Android 之 ListView使用ArrayAdapter展示列表

ListView是开发过程中用得最多的列表组件。

package com.example.phonedemo;

import com.example.phonedemo.util.Utils;

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.LinearLayout;
import android.widget.ListView;
import android.widget.Toast;

public class ArrayAdapterDemo extends Activity {

    private LinearLayout layout = null;
    private ListView list = null;
    private ArrayAdapter<String> adapter = null;
    private String[] arr = { "Beijing", "Shanghai", "Guangzhou", "Shenzhen",
            "Guiyang", "Kunming", "Nanjing", "Hefei" };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        this.layout = new LinearLayout(this);
        this.layout.setOrientation(LinearLayout.VERTICAL);

        this.list = new ListView(this);

        this.adapter = new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, arr);
        this.list.setAdapter(adapter);
        this.list.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                // TODO Auto-generated method stub
                Toast.makeText(ArrayAdapterDemo.this,
                        ArrayAdapterDemo.this.arr[arg2], Toast.LENGTH_SHORT)
                        .show();
            }
        });
        this.layout.addView(list, Utils.match);
        super.addContentView(this.layout, Utils.match);
    }

}