I noticed that when checking with Settings->Display->Brightness, the control bar is set to the setting I am writing with my app. But the display doesn't reflect the brightness. Is there any update method or a broadcast I have to sent before it gets reflected by the hardware?

----- Original Message ----- From: "Hendrik Greving" <[email protected]>
To: <[email protected]>
Sent: Wednesday, December 15, 2010 5:04 PM
Subject: Re: [android-developers] display brightness


Ok. I've tried to change the brightness with

               Settings.System.putInt(getContentResolver(),
                       SCREEN_BRIGHTNESS_MODE,
                       SCREEN_BRIGHTNESS_MODE_MANUAL);

Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, 10);

and tried some other values. It doesn't have any effect. Am I missing something? In API level 7, I can't find Settings.System.SCREEN_BRIGHTNESS_MODE so I've defined it myself. Is this a problem?

----- Original Message ----- From: "Mark Murphy" <[email protected]>
To: <[email protected]>
Sent: Wednesday, December 15, 2010 4:37 PM
Subject: Re: [android-developers] display brightness


On Wed, Dec 15, 2010 at 7:26 PM, Hendrik Greving <[email protected]> wrote:
Hi. Is there a way to check if hardware support automatic brightness?

android.provider.Settings.System and SCREEN_BRIGHTNESS_MODE will tell
you if automatic brightness is enabled. I am not aware of a way to
determine if the hardware has the option, though.

Can
setting the system settings to auto throw an exception?

I have no idea what this means, sorry.

--
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
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_The Busy Coder's Guide to *Advanced* Android Development_ Version 1.9
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