TuenTuenna

import SwiftUI

struct BlogPost {
    
    let title: String
    let author: String
    let article: String
    

TuenTuenna

넘버 포매터

extension Formatter {
    static let withSeparator: NumberFormatter = {
        let formatter = NumberFormatter()
        formatter.numberStyle = .decimal
        formatter.groupingSeparator = "," // 천 단위마다 , 콤마 넣어주기
        return formatter
    }()
}

TuenTuenna

//
//  ContentView.swift
//  NavigationLinkTest
//
//  Created by Jeff Jeong on 2022/04/08.
//

import SwiftUI
struct ContentView: View {

TuenTuenna

UITabBarController 에 탭바를 가져오기 위한 TabBarAccessor

// Helper bridge to UIViewController to access enclosing UITabBarController
// and thus its UITabBar
struct TabBarAccessor: UIViewControllerRepresentable {
    var callback: (UITabBar) -> Void
    private let proxyController = ViewController()

    func makeUIViewController(context: UIViewControllerRepresentableContext<TabBarAccessor>) ->
                              UIViewController {

TuenTuenna

// SwiftUi 드래그 팝 제스쳐 가능하도록 등록 
extension UINavigationController: ObservableObject, UIGestureRecognizerDelegate {
    override open func viewDidLoad() {
        super.viewDidLoad()
//        navigationBar.isHidden = true
        interactivePopGestureRecognizer?.delegate = self
 }

TuenTuenna

import UIKit


// 끝에 async 를 붙인다.
func performHeavyTask() async {
    // Run some heavy tasks here...
    print("하하하하하")
    await Task.sleep(2_000_000_000)
    print("기다림")

TuenTuenna

import UIKit

var greeting = "Hello, playground"

// 경우
enum Grade {
    case kinderGarden
 case elemetary

TuenTuenna

앱 버전 체커

import Foundation
import Alamofire

extension String {
    func versionCompare(_ otherVersion: String) -> ComparisonResult {
        let versionDelimiter = "."

TuenTuenna

import Foundation
import UIKit

extension UIView {
    
    class func fromNib(named: String? = nil) -> Self {
        let name = named ?? "\(Self.self)"
 guard let nib = Bundle.main.loadNibNamed(name, owner: nil, options: nil) else { fatalError("name Error") }

TuenTuenna

더미 입력 폼

import Foundation
import SwiftUI

struct SomeFormView : View {