How to change card_view:cardCornerRadius programmatically

Question

In my project, I am using RecyclerView in my listing using CardView. In my listing I have to set the corner radius of CardView dynamically based on device.

Is there any way to set cardview corner radius value dynamically?

Thanks.

Deliquesce

Are you got any solution ? – Kruller

Answer 1

Use CardView.setRadius(float), see androidx.cardview.

(It is worth noting that this will have no effect if you also invoke setBackgroundColor, make sure to use setCardBackgroundColor instead).

You must specify a pixel size, rather than dp value, e.g. for corner radius of 4dp you can invoke, in Kotlin:

radius = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4f, context.resources.displayMetrics) 

Badge

Unfortunately not working, get backs to default atrubites – Humiliate

@Sam You need to use a dp to px conversion – Bandeen

It results in white background around the corners. – Rank

I have programmatically generated CardViews and tried adding them in a LinearLayout inside Horizontal ScrollView. but this code doesnot work even when documentation says it should. I know it's been marked correct, but is there anything that I need to look for ? – Fatherless

Yes same issue as @SoumyadeepGhosh this is not useful for me. Any other solution ? – Kruller

@BhavenShah Have you applied any "background color" to the CardView, rather than "Card Background Colour" ? – Fatherless

yes, I applied both the same color. My issue solved by removing background color. Thanks. – Kruller

Wondering why setBackgroundColor makes the radius redundant. Would have taken me forever to fix it had I not read the note that you mentioned. Thanks – Adenoma

Your clarification with setCardBackgroundColor saves lives – Unexpressed