Android 之 ListView使用ArrayAdapter展現列表

ListView是開發過程當中用得最多的列表組件。

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);
	}

}