Android学习——MultiAutoCompleteTextView组件

1.编辑activity_main.xml文件，添加MultiAutoCompleteTextView组件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/button" />
<!--
android:singleLine="true"设置单行显示，否则会自动换行
android:ellipsize="marquee"之后三个设置都是必须的
android:focusable="true"
android:focusableInTouchMode="true"
-->
    <TextView
        android:id="@+id/textView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/text" 
        android:singleLine="true"
        android:ellipsize="marquee"
        android:focusable="true"
        android:focusableInTouchMode="true"/>
<!-- 新添加的内容 -->
    <com.zyy.myapp.MyTextView
        android:id="@+id/textView2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/text" 
        android:singleLine="true"
        android:ellipsize="marquee"
        android:focusable="true"
        android:focusableInTouchMode="true"/>
    <com.zyy.myapp.MyTextView
        android:id="@+id/textView3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/text" 
        android:singleLine="true"
        android:ellipsize="marquee"
        android:focusable="true"
        android:focusableInTouchMode="true"/>
<!--新添加的内容-->
<!--
android:completionThreshold="1"输入一个字符之后自动匹配
-->
    <AutoCompleteTextView
        android:completionThreshold="1"
        android:id="@+id/autoCompleteTextView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="@string/hint" >

        <requestFocus />
    </AutoCompleteTextView>
<!--新添加的内容-->
<!--
android:completionThreshold="1"输入一个字符之后自动匹配
-->
    <MultiAutoCompleteTextView
        android:completionThreshold="1"
        android:id="@+id/multiAutoCompleteTextView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="@string/hint" />

</LinearLayout>

package com.zyy.myapp;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.MultiAutoCompleteTextView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener{
	//创建Button对象引用变量
	private Button loginButton;
	//创建AutoCompleteTextView对象引用变量
	private AutoCompleteTextView actv;
	//创建MultiAutoCompleteTextView对象引用变量
	private MultiAutoCompleteTextView mactv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //通过id获取对象，该对象是view类型，view是所有组件的父类,转化为Button对象需要进行强转
        loginButton = (Button)findViewById(R.id.button1);
        //添加事件监听
        /*loginButton.setOnClickListener(new OnClickListener(){
			@Override
			public void onClick(View v) {
				//此处不能只用this
				Toast.makeText(MainActivity.this, "哎呀，我被点了一下！", Toast.LENGTH_SHORT).show();
			}
        });*/
        /*loginButton.setOnClickListener(new MyOnClickListener());*/
        loginButton.setOnClickListener(this);
//---AutoCompleteTextView组件---
        //获取AutoCompleteTextView对象
        actv = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
        //创建数组适配器对象
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this,
        		R.layout.support_simple_spinner_dropdown_item,
        		new String[]{
        		"张玉尧", "张秀琼", "张馨月", "吴杰"
        });
        //向AutoCompleteTextView对象添加数组适配器
        actv.setAdapter(adapter);
//---MultiAutoCompleteTextView组件---
        //获取MultiAutoCompleteTextView对象
        mactv = (MultiAutoCompleteTextView)findViewById(R.id.multiAutoCompleteTextView1);
        //向MultiAutoCompleteTextView对象添加数组适配器
        mactv.setAdapter(adapter);
        //设置分割标志，实现多次自动补全
        mactv.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
    }
	@Override
	public void onClick(View v) {
		Toast.makeText(MainActivity.this, "哎呀，怎么老是点我啊！", Toast.LENGTH_SHORT).show();
	}
}

/*class MyOnClickListener implements OnClickListener{
	@Override
	public void onClick(View v) {
		//这个地方出现问题，最后用v.getContext()解决
		Toast.makeText(v.getContext(), "哎呀，我又被点了一下！", Toast.LENGTH_SHORT).show();
	}
}
*/