Every Cocoa Touch (and Cocoa) class has a designated initializer; for UIView, as stated in this documentation, that method is initWithFrame:. In this particular case, you’ll only need to override initWithFrame; all other calls will cascade down and hit this method, eventually. This goes beyond the scope of the question, but if you do end … Read more
According to the Apple specification: It is composited above the receiver’s contents and sublayers. So, the border will always be above of all your subviews, even if you bring your subview to the front and so on. So I make a background view to fake the border. E.g.: UIView *backgroundView = [[UIView alloc] initWithFrame:CGRectMake(100, 100, … Read more
Joe’s answer above does exactly as his GIF describes but it doesn’t really answer your question since it translates then scales the view (as opposed to both translating and scaling at the same time). Your issue is that you’re setting the view’s transform in your animation block then immediately overwritting that value with another transform. … Read more
viewDidLoad is called when the class is loaded however no ui elements have been initialised and therefore any attempt to reference them will be overwritten or unavaliable during the initialisation process which happens between the viewDidLoad and viewDidAppear calls. Once all ui element have been initalised and drawn viewDidAppear is called. viewDidLoad – Called after … Read more
You could also add the following code to calculate subviews position. [myView resizeToFitSubviews] UIViewUtils.h #import <UIKit/UIKit.h> @interface UIView (UIView_Expanded) -(void)resizeToFitSubviews; @end UIViewUtils.m #import “UIViewUtils.h” @implementation UIView (UIView_Expanded) -(void)resizeToFitSubviews { float w = 0; float h = 0; for (UIView *v in [self subviews]) { float fw = v.frame.origin.x + v.frame.size.width; float fh = v.frame.origin.y + … Read more
You could “fitler” for the top notch, something like: var hasTopNotch: Bool { if #available(iOS 11.0, tvOS 11.0, *) { return UIApplication.shared.delegate?.window??.safeAreaInsets.top ?? 0 > 20 } return false }
Updated for Swift 3: class TriangleView : UIView { override init(frame: CGRect) { super.init(frame: frame) } required init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) } override func draw(_ rect: CGRect) { guard let context = UIGraphicsGetCurrentContext() else { return } context.beginPath() context.move(to: CGPoint(x: rect.minX, y: rect.maxY)) context.addLine(to: CGPoint(x: rect.maxX, y: rect.maxY)) context.addLine(to: CGPoint(x: (rect.maxX / 2.0), … Read more
Nevermind, I just did: searchBar.layer.borderWidth = 1; searchBar.layer.borderColor = [[UIColor whiteColor] CGColor]; and it works!
How about: [self.label setCenter:view.center];
This should work. I commented in the code to help you understand what’s going on: //To take advantage of CIFilters, you have to import the Core Image framework #import <CoreImage/CoreImage.h> //Get a UIImage from the UIView UIGraphicsBeginImageContext(myView.bounds.size); [myView.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); //Blur the UIImage with a CIFilter CIImage *imageToBlur = [CIImage imageWithCGImage:viewImage.CGImage]; … Read more