PullToRefreshGridView中xml的配置

    <com.handmark.pulltorefresh.library.PullToRefreshGridView
        xmlns:ptr="http://schemas.android.com/apk/res-auto"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:numColumns="2"
        android:id="@+id/refresh_grid_view"
        ptr:ptrDrawable="@drawable/default_ptr_flip"
        ptr:ptrAnimationStyle="flip"
        ptr:ptrHeaderBackground="#383838"
        ptr:ptrHeaderTextColor="#FFFFFF"  >

    </com.handmark.pulltorefresh.library.PullToRefreshGridView>