Felix M. fxm90
fxm90
/ Combine-PassthroughSubject-CurrentValueSubject.swift
Last active
November 17, 2021 00:51
Playground showing the difference between a `PassthroughSubject` and a `CurrentValueSubject`
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| // | |
| // Combine-PassthroughSubject-CurrentValueSubject.playground | |
| // | |
| // Created by Felix Mau on 30.07.20. | |
| // Copyright © 2020 Felix Mau. All rights reserved. | |
| // | |
| import PlaygroundSupport | |
| import Combine |
fxm90
/ ScreenOverlayViewModel.swift
Last active
January 25, 2026 15:12
Example on how to elegantly test a delegate protocol.
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| // | |
| // ScreenOverlayViewModel.swift | |
| // | |
| // Created by Felix Mau on 12.10.19. | |
| // Copyright © 2019 Felix Mau. All rights reserved. | |
| // | |
| import Foundation | |
| protocol ScreenOverlayViewModelDelegate: AnyObject { |
fxm90
/ UIColor+MakeDynamicColor.swift
Last active
January 25, 2026 14:54
Creates an instance of `UIColor`, that generates its color data dynamically based on the current `userInterfaceStyle`. Furthermore this method falls back to the `lightVariant` color for iOS versions prior to iOS 13.
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| // | |
| // UIColor+MakeDynamicColor.swift | |
| // | |
| // Created by Felix Mau on 22/09/19. | |
| // Copyright © 2019 Felix Mau. All rights reserved. | |
| // | |
| import Foundation | |
| extension UIColor { |
fxm90
/ swiftformat.sh
Created
September 1, 2019 10:20
Check "SwiftFormat" installed via CocoaPods. Add a new "Run Script Phase" with this gist.
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| SWIFTFORMAT="${PODS_ROOT}/SwiftFormat/CommandLineTool/swiftformat" | |
| if [ ! -f "$SWIFTFORMAT" ]; then | |
| echo "warning: SwiftFormat not installed!" | |
| exit 1 | |
| fi | |
| $SWIFTFORMAT ./ |
fxm90
/ Observable.swift
Last active
June 16, 2019 14:23
A lightweight implementation of an observable sequence that you can subscribe to.
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| // | |
| // For reusability reasons I've moved the code into a Framework. | |
| // https://github.com/fxm90/LightweightObservable | |
| // |
fxm90
/ UIView+AnimateAlpha.swift
Last active
January 31, 2026 10:00
Animates the `alpha` value of a UIView and updates the `isHidden` flag accordingly.
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| // | |
| // UIView+AnimateAlpha.swift | |
| // | |
| // Created by Felix Mau on 17.12.18. | |
| // Copyright © 2018 Felix Mau. All rights reserved. | |
| // | |
| import UIKit | |
| /// Convenience animation helpers for `GradientActivityIndicatorView` that |
fxm90
/ VerticalGradientImageView.swift
Last active
January 25, 2026 14:49
An image view containing a vertical gradient as background.
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| // | |
| // VerticalGradientImageView.swift | |
| // | |
| // Created by Felix Mau on 23/09/18. | |
| // Copyright © 2018 Felix Mau. All rights reserved. | |
| // | |
| import UIKit | |
| final class VerticalGradientImageView: UIImageView { |
fxm90
/ String+Log.swift
Last active
February 9, 2026 20:37
A simple log extension on `String` using literal expressions
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| // | |
| // String+Log.swift | |
| // | |
| // Created by Felix Mau on 16.09.18. | |
| // Copyright © 2018 Felix Mau. All rights reserved. | |
| // | |
| import Foundation | |
| extension String { |
fxm90
/ CustomNotificationCenterTestCase.swift
Last active
January 25, 2026 15:07
XCTest - Assert notification is (not) posted when using a custom notification center.
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| import XCTest | |
| @MainActor | |
| final class CustomNotificationCenterTestCase: XCTestCase { | |
| func test_notification_isPosted() { | |
| // Given | |
| let notificationCenter = NotificationCenter() | |
| let notificationExpectation = XCTNSNotificationExpectation( | |
| name: .fooBar, |
fxm90
/ NotificationTestCase.swift
Last active
January 25, 2026 15:06
XCTest - Assert notification is (not) posted.
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| import XCTest | |
| @MainActor | |
| final class NotificationTestCase: XCTestCase { | |
| func test_notification_isPosted() { | |
| // Given | |
| expectation( | |
| forNotification: .fooBar, | |
| object: nil, |