How do draw a rounded rectangular border around views?

[Inman]

I have a panel in white color, around which I want to draw a gray rectangular border (with rounded corners). How can I do this?

I tried to do it with 9 patch PNG but unfortunately I have always been pretty bad with image manipulation and so the output was messed up.

 

[Erel]

You can create a ColorDrawable object and set its corner radius. You should then set it as the panel's background. Note that it can also be done with the designer.

 

[Inman]

When I set it as Panel's background, won't it fill the whole Panel background with that color, instead of the border alone?

 

[thedesolatesoul]

I just knocked this up quickly, see if it works for you.

 

[Inman]

Thank you so much for this. This is exactly what I wanted. Looks much much better than what I managed to do myself.

 

[francoisg]

Try this (won't work for rounded corners though)

Public Sub DrawBorder(Target As View, aColor As Int, StrokeWidth As Int)
   Dim c As Canvas
   c.Initialize(Target)
   Dim r As Rect : r.Initialize(0, 0, Target.Width - StrokeWidth, Target.Height - StrokeWidth)
   c.DrawRect(r, aColor, False, StrokeWidth)
   Target.Invalidate
End Sub