pookjw

import SwiftUI

struct ContentView: View {
    @EnvironmentObject var myViewModel: MyViewModel
    @State private var showDetailView = false
    
    var presentationButton: some View {
        Button(action: { self.showDetailView.toggle() },
               label: { Text("Button") })
            .sheet(isPresented: self.$showDetailView,

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public extension Character {
    static func randomHangul() -> Character {
        let startHexIndex: String = "AC00"
        let endHexIndex: String = "D7AF"
        guard let startDecIndex = Int(startHexIndex, radix: 16) else { return "엥" }
        guard let endDecIndex = Int(endHexIndex, radix: 16) else { return "엥" }
        
        let randomIndex = Int.random(in: startDecIndex...endDecIndex)
        guard let unicode = UnicodeScalar(randomIndex) else { return "엥" }
        

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#import "NSString+RandomHangul.h"

@implementation NSString (RandomHangul)

+ (NSString *)randomHangul {
    NSUInteger startIntIndex = 0xAC00;
    NSUInteger endIntIndex = 0xD7AF;
    NSUInteger randomIndex = rand() % (endIntIndex + 1 - startIntIndex) + startIntIndex;
    
    return [NSString stringWithFormat:@"%C", (unichar)randomIndex];

pookjw

adjustsLetterSpacingToFitWidth

UILabel에는 adjustsLetterSpacingToFitWidth라는 것이 있다.

@property(nonatomic) BOOL adjustsLetterSpacingToFitWidth;

IB에서는 Tighten Letter Spacing이라고 적혀 있는데, property 이름을 보면 이게 무슨 역할인지 알 수 있다.

pookjw

import UIKit

extension UIView {
    public func removeAllInteractions() {
        interactions.forEach { [weak self] interaction in
            self?.removeInteraction(interaction)
        }
    }
}

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import Cocoa

extension NSTableView {
    internal func scrollToTop() {
        guard let headerViewHeight: CGFloat = headerView?.frame.height else {
            scroll(.zero)
            return
        }
        scroll(CGPoint(x: 0, y: -headerViewHeight))
    }

pookjw

import Cocoa

extension NSTextField {
    internal func setLabelStyle() {
        isEditable = false
        isSelectable = false
        maximumNumberOfLines = 0
        isBezeled = false
        drawsBackground = false
        preferredMaxLayoutWidth = 0

pookjw

//
//  ViewController.swift
//  ConcurrencyApp
//
//  Created by Jinwoo Kim on 6/8/21.
//

import UIKit

extension OperationQueue {

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import Foundation
import Combine

extension Publisher {
    func withUnretained<T: AnyObject>(_ object: T) -> Publishers.CompactMap<Self, (T, Self.Output)> {
        compactMap { [weak object] output in
            guard let object = object else {
                return nil
            }
            return (object, output)

pookjw

#import <UIKit/UIKit.h>

@interface _TtC4Toss11AppDelegate
- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey, id> *)options;
@end

@interface _TtC9KakaoTalk17TalkSceneDelegate
- (void)scene:(UIScene *)scene openURLContexts:(NSSet<UIOpenURLContext *> *)URLContexts;
@end