刚开始有个任务就是做一个九宫格界面，后来有个任务就是实现点击每个格并跳转界面实现每个格的功能。下面我就介绍一下我是如何实现该功能的
首先写一下我的想法是：
登录成功后显示一个九宫格界面，每个九宫格的每一个都是一个功能模块，当点击每个模块时，就会跳转到相应的界面并实现该模块所具备的功能。
下面是以"综合实践管理系统"这个格来实现的，当我们点击该按钮时，他就会跳转到"学生综合实践模块积分申请表"这个界面然后我们通过下拉菜单选择自己想要申请的项目。然后点击"下一步"我们就跳转到补充信息这个界面了，实现上传照片还有补充信息这个功能界面。
第二步：跳转到下面这个界面
第三步点击下一步跳转到完善信息这个界面
点击加号上传你要加分的证明图片，这个照片可以调用相机照也可以是从相册中获取
点击从相册中获取会
下面就是我用到的控件及控件的用法。
1 package com.itcast.test03;
3 import java.util.ArrayList;
4 import java.util.HashMap;
6 import android.os.Bundle;
7 import android.app.Activity;
8 import android.content.Intent;
9 import android.view.Menu;
10 import android.view.View;
11 import android.view.ViewGroup;
12 import android.widget.AdapterView;
13 import android.widget.AdapterView.OnItemClickListener;
14 import android.widget.BaseAdapter;
15 import android.widget.GridView;
16 import android.widget.ImageView;
17 import android.widget.SimpleAdapter;
18 import android.widget.TextView;
19 import android.widget.Toast;
20
21 public class StudentMainActivity extends Activity {
22 private GridView gridview;
23
24 @Override
25 protected void onCreate(Bundle savedInstanceState) {
26 super.onCreate(savedInstanceState);
27 setContentView(R.layout.activity_student_main);
28 gridview = (GridView)findViewById(R.id.gridView1);
29 ArrayList<HashMap<String,Object>> lstImageItem = new ArrayList<HashMap<String,Object>>();
30 for(int i = 1;i<20;i++){
31 HashMap<String,Object> map = new HashMap<String, Object>();
32 if(i==1){
33 map.put("ItemImage", R.drawable.ic_launcher02);
34 map.put("ItemText", "实践教学管理系统");
35
36 }else if(i==2){
37 map.put("ItemImage", R.drawable.ic_launcher06);
38 map.put("ItemText", "毕业设计管理系统");
39
40 }else if(i==3){
41 map.put("ItemImage", R.drawable.ic_launcher02);
42 map.put("ItemText", "开放实验管理系统");
43
44 }else if(i==4){
45 map.put("ItemImage", R.drawable.ic_launcher03);
46 map.put("ItemText", "实习实训管理系统");
47
48 }else if(i==5){
49 map.put("ItemImage", R.drawable.ic_launcher05);
50 map.put("ItemText", "班级事务管理系统");
51
52 }else if(i==6){
53 map.put("ItemImage", R.drawable.ic_launcher06);
54 map.put("ItemText", "综合实践管理系统");
55
56 }else if(i==7){
57 map.put("ItemImage", R.drawable.ic_launcher04);
58 map.put("ItemText", "其他事物2管理系统");
59
60 }else if(i==8){
61 map.put("ItemImage", R.drawable.ic_launcher08);
62 map.put("ItemText", "其他事物3管理系统");
63
64 }else if(i==9){
65 map.put("ItemImage", R.drawable.ic_launcher01);
66 map.put("ItemText", "其他事物4管理系统");
67
68 }else if(i==10){
69 map.put("ItemImage", R.drawable.ic_launcher02);
70 map.put("ItemText", "开放实验管理系统");
71
72 }else if(i==11){
73 map.put("ItemImage", R.drawable.ic_launcher03);
74 map.put("ItemText", "实习实训管理系统");
75
76 }else if(i==12){
77 map.put("ItemImage", R.drawable.ic_launcher05);
78 map.put("ItemText", "班级事务管理系统");
79
80 }else if(i==13){
81 map.put("ItemImage", R.drawable.ic_launcher06);
82 map.put("ItemText", "综合实践管理系统");
83
84 }else if(i==14){
85 map.put("ItemImage", R.drawable.ic_launcher04);
86 map.put("ItemText", "其他事物2管理系统");
87
88 }else if(i==15){
89 map.put("ItemImage", R.drawable.ic_launcher08);
90 map.put("ItemText", "其他事物3管理系统");
91
92 }else if(i==16){
93 map.put("ItemImage", R.drawable.ic_launcher01);
94 map.put("ItemText", "其他事物4管理系统");
95
96 }
97 lstImageItem.add(map);
98 }
99 SimpleAdapter saImageItems = new SimpleAdapter(this,
100 lstImageItem,R.layout.next_activity_student_main,
101 new String[]{"ItemImage","ItemText"},
102 new int[] {R.id.ItemImage,R.id.ItemText});
103 gridview.setAdapter(saImageItems);
104 gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
105 public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
106 long arg3) {
107 int index = arg2 + 1;// id是从0开始的，所以需要+1
108 if (index == 1) {
109
110 Intent intent = new Intent();
111 intent.setClass(StudentMainActivity.this,
112 StudentNextMainActivity.class);
113 startActivity(intent);
114 }
115 if (index == 2) {
116 Intent intent = new Intent();
117 intent.setClass(StudentMainActivity.this,
118 StudentNextMainActivity.class);
119 startActivity(intent);
120
121 }
122
123 }
124 });
125
126
127
128
129
130 }
131 }
1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:layout_width="match_parent" 3 android:layout_height="wrap_content" 4 android:orientation="vertical" > 5 6 <RelativeLayout 7 android:id="@+id/rl_username" 8 android:layout_width="match_parent" 9 android:layout_height="wrap_content" 10 android:background="#000000"> 11 <TextView 12 android:id="@+id/tv_name" 13 android:layout_width="match_parent" 14 android:layout_height="wrap_content" 15 android:layout_centerVertical="true" 16 android:layout_margin="35dp" 17 android:textSize="20sp" 18 android:textColor="#FFFFFF" 19 android:text="欢迎登录软件学院管理系统"/> 20 </RelativeLayout> 21 22 <LinearLayout 23 android:layout_width="match_parent" 24 android:layout_height="wrap_content" 25 android:orientation="vertical" > 26 <GridView 27 android:id="@+id/gridView1" 28 android:layout_width="match_parent" 29 android:layout_height="wrap_content" 30 android:numColumns="3" > 31 </GridView> 32 </LinearLayout> 33 </LinearLayout>
1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:layout_width="fill_parent" 3 android:layout_height="wrap_content" > 4 5 <ImageView 6 android:id="@+id/ItemImage" 7 android:layout_width="50dp" 8 android:layout_height="50dp" 9 android:layout_centerHorizontal="true"/> 10 11 <TextView 12 android:id="@+id/ItemText" 13 android:layout_width="wrap_content" 14 android:layout_height="wrap_content" 15 android:layout_centerHorizontal="true" 16 android:layout_below="@+id/ItemImage" 17 android:layout_marginTop="24dp" 18 android:textColor="#000000" 19 android:textSize="12sp" /> 20 21 </RelativeLayout>
以上是实现这个界面的代码
1 package com.itcast.test03;
2
3 import android.os.Bundle;
4 import android.app.Activity;
5 import android.view.Menu;
6 import java.io.File;
7 import java.io.FileOutputStream;
8 import android.os.Environment;
9 import android.content.Intent;
10 import android.graphics.Bitmap;
11 import android.view.View;
12 import android.widget.AdapterView;
13 import android.widget.ArrayAdapter;
14 import android.widget.Spinner;
15 public class StudentNextMainActivity extends Activity
16 {
17 private Spinner projectsSpinner = null;
18 private Spinner kindsSpinner = null;
19 private Spinner examinesSpinner = null;
20 ArrayAdapter<String> projectsAdapter = null;
21 ArrayAdapter<String> kindsAdapter = null;
22 ArrayAdapter<String> examinesAdapter = null;
23 static int provincePosition = 3;
24 private String[] projects = new String[] {"科研训练","素质拓展","社会实践"};
25 private String[][] kinds = new String[][]
26 {
27 { "项目类", "成果类", "学术活动"},
28 { "专业素质", "综合素质"},
29 { "无"}
30 };
31
32
33 private String[][][] examines = new String[][][]
34 {
35 { //科研训练
36 {"主持或参加科研项目","校大学生创新基金重点项目","校大学生创新基金一般项目"},
37 {"获奖","著作","专利","论文"},
38 {"学术交流","学术讲座","课外读书"}
39 },
40 { //素质拓展
41 {"学科竞赛(含挑战杯)","证书"},
42 {"开放实验","参加文体活动","组织活动"}
43 },
44 { //社会实践
45 {"社会实践活动","社团活动","公益劳动","自主创业"}
46 }
47 };
48
49
50 @Override
51 protected void onCreate(Bundle savedInstanceState)
52 {
53 super.onCreate(savedInstanceState);
54 setContentView(R.layout.activity_student_next_main);
55 setSpinner();
56 }
57 public void pitcure(View view){
58 screenshot();
59 }
60 private void screenshot()
61 {
62 // 获取屏幕
63 View dView = getWindow().getDecorView();
64 dView.setDrawingCacheEnabled(true);
65 dView.buildDrawingCache();
66 Bitmap bmp = dView.getDrawingCache();
67 if (bmp != null)
68 {
69 try {
70 // 获取内置SD卡路径
71 String sdCardPath = Environment.getExternalStorageDirectory().getPath();
72 // 图片文件路径
73 String filePath = sdCardPath + File.separator + "screenshot.png";
74
75 File file = new File(filePath);
76 FileOutputStream os = new FileOutputStream(file);
77 bmp.compress(Bitmap.CompressFormat.PNG, 100, os);
78 os.flush();
79 os.close();
80 } catch (Exception e) {
81 }
82 }
83 }
84 public void next(View view){
85 Intent intent = new Intent(this,WriteMainActivity.class);
86 startActivity(intent);
87 }
88
89 /*
90 * 设置下拉框
91 */
92 private void setSpinner()
93 {
94 projectsSpinner = (Spinner)findViewById(R.id.spin_projects);
95 kindsSpinner = (Spinner)findViewById(R.id.spin_kinds);
96 examinesSpinner = (Spinner)findViewById(R.id.spin_examines);
97
98 //绑定适配器和值
99 projectsAdapter = new ArrayAdapter<String>(StudentNextMainActivity.this,
100 android.R.layout.simple_spinner_item, projects);
101 projectsSpinner.setAdapter( projectsAdapter);
102 projectsSpinner.setSelection(2,true); //设置默认选中项，此处为默认选中第3个值
103
104 kindsAdapter = new ArrayAdapter<String>(StudentNextMainActivity.this,
105 android.R.layout.simple_spinner_item, kinds[2]);
106 kindsSpinner.setAdapter(kindsAdapter);
107 kindsSpinner.setSelection(0,true); //默认选中第0个
108 examinesAdapter = new ArrayAdapter<String>(StudentNextMainActivity.this,
109 android.R.layout.simple_spinner_item, examines[2][0]);
110 examinesSpinner.setAdapter(examinesAdapter);
111 examinesSpinner.setSelection(0, true);
112 projectsSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
113 {
114 // 表示选项被改变的时候触发此方法，主要实现办法：动态改变地级适配器的绑定值
115 @Override
116 public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long arg3)
117 {
118
119 kindsAdapter = new ArrayAdapter<String>(
120 StudentNextMainActivity.this, android.R.layout.simple_spinner_item,kinds[position]);
121 kindsSpinner.setAdapter(kindsAdapter);
122 provincePosition = position; //记录当前省级序号，留给下面修改县级适配器时用
123 }
124 @Override
125 public void onNothingSelected(AdapterView<?> arg0)
126 {
127
128 }
129
130 });
131
132
133 //种类下拉监听
134 kindsSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
135 {
136 @Override
137 public void onItemSelected(AdapterView<?> arg0, View arg1,
138 int position, long arg3)
139 {
140 examinesAdapter = new ArrayAdapter<String>(StudentNextMainActivity.this,
141 android.R.layout.simple_spinner_item, examines[provincePosition][position]);
142 examinesSpinner.setAdapter(examinesAdapter);
143 }
144 @Override
145 public void onNothingSelected(AdapterView<?> arg0)
146 {
147
148 }
149 });
150 }
151 }
1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:layout_width="fill_parent" 3 android:layout_height="fill_parent" 4 android:orientation="vertical" > 5 <RelativeLayout 6 android:layout_width="fill_parent" 7 android:layout_height="50dp" 8 android:background="#000000"> 9 <TextView 10 android:layout_width="match_parent" 11 android:layout_height="wrap_content" 12 android:textSize="24sp" 13 android:layout_centerInParent="true" 14 android:layout_centerHorizontal="true" 15 android:layout_centerVertical="true" 16 android:textColor="#FFFFFF" 17 android:text="学生综合实践模块积分申请表"/> 18 </RelativeLayout> 19 <View 20 android:layout_width="match_parent" 21 android:layout_height="8dp"/> 22 <LinearLayout 23 android:layout_width="match_parent" 24 android:layout_height="wrap_content" 25 android:padding="8dp" 26 android:orientation="vertical"> 27 <Spinner 28 android:id="@+id/spin_projects" 29 android:layout_width="150dp" 30 android:layout_height="wrap_content" /> 31 <Spinner 32 android:id="@+id/spin_kinds" 33 android:layout_width="200dp" 34 android:layout_height="wrap_content" /> 35 <Spinner 36 android:id="@+id/spin_examines" 37 android:layout_width="300dp" 38 android:layout_height="wrap_content" /> 39 </LinearLayout> 40 <RelativeLayout 41 android:layout_width="match_parent" 42 android:layout_height="wrap_content" > 43 44 <Button 45 android:layout_width="wrap_content" 46 android:layout_height="wrap_content" 47 android:layout_alignParentRight="true" 48 android:layout_alignParentTop="true" 49 android:onClick="pitcure" 50 android:background="#FFFFFF" 51 android:textColor="#000000" 52 android:text="截图" /> 53 <Button 54 android:layout_width="wrap_content" 55 android:layout_height="wrap_content" 56 android:onClick="next" 57 android:background="#FFFFFF" 58 android:textColor="#000000" 59 android:text="下一步" /> 60 61 </RelativeLayout> 62 63 </LinearLayout>
以上代码是实现这个界面的
1 package com.itcast.test03;
2 import android.os.Bundle;
3 import android.app.Activity;
4 import android.view.Menu;
5
6 public class WriteMainActivity extends Activity {
7
8 @Override
9 protected void onCreate(Bundle savedInstanceState) {
10 super.onCreate(savedInstanceState);
11 setContentView(R.layout.activity_write_main);
12 }
13
14 @Override
15 public boolean onCreateOptionsMenu(Menu menu) {
16 // Inflate the menu; this adds items to the action bar if it is present.
17 getMenuInflater().inflate(R.menu.write_main, menu);
18 return true;
19 }
20
21 }
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:orientation="vertical" 6 android:padding="8dp" > 7 <RelativeLayout 8 android:layout_width="match_parent" 9 android:layout_height="50dp" 10 android:background="#000000"> 11 <Button 12 android:id="@+id/upload" 13 android:layout_width="wrap_content" 14 android:layout_height="wrap_content" 15 android:layout_alignParentRight="true" 16 android:layout_centerHorizontal="true" 17 android:layout_centerVertical="true" 18 android:textColor="#FFFFFF" 19 android:background="#000000" 20 android:textSize="18sp" 21 android:text="发送" /> 22 </RelativeLayout> 23 24 <LinearLayout 25 android:layout_width="match_parent" 26 android:layout_height="match_parent" 27 android:background="#ffffff" 28 android:orientation="vertical" > 29 <EditText 30 android:layout_width="fill_parent" 31 android:layout_height="100dp" 32 android:layout_margin="8dp" 33 android:gravity="left|top" 34 android:hint="填写你要申请的分数及其他信息......" 35 android:background="@null" > 36 </EditText> 37 <ImageView 38 android:layout_width="100dp" 39 android:layout_height="100dp" 40 android:src="@drawable/icon_addpic_unfocused" /> 41 42 <GridView 43 android:id="@+id/noScrollgridview" 44 android:layout_width="290dp" 45 android:layout_height="350dp" 46 android:layout_marginLeft="5dp" 47 android:horizontalSpacing="3dp" 48 android:numColumns="4" 49 android:scrollbars="none" 50 android:verticalSpacing="5dp" > 51 </GridView> 52 53 </LinearLayout> 54 </LinearLayout>
以上代码是实现这个界面的
时间： 2024-10-10 10:44:00