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android - How to detect whether screen is on or off if API level is 4?

I am wondering to know how to detect screen dim or brightness on Android 1.6.

I've found a solution on API Level 7. It is easy to develop :

PowerManager pm = (PowerManager)
getSystemService(Context.POWER_SERVICE);
boolean isScreenOn = pm.isScreenOn();

But I need a solution for Android 1.x.

Can you suggest me ?

Thanks.

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For screen on-off state, you can try with ACTION_SCREEN_ON and ACTION_SCREEN_OFF Intents, as shown in this blog post: http://thinkandroid.wordpress.com/2010/01/24/handling-screen-off-and-screen-on-intents/


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