Android Question Phone screen timeout problem

saeed10051 · Jun 17, 2020

Hi,
I am making an application, using a timer, the application timer works for 60 seconds but before the 60 seconds pass my phone screen time out and turn off as the screen time out is 45 seconds.
How can i keep the screen on until the timer is working

saeed10051 · Jun 17, 2020

i have tried the option provided in following thread to set the screen out time

Read and Set phone screen-off time

Hi everyone, Can anyone show me how to read the current screen-off time setting and change it programmatically. I checked through Phone library but there is only option to keep the screen always on. Thank you.

www.b4x.com

Getscreentimeout method is working fine
but the setscreentimeout method is giving me following error
Error occurred on line: 117 (Main)
java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:131)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:777)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:354)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at b4a.example.main.afterFirstLayout(main.java:105)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:83)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7814)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1075)
Caused by: java.lang.SecurityException: b4a.example was not granted this permission: android.permission.WRITE_SETTINGS.
at android.os.Parcel.createException(Parcel.java:2088)

it is saying that runtime permission write-settings is not granted, however i have given this permission in my manifest file.

LucaMs · Jun 17, 2020

saeed10051 said:
Caused by: java.lang.SecurityException: b4a.example was not granted this permission: android.permission.WRITE_SETTINGS.

https://www.b4x.com/android/forum/t...getsdkversion-minsdkversion.87610/post-597466

saeed10051 · Jun 17, 2020

LucaMs said:
https://www.b4x.com/android/forum/t...getsdkversion-minsdkversion.87610/post-597466

Thnaks Boss
but the method given over there to write
rp.CheckAndRequest("android.permission.WRITE_SETTINGS")

is returning following error. I have placed the above in the starter module, in Sub Service create
The other discussion on that thread is related to reading and writing to external storage

LucaMs · Jun 17, 2020

saeed10051 said:
Thnaks Boss
but the method given over there to write
rp.CheckAndRequest("android.permission.WRITE_SETTINGS")

is returning following error. I have placed the above in the starter module, in Sub Service create

[Erel] The CheckAndRequest method can only be called from an Activity.

https://www.b4x.com/android/forum/t...ons-android-6-0-permissions.67689/post-428719

LucaMs · Jun 17, 2020

https://www.b4x.com/android/forum/threads/permission-write_settings.94311/post-597465

saeed10051 · Jun 17, 2020

LucaMs said:
[Erel] The CheckAndRequest method can only be called from an Activity.

https://www.b4x.com/android/forum/t...ons-android-6-0-permissions.67689/post-428719

when i call it from my activity method create first time, it is returning following error

Error occurred on line: 119 (Main)
java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:131)
at b4a.example.main._setscreentimeout(main.java:481)
at b4a.example.main._activity_create(main.java:440)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at b4a.example.main.afterFirstLayout(main.java:105)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:83)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7814)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1075)

saeed10051 · Jun 17, 2020

If CanWriteToSystemSettings = False Then
Dim in As Intent
in.Initialize("android.settings.action.MANAGE_WRITE_SETTINGS", "package:" & Application.PackageName)
StartActivity(in)
Wait For Activity_Resume
If CanWriteToSystemSettings = False Then
Log("no permission...")
Return
End If

should i write above code in sub activity start first time

JohnC · Jun 17, 2020

Have you tried using the PhoneWakeState:

B4X:

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 .ReleaseKeepAlive, then the user's battery will die quickly.

LucaMs · Jun 17, 2020

https://www.b4x.com/android/forum/threads/setbrightness-on-android-9.104002/

saeed10051 · Jun 17, 2020

JohnC said:
Have you tried using the PhoneWakeState:

B4X:

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 .ReleaseKeepAlive, then the user's battery will die quickly.

Great
It is working now.
Only one small point that the phone immediately sleep after the timer is done. can i keep it running for some 10 more seconds

JohnC · Jun 17, 2020

saeed10051 said:
Great
It is working now.
Only one small point that the phone immediately sleep after the timer is done. can i keep it running for some 10 more seconds

Maybe you can simulate a keypress to reset the devices screen timeout counter:

simulate hardware keypress

Dear all, for various reasons I would like to simulate a keyevent. I know the right Keycode and I read how to do it over adb. But now I want to do it from within an application. However, I couldn't find a "native" way, so I thought, why not doing it by calling the shell. So in Activity_Create...

www.b4x.com

JohnC · Jun 17, 2020

You can also try doing a .KeepAlive(False) before calling .ReleaseKeepAlive that might prevent the device from immediately going to sleep when you call .ReleaseKeepAlive

udg · Jun 17, 2020

Another way could be to set the timer at 10s intervals. Using a counter, when it reaches 60s you do what it's needed; then on next tick (10s later) you release the lock and turn off (or whatever).

saeed10051 · Jun 18, 2020

Thanks All, for you time and support

Android Question Phone screen timeout problem

saeed10051

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Read and Set phone screen-off time

LucaMs

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saeed10051

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LucaMs

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LucaMs

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saeed10051

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saeed10051

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JohnC

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LucaMs

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JohnC

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simulate hardware keypress

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