1 package com.example.spinner_project;
2
3 import android.os.Bundle;
4 import android.app.Activity;
5 import android.view.Menu;
6 import android.view.View;
7 import android.widget.AdapterView;
8 import android.widget.AdapterView.OnItemSelectedListener;
9 import android.widget.Spinner;
10 import android.widget.Toast;
11
12 public class MainActivity extends Activity {
13
14 //创建spinner对象
15 Spinner sp1;
16 Spinner sp2;
17 @Override
18 protected void onCreate(Bundle savedInstanceState) {
19 super.onCreate(savedInstanceState);
20 setContentView(R.layout.activity_main);
21 sp1=(Spinner) findViewById(R.id.sp_1);
22 sp2=(Spinner) findViewById(R.id.sp_2);
23 /*@Param String[] str1
24 * 获取spinner1中的选项数组，注意getresource()方法的使用范围
25 * String[] str2
26 * 获取spinner1中的选项数组
27 *获取sp1的setOnItemSelectedListener监听对象以此来获取spinner选择的内容
28 * */
29 final String[] str1=this.getResources().getStringArray(R.array.spinner_array1);
30 final String[] str2=this.getResources().getStringArray(R.array.spinner_array2);
31 sp1.setOnItemSelectedListener(new OnItemSelectedListener() {
32
33 /*
34 * @Param AdapterView<?> parent 是Spinnner对象
35 * View view 是视图对象可以直接获取选择的内容
36 * int position, long id 均是所选内容的位置或者id
37 * */
38 @Override
39 public void onItemSelected(AdapterView<?> parent, View view,
40 int position, long id) {
41 Toast.makeText(MainActivity.this,"选择的班级是"+str1[(int) id], Toast.LENGTH_LONG).show();
42
43 }
44
45 @Override
46 public void onNothingSelected(AdapterView<?> parent) {
47 // TODO Auto-generated method stub
48
49 }
50
51 });
52 sp2.setOnItemSelectedListener(new OnItemSelectedListener() {
53
54 /*
55 * @Param AdapterView<?> parent 是Spinnner对象
56 * View view 是视图对象可以直接获取选择的内容
57 * int position, long id 均是所选内容的位置或者id
58 * */
59 @Override
60 public void onItemSelected(AdapterView<?> parent, View view,
61 int position, long id) {
62 Toast.makeText(MainActivity.this,"选择的人数是"+str2[(int) id], Toast.LENGTH_LONG).show();
63
64 }
65
66 @Override
67 public void onNothingSelected(AdapterView<?> parent) {
68 // TODO Auto-generated method stub
69
70 }
71
72 });
73 }
74
75
76
77 }
78 //xml文件、、、、、、、、、、、、
79 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
80 xmlns:tools="http://schemas.android.com/tools"
81 android:layout_width="match_parent"
82 android:layout_height="match_parent"
83 android:orientation="horizontal"
84 android:gravity="center">
85
86 <TextView
87 android:layout_width="wrap_content"
88 android:layout_height="wrap_content"
89 android:text="班级"
90 />
91 <Spinner
92 android:id="@+id/sp_1"
93 android:layout_width="100dp"
94 android:layout_height="wrap_content"
95 android:entries="@array/spinner_array1" />
96 <TextView
97 android:layout_width="wrap_content"
98 android:layout_height="wrap_content"
99 android:text="人数"
100 />
101 <Spinner
102 android:id="@+id/sp_2"
103 android:layout_width="100dp"
104 android:layout_height="wrap_content"
105 android:entries="@array/spinner_array2" />
106
107
108 </LinearLayout>
109 ////////////////////////////string
110 <?xml version="1.0" encoding="utf-8"?>
111 <resources>
112
113 <string name="app_name">Spinner_Project</string>
114 <string name="action_settings">Settings</string>
115 <string name="hello_world">Hello world!</string>
116
117 <string-array name="spinner_array1">
118 <item >安卓1期</item>
119 <item >安卓2期</item>
120 <item >安卓3期</item>
121 <item >安卓4期</item>
122 <item >安卓5期</item>
123 <item >安卓6期</item>
124 <item >安卓7期</item>
125 <item >安卓8期</item>
126 <item >安卓9期</item>
127 <item >安卓10期</item>
128 </string-array>
129 <string-array name="spinner_array2">
130 <item >20人</item>
131 <item >20-30人</item>
132 <item >30-40人</item>
133 <item >40-50人</item>
134 <item >50-60人</item>
135
136 </string-array>
137
138 </resources>
