Starting in iOS 3.2, you can use the functionality of UIBezierPaths to create an out-of-the-box rounded rect (where only corners you specify are rounded). You can then use this as the path of a CAShapeLayer, and use this as a mask for your view’s layer: // Create the path (with only the top-left corner rounded) … Read more
Since the question I asked has been seen many times I will provide a detailed answer of it. Feel free to modify it if you want to add more correct content. First a recap on the question: frame, bounds and center and theirs relationships. Frame A view’s frame (CGRect) is the position of its rectangle … Read more
Swift // corner radius blueView.layer.cornerRadius = 10 // border blueView.layer.borderWidth = 1.0 blueView.layer.borderColor = UIColor.black.cgColor // shadow blueView.layer.shadowColor = UIColor.black.cgColor blueView.layer.shadowOffset = CGSize(width: 3, height: 3) blueView.layer.shadowOpacity = 0.7 blueView.layer.shadowRadius = 4.0 Exploring the options Problem 1: Shadow gets clipped off What if there are sublayers or subviews (like an image) whose content we want … Read more
iOS 7 has a new method that allows you to draw a view hierarchy into the current graphics context. This can be used to get an UIImage very fast. I implemented a category method on UIView to get the view as an UIImage: – (UIImage *)pb_takeSnapshot { UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, [UIScreen mainScreen].scale); [self drawViewHierarchyInRect:self.bounds afterScreenUpdates:YES]; // … Read more
The bounds of an UIView is the rectangle, expressed as a location (x,y) and size (width,height) relative to its own coordinate system (0,0). The frame of an UIView is the rectangle, expressed as a location (x,y) and size (width,height) relative to the superview it is contained within. So, imagine a view that has a size … Read more
I think you need a combination of the accepted answer and @fishstix’s + (UIViewController*) topMostController { UIViewController *topController = [UIApplication sharedApplication].keyWindow.rootViewController; while (topController.presentedViewController) { topController = topController.presentedViewController; } return topController; } Swift 3.0+ func topMostController() -> UIViewController? { guard let window = UIApplication.shared.keyWindow, let rootViewController = window.rootViewController else { return nil } var topController = … Read more
I am not sure why your solution did not work but the following code is working for me. Create a bezier mask and apply it to your view. In my code below I was rounding the bottom corners of the _backgroundView with a radius of 3 pixels. self is a custom UITableViewCell: UIBezierPath *maskPath = … Read more
As Ben said, you’ll need to work with the UIView’s layer, using a CATransform3D to perform the layer’s rotation. The trick to get perspective working, as described here, is to directly access one of the matrix cells of the CATransform3D (m34). Matrix math has never been my thing, so I can’t explain exactly why this … Read more
Do you plan to have a squared UIView of width: 100 and Height: 100 centered inside the UIView of an UIViewController? If so, you may try one of the 6 following Auto Layout styles (Swift 5 / iOS 12.2): 1. Using NSLayoutConstraint initializer override func viewDidLoad() { let newView = UIView() newView.backgroundColor = UIColor.red view.addSubview(newView) … Read more