android控件学习——GridView学习

GridView最常用的就是用来显示九宫格这类似的。比如下面这个图：

像这种，上面一个图片，下面一段文字，这些是非常常见的。实现方法如下：

首先是GridView的一个Item的xml格式文件：

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout android:id="@+id/widget33" android:layout_width="fill_parent" android:layout_height="wrap_content" xmlns:android="http://schemas.android.com/apk/res/android" android:paddingBottom="5dip"> <ImageView android:id="@+id/item_image" android:layout_centerHorizontal="true" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <TextView android:id="@+id/item_text" android:layout_below="@id/item_image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true"/> </RelativeLayout>

然后在需要的地方写一个GridView

<GridView android:id="@+id/gv_buttom_menu" android:layout_width="fill_parent" android:layout_height="65sp" android:layout_alignParentBottom="true"> </GridView>

下面是实现方法：

private void loadGridView() { gv_buttom_menu = (GridView) findViewById(R.id.gv_buttom_menu); gv_buttom_menu.setBackgroundResource(R.drawable.channelgallery_bg); gv_buttom_menu.setNumColumns(5); gv_buttom_menu.setGravity(Gravity.CENTER); gv_buttom_menu.setHorizontalSpacing(10); gv_buttom_menu.setVerticalSpacing(10); ArrayList<HashMap<String, Object>> data = new ArrayList<HashMap<String, Object>>(); HashMap<String, Object> map = new HashMap<String, Object>(); map.put("itemImage", R.drawable.menu_new_user); map.put("itemText", "增加"); data.add(map); map = new HashMap<String, Object>(); map.put("itemImage", R.drawable.menu_search); map.put("itemText", "查找"); data.add(map); map = new HashMap<String, Object>(); map.put("itemImage", R.drawable.menu_delete); map.put("itemText", "删除"); data.add(map); map = new HashMap<String, Object>(); map.put("itemImage", R.drawable.controlbar_showtype_list); map.put("itemText", "菜单"); data.add(map); map = new HashMap<String, Object>(); map.put("itemImage", R.drawable.menu_exit); map.put("itemText", "退出"); data.add(map); SimpleAdapter adapter = new SimpleAdapter(this, data, R.layout.itemmenu, new String[] { "itemImage", "itemText" }, new int[] { R.id.item_image, R.id.item_text }); gv_buttom_menu.setAdapter(adapter);

//GridView上的item监听

gv_buttom_menu.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { switch (position) { case 0: { startActivity(new Intent(StudentManagerActivity.this, AddStudentActivity.class)); break; } case 1: { break; } case 2: { break; } case 3: { break; } case 4: { finish(); break; } default: break; } } }); }