A concise yet versatile CAGradientLayer-based view that you can configure directly within a storyboard.
This project is part of my Creating an @IBDesignable Gradient View in Swift tutorial. Please visit the site for a complete description.
The class LDGradientView is the important file here: it contains all the gradient functionality and is
@IBDesignable so it can be dropped into an Xcode storyboard and previewed right there in Interface Builder.
The brief I kept in mind when creating this gradient view was that I very often have to put gradients
into iOS UIs and more often than not the designers want to tweak them after they're implemented.
Making it @IBDesignable is a no-brainer, but most people who do this end up with lists of @IBInspectable
pararmeters for start point, end point, etc. I wanted to make the simplest possible interface to create a
versatile gradient.
So the parameters are very straightforward:-
// the gradient start colour
@IBInspectable var startColor: UIColor?
// the gradient end colour
@IBInspectable var endColor: UIColor?
// the gradient angle, in degrees anticlockwise from 0 (east/right)
@IBInspectable var angle: CGFloat = 270
startColor and endColor should be self-explanatory: they are standard colour pickers. But angle cuts out
a lot of fuss: by simply specifying the gradient direction as an angle it makes it so much easier to work with.
Admittedly you lose some control, for instance if a gradient vector does not pass through the centre point,
but in my fairly long experience of dealing with designers, 90% of cases will be covered by these controls.
Watch the short video to see how it works in action.
If you find this proejct useful, please remember to like the video or star the repo, thanks :)