package com.kale.spinner;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.ArrayAdapter;import android.widget.Spinner;import android.widget.Toast;public class MainActivity extends Activity {    Spinner spinner01,spinner02,spinner03;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        viewInit();        String []arr = {"JAVA","Android","xml","ios"};                //采用android提供的布局来创建        ArrayAdapter<String> adapter01 = new ArrayAdapter<>(this,                 android.R.layout.simple_list_item_multiple_choice,arr);        spinner01.setAdapter(adapter01);        //监听器        spinner01.setOnItemSelectedListener(new OnItemSelectedListener() {            @Override            public void onItemSelected(AdapterView<?> adapterView, View arg1,                    int position, long id) {                // TODO 自动生成的方法存根                String selected = adapterView.getItemAtPosition(position).toString();                Toast.makeText(getApplicationContext(), selected, 0).show();            }            @Override            public void onNothingSelected(AdapterView<?> arg0) {            }        });        //------------------------------------------------------------------------------                //默认的布局文件设置spinner的样式，用写死的数据来创建的。不是很推荐        ArrayAdapter<CharSequence> adapter02 = ArrayAdapter.createFromResource(this,                 R.array.item, android.R.layout.simple_spinner_item);        //设置spinner点开后下拉菜单的样式        adapter02.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);        spinner02.setAdapter(adapter02);        //spinner02.setPrompt("test");//设置提示文字,现在的界面中已经不显示了。所以可以说是没用了        //------------------------------------------------------------------------------        //采用动态的数据，布局文件是自己定义的item        ArrayAdapter<String> adapter03 = new ArrayAdapter<>(this, R.layout.item,                R.id.textView_id, arr);        spinner03.setAdapter(adapter03);    }    private void viewInit() {        spinner01 = (Spinner) findViewById(R.id.spinner01_id);        spinner02 = (Spinner) findViewById(R.id.spinner02_id);        spinner03 = (Spinner) findViewById(R.id.spinner03_id);    }}

<LinearLayout 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:orientation="vertical"    android:padding="16dp">    <!--     android:dropDownWidth                  下拉列表宽度    android:dropDownHorizontalOffset    下拉列表距离左边的距离    android:dropDownVerticalOffset      下拉菜单和文本之间的垂直偏移量    android:popupBackground              下拉列表中的背景色    android:prompt                         下拉列表中的提示信息         -->    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="用代码填充数据的spinner(用android自带的布局)"        android:layout_marginTop="16dp"        android:textAppearance="?android:attr/textAppearanceMedium" />    <Spinner        android:id="@+id/spinner01_id"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:popupBackground="#ade9ee"        android:dropDownVerticalOffset="3dp"         android:prompt="@string/hello_world"/>        <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="数据写到array中的spinner（用android提供的布局）"        android:layout_marginTop="26dp"        android:textAppearance="?android:attr/textAppearanceMedium" />        <Spinner        android:id="@+id/spinner02_id"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="16dp"        android:dropDownVerticalOffset="3dp"         android:prompt="@string/hello_world"/>            <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="使用自定义布局并动态填入数据的spinner"        android:layout_marginTop="26dp"        android:textAppearance="?android:attr/textAppearanceMedium" />        <Spinner        android:id="@+id/spinner03_id"        android:layout_width="match_parent"        android:layout_height="wrap_content"/>     </LinearLayout>

<?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"     android:padding="8dp">    <TextView        android:id="@+id/textView_id"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Large Text"        android:textColor="#0000ff"        android:gravity="center_horizontal"        android:textAppearance="?android:attr/textAppearanceLarge" /></LinearLayout>