学步园

android--widget介绍之AutoCompleteTextView

AutoCompleteTextView是一个自动匹配输入框，作用如名字一样，是提高用户体验的一个手段。功能很简单，只需要给它配一个Adapter就可以了。

如下图：

代码：

package com.my;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;

public class MainActivity extends Activity {

	private AutoCompleteTextView actv;
	private Button btn;

	private ArrayAdapter<String> arradapt;
	private String[] normalString = new String[] { "Android", "Android Blog",
			"Android Market", "Android SDK", "Android AVD", "BlackBerry",
			"BlackBerry JDE", "Symbian", "Symbian Carbide", "Java 2ME",
			"Java FX", "Java 2EE", "Java 2SE", "Mobile", "Motorola", "Nokia",
			"Sun", "Nokia Symbian", "Nokia forum", "WindowsMobile", "Broncho",
			"Windows XP", "Google", "Google Android ", "Google 浏览器", "IBM",
			"MicroSoft", "Java", "C++", "C", "C#", "J#", "VB" };

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		actv = (AutoCompleteTextView) findViewById(R.id.msg_actv);
		btn = (Button) findViewById(R.id.button1);
		arradapt = new ArrayAdapter<String>(this,
				android.R.layout.simple_dropdown_item_1line, normalString);
		actv.setAdapter(arradapt);

		btn.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View v) {
				actv.setText("");
			}
		});
	}
}