A by far easier approach is to set some layer attributes of the view on initialization: self.layer.masksToBounds = NO; self.layer.shadowOffset = CGSizeMake(-15, 20); self.layer.shadowRadius = 5; self.layer.shadowOpacity = 0.5; You need to import QuartzCore. #import <QuartzCore/QuartzCore.h>
Swift 5.0 : var dayComponent = DateComponents() dayComponent.day = 1 // For removing one day (yesterday): -1 let theCalendar = Calendar.current let nextDate = theCalendar.date(byAdding: dayComponent, to: Date()) print(“nextDate : \(nextDate)”) Objective C : NSDateComponents *dayComponent = [[NSDateComponents alloc] init]; dayComponent.day = 1; NSCalendar *theCalendar = [NSCalendar currentCalendar]; NSDate *nextDate = [theCalendar dateByAddingComponents:dayComponent toDate:[NSDate date] … Read more
If your ultimate aim is just to resign the first responder, this should work: [self.view endEditing:YES]
It is possible, but you’ll have to do a little extra work. There are a couple conceptual things to get out of the way first: Hidden views, even though they don’t draw, still participate in Auto Layout and usually retain their frames, leaving other related views in their places. When removing a view from its … Read more
Damn, it took me a while but I got it: main.c: #include <CoreFoundation/CoreFoundation.h> #include <objc/runtime.h> #include <objc/message.h> // This is a hack. Because we are writing in C, we cannot out and include // <UIKit/UIKit.h>, as that uses Objective-C constructs. // however, neither can we give the full function declaration, like this: // int UIApplicationMain … Read more
UILongPressGestureRecognizer is a continuous event recognizer. You have to look at the state to see if this is the start, middle or end of the event and act accordingly. i.e. you can throw away all events after the start, or only look at movement as you need. From the Class Reference: Long-press gestures are continuous. … Read more
Try: [self.view endEditing:YES];
Updated answer for Swift 2.0+: toInt() method gives an error, as it was removed from String in Swift 2.x. Instead, the Int type now has an initializer that accepts a String: let a: Int? = Int(firstTextField.text) let b: Int? = Int(secondTextField.text)
For iOS 6 and above, use the following to allow multiple lines: button.titleLabel.lineBreakMode = NSLineBreakByWordWrapping; // you probably want to center it button.titleLabel.textAlignment = NSTextAlignmentCenter; // if you want to [button setTitle: @”Line1\nLine2″ forState: UIControlStateNormal]; For iOS 5 and below use the following to allow multiple lines: button.titleLabel.lineBreakMode = UILineBreakModeWordWrap; // you probably want to … Read more
NSArray *array = [mutableArray copy]; Copy makes immutable copies. This is quite useful because Apple can make various optimizations. For example sending copy to a immutable array only retains the object and returns self. If you don’t use garbage collection or ARC remember that -copy retains the object.