I don’t know how exactly the bottom sheet of the new Maps app, responds to user interactions. But you can create a custom view that looks like the one in the screenshots and add it to the main view. I assume you know how to: 1- create view controllers either by storyboards or using xib … Read more
Swift example Updated for Xcode 10 and Swift 4 (and reportedly still works for Xcode 12.4/Swift 5) Here is a basic walk through. I originally learned a lot of this from watching this Youtube video series. Later I updated my answer based on this article. Add custom view files The following two files will form … Read more
Note that the following method creates just a bitmap of the view; it does not create actual typography. (void)createPDFfromUIView:(UIView*)aView saveToDocumentsWithFileName:(NSString*)aFilename { // Creates a mutable data object for updating with binary data, like a byte array NSMutableData *pdfData = [NSMutableData data]; // Points the pdf converter to the mutable data object and to the UIView … Read more
I managed to achieve the above effect, so thought I’d post an answer for the same. If anyone has any suggestions about making this more effective, please feel free to contribute. I’ll be sure to mark your answer as the correct one. 🙂 For doing this, you’ll need to add a “custom attribute” to NSAttributedString. … Read more
Yes, you have cited things correctly. Also, I agree that it feels a bit backwards, so for that reason I appreciate your post. You might like using a preprocessor Macro UIViewAutoresizingFlexibleMargins when making a UIView’s margin flexible in every direction. I put this in the precompiled header file so it gets included everywhere. #define UIViewAutoresizingFlexibleMargins … Read more
An extension on UIView should do the trick. extension UIView { // Using a function since `var image` might conflict with an existing variable // (like on `UIImageView`) func asImage() -> UIImage { let renderer = UIGraphicsImageRenderer(bounds: bounds) return renderer.image { rendererContext in layer.render(in: rendererContext.cgContext) } } } Apple discourages using UIGraphicsBeginImageContext starting iOS 10 … Read more
Found a method (I modified it a bit) that worked perfectly for me: iphone UIImageView rotation #import <QuartzCore/QuartzCore.h> – (void) runSpinAnimationOnView:(UIView*)view duration:(CGFloat)duration rotations:(CGFloat)rotations repeat:(float)repeat { CABasicAnimation* rotationAnimation; rotationAnimation = [CABasicAnimation animationWithKeyPath:@”transform.rotation.z”]; rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 2.0 /* full rotation*/ * rotations * duration ]; rotationAnimation.duration = duration; rotationAnimation.cumulative = YES; rotationAnimation.repeatCount = repeat … Read more
Try this #import <QuartzCore/QuartzCore.h> // not necessary for 10 years now 🙂 … view.layer.cornerRadius = 5; view.layer.masksToBounds = true; Note: If you are trying to apply rounded corners to a UIViewController‘s view, it should not be applied in the view controller’s constructor, but rather in -viewDidLoad, after view is actually instantiated.
The view’s window property is non-nil if a view is currently visible, so check the main view in the view controller: Invoking the view method causes the view to load (if it is not loaded) which is unnecessary and may be undesirable. It would be better to check first to see if it is already … Read more
Using the example posted by Brock, I modified it so that it is a category of UIView instead UIViewController and made it recursive so that any subview can (hopefully) find the parent UIViewController. @interface UIView (FindUIViewController) – (UIViewController *) firstAvailableUIViewController; @end @implementation UIView (FindUIViewController) – (UIViewController *) firstAvailableUIViewController { UIResponder *responder = [self nextResponder]; while … Read more