android 设置系统屏幕亮度
/*** 获得当前屏幕亮度的模式* SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 为自动调节屏幕亮度* SCREEN_BRIGHTNESS_MODE_MANUAL=0 为手动调节屏幕亮度*/private int getScreenMode(){int screenMode=0;try{screenMode = Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE);} catch (Exception localException){}return screenMode;}
/*** 获得当前屏幕亮度值 0--255*/private int getScreenBrightness(){int screenBrightness=255;try{screenBrightness = Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);} catch (Exception localException){}return screenBrightness;}
/*** 设置当前屏幕亮度的模式* SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 为自动调节屏幕亮度* SCREEN_BRIGHTNESS_MODE_MANUAL=0 为手动调节屏幕亮度*/private void setScreenMode(int paramInt){try{Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE, paramInt);} catch (Exception localException){localException.printStackTrace();}}
/*** 设置当前屏幕亮度值 0--255*/private void saveScreenBrightness(int paramInt){try{Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, paramInt);} catch (Exception localException){localException.printStackTrace();}}
/*** 保存当前的屏幕亮度值，并使之生效*/private void setScreenBrightness(int paramInt){Window localWindow = getWindow();WindowManager.LayoutParams localLayoutParams = localWindow.getAttributes();float f = paramInt / 255.0F;localLayoutParams.screenBrightness = f;localWindow.setAttributes(localLayoutParams);}
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