sanllier

@objc func _needsDoubleUpdateConstraintsPass() -> Bool {
    return true
} 
 
override var intrinsicContentSize: CGSize {
    return attributedText?.size(forWidth: (engineBounds ?? bounds).width) ?? .zero
}

var engineBounds: CGRect? {
    let objcSelector = "_nsis_compatibleBoundsInEngine:")

ian-mcdowell

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>CFBundleName</key>
  <string>KeynoteDAVFP</string>
  <key>CFBundleIdentifier</key>
  <string>com.apple.Keynote.KeynoteDAVFP</string>
  <key>CFBundleDisplayName</key>
  <string>WebDAV</string>

efremidze

import UIKit

let keyPath = "continuous" + "Corners"

extension CALayer {
    var infiniteCorners: Bool {
        get { return value(forKeyPath: keyPath) as! Bool }
        set { setValue(newValue, forKeyPath: keyPath) }
    }
}

paul1893

func dragInteraction(_ interaction: UIDragInteraction, itemsForBeginning session: UIDragSession)
  let itemProvider = NSItemProvider()
  
  itemProvider.registerFileRepresentation(forTypeIdentifier: kUTTypeJPEG as String, fileOptions: [.openInPlace], visibility: .all){ completionHandler in
    //Get Url
    let url = Attachement.url(forName: self.contactCard.name)
    completionHandler(url, true, nil)
    return nil
  }
  

smileyborg

// UICollectionView Objective-C example

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
        
    NSIndexPath *selectedIndexPath = [[self.collectionView indexPathsForSelectedItems] firstObject];
    if (selectedIndexPath != nil) {
        id<UIViewControllerTransitionCoordinator> coordinator = self.transitionCoordinator;
        if (coordinator != nil) {
            [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {

ian-mcdowell

#import <objc/runtime.h>

@interface DebuggingOverlay: NSObject

@end

@implementation DebuggingOverlay

+ (void)toggleOverlay {
    id debugInfoClass = NSClassFromString(@"UIDebuggingInformationOverlay");

KyNorthstar

//
//  NSWindow+Fade.swift
//  BH Bezel Notification
//
//  Created by Ben Leggiero on 2017-11-09.
//  Translated to Swift 4 from the original (ObjC): https://gist.github.com/indragiek/1397050
//  Copyright © 2017 Ben Leggiero. All rights reserved.
//

import Foundation

hborders

#import "MyNonClusteredClass.h"

@interface GenericIsKindOfClass<ObjectType : MyNonClusteredClass *> : NSObject

+ (instancetype _Nonnull)new NS_UNAVAILABLE;
- (instancetype _Nonnull)init NS_UNAVAILABLE;
- (instancetype _Nonnull)initWithInstanceOfObjectType:(ObjectType _Nonnull)instanceOfObjectType NS_DESIGNATED_INITIALIZER;

- (ObjectType _Nullable)typeSafeDowncastOrNil:(NSObject * _Nonnull)object;

Catfish-Man

As of iOS 11/macOS High Sierra, and only including ones in Foundation and CoreFoundation

Strings:

_NSCFString - a CFStringRef or CFMutableStringRef. This is the most common type of string object currently.
    - May have 8 bit (ASCII) or 16 bit (UTF-16) backing store
_NSCFConstantString - a compile time constant CFStringRef, like you'd get with @"foo"
    - May also be generated by dynamic string creation if matches a string in a pre-baked table of common strings called the StringROM
NSBigMutableString - an NSString backed by a CFStorage (https://github.com/opensource-apple/CF/blob/master/CFStorage.h) for faster handling of very large strings
NSCheapMutableString - a very limited NSMutableString that allows for zero-copy initialization. Used in NSFileManager for temporarily wrapping stack buffers.

Catfish-Man

#import <Foundation/Foundation.h>
#import <time.h>
#import <os/lock.h>

#define ITERS 2000
#define NSEC_PER_ITER(time) (((double)time * (double)NSEC_PER_SEC) / (double)ITERS)

#define TEST(body, name) do {\
    start = [NSDate date];\
    for (int i = 0; i < ITERS; i++) {\