Android学习笔记之控件GridView

1.xml布局文件

main.xml

 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
 7     <GridView
 8         android:id="@+id/girdView1"
 9         android:numColumns="2"
10         android:verticalSpacing="10dp"
11         android:horizontalSpacing="10dp"
12         android:layout_width="wrap_content"
13         android:layout_height="wrap_content">
14     </GridView>
15
16    <!--
17     android:numColumns    //列数
18     android:verticalSpacing  //两行之间的距离
19     android:horizontalSpacing  //两列之间的距离
20     -->
21
22 </LinearLayout>

item.xml

 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:gravity="center" >
 7
 8     <ImageView
 9         android:id="@+id/imageView1"
10         android:layout_width="60dp"
11         android:layout_height="60dp"
12         android:src="@drawable/a"/>
13
14     <TextView
15         android:id="@+id/textView1"
16         android:layout_marginTop="5dp"
17         android:layout_width="wrap_content"
18         android:layout_height="wrap_content"
19         android:textSize="15sp"
20         android:text="阿森纳"/>
21
22
23 </LinearLayout>

2.java代码

 1 public class MainActivity extends ActionBarActivity implements OnItemClickListener {
 2
 3     private GridView gv1;
 4     private List<Map<String,Object>> dataList;
 5     private int[] pic = {R.drawable.a,R.drawable.l,R.drawable.m,R.drawable.q};
 6     private String[] name = {"阿森纳","利物浦","曼联","切尔西"};
 7     private SimpleAdapter sa;
 8
 9     @Override
10     protected void onCreate(Bundle savedInstanceState) {
11         super.onCreate(savedInstanceState);
12         setContentView(R.layout.main);
13
14         gv1 = (GridView) findViewById(R.id.girdView1);
15         //初始化
16         dataList = new ArrayList<Map<String,Object>>();
17
18         //1.准备数据源
19         //2.新建适配器（SimpleAdapter）
20         //3.GridView加载适配器
21         //4.GridView配置时间监听器（onItemClickListener）
22
23          sa = new SimpleAdapter(this, getData(),R.layout.item ,new String[]{"pic","name"}, new int[]{R.id.imageView1,R.id.textView1});
24         gv1.setAdapter(sa);
25         gv1.setOnItemClickListener(this);
26
27
28
29     }
30         private List<Map<String,Object>> getData() {
31                  for(int i =0;i<pic.length;i++){
32                     Map<String,Object> map = new HashMap<String, Object>();
33                    map.put("pic", pic[i]);
34                    map.put("name", name[i]);
35                    dataList.add(map);
36         }
37                 return dataList;
38         }
39         @Override
40         public void onItemClick(AdapterView<?> parent, View view, int position,
41                 long id) {
42             // TODO Auto-generated method stub
43             Toast.makeText(this, "我是"+name[position], Toast.LENGTH_SHORT).show();
44         }
45 }