android gridview按钮边框和定制点击颜色

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

<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="2"

          android:verticalSpacing="2dp"

          android:horizontalSpacing="2dp"

          android:stretchMode="columnWidth"

          android:gravity="center"

          android:background="#11000000"

          android:listSelector="@drawable/grid_view_item_selector_xml"

        />

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

<RelativeLayout

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

        android:layout_height="wrap_content"

        android:paddingBottom="2dip"

        android:layout_width="fill_parent"

        android:background="@drawable/grid_view_item_selector_xml"

        >

    <ImageView

            android:layout_height="wrap_content"

            android:id="@+id/ItemImage"

            android:layout_width="wrap_content"

            android:layout_centerHorizontal="true">

    </ImageView>

    <TextView

            android:layout_width="wrap_content"

            android:layout_below="@id/ItemImage"

            android:layout_height="wrap_content"

            android:text="TextView01"

            android:layout_centerHorizontal="true"

            android:id="@+id/ItemText">

    </TextView>

</RelativeLayout>  

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

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

    <item android:state_pressed="true" android:drawable="@drawable/grid_view_item_press_shape"/>

    <item android:drawable="@drawable/grid_view_item_shape"/>

</selector>

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

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

    <solid android:color="#5500ffff"/>

</shape>

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

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

    <solid android:color="#fff"/>

</shape>