AutoCompleteTextView的使用举例

代码如下：

AppMain.java

package lxy.litsoft;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.AutoCompleteTextView;public class AppMain extends Activity {AutoCompleteTextView autoCompleteTextView;List<String> list;ArrayAdapter<String> arrayAdapter;    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                //实例化AutoCompleteTextView对象        autoCompleteTextView = (AutoCompleteTextView)findViewById(R.id.autoComplete);        //实例化List对象并添加item        list = new ArrayList<String>();        list.add("liu_zhen_wei");        list.add("liu_zhen_wei_01");        list.add("liu_zhen_wei_02");        list.add("wang1");        list.add("wang2");        list.add("huohuo");        //实例化ArrayAdapter对象为AutoCompleteTextView提供数据        arrayAdapter = new ArrayAdapter<String>(this,R.layout.item,list);        //为AutoCompleteTextView添加适配器        autoCompleteTextView.setAdapter(arrayAdapter);    }}

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><AutoCompleteTextView    android:id="@+id/autoComplete"    android:layout_marginTop="100dip"    android:layout_marginLeft="30dip"    android:layout_marginRight="30dip"    android:layout_width="fill_parent"     android:layout_height="wrap_content" ></AutoCompleteTextView></LinearLayout>

item.mxl

<?xml version="1.0" encoding="utf-8"?><TextView  xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"     android:layout_height="fill_parent"     />

创建一个AutoCompleteTextView的步骤
1.在布局文件中声明一个AutoCompleteTextView
2.在res/layout文件夹下新建一个布局文件，名为list_item.xml确定AutoComleteTextView的提示样式
3.创建一个ArrayAdapter为AutoCompleteTextView提供数据
List<String> list = new ArrayList<String>();
list.add("abcd");
list.add("abdd");
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(
    this,R.layout.item,list);
4.为AutoCompleteTextView添加适配器

autoCompleteTextView.setAdapter(array Adapter);