shellraspberry-pi3android-thingsscreen-off

Android Things: Raspberry Pi screen timeout


I'm building app on Raspberry Pi with Android Things and I have 7 inch touch screen, but the screen never turns off.

Is it possible to set timeout like in Android phones? or force it to turn off/on.

If I remove the power line and inserted again the screen, it will not work until I reboot.


Solution

  • There are two system settings that control this process: STAY_ON_WHILE_PLUGGED_IN and SCREEN_OFF_TIMEOUT

    The STAY_ON_WHILE_PLUGGED_IN setting is set to BATTERY_PLUGGED_AC by default. You can programmatically change this value in your application code with the Settings API:

    Settings.Global.putInt(getContentResolver(),
            Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0);
    

    You can also make this change from the command line if it is more convenient:

    $ adb shell settings put global stay_on_while_plugged_in 0