Always On Without Ambient Mode? Or Do Not Dim When Enter Ambient?

For experiment/user study purpose, I need to keep my screen on for few minutes. I have follow the guide from http://developer.android.com/training/wearables/apps/always-on.html and

Solution 1:

You may try

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

in your activity's onCreate() or use

android:keepScreenOn="true"

in your activity's layout. See this training material for details.