Change the speed of brightness being set

Question

Currently I am using the following method to change the brightness

WindowManager.LayoutParams lp = getActivity().getWindow().getAttributes();
float brightness = 1.0f;
lp.screenBrightness = brightness;
getActivity().getWindow().setAttributes(lp);

This changes the brightness of the activity from the current brightness to full brightness. This happens gradually, Is it possible to change the speed of the brightness being set? I want to increase the speed of brightness being set.

Answer 1

AndroidManifest.xml

<uses-permission android:name="android.permission.WRITE_SETTINGS" />

MainActivity.java

int progress = 100;
Settings.System.putInt(this,Settings.System.SCREEN_BRIGHTNESS, progress);