Tricertops

- (NSMutableData *)mutableRGBAData {
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    
    CGSize scaledSize = (CGSize){
        .width = self.size.width * self.scale,
        .height = self.size.height * self.scale,
    };

    NSUInteger const bytesPerPixel = 4;
    NSUInteger const bitsPerComponent = 8;

Tricertops

- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {
    
    NSUInteger section = ...
    CGRect rect = [self.tableView rectForSection:section];
    
    // Include content inset
    rect.origin.y -= self.tableView.contentInset.top;
    
    // Restore previous offset and animate to destination
    CGPoint offset = self.tableView.contentOffset;

Tricertops

#import <Foundation/Foundation.h>

typedef void(^KVObservingBlock)(id value, NSDictionary *change);

@interface KVObserver : NSObject

- (instancetype)initWithBlock:(KVObservingBlock)block;

@end

Tricertops

+ (void)enumerateAdoptedProtocolsOfProtocol:(Protocol *)protocol usingBlock:(void(^)(Protocol *adoptedProtocol))block {
    unsigned int adoptedCount = 0;
    Protocol * __unsafe_unretained *adoptedProtocolList = protocol_copyProtocolList(protocol, &adoptedCount);
    if (adoptedProtocolList) {
        for (NSUInteger index = 0; index < adoptedCount; index++) {
            Protocol *adoptedProtocol = adoptedProtocolList[index];
            
            block(adoptedProtocol);
        }
        free(adoptedProtocolList);

Tricertops

<?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>DVTConsoleDebuggerInputTextColor</key>
	<string>0.715709 0.129913 0.185409 1</string>
	<key>DVTConsoleDebuggerInputTextFont</key>
	<string>Menlo-Regular - 13.0</string>
	<key>DVTConsoleDebuggerOutputTextColor</key>
	<string>1 1 1 1</string>

Tricertops

// Network request failed, due to lost internet conenction...

OCAErrorRecoveryAttempter *recoveryAttempter = [[OCAErrorRecoveryAttempter alloc] init];

// Recovery suggestion will be be presented together with error message.
recoveryAttempter.recoverySuggestion = @"Make sure you are connected to the Internet and try again.";

// Creates reactive recovery option and chains an invocation to [self start].
[[recoveryAttempter addRecoveryOptionWithTitle:@"Retry"] invoke:OCAInvocation(self, start)];

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// This triggers correct KVO insertion notification:
[parent.mutableChildren addObject:@"Child"];

Tricertops

- (NSString *)clockForHour:(NSUInteger)hour {
    NSArray *clocks = @[ @"🕛", @"🕐", @"🕑", @"🕒", @"🕓", @"🕔",
                         @"🕕", @"🕖", @"🕗", @"🕘", @"🕙", @"🕚" ];
    NSUInteger index = hour % clocks.count;
    return [clocks objectAtIndex:index];
}

Tricertops

@import Foundation;


@interface NSObject (ThreadSafeProxy)

- (instancetype)threadSafe;

@end

Tricertops

import UIKit
import CoreText

extension UIFont {
    
    typealias Feature = (type: Int, selector: Int)
    struct Features {
        static var ProportionalNumbers: Feature = (kNumberSpacingType, kProportionalNumbersSelector)
        static var AlternatePunctuation: Feature = (kCharacterAlternativesType, 1) // Magic!
    }