package com.example.test;

import android.app.Activity;

import android.os.Bundle;

import android.util.DisplayMetrics;

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 btn1 = (Button)findViewById(R.id.btn_layout1);

btn1.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

gotoLayout2();

}

});

}

private void gotoLayout2(){

setContentView(R.layout.activity_voice);

Button btn2 = (Button)findViewById(R.id.btn_layout2);

btn2.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

gotoLayout1();

}

});

}

private void gotoLayout1(){

setContentView(R.layout.activity_main);

Button btn1 = (Button)findViewById(R.id.btn_layout1);

btn1.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

gotoLayout2();

}

});

}

}

activity_main.xml

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context="com.example.test.MainA                   ctivity"

android:background="#f55"

>

android:id="@+id/tv_baidu"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="这是第一个页面" />

android:id="@+id/btn_layout1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="按钮1" />

activity_voice.xml