Android-AutoCompleteTextView

package com.example.fang.text4;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;

public class MainActivity extends AppCompatActivity {
private AutoCompleteTextView acTextView;
private  String[] res = {"beijing1","beijing2","beijing3"};
@Override

protected void onCreate(Bundle savedInstanceState) {
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--这数据源去匹配文本框的数据内容
//第四步将adpter与当前控件绑定
acTextView = ( AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
ArrayAdapter<String>adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,res);
acTextView.setAdapter(adapter);
}
}

<AutoCompleteTextView

android:completionThreshold="3"
android:hint="请输入你要搜索的关键词"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="51dp"
android:layout_marginStart="51dp"
android:layout_marginTop="14dp"
android:id="@+id/autoCompleteTextView1" />

MultiAutoCompleteTextView（增加逗号分隔符）

protected void onCreate(Bundle savedInstanceState) {
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--这数据源去匹配文本框的数据内容
//第四步将adpter与当前控件绑定
acTextView = ( AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
ArrayAdapter<String>adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,res);
acTextView.setAdapter(adapter);

macTextview = (MultiAutoCompleteTextView)findViewById(R.id.multiAutoCompleteTextView);
macTextview.setAdapter(adapter);
macTextview.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
}
}