/**获取屏幕亮度
/
public static int getScreenBrightness(Activity activity){
int value = 0;
ContentResolver cr = activity.getContentResolver();
try{
value = Settings.System.getInt(cr,Settings.System.SCREEN_BRIGHTNESS);
}catch(SettingNotFoundException e){
}
return vlaue;
}
设置屏幕亮度
public static void setScreenBrightness(Activity activity){
WindowManager.LayoutParams params = activity.getWindow().getAttributes();
params.screenBrightness = value / 255f;
activity.getWindow().setAttributes(params);
}
//至此，应该说操作亮度的差不多都有了，结束！
//哎，本来认为是应该结束了，但是悲剧得是，既然像刚才那样设置的话，只能在当前的activity中有作用，一段退出的时候，会发现毫无作用，悲剧，原来是忘记了保存了。汗！
/***保存亮度设置状态*/publicstaticvoidsaveBrightness(ContentResolverresolver,intbrightness){Uriuri=android.provider.Settings.System.getUriFor("screen_brightness");android.provider.Settings.System.putInt(resolver,"screen_brightness",brightness);//resolver.registerContentObserver(uri,true,myContentObserver);resolver.notifyChange(uri,null);}}
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