How to obtain CGPathRef from a view whose mask has been set to that CGPathRef?

Question

I have a view whose mask I had set earlier in some method, now I want to extract the CGPathRef which was the shape of the mask without having nothing at all, just the view with mask. How do I do that?

CAShapeLayer* maskLayer = [CAShapeLayer layer];
                maskLayer = (CAShapeLayer* )myView.layer.mask;
                CGPathRef x = maskLayer.path;

tried this, didn't work.

yeah, that's where the problem is, the mask is applied,"myView.layer.mask;" isn't nil, but the assignment isn't working, maskLayer is empty. — Sudhanshu Monga, Feb 27 '18 at 05:38
BTW.: The initialization of `maskLayer` in the first line is totally needless. — clemens, Feb 27 '18 at 06:38
@SudhanshuMonga that's your issue its seems that myView.layer.mask is not a CAShapeLayer, so you can't get the path from it, i will test in a example your case scenario and check if can be done — Reinier Melian, Feb 27 '18 at 07:06
@ReinierMelian is there a way around to get the path then? I just need the path. — Sudhanshu Monga, Feb 27 '18 at 08:22
are you sure that your layer.mask is a CAShapeLayer? add this line `NSLog(@"%@",NSStringFromClass(myView.layer.mask.class));` this should print `CAShapeLayer` @SudhanshuMonga, let me know — Reinier Melian, Feb 27 '18 at 08:33
actually it is not, it's CALayer, so I guess there is no way to get the mask's path? — Sudhanshu Monga, Feb 27 '18 at 17:48

score 0 · Answer 1 · answered Mar 02 '18 at 10:02

0

You can get the path of a CALayer if its a CAShapeLayer which is a CALayer subclass so if your myView.layer.mask is not CAShapeLayer object you can't get the CGPath you can check if its the right class making a check

NSLog(@"%@",NSStringFromClass(myView.layer.mask.class));

this must print

CAShapeLayer

answered Mar 02 '18 at 10:02

Reinier Melian

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unfortunately it prints CALayer. – Sudhanshu Monga Mar 05 '18 at 05:47

How to obtain CGPathRef from a view whose mask has been set to that CGPathRef?

1 Answers1