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When the phone is idle, the screen turns off after the configured time. For ex: if time is set to 30 sec, first the screen will dim after approximately 25 seconds and then after 5 seconds it will turn off the screen completely.
How can I increase that "5" seconds time to 30 seconds or any other value?
If you are using a custom ROM (like CyanogenMod) or stock Android go to Settings>Display>Automatic backlight. Click on enable and select the window length option to change the time according to your needs.
If you have source code of frameworks, you could modify dim duration in PowerManagerService:
private static final int SCREEN_DIM_DURATION = 7 * 1000;
private static final float MAXIMUM_SCREEN_DIM_RATIO = 0.2f;
private int getScreenDimDurationLocked(int screenOffTimeout) {
return Math.min(SCREEN_DIM_DURATION,
(int)(screenOffTimeout * MAXIMUM_SCREEN_DIM_RATIO));
}
The return value of getScreenDimDurationLocked() is what you want, you could modify it.
Below link is a post to solve this problem, I wrote in Chinese:
CSDN Blog: Modify Android dim duration in frameworks
I hope that would be useful for you.
