Android Question Turn on the screen of the device from my program

vecino

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• Nov 15, 2022

• #2

Just in case I have not explained myself well (or the translator has not done a good job), what I want is something similar to when the phone is with the screen off and we receive a call. The calling program "turns on" the screen and the dialog to accept or cancel the call is displayed.

In my case I am checking if a file exists, and if it does, I want to turn on the screen. The program is running with "wake partiallock".

 

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Erel

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• Nov 16, 2022

• #3

You need PhoneWakeState.KeepAlive. It will (try to) turn on the screen.

 

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vecino

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• Nov 16, 2022

• #4

Erel said:

You need PhoneWakeState.KeepAlive. It will (try to) turn on the screen.

Click to expand...

Hello, thank you.
Does that way the phone call applications work?
Those apps turn on the screen when a call is received.

 

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vecino

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• Nov 16, 2022

• #5

I have implemented it in my application and it works fine.
Although there is something I don't understand, how do phone call programs bypass security controls (pattern, pin, fingerprint, etc.)?

 

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Erel

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• Nov 17, 2022

• #6

Check this old post: https://www.b4x.com/android/forum/threads/unlock-password-locked-screen.14870/post-84636

 

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vecino

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• Nov 17, 2022

• #7

Great, thank you very much.

 

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vecino

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• Nov 17, 2022

• #8

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
Is there anything else to be aware of?

 

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Erel

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• Nov 18, 2022

• #9

Are you starting an activity from a service? Make sure to hold the special "Draw over apps" permission.

 

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vecino

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• Nov 18, 2022

• #10

Thank you, I will try

 

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