Java tutorial
//package com.java2s; // Use of this source code is governed by a BSD-style license that can be import android.app.Activity; import android.app.ActivityManager; import android.graphics.Bitmap; import android.graphics.Color; import android.os.Build; public class Main { /** * @param activity Activity that should get the task description update. * @param title Title of the activity. * @param icon Icon of the activity. * @param color Color of the activity. It must be a fully opaque color. */ public static void setTaskDescription(Activity activity, String title, Bitmap icon, int color) { // TaskDescription requires an opaque color. assert Color.alpha(color) == 255; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { ActivityManager.TaskDescription description = new ActivityManager.TaskDescription(title, icon, color); activity.setTaskDescription(description); } } }