I am using a 3x3 GridLayout as shown in the following code:
<GridLayout
android:columnCount="3"
android:rowCount="3"
android:alignmentMode="alignMargins"
android:columnOrderPreserved="true"
android:rowOrderPreserved="true"
android:layout_width="400sp"
android:layout_height="400sp"
android:layout_marginTop="50dp"
android:layout_centerInParent="true"
android:layout_below="@id/glayout">
// I am using here 9 buttons
</GridLayout>
I was wondering if there is any way to set a color for the separator lines between rows and columns.