Android sets / returns values in a different scale

[nll]

From the Android documentation:

• Settings.System#SCREEN_BRIGHTNESS the return value is between 0 and 255
• WindowManager.LayoutParams#screenBrightness it seems the accepted values are between 0 and 1

Also from my testing the system setting does not reflect the value set on the window layout params, so I suspect the code should be something like this:

var context = Platform.CurrentActivity;
if (context == null) {
    return 0;
}

var windowBrightness = window.Attributes.ScreenBrightness;
if (windowBrightness < 0) {
    return Settings.System.GetInt(context.ContentResolver, Settings.System.ScreenBrightness) / 255;
}

return windowBrightness;

[jfversluis]

Oh good catch! If you want, feel free to open a PR!

[jfversluis]

Fixed by #2