首先说明AutoCompleteTextView的使用方法。主要是起到自己主动填充的作用。输入keyword，假设存在该字便能够自己主动填充。代码例如以下

activity_main.xml

<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:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <AutoCompleteTextView

        android:id="@+id/autotextview"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:completionHint="请选择喜欢的图书"

        android:textColor="#000000"

        android:completionThreshold="1"

        />

    <Button

        android:id="@+id/btn_spinner"

        android:layout_centerVertical="true"

        android:layout_centerHorizontal="true"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Spinner 界面"/>

</RelativeLayout>

MianActivity.java

package lzl.edu.com.autocomplete;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.AutoCompleteTextView;

import android.widget.Button;

public class MainActivity extends Activity {

    private AutoCompleteTextView autoTextView;

    private Button btn_spinner;

    String[] books = {"从你的全世界路过","荆棘鸟","老人与海","第一行代码","我们从未陌生过"};

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        autoTextView = (AutoCompleteTextView)findViewById(R.id.autotextview);

        btn_spinner = (Button)findViewById(R.id.btn_spinner);

        // android.R.layout.simple_dropdown_item_1line 系统提供的自己主动填充的方法。

        ArrayAdapter<String> aa = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,books);

        autoTextView.setAdapter(aa);

        btn_spinner.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent intent = new Intent(MainActivity.this,BookeSpinner.class);

                startActivity(intent);

            }

        });

    }

}

Spinner通常和arrays.xml结合集合使用。在value目录下创建arrays.xml文件。

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string-array name="books">

        <item>从你的全世界路过</item>

        <item>你好,世界</item>

        <item>JAVA疯狂讲义</item>

        <item>第一行代码</item>

        <item>荆棘鸟</item>

    </string-array>

</resources>

在xml文件里建立Spinner标签

<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:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    tools:context="lzl.edu.com.autocomplete.BookeSpinner">

    <Spinner

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:entries="@array/books"

        >

    </Spinner>

</RelativeLayout>

Activity中增加布局就能够了

package lzl.edu.com.autocomplete;

import android.app.Activity;

import android.os.Bundle;

public class BookeSpinner extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_booke_spinner);

    }

}

Spinnner结合Adapter的使用

BooksActivity.java

package lzl.edu.com.autocomplete;

import android.app.Activity;

import android.graphics.Color;

import android.os.Bundle;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.Spinner;

import android.widget.TextView;

public class BookeSpinner extends Activity {

    Spinner spinnerbooks;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_booke_spinner);

        spinnerbooks = (Spinner)findViewById(R.id.spinnerbooks);

        BaseAdapter ba = new BaseAdapter() {

            @Override

            public int getCount() {

                return 100;

            }

            @Override

            public Object getItem(int position) {

                return position;

            }

            @Override

            public long getItemId(int position) {

                return position;

            }

            @Override

            public View getView(int position, View convertView, ViewGroup parent) {

            TextView textView = new TextView(BookeSpinner.this);

                textView.setText("第"+position+"本书");

                textView.setTextColor(Color.rgb(240, 200, 100));

                textView.setTextSize(20);

                return textView;

            }

        };

        spinnerbooks.setAdapter(ba);

    }

}

xml布局文件

<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:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    tools:context="lzl.edu.com.autocomplete.BookeSpinner">

    <Spinner

        android:id="@+id/spinnerbooks"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        >

    </Spinner>

</RelativeLayout>