GridView完美的例子

1.主界面布局代码：activity_main.xml

a.包裹HorizontalScrollView控件是GirdView横向滚动的基本条件
b.GirdView外包裹LinearLayout是java代码中参数设置的必要条件

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<HorizontalScrollView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5dp" >

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="fill_parent"

android:layout_margin="10dp" >

<GridView

android:id="@+id/grid"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:gravity="center"

android:numColumns="auto_fit"

android:stretchMode="spacingWidthUniform" >

</GridView>

</LinearLayout>

</HorizontalScrollView>

</LinearLayout>

2.主界面GridView列表子项布局文件：list_item.xml