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.

Are you got any solution ? – Bhaven Shah Aug 09 '20 at 04:54 — Bhaven Shah, Aug 09 '20 at 04:54

score 92 · Accepted Answer · edited Aug 12 '20 at 11:10

92

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)

edited Aug 12 '20 at 11:10

Flavius

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answered Jul 04 '16 at 10:47

natario

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Unfortunately not working, get backs to default atrubites – Samir Oct 14 '18 at 19:12
@Sam You need to use a dp to px conversion – Oren Apr 21 '19 at 09:38
It results in white background around the corners. – sak Nov 28 '19 at 17:23
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 ? – Soumyadeep Ghosh Feb 11 '20 at 15:47
Yes same issue as @SoumyadeepGhosh this is not useful for me. Any other solution ? – Bhaven Shah Aug 10 '20 at 05:15
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@BhavenShah Have you applied any "background color" to the CardView, rather than "Card Background Colour" ? – Soumyadeep Ghosh Aug 10 '20 at 18:05
yes, I applied both the same color. My issue solved by removing background color. Thanks. – Bhaven Shah Aug 11 '20 at 04:19
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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 – Tushar Kathuria Mar 03 '22 at 07:17

How to change card_view:cardCornerRadius programmatically

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