如何制作不规则形状的uiview并将uiimageview放入instacollage iphone app之类的形状中

Question

I am working on a photo collage iphone app and i have to make irregular shape photo frames inside each shape there will be a uiimageview with gestures, on tapping the shape i need to pick a photo for that shape, these frames are very similar to frames of instacollage iphone app. link : https://itunes.apple.com/in/app/instacollage-pro-pic-frame/id530957474?mt=8

provide me some kind of direction how to do this task.

Thanks

Answer 1

You can use Mask property of the layer to achieve this.

CAShapeLayer *maskLayer = [CAShapeLayer layer];
maskLayer.frame = self.imageView.bounds ;
UIBezierPath *roundedPath = [UIBezierPath bezierPathWithOvalInRect:maskLayer.frame];
maskLayer.fillColor = [[UIColor whiteColor] CGColor];
maskLayer.backgroundColor = [[UIColor clearColor] CGColor];
maskLayer.path = [roundedPath CGPath];

// Add mask
self.imageView.layer.mask = maskLayer;

Answer 2

Thanks Sahana. The equivalent code in Swift is:

let maskLayer = CAShapeLayer()
maskLayer.frame = self.imageView.bounds
let roundedPath = UIBezierPath(ovalInRect: maskLayer.frame)
maskLayer.fillColor = UIColor.whiteColor().CGColor
maskLayer.backgroundColor = UIColor.clearColor().CGColor
maskLayer.path = roundedPath.CGPath
self.imageView.layer.mask = maskLayer