上海宝山区邮编,猪猪侠之百变联盟全集,玉女何求
1 <?xml version="1.0" encoding="utf-8"?> 2 <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:tools="http://schemas.android.com/tools" 4 android:layout_width="match_parent" 5 android:layout_height="match_parent" 6 android:orientation="horizontal" 7 tools:context=".mainactivity"> 8 9 <spinner 10 android:id="@+id/spinner1" 11 android:layout_width="wrap_content" 12 android:layout_height="wrap_content" 13 android:layout_margintop="5dp" 14 android:layout_weight="1" /> 15 16 <spinner 17 android:id="@+id/spinner2" 18 android:layout_width="wrap_content" 19 android:layout_height="wrap_content" 20 android:layout_margintop="5dp" 21 android:layout_weight="1" /> 22 23 <spinner 24 android:id="@+id/spinner3" 25 android:layout_width="wrap_content" 26 android:layout_height="wrap_content" 27 android:layout_margintop="5dp" 28 android:layout_weight="1" /> 29 30 </linearlayout>
我要评论 1 package com.example.spinner;
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.arrayadapter;
10 import android.widget.spinner;
11 import android.widget.textview;
12 import android.widget.toast;
13
14 public class mainactivity extends activity {
15
16 private stringbuffer stringbuffer;
17 protected string str3;
18 protected string str2;
19 protected string str1;
20
21
22 @override
23 protected void oncreate(bundle savedinstancestate) {
24 super.oncreate(savedinstancestate);
25 setcontentview(r.layout.activity_spinner);
26
27 stringbuffer = new stringbuffer();
28
29 //获取界面布局文件中的spinner组件
30 spinner spinner1 = (spinner) findviewbyid(r.id.spinner1);
31 spinner spinner2 = (spinner) findviewbyid(r.id.spinner2);
32 spinner spinner3 = (spinner) findviewbyid(r.id.spinner3);
33
34 //字符串数组
35 string[] stringarr1 = {"机器人学院","智慧城市学院","特教学院","城市轨道交通学院"};
36 string[] stringarr2 = {"软件工程","机械工程","机器人工程","人工智能"};
37 string[] stringarr3 = {"2016级","2017级","2018级","2019级"};
38
39 //创建arrayadapter对象
40 arrayadapter<string> adapter1 = new arrayadapter(mainactivity.this,android.r.layout.simple_spinner_item,stringarr1);
41 arrayadapter<string> adapter2 = new arrayadapter(mainactivity.this,android.r.layout.simple_spinner_item,stringarr2);
42 arrayadapter<string> adapter3 = new arrayadapter(mainactivity.this,android.r.layout.simple_spinner_item,stringarr3);
43
44 //为spinner1设置adapter
45 spinner1.setadapter(adapter1);
46
47 //为spinner1设置选中事件监听器
48 spinner1.setonitemselectedlistener(new onitemselectedlistener(){
49
50 @override
51 public void onitemselected(adapterview<?> parent, view view,
52 int position, long id) {
53 // todo auto-generated method stub
54
55 textview tv = (textview) view;
56 str1 = tv.gettext().tostring();
57 add();
58
59 }
60
61 @override
62 public void onnothingselected(adapterview<?> parent) {
63 // todo auto-generated method stub
64
65 }
66
67 } );
68
69 //为spinner2设置adapter
70 spinner2.setadapter(adapter2);
71
72 //为spinner2设置选中事件监听器
73 spinner2.setonitemselectedlistener(new onitemselectedlistener(){
74
75 @override
76 public void onitemselected(adapterview<?> parent, view view,
77 int position, long id) {
78 // todo auto-generated method stub
79
80 textview tv = (textview) view;
81 str2 = tv.gettext().tostring();
82 add();
83 }
84
85 @override
86 public void onnothingselected(adapterview<?> parent) {
87 // todo auto-generated method stub
88
89 }
90
91 });
92
93 //为spinner3设置adapter
94 spinner3.setadapter(adapter3);
95
96 //为spinner3设置选中事件监听器
97 spinner3.setonitemselectedlistener(new onitemselectedlistener(){
98
99 @override
100 public void onitemselected(adapterview<?> parent, view view,
101 int position, long id) {
102 // todo auto-generated method stub
103
104 textview tv = (textview) view;
105 str3 = tv.gettext().tostring();
106 add();
107
108 }
109
110 @override
111 public void onnothingselected(adapterview<?> parent) {
112 // todo auto-generated method stub
113
114 }
115
116 });
117
118 }
119
120
121 protected void add() {
122 // todo auto-generated method stub
123 stringbuffer.delete(0, stringbuffer.length());
124 show(str1,str2,str3);
125 toast.maketext(mainactivity.this, stringbuffer, toast.length_long)
126 .show();
127 }
128
129
130 private void show(string str1, string str2, string str3) {
131 // todo auto-generated method stub
132 stringbuffer.append(str1).append("--");
133 stringbuffer.append(str2).append("--");
134 stringbuffer.append(str3);
135 }
136
137
138 @override
139 public boolean oncreateoptionsmenu(menu menu) {
140 // inflate the menu; this adds items to the action bar if it is present.
141 getmenuinflater().inflate(r.menu.main, menu);
142 return true;
143 }
144
145 }
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