mattt

import UIKit

#if canImport(SwiftUI) && DEBUG
import SwiftUI
struct UIViewControllerPreview<ViewController: UIViewController>: UIViewControllerRepresentable {
    let viewController: ViewController

    init(_ builder: @escaping () -> ViewController) {
        viewController = builder()
    }

felginep

import Foundation
import UIKit

struct ViewStyle<T> {
    let style: (T) -> Void
}

let filled = ViewStyle<UIButton> {
    $0.setTitleColor(.white, for: .normal)
    $0.backgroundColor = .red

laurilehmijoki

import RxSwift // Version 3.2.0
import RxCocoa // Version 3.2.0

func keyboardHeight() -> Observable<CGFloat> {
    return Observable
            .from([
                    NotificationCenter.default.rx.notification(NSNotification.Name.UIKeyboardWillShow)
                            .map { notification -> CGFloat in
                                (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue.height ?? 0
                            },