How do I present error banners in UIKit with Swift?

Swift, UIKit, error banners, error handling, iOS development
Learn how to present error banners in UIKit with Swift, enhancing user experience during error handling.
import UIKit class ErrorBanner { static func showError(in view: UIView, message: String) { let banner = UIView() banner.backgroundColor = UIColor.red banner.layer.cornerRadius = 10 banner.translatesAutoresizingMaskIntoConstraints = false let label = UILabel() label.text = message label.textColor = UIColor.white label.translatesAutoresizingMaskIntoConstraints = false banner.addSubview(label) view.addSubview(banner) NSLayoutConstraint.activate([ banner.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16), banner.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16), banner.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 16), label.centerYAnchor.constraint(equalTo: banner.centerYAnchor), label.leadingAnchor.constraint(equalTo: banner.leadingAnchor, constant: 16), label.trailingAnchor.constraint(equalTo: banner.trailingAnchor, constant: -16), banner.heightAnchor.constraint(equalToConstant: 50) ]) UIView.animate(withDuration: 0.5, animations: { banner.alpha = 1 }, completion: nil) // Remove banner after a delay DispatchQueue.main.asyncAfter(deadline: .now() + 3) { UIView.animate(withDuration: 0.5, animations: { banner.alpha = 0 }) { _ in banner.removeFromSuperview() } } } }

Swift UIKit error banners error handling iOS development

Related Questions

How do I avoid rehashing overhead with std::set in multithreaded code?

How do I find elements with custom comparators with std::set for embedded targets?

How do I erase elements while iterating with std::set for embedded targets?

How do I provide stable iteration order with std::unordered_map for large datasets?

How do I reserve capacity ahead of time with std::unordered_map for large datasets?

How do I erase elements while iterating with std::unordered_map in multithreaded code?

How do I provide stable iteration order with std::map for embedded targets?

How do I provide stable iteration order with std::map in multithreaded code?

How do I avoid rehashing overhead with std::map in performance-sensitive code?

How do I merge two containers efficiently with std::map for embedded targets?