android 常用控件 （AutoCompleteTextView） （MultiAutoCompleteTextView）

<RelativeLayout 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:paddingBottom="0dp"    android:paddingLeft="0dp"    android:paddingRight="0dp"    android:paddingTop="0dp"    tools:context=".MainActivity" >    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical" >        <AutoCompleteTextView            android:id="@+id/buchongxianshi"            android:layout_width="match_parent"            android:layout_height="wrap_content" />        <MultiAutoCompleteTextView            android:id="@+id/xialatishi"            android:layout_width="match_parent"            android:layout_height="wrap_content" />    </LinearLayout></RelativeLayout>

package com.example.mytool;import java.util.Calendar;import android.os.Bundle;import android.app.Activity;import android.content.DialogInterface;import android.content.DialogInterface.OnClickListener;import android.view.Menu;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.ArrayAdapter;import android.widget.AutoCompleteTextView;import android.widget.Button;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.DatePicker;import android.widget.DatePicker.OnDateChangedListener;import android.widget.EditText;import android.widget.ImageView;import android.widget.MultiAutoCompleteTextView;import android.widget.RadioButton;import android.widget.Spinner;import android.widget.TextView;import android.widget.TimePicker;import android.widget.TimePicker.OnTimeChangedListener;import android.widget.Toast;import android.widget.ToggleButton;public class MainActivity extends Activity {private AutoCompleteTextView atx;private MultiAutoCompleteTextView mtx;private static final String[] cities=new String[]        {"FuZhou", "XiaMen", "NiDe", "PuTian","QuanZhou", "ZhangZhou", "LongYan", "SanMing","NanPing"};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);atx=(AutoCompleteTextView)this.findViewById(R.id.buchongxianshi);mtx=(MultiAutoCompleteTextView)this.findViewById(R.id.xialatishi);ArrayAdapter<String> apr=new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,cities);atx.setAdapter(apr);atx.setThreshold(2);mtx.setAdapter(apr);mtx.setThreshold(2);mtx.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}