gridview的布局

<!--
android:numColumns="auto_fit" ，GridView的列数设置为自动
android:columnWidth="90dp"，每列的宽度，也就是Item的宽度
android:stretchMode="columnWidth"，缩放与列宽大小同步
android:verticalSpacing="10dp"，两行之间的边距，如：行一(NO.0~NO.2)与行二(NO.3~NO.5)间距为10dp
android:horizontalSpacing="10dp"，两列之间的边距
-->
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:columnWidth="90dp"
android:stretchMode="columnWidth"
android:gravity="center"
/>

images = new int[] { R.drawable.emoji_4, R.drawable.emoji_4, R.drawable.emoji_4, R.drawable.emoji_4, R.drawable.emoji_4, R.drawable.emoji_4, R.drawable.emoji_4, R.drawable.emoji_4 };
texts = new String[] { "宫式布局1", "宫式布局2", "宫式布局3", "宫式布局4", "宫式布局5", "宫式布局6", "宫式布局7", "宫式布局8" };

GridView gridview = (GridView) findViewById(R.id.gridview);
ArrayList<HashMap<String, Object>> lstImageItem = new ArrayList<HashMap<String, Object>>();
for (int i = 0; i < 8; i++) {
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("itemImage", images[i]);
map.put("itemText", texts[i]);
lstImageItem.add(map);
}

SimpleAdapter saImageItems = new SimpleAdapter(this, lstImageItem,// 数据源
R.layout.night_item,// 显示布局
new String[] { "itemImage", "itemText" },
new int[] { R.id.itemImage, R.id.itemText });
gridview.setAdapter(saImageItems);
gridview.setOnItemClickListener(new ItemClickListener());

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="20dip" >

<ImageView
android:id="@+id/itemImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true" >
</ImageView>

<TextView
android:id="@+id/itemText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/itemImage"
android:layout_centerHorizontal="true"
android:text="TextView01" >
</TextView>

</RelativeLayout>