1、首先先新建一个Android项目，就叫jump吧，如图：
3、然后修改activity_main.XML的内容，代码如下：<?xml version="1.0" encoding="utf-8"?><AbsoluteLayout android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" > <TextView android:id="@+id/text1" android:textSize="24sp" android:layout_width="186px" android:layout_height="186px" android:text="@string/layout1"/> <Button android:id="@+id/button1" android:layout_width="300px" android:layout_height="wrap_content" android:layout_x="50px" android:layout_y="100px" android:text="Go to Layout2"> </Button> </AbsoluteLayout>如图：
5、修改主函数代码如下：package com.example.learn1_4_jump;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.Button;public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button b1=(Button)findViewById(R.id.button1); b1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub jump2(); } });} private void jump2() { // TODO Auto-generated method stub setContentView(R.layout.mymain); Button b2=(Button)findViewById(R.id.button2); b2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub jump1(); } });} public void jump1() { setContentView(R.layout.activity_main); Button b1=(Button)findViewById(R.id.button1); b1.setOnClickListener(new Button.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub jump2(); } } ); }}如图：
7、主界面，如图，点击按钮，观察变化，如图：
