Java tutorial
//package com.java2s; import android.app.Instrumentation; import android.view.KeyEvent; public class Main { /** * this function work by permission. */ public static void pressHome() { new Thread(new Runnable() { @Override public void run() { Instrumentation m_Instrumentation = new Instrumentation(); m_Instrumentation.sendKeyDownUpSync(KeyEvent.KEYCODE_HOME); try { Thread.sleep(500); } catch (InterruptedException e) { e.printStackTrace(); } m_Instrumentation.sendKeyDownUpSync(KeyEvent.KEYCODE_HOME); } }).start(); } }