学步园

ListCityActivity.java

package com.example.listactivity;

import android.app.ListActivity;
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 ListCityActivity extends ListActivity{
	String [] cities = {"郑州", "成都", "武汉", "北京"};
	ArrayAdapter<String> adapter;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		//new adapter
		adapter = new ArrayAdapter<String>(this, 
				android.R.layout.simple_list_item_1, 
				cities);
		ListView lv = (ListView)findViewById(android.R.id.list);
		lv.setAdapter(adapter);
		
		lv.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
					long arg3) {
				// TODO Auto-generated method stub
				Toast.makeText(ListCityActivity.this, "索引:" + arg2, 2222).show();
			}
			
		});
	}
	
	
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@id/android:list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>