Henrik Panhans henrik-dmg

Swift Developer & CS-student

henrik-dmg / SignInWithAppleFirebaseButton.swift

Last active December 22, 2024 17:10

A SwiftUI wrapper around the new Sign in with Apple button that returns OAuthCredentials directly to login with Firebase

	import AuthenticationServices
	import CryptoKit
	import FirebaseAuth
	import Foundation
	import SwiftUI

	// Adapted from https://firebase.google.com/docs/auth/ios/apple?authuser=0

	@available(iOS 14.0, OSX 10.16, tvOS 14.0, *)
	@available(watchOS, unavailable)

henrik-dmg / Size Preserving Aspect Ratio.swift

Created April 30, 2020 13:15

Fits the calling size into the provided while retaining aspec ratio

	extension CGSize {

	func sizeFittingPreservingAspectRatio(_ otherSize: CGSize) -> CGSize {
	if height <= width {
	let scaledWidth = (otherSize.height / height) * width
	return CGSize(width: scaledWidth, height: otherSize.height)
	} else {
	let scaledHeight = (otherSize.width / width) * height
	return CGSize(width: otherSize.width, height: scaledHeight)
	}

henrik-dmg / SystemFont.swift

Created November 25, 2019 19:15

A UIFont extension to enable dynamic for system font styles with any font weight

	import Foundation
	import UIKit

	public extension UIFont {
	static func preferredFont(forTextStyle style: UIFont.TextStyle, weight: UIFont.Weight) -> UIFont {
	let font = style.withWeight(weight)
	let fontMetrics = UIFontMetrics(forTextStyle: style)
	return fontMetrics.scaledFont(for: font)
	}
	}

henrik-dmg / ioslocaleidentifiers.csv

Last active July 18, 2019 13:49 — forked from jacobbubu/ioslocaleidentifiers.csv

iOS Locale Identifiers

We can make this file beautiful and searchable if this error is corrected: No commas found in this CSV file in line 0.

henrik-dmg / Round UIView Corners.swift

Last active January 10, 2019 08:22

	extension UIView {
	func roundCorners(_ corners: Corners, radius: CGFloat) {
	var cornerMasks = [CACornerMask]()

	// Top left corner
	switch corners {
	case .all, .top, .topLeft, .allButTopRight, .allButBottomLeft, .allButBottomRight, .topLeftBottomRight:
	cornerMasks.append(CACornerMask(rawValue: UIRectCorner.topLeft.rawValue))
	default:
	break

henrik-dmg / QRGenerator.swift

Created September 30, 2018 11:31

A function to generate a QR code from Data and then automatically scale it up to the targets size to remove blur

	func generateQRCode(from data: Data) -> UIImage? {
	if let filter = CIFilter(name: "CIQRCodeGenerator") {
	filter.setValue(data, forKey: "inputMessage")

	guard let qrCodeImage = filter.outputImage else { return nil }

	let scaleX = self.codeView.frame.size.width / qrCodeImage.extent.size.width
	let scaleY = self.codeView.frame.size.height / qrCodeImage.extent.size.height
	let transform = CGAffineTransform(scaleX: scaleX, y: scaleY)