listviewjava_Android入门之ListView（纯java）

import java.util.*;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.*;

import android.widget.AdapterView.OnItemClickListener;

/*

* 本例展示了3种列表

* 1、主列表mainView&＃xff1a;单字符串单行显示&＃xff0c;simple_list_item_1&＃xff0c;

* 2、子列表1&＃xff0c;lv1&＃xff1a;双字符串双行显示&＃xff0c;simple_list_item_2

* 3、子列表2&＃xff0c;lv2&＃xff1a;自定义显示&＃xff0c;多View

*/

public class ListViewTest extends Activity {

private ListView mainView&＃61;null;

private ListView myList1&＃61;null;

private ListView myList2&＃61;null;

private SimpleAdapter sa&＃61;null;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

mainView_init();

setContentView(mainView);

}

/*mainView初始化*/

void mainView_init(){

mainView&＃61;new ListView(this);

mainView.setLayoutParams(new LinearLayout.LayoutParams(-1,-1));

//主列表是采用ArrayAdapter实现

String[] strList&＃61;{"simple_list_item_2","自定义"};

ArrayAdapter aa&＃61;new ArrayAdapter(this,android.R.layout.simple_list_item_1,strList);

mainView.setAdapter(aa);

//绑定监听

mainView.setOnItemClickListener(new OnItemClickListener(){

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

if(index&＃61;&＃61;0){

if(myList1&＃61;&＃61;null){

myList1_init();

}

setContentView(myList1);

}else if(index&＃61;&＃61;1){

if(myList1&＃61;&＃61;null){

myList2_init();

}

setContentView(myList2);

}

}

});

}

/*sa初始化*/

void sa_init(){

List> list&＃61;new ArrayList>();

Map item;

item&＃61;new HashMap();

item.put("姓名","张三同学");

item.put("性别","男");

list.add(item);

item&＃61;new HashMap();

item.put("姓名","李四同学");

item.put("性别","男");

list.add(item);

item&＃61;new HashMap();

item.put("姓名","小兰同学");

item.put("性别","女");

list.add(item);

//

String str[]&＃61;{"姓名","性别"};

int id[]&＃61;{android.R.id.text1,android.R.id.text2};//view由系统系统提供的

//

sa&＃61;new SimpleAdapter(this,list,android.R.layout.simple_list_item_2,str,id);

}

/*myList1初始化*/

void myList1_init(){

myList1&＃61;new ListView(this);

myList1.setLayoutParams(new LinearLayout.LayoutParams(-1,-1));

sa_init();

myList1.setAdapter(sa);

}

/*myList2初始化*/

void myList2_init(){

myList2&＃61;new ListView(this);

myList2.setLayoutParams(new LinearLayout.LayoutParams(-1,-1));

//自定义MyAapter&＃xff0c;见下篇

MyAdapter ma&＃61;new MyAdapter(this);

myList2.setAdapter(ma);

}

}