Android 自动补全提示输入AutoCompleteTextView、 MultiAutoCompleteTextView

package com.joan.testautocomletetextview;import android.R.array;import android.os.Bundle;import android.app.Activity;import android.content.res.Resources;import android.view.Menu;import android.widget.ArrayAdapter;import android.widget.AutoCompleteTextView;import android.widget.MultiAutoCompleteTextView;import android.widget.MultiAutoCompleteTextView.Tokenizer;public class MainActivity extends Activity { AutoCompleteTextView actv; MultiAutoCompleteTextView mactv; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  actv = (AutoCompleteTextView) findViewById(R.id.actv);  mactv = (MultiAutoCompleteTextView) findViewById(R.id.mactv);  // 取到Strings.xml中定义的数组  String[] names = this.getResources().getStringArray(R.array.names);  // 适配器  // 第三个参数是数据源  // 第二个参数是样式资源的id  ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,  android.R.layout.simple_expandable_list_item_1, names);  // =============只能选择单个的自动补全=====================  actv.setAdapter(adapter);  // =============可选择多个的自动补全=====================  // Tokenizer分词器，分解器  // MultiAutoCompleteTextView.CommaTokenizer();这个简易的分解器可用于对由逗号和若干空格分割的列表进行分解.  Tokenizer t = new MultiAutoCompleteTextView.CommaTokenizer();  mactv.setAdapter(adapter);  mactv.setTokenizer(t); }}

<?xml version="1.0" encoding="utf-8"?><resources> <string name="app_name">TestAutocompleteTextView</string> <string name="action_settings">Settings</string> <string name="hello_world">Hello world!</string> <!--定义一个数组 --> <string-array name="names">  <item >zhangyu</item>  <item >zhangxinzhe</item>  <item >zhangxingxing</item>  <item >liudehua</item>  <item >liuyi</item> </string-array></resources>

<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:orientation="vertical" > <TextView   android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:text="只可选择单个"  /> <!--AutoCompleteTextView 自动补全，只能选择一个值   android:completionThreshold="1" 输入第一个字后自动补全 --> <AutoCompleteTextView  android:id="@+id/actv"  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:hint="请输入搜索的名字"  android:completionThreshold="1"  /> <TextView   android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:text="可选择多个"  /> <!--MultiAutoCompleteTextView 可以选择多个值 --> <MultiAutoCompleteTextView   android:id="@+id/mactv"  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:hint="请输入搜索的名字"  android:completionThreshold="1"  /></LinearLayout>