Java tutorial
//package com.java2s; //License from project: LGPL import android.app.Activity; import android.content.ContentResolver; import android.provider.Settings; public class Main { public static float getScreenBrightness(Activity activity) { float nowBrightnessValue = -1; ContentResolver resolver = activity.getContentResolver(); try { nowBrightnessValue = android.provider.Settings.System.getInt(resolver, Settings.System.SCREEN_BRIGHTNESS, -1); nowBrightnessValue /= 255; } catch (Exception e) { e.printStackTrace(); } return nowBrightnessValue; } }