Android AutoCompleteTextView自动提示文本框实例代码

<LinearLayout 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:gravity="center" 
android:orientation="vertical" > 
<AutoCompleteTextView 
android:id="@+id/actv_game" 
android:layout_width="220dp" 
android:layout_height="wrap_content" 
android:completionHint="@string/game_" 
android:completionThreshold="1" 
android:hint="@string/game" /> 
<AutoCompleteTextView 
android:id="@+id/actv_car" 
android:layout_width="220dp" 
android:layout_height="wrap_content" 
android:completionHint="@string/car_" 
android:completionThreshold="1" 
android:hint="@string/car" /> 
<Button 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:layout_margin="10dp" 
android:onClick="getValue" 
android:text="@string/button" /> 
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?> 
<resources> 
<string name="app_name">actv_demo</string> 
<string name="action_settings">Settings</string> 
<string name="hello_world">Hello world!</string> 
<string name="game">游戏</string> 
<string name="car">车</string> 
<string name="game_">请选择你喜欢的游戏</string> 
<string name="car_">请选择你喜欢的车</string> 
<string name="button">获取文本框的值</string> 
<string-array name="games"> 
<item>魔兽</item> 
<item>魔兽1</item> 
<item>魔兽2</item> 
<item>仙剑</item> 
<item>仙剑1</item> 
<item>仙剑2</item> 
<item>CS</item> 
<item>CS1</item> 
<item>CS2</item> 
<item>CF</item> 
<item>CF1</item> 
<item>CF2</item> 
<item>DNF</item> 
<item>DNF1</item> 
<item>DNF2</item> 
<item>传奇</item> 
<item>传奇1</item> 
<item>传奇2</item> 
<item>天下</item> 
<item>天下1</item> 
<item>天下2</item> 
</string-array> 
</resources>

package com.yx.actv_demo.ui; 
import java.util.ArrayList; 
import java.util.List; 
import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ArrayAdapter; 
import android.widget.AutoCompleteTextView; 
import android.widget.Toast; 
import com.yx.actv_demo.R; 
/** 
* 
* 此类描述的是: 主界面 
* 
* @author: CS YX 
* @version:1.0 
* @date:2014-10-24 下午3:47:38 
*/ 
public class MainActivity extends Activity { 
// 游戏文本框 
private AutoCompleteTextView actv_game; 
// 游戏文本框适配器 
private ArrayAdapter<CharSequence> gameAdapter; 
// 车 
private AutoCompleteTextView actv_car; 
private ArrayAdapter<String> carAdapter; 
private List<String> cars;// 集合数据 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main); 
initView();// 初始化控件 
initData();// 初始化数据 
// 实例化适配器 （从xml中拿取数据） 
gameAdapter = ArrayAdapter.createFromResource(MainActivity.this, 
R.array.games, android.R.layout.simple_spinner_item); 
// 绑定适配器显示数据 
actv_game.setAdapter(gameAdapter); 
// 实例化适配器 从数组或集合中拿去数据 
carAdapter = new ArrayAdapter<String>(MainActivity.this, 
android.R.layout.simple_spinner_item, cars); 
// 绑定适配器显示数据 
actv_car.setAdapter(carAdapter); 
} 
/** 
* 
* 此方法描述的是： 获取文本框的值 
* 
* @param view 
* view对象 
*/ 
public void getValue(View view) { 
String game = ""; 
if (actv_game != null) { 
game = actv_game.getText().toString();//获取文本框的值 
} 
String car = ""; 
if (actv_car != null) { 
car = actv_car.getText().toString();//获取文本框的值 
} 
Toast.makeText(MainActivity.this, "喜欢的游戏是：" + game + " 喜欢的车是：" + car, 
Toast.LENGTH_LONG).show(); 
} 
/** 
* 
* 此方法描述的是： 初始化数据 
*/ 
private void initData() { 
cars = new ArrayList<String>(); 
for (int i = 0; i < 5; i++) { 
cars.add("宝马-" + i); 
cars.add("奔驰-" + i); 
cars.add("悍马-" + i); 
cars.add("路虎-" + i); 
cars.add("吉普-" + i); 
cars.add("奥迪-" + i); 
cars.add("福特-" + i); 
cars.add("英菲尼迪-" + i); 
} 
} 
/** 
* 
* 此方法描述的是： 初始化控件 
*/ 
private void initView() { 
actv_game = (AutoCompleteTextView) findViewById(R.id.actv_game); 
actv_car = (AutoCompleteTextView) findViewById(R.id.actv_car); 
} 
}

ArrayAdapter.createFromResource(context, textArrayResId, textViewResId); 
context Context对象 
textArrayResId 数据集合ID 
textViewResId Layout ID

new ArrayAdapter<String>(context, resource, objects); 
context Context对象 
resource Layout ID 
objects 数据集合

actv_game.setAdapter(gameAdapter); 
actv_car.setAdapter(carAdapter);