<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.lumeng.myapplication.MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="120dp"
        android:id="@+id/layout_one"
        android:layout_marginTop="10dp"
        android:layout_gravity="center"
        android:orientation="vertical">
        <Spinner
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/spinner_one"
            android:layout_weight="1"
            android:entries="@array/drink">
        </Spinner>

        <Spinner
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/spinner_two"
            android:layout_weight="1">
        </Spinner>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_marginTop="200dp"
        android:layout_gravity="center"
        android:orientation="vertical">

        <Button
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/bt"
            android:text="@string/order"
            android:textSize="30dp"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="250dp"
        android:layout_gravity="center"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/tx"
            android:textSize="30dp"/>

    </LinearLayout>

</RelativeLayout>

<resources>
    <string name="app_name">My Application</string>

    <string name="order">订单</string>
    <string-array name="drink">
        <item>贝壳奶茶</item>
        <item>波波奶茶</item>
        <item>青草奶茶</item>
        <item>辣椒奶茶</item>
        <item>清水奶茶</item>
    </string-array>
</resources>

package com.example.lumeng.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {

    Spinner drink,tem;
    TextView txv;
    Button bt;

    String [] tem_1={"冰","去冰","温"};
    String [] tem_2={"冰","去冰"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        txv = (TextView) findViewById(R.id.tx);
        tem=(Spinner) findViewById(R.id.spinner_two);//获取温度的spinner

        drink= (Spinner) findViewById(R.id.spinner_one);//获取饮料的spinner

        drink.setOnItemSelectedListener(this);

    }

    //监听spinner选项
    @Override
    public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
        String [] temSet;
        if(i==3)
            temSet=tem_1;//如果是点击第４个选取这个温度
        else
            temSet=tem_2;//别的选取这个温度

        //根据温度选项创建ArrayAdapter
        ArrayAdapter<String> tempAd = new ArrayAdapter<String>
                (this,android.R.layout.simple_dropdown_item_1line,temSet);//选单未打开时选项样式

        tem.setAdapter(tempAd);  //设置使用Adapter对象
    }

    @Override
    public void onNothingSelected(AdapterView<?> adapterView) {

    }
}