Borders and shadows, how to implement card style for a UIView in iOS?

Borders and shadows, how to implement card style for a UIView in iOS?

I have a collection view, it does its job but it's ugly... what I have now
is:

I want to decorate the cell like this:

What's the best way? Draw a custom layer or use resizable png assets? What
are the exact steps for reproduce the borders and shadows as the 2nd
image? Thanks