cyril cyril - 1 year ago 105
Swift Question

Why is 'nil' not compatible with 'UnsafePointer<CGAffineTransform>' in Swift 3?

Trying to create a

as such:

let path = CGMutablePath()
CGPathMoveToPoint(path, nil, 30, 0)

but the compiler keeps on giving me the following error:
'nil' not compatible with expected argument type 'UnsafePointer<CGAffineTransform>'
. What am I doing wrong? I can't seem to find anything else online.
(Yes I've tried converting the Ints to CGFloats but it doesn't seem to make a difference.)

Answer Source

Try this:

let path = CGMutablePath()
path.move(to: CGPoint(x: 30, y: 0))

CGPath APIs are now imported as instance methods in Swift 3. You can check them with Command-clicking on CGMutablePath. Or see the latest reference of CGMutablePath.

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