//activity_main.xml

<LinearLayoutxmlns: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"tools:context="com.vincentlin.completetextview.MainActivity"><AutoCompleteTextViewandroid:id="@+id/autoCompleteTextView1"android:layout_width="match_parent"android:layout_height="wrap_content"android:completionThreshold="2"android:hint="@string/autoCompleteTextView"><requestFocus/></AutoCompleteTextView><MultiAutoCompleteTextViewandroid:id="@+id/multiAutoCompleteTextView1"android:layout_width="match_parent"android:layout_height="wrap_content"android:hint="@string/multiAutoCompleteTextView"/></LinearLayout>

//strings.xml

<?xmlversion="1.0"encoding="utf-8"?><resources><stringname="app_name">CompleteTextView</string><stringname="hello_world">Helloworld!</string><stringname="action_settings">Settings</string><stringname="autoCompleteTextView">请输入你要搜索的关键字</string><stringname="multiAutoCompleteTextView">请输入你的收件</string></resources>

//MainActivity.java

packagecom.vincentlin.completetextview;importandroid.R.anim;importandroid.app.Activity;importandroid.os.Bundle;importandroid.view.Menu;importandroid.view.MenuItem;importandroid.widget.ArrayAdapter;importandroid.widget.AutoCompleteTextView;importandroid.widget.MultiAutoCompleteTextView;publicclassMainActivityextendsActivity{privateAutoCompleteTextViewacTextView;privateMultiAutoCompleteTextViewmuTextView;privateString[]res={"guangzhou1","guangzhou2","guangzhou3","nanjing1","shanghai1"};@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);/**第一步：初始化控件*第二步：需要一个适配器*第三步：初始化数据源--将数据源匹配文本框输入的内容*第四步：将adapter与当前AutoCompleteTextView绑定*/acTextView=(AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);ArrayAdapter<String>adapter=newArrayAdapter<String>(this,android.R.layout.simple_list_item_1,res);acTextView.setAdapter(adapter);/**可支持选择多个值，分别用分隔符分开，自动匹配，可用于发信息或发邮件时选择联系人这种类型*第一步：初始化控件*第二步：需要一个适配器*第三步：初始化数据源--将数据源匹配文本框输入的内容*第四步：将adapter与当前AutoCompleteTextView绑定*第五步：设置分隔符*/muTextView=(MultiAutoCompleteTextView)findViewById(R.id.multiAutoCompleteTextView1);muTextView.setAdapter(adapter);//设置以逗号为分隔符的结束符号muTextView.setTokenizer(newMultiAutoCompleteTextView.CommaTokenizer());}}

//效果图