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18312812
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2013-08-19T11:36:11.707
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2018-01-26T05:21:21.790
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2018-01-26T05:21:21.790
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35
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text
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You can use following : <pre><code>//Variable to store brightness value private int brightness; //Content resolver used as a handle to the system's settings private ContentResolver cResolver; //Window object, that will store a reference to the current window private Window window; </code></pre> In your onCreate write: <pre><code>//Get the content resolver cResolver = getContentResolver(); //Get the current window window = getWindow(); try { // To handle the auto Settings.System.putInt(cResolver, Settings.System.SCREEN_BRIGHTNESS_MODE, Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); //Get the current system brightness brightness = System.getInt(cResolver, Settings.System.SCREEN_BRIGHTNESS); } catch (SettingNotFoundException e) { //Throw an error case it couldn't be retrieved Log.e("Error", "Cannot access system brightness"); e.printStackTrace(); } </code></pre> Write the code to monitor the change in brightness. then you can set the updated brightness as follows: <pre><code> //Set the system brightness using the brightness variable value System.putInt(cResolver, System.SCREEN_BRIGHTNESS, brightness); //Get the current window attributes LayoutParams layoutpars = window.getAttributes(); //Set the brightness of this window layoutpars.screenBrightness = brightness / (float)255; //Apply attribute changes to this window window.setAttributes(layoutpars); </code></pre> Permission in manifest: <pre><code><uses-permission android:name="android.permission.WRITE_SETTINGS"></uses-permission> </code></pre> For API > 23, you need to request the permission through Settings Activity, described here: <a href="https://stackoverflow.com/questions/32083410/cant-get-write-settings-permission">Can't get WRITE_SETTINGS permission</a>
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1. POChange the System Brightness Programmatically
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1. USM. Usman Khan
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1. USRitesh Gune
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1. COHere i have to change the brightness variable with my variable? like between 0 - 255 ? ? ?
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 USUsman Riaz

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