package com.example.autocomplete; import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.widget.ArrayAdapter;import android.widget.AutoCompleteTextView;import android.widget.MultiAutoCompleteTextView; public class MainActivity extends Activity { private AutoCompleteTextView acTextView; private String[] res = {"xxz1","xxz2","xxz3","shanghai1","shanghai2"};   private MultiAutoCompleteTextView MulacTextView;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    acTextView = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1);        //需要適配器    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,res);    //初始數據源，去匹配文本框中輸入的內容,然后綁定    acTextView.setAdapter(adapter);        MulacTextView = (MultiAutoCompleteTextView) findViewById(R.id.multiAutoCompleteTextView1);    MulacTextView.setAdapter(adapter);    //設置以逗號為分隔符結束的符號    MulacTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());       }

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:orientation="vertical" >   <AutoCompleteTextView    android:hint="請輸入搜索的關鍵詞"    android:completionThreshold="3"    android:id="@+id/autoCompleteTextView1"    android:layout_width="match_parent"    android:layout_height="wrap_content"     >   </AutoCompleteTextView>   <MultiAutoCompleteTextView    android:hint="請輸入搜索的郵件關鍵詞"    android:id="@+id/multiAutoCompleteTextView1"    android:layout_width="match_parent"    android:layout_height="wrap_content" >      </MultiAutoCompleteTextView>   <CheckBox    android:id="@+id/checkBox1"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:text="CheckBox" /> </LinearLayout>