Custom Drawable not generating round corners for CardView's image - android-layout

Question

I created a list of Cards with the new CardView and RecyclerView that look this way:
I've tried to modify the card with round corners as explained by Mariotti in this post.
PROBLEM: The problem is that, as you can see from the screenshot I am only able to set the card's corner while the image remains squared.
In the example a custom Drawable class extending Drawable draws a rounded rectangle using Canvas.drawRoundRect(), and use a Paint with a BitmapShader to fill the rounded rectangle with a texture instead of a simple color, as also explained here.
In my Adapter I have:
#Override
public ContactViewHolder onCreateViewHolder(final ViewGroup viewGroup, int i) {
final View itemView = LayoutInflater
.from(viewGroup.getContext())
.inflate(R.layout.item_card_view, viewGroup, false);
CardView cardView = (CardView) itemView.findViewById(R.id.card_view);
ImageView imageView = (ImageView) itemView.findViewById(R.id.hImage);
Bitmap mBitmap = BitmapFactory.decodeResource(itemView.getResources(), R.drawable.background);
//Default
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
//Default
imageView.setBackgroundResource(R.drawable.background);
} else {
//RoundCorners
madapps.hellogridview.RoundCornersDrawable round = new madapps.hellogridview.RoundCornersDrawable(
mBitmap,
itemView.getResources().getDimension(R.dimen.cardview_default_radius)
, 5); //or your custom radius
cardView.setPreventCornerOverlap(false); //it is very important
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
imageView.setBackground(round);
else
imageView.setBackgroundDrawable(round);
}
//Set onClick listener
cardView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int tag = (Integer) v.findViewById(R.id.hTitle).getTag();
Toast.makeText(viewGroup.getContext(), "Clickable card no: "+tag, Toast.LENGTH_LONG).show();
}
});
return new ContactViewHolder(itemView);
}
and I've overridden the value of R.dimen.cardview_default_radiusto 8dp, with no result! Any ideas?

Answer 1

I've solved it using this:
https://github.com/pungrue26/SelectableRoundedImageView
and applying a radius of 10dp (same as the card) to the top corners of the image:
<com.joooonho.SelectableRoundedImageView android:id="#+id/headerImage"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="#drawable/cardbackground3"
android:scaleType="centerCrop"
android:adjustViewBounds="true"
app:sriv_left_top_corner_radius="10dip"
app:sriv_right_top_corner_radius="10dip"
app:sriv_left_bottom_corner_radius="0dip"
app:sriv_right_bottom_corner_radius="0dip"
app:sriv_border_color="#333333"/>

Answer 2

Thanks thats exatly what I need. But you know there is one problem know. There is little space like padding between borders of CardView and Image. But there was no paddings in my case. It seems to mе that this library rounded corners but dont change position of image. Do you have the same think? By the way my layout the same as yours. Do you have any ideas about that?