-
Что такое
полиморфизм
? -
Что такое *инкапсуляция? Что такое *нарушение инкапсуляции?
-
Чем
абстрактный
класс отличается отинтерфейса
? -
Расскажите о
паттерне MVC
. Чем отличаетсяпассивная
модель отактивной
?
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import Foundation | |
// MARK: - Comparable | |
extension NSDecimalNumber: Comparable {} | |
public func ==(lhs: NSDecimalNumber, rhs: NSDecimalNumber) -> Bool { | |
return lhs.compare(rhs) == .OrderedSame | |
} |
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func takeScreenshot(view: UIView) -> UIImageView { | |
UIGraphicsBeginImageContext(view.frame.size) | |
view.layer.renderInContext(UIGraphicsGetCurrentContext()) | |
let image = UIGraphicsGetImageFromCurrentImageContext() | |
UIGraphicsEndImageContext() | |
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil) | |
return UIImageView(image: image) | |
} |
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import UIKit | |
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource { | |
@IBOutlet weak var tableView: UITableView! | |
override func viewDidLoad() { | |
super.viewDidLoad() | |
NSLayoutConstraint.activate([ | |
tableView.topAnchor.constraint(equalTo: view.topAnchor), |
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// | |
// ComposeView.swift | |
import UIKit | |
class ComposeView: UIView { | |
// ........ | |
// Other layout code and methods | |
// ........ | |
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// UICollectionView Objective-C example | |
- (void)viewWillAppear:(BOOL)animated { | |
[super viewWillAppear:animated]; | |
NSIndexPath *selectedIndexPath = [[self.collectionView indexPathsForSelectedItems] firstObject]; | |
if (selectedIndexPath != nil) { | |
id<UIViewControllerTransitionCoordinator> coordinator = self.transitionCoordinator; | |
if (coordinator != nil) { | |
[coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) { |
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// | |
// TokenAcquisitionService.swift | |
// | |
// Created by Daniel Tartaglia on 16 Jan 2019. | |
// Copyright © 2024 Daniel Tartaglia. MIT License. | |
// | |
import Foundation | |
import RxSwift |