一个Activity中使用两个layout实例

package com.sbs.aas2l;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.ListView;

import android.widget.TextView;

import android.widget.AdapterView.OnItemClickListener;



public class aas2l extends Activity implements OnClickListener {

    /** Called when the activity is first created. */

private String[] data= {"Item-1", "Item-2", "Item-3"};

private Button btn, btn2;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        //setContentView(R.layout.main);

        set_aas2l_layout();

    }

    public void set_aas2l_layout() {

     setContentView(R.layout.aas2l);

     btn = (Button)findViewById(R.id.pu_btn);

     btn.setOnClickListener(this);

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

     btn2.setOnClickListener(this); 

    }

    public void onClick(View v){

     if (v == btn) this.set_pu_layout();

     if(v == btn2) this.finish(); }

     public void set_pu_layout(){

     setContentView(R.layout.pickup);

     ListView lv = (ListView)findViewById(R.id.list);

     ArrayAdapter<String> arrayAdapter

     = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, data);

     lv.setAdapter(arrayAdapter);

     lv.setOnItemClickListener(listener);

    }

    OnItemClickListener listener= new OnItemClickListener(){

     public void onItemClick(AdapterView arg0, View arg1, int arg2, long arg3){

      set_aas2l_layout();

      TextView tv = (TextView)findViewById(R.id.tv);

      tv.setText("select: " + data[arg2]);

     }

    };

}

step3。编写ass2l.xml (当然也可以在main.xml中写，这次我新建一个。）



<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="wrap_content">



<TextView android:id= "@+id/tv"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="3dip"

android:text="@string/dialog" 

/>

<Button android:id= "@+id/pu_btn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="3dip"

android:text="@string/pickup" 

/>

<Button android:id= "@+id/exit_btn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="3dip"

android:text="@string/exit" 

/>

</LinearLayout>



step4。编写pickup.xml(点击select按钮后显示的布局，是一个listview。）



<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.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="Hello World, aas2l" 

/>

<ListView android:id="@+id/list"

android:layout_width="wrap_content"

android:layout_height="wrap_content" 

/>

</LinearLayout>



step5。修改strings.xml



<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string name="hello">Hello World, aas2l!</string>

    <string name="app_name">adroid activity surport 2 layouts</string>

    <string name="pickup">select please</string>

    <string name="exit">Exit</string>

    <string name="dialog">dialog</string>

</resources>



step6。运行。



如图：



初始界面



点击select后



选择后







end 。。。。

step3。编写ass2l.xml (当然也可以在main.xml中写，这次我新建一个。）



<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="wrap_content">



<TextView android:id= "@+id/tv"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="3dip"

android:text="@string/dialog" 

/>

<Button android:id= "@+id/pu_btn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="3dip"

android:text="@string/pickup" 

/>

<Button android:id= "@+id/exit_btn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginRight="3dip"

android:text="@string/exit" 

/>

</LinearLayout>



step4。编写pickup.xml(点击select按钮后显示的布局，是一个listview。）



<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.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="Hello World, aas2l" 

/>

<ListView android:id="@+id/list"

android:layout_width="wrap_content"

android:layout_height="wrap_content" 

/>

</LinearLayout>



step5。修改strings.xml



<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string name="hello">Hello World, aas2l!</string>

    <string name="app_name">adroid activity surport 2 layouts</string>

    <string name="pickup">select please</string>

    <string name="exit">Exit</string>

    <string name="dialog">dialog</string>

</resources>



step6。运行。



如图：



初始界面



点击select后



选择后







end 。。。。