android+系统屏幕亮度,android 设置系统屏幕亮度
android 設(shè)置系統(tǒng)屏幕亮度
權(quán)限
/**
* 獲得當(dāng)前屏幕亮度的模式
* SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 為自動調(diào)節(jié)屏幕亮度
* SCREEN_BRIGHTNESS_MODE_MANUAL=0 為手動調(diào)節(jié)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;
}
/**
* 獲得當(dāng)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;
}
/**
* 設(shè)置當(dāng)前屏幕亮度的模式
* SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 為自動調(diào)節(jié)屏幕亮度
* SCREEN_BRIGHTNESS_MODE_MANUAL=0 為手動調(diào)節(jié)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();
}
}
/**
* 設(shè)置當(dāng)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();
}
}
/**
* 保存當(dāng)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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