setContentView()实现布局页面的跳转

package com.google.and;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
/**
*
* @author google
*  实现不同Layout的转换功能,setContentview()用法；
*/
public class setContentViewDemo extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

// 以findViewById()取得Button对象并添加事件onClickLisener
Button button1=(Button)findViewById(R.id.bt1);
button1.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
goToLayout2();

}});

}
// 将layout由main.xml切换成mylayout.xml
public void goToLayout2() {
// 将layout改成mylayout
setContentView(R.layout.mylayout);
Button b2 = (Button) findViewById(R.id.bt2);
b2.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
goToLayout1();
}
});
}
// 将layout由mylayout.xml切换成main.xml
public void goToLayout1() {
setContentView(R.layout.main);
Button bt1 = (Button) findViewById(R.id.bt1);
bt1.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
goToLayout2();
}
});
}

}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://google.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="欢迎来到goole_acmer的博客"
/>
<Button
android:id="@+id/bt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="点击进入Layout2"
/>
</LinearLayout>

需要跳转到的布局文件mylayout.xml
Java代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://google.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffffff"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Welcom to my bog"
/>
<Button
android:id="@+id/bt2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="点击进入Laout1"
/>
</LinearLayout>