dobaduc

extension UIFont {
    var isBold: Bool {
        return (fontDescriptor().symbolicTraits.rawValue & UIFontDescriptorSymbolicTraits.TraitBold.rawValue) > 0
    }
    
    var isItalic: Bool {
        return (fontDescriptor().symbolicTraits.rawValue & UIFontDescriptorSymbolicTraits.TraitItalic.rawValue) > 0
    }
}

nickfrey

@interface UIPreviewForceInteractionProgress : NSObject

- (void)endInteraction:(BOOL)arg1;

@end

@interface UIPreviewInteractionController : NSObject

@property (nonatomic, readonly) UIPreviewForceInteractionProgress *interactionProgressForPresentation;

schickling

extension UIImage {

    func fixedOrientation() -> UIImage {
        
        if imageOrientation == UIImageOrientation.Up {
            return self
        }
        
        var transform: CGAffineTransform = CGAffineTransformIdentity
        

mminer

import Foundation

func format(bytes: Double) -> String {
    guard bytes > 0 else {
        return "0 bytes"
    }

    // Adapted from http://stackoverflow.com/a/18650828
    let suffixes = ["bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"]
    let k: Double = 1000

pejalo

/// If an error occurs while getting the amount of memory used, the first returned value in the tuple will be 0.

func getMemoryUsedAndDeviceTotalInMegabytes() -> (Float, Float) {
        
    // https://stackoverflow.com/questions/5887248/ios-app-maximum-memory-budget/19692719#19692719
    // https://stackoverflow.com/questions/27556807/swift-pointer-problems-with-mach-task-basic-info/27559770#27559770
    
    var used_megabytes: Float = 0
    
    let total_bytes = Float(ProcessInfo.processInfo.physicalMemory)

matux

$ xcrun scntool --verbose
| Current SceneKit version is 4.560000
| Running scntool (compiled on Jul  1 2018 01:01:55)

usage: scntool --convert file --format format [--output file]

000084a8:  7363 7269 7074 696f 6e00 2d2d 7461 7267 6574 2d70 6c61 7466  :scription.--target-platf

dmsl1805

extension String {
  
  func snakeCased() -> String? {
    let pattern = "([a-z0-9])([A-Z])"

    let regex = try? NSRegularExpression(pattern: pattern, options: [])
    let range = NSRange(location: 0, length: count)
    return regex?.stringByReplacingMatches(in: self, options: [], range: range, withTemplate: "$1_$2").lowercased()
  }
}

ahbo

//

import UIKit

#if !os(tvOS)
@available(tvOS, unavailable)
public class KeyboardLayoutConstraint: NSLayoutConstraint {
    
    private var offset : CGFloat = 0
    private var keyboardVisibleHeight : CGFloat = 0

krummler

import Foundation

extension UnicodeScalar {
    /// Note: This method is part of Swift 5, so you can omit this. 
    /// See: https://developer.apple.com/documentation/swift/unicode/scalar
    var isEmoji: Bool {
        switch value {
        case 0x1F600...0x1F64F, // Emoticons
             0x1F300...0x1F5FF, // Misc Symbols and Pictographs
             0x1F680...0x1F6FF, // Transport and Map

tsuzukihashi

import SwiftUI

struct TestPage: View {
    @State private var rect: CGRect = .zero
    @State private var uiImage: UIImage? = nil
    @State private var showShareSheet = false

    var body: some View {
        VStack {
            HStack {