Android 调节屏幕亮度代码，android亮度,public void

Android 调节屏幕亮度代码，android亮度,public void

public void setBrightness(int level) {  ContentResolver cr = getContentResolver();  Settings.System.putInt(cr, "screen_brightness", level);  Window window = getWindow();  LayoutParams attributes = window.getAttributes();  float flevel = level;  attributes.screenBrightness = flevel / 255;  getWindow().setAttributes(attributes); }