gridView保持间距的已知

activity_main.xml

<span style="font-size:18px;"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >

<GridView
android:id="@+id/gv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#253689"
android:numColumns="3"
android:paddingBottom="10dp"
android:paddingLeft="10dp" />

</LinearLayout></span>

gridView_item.xml

<span style="font-size:18px;"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="100dp" >

<TextView
android:id="@+id/tv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:background="#ff00ff" >
</TextView>

</LinearLayout></span>

参考链接 ：http://blog.csdn.net/lqfsharks/article/details/49468113