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iOS Intermediate Swift Extensions and Protocols Protocol Extensions

Jordan Leahy
Jordan Leahy
25,054 Points
Posted by Jordan Leahy
Jordan Leahy
25,054 Points

What are some common uses cases of extensions is a simple app?

What are some common uses cases of extensions is a simple app?

1 Answer

Nathan F.
Nathan F.
30,773 Points
Nathan F.
Nathan F.
30,773 Points

Some use cases of extensions in a simple app would be

  1. Adding functionality or convenience methods to Apple-provided types. For example, adding a method to UIColor that takes a hex value (like #F3DDC5) and generates a color.

  2. To extend a type of your own and make it conform to a protocol or delegate. Yes, you could simply add this protocol conformance to the type's definition, but if your struct or class is large, an extension can improve legibility and code organization.