakeState, preventing the battery draining that continu

Private mPhoneWakeState As PhoneWakeState Private Sub B4XPage_Background mPhoneWakeState.ReleaseKeepAlive End Sub Private Sub B4XPage_Foreground mPhoneWakeState.KeepAlive(True) End Sub

Hi to all, finally, using PhoneWakeState it is unable to prevent the device to go to sleep and active services are able to maintain active communication or jobs It may be useful here are the steps I followed: 1- add the following permission in AddPermission (android.permission.WAKE_LOCK) files i
link: Partial lock https://www.b4x.com/android/help/phone.html#phonewakestate

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