Java tutorial
//package com.java2s; /** * Copyright 2016 JustWayward Team * <p> * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.app.Activity; import android.view.Window; import android.view.WindowManager; public class Main { public static void setScreenBrightness(int paramInt, Activity mActivity) { if (paramInt <= 5) { paramInt = 5; } Window localWindow = mActivity.getWindow(); WindowManager.LayoutParams localLayoutParams = localWindow.getAttributes(); float f = paramInt / 100.0F; localLayoutParams.screenBrightness = f; localWindow.setAttributes(localLayoutParams); } }