本文实例为大家分享了ListView下拉列表控件的使用方法，供大家参考，具体内容如下
ListView列表控件
列表的显示需要三个元素：
view 用来显示数据的view
适配器 用来把数据映射到view的中介
数据 具体的将被映射的字符串，图片，或者基本组件
案例代码
布局文件代码
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ListView android:id="@+id/lv_list" android:layout_width="match_parent" android:layout_height="match_parent" /> </LinearLayout>
activity代码
package rr.yy;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class ListViewDemo extends Activity {
private ListView lv_list;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
lv_list=(ListView)findViewById(R.id.lv_list);
final ArrayAdapter<String> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1,getData());
lv_list.setAdapter(adapter);
lv_list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
String txt =adapter.getItem(arg2);
Toast.makeText(ListViewDemo.this, txt, 0).show();
}
});
}
private String[] getData() {
// TODO Auto-generated method stub
return new String[]{"lin","kin","park","好好","先生","上学","但是","得分","读书","克扣","奋斗"};
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
