Android LL disable screen lock and suspend

[kamilbystryk]

I would like to display was always on, regardless of the time set in menu.

I changed "def_screen_off_timeout" in file /frameworks/base/packages/SettingsProvider/res/values/defaults.xml to "-1" value, however nothing has changed.

What should be amended to

- trun off default lock

- display was always on?

[gary_bisson · Accepted solution]

Hi Kamil,

If you want to turn off the lock screen you can copy this overlay:

android_device_boundary/defaults.xml at boundary-imx-l5.0.0_1.0.0-ga · boundarydevices/android_devic...

As for the timeout, although -1 should be working, you can try adding the following line to that same overlay:

<bool name="def_stay_on_while_plugged_in">true</bool>

Regards,

Gary

[kamilbystryk]

Thaks for answer,

I set as the default no lock setting. I know method of use developer setting "stay awake", but I treat it as only a partial solution - user can disable this option.

I think we can be use this method, however it would require remove setting "stay awake" from "developer settings" menu. You could prompt where is the application of "settings" menu?

[gary_bisson]

Hi Kamil,

Well the same goes with the timeout value, the user can still modify it under the Settings > Display. As for hiding the menu, you have to look under packages/apps/Settings.

For instance, you could disable the developer options menu here, so nobody could change the "Stay Awake" nor enable/disable ADB:

Cross Reference: /packages/apps/Settings/src/com/android/settings/DeviceInfoSettings.java

Regards,

Gary

[SergioSolis]

Hello Kamil,

Do you mean you want to keep the screen on all the time?... do you want this to work on an specific app or running on the system?

[kamilbystryk]

Hello Sergio,

Its wall mounted controller with system suplly, so i want to have always active display (with system launcher), without sleep / suspend.