NSProgrammer

legacy = UIGraphicsBeginImageContextWithOptions + UIGraphicsEndImageContext

modern = UIGraphicsImageRendererFormat + UIGraphicsImageRenderer

Take aways:

• "modern" w/ prefersExtendedRange = NO
  • basically the same perf as "legacy"
  • probably a good idea to adopt since optimizations will likely be in "modern" first
• "modern" w/ prefersExtendedRange = YES

danielctull

extension UICollectionViewFlowLayout {

    typealias DelegateMethod<Key, Value> = ((UICollectionView, UICollectionViewLayout, Key) -> Value)

    private var delegate: UICollectionViewDelegateFlowLayout? {
        return collectionView?.delegate as? UICollectionViewDelegateFlowLayout
    }

    func retrieve<Key, Value>(

pnc

#!/bin/bash

set -e

CONTENTS=$(tesseract -c language_model_penalty_non_dict_word=0.8 --tessdata-dir /usr/local/share/tessdata/ "$1" stdout -l eng | xml esc)

hex=$((cat <<EOF
<?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">

zats

javascript:document.getElementsByTagName('video')%5B0%5D.webkitEnterFullscreen()

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) {

mikeash

#!/bin/bash

# Exit the script immediately on error
set -e

# We'll work in /tmp
cd /tmp

# Clone mach_override unless we already have it
if [ ! -d mach_override ]; then

nicklockwood

// Swift's untyped errors are a goddam PiTA. Here's the pattern I use to try to work around this.
// The goal is basically to try to guarantee that every throwing function in the app throws an
// ApplicationError instead of some unknown error type. We can't actually enforce this statically
// But by following this convention we can simplify error handling

enum ApplicationError: Error, CustomStringConvertible {
    
  // These are application-specific errors that may need special treatment
  case specificError1
  case specificError2(SomeType)

mayoff

@import Foundation;
@import CoreGraphics;

typedef struct __attribute__((objc_boxable)) CGPoint CGPoint;
typedef struct __attribute__((objc_boxable)) CGSize CGSize;
typedef struct __attribute__((objc_boxable)) CGRect CGRect;
typedef struct __attribute__((objc_boxable)) CGVector CGVector;

int main(int argc, const char * argv[]) {
    @autoreleasepool {

Tricertops

// Macros for creating NSArray and NSSet objects as replacement for @[…] literal.

let components = NSArray(street, city, state, country);

// Advantages:
//  1. Type of NSArray is inferred, in this case it’s NSArray<NSString *> *
//  2. List of objects is type-checked, so mixing types like NSArray(@42, @"Hi") will report compilation error.
//  3. Ability to allocate any class, not just NSArray. For example NSSet and NSMutableArray.
//  4. Avoids stupid clang bracket matching bug, if you know what I mean.

steipete

//
//  PSPDFFastEnumeration.h
//  PSPDFFoundation
//
//  PSPDFKit is the leading cross-platform solution for integrating PDFs into your apps: https://pspdfkit.com.
//  Try it today using our free PDF Viewer app: https://pdfviewer.io/
//
//  This file is MIT licensed. 

@protocol PSPDFFastEnumeration <NSFastEnumeration>