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"};

@Override
protected 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());
}

@Override
public 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;
}

}