从零开始学android<AutoCompleteTextView随笔提示文本框.十九.>

<span style="font-size:18px;"><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <AutoCompleteTextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </AutoCompleteTextView>

</RelativeLayout></span>

<span style="font-size:18px;">package com.example.autocompleteterxtview;

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.AutoCompleteTextView;
import android.widget.Toast;

public class MainActivity extends Activity {
	private AutoCompleteTextView autoCompleteTextView=null;// 创建AutoCompleteTextView对象
	private static final String data[] = { "风飞雪未扬", "风飞了", "风飞雨", "风飞暴雨", "风来了啊" };// 设置数据集

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		super.setContentView(R.layout.activity_main);
		autoCompleteTextView = (AutoCompleteTextView) this
				.findViewById(R.id.text);// 实例化对象
		// 创建adapter 存储数据设置显示方式，后面在讲解ListView组件时会进行具体的讲解
		ArrayAdapter<String> adapter = new ArrayAdapter<String>(
				this, android.R.layout.simple_dropdown_item_1line,
				data);
		this.autoCompleteTextView.setAdapter(adapter);//单击事件的设置。以后会进行讲解，在这里主要是为了试验该组件的方法
		this.autoCompleteTextView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "您选择了"+data[position], 2).show();//提示组件，提示信息
			}

		});
	}
}
</span>