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Presenting sheets with UIKit using a UISheetPresentationController
WWDC 2021 introduced iOS 15 with many API changes, including improvements to presenting sheets in UIKit with the new UISheetPresentationController ...
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WWDC 2021 Events, Parties, and Panels you don’t want to miss
WWDC 2021 is around the corner and will bring a ton of (home)work for all of us. A new Xcode, ...
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Swift Jobs: How to make the right career move
Swift jobs are something we're all interested in if you're reading my articles more often. Companies are hiring remotely more ...
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Learn more about Swift
Presenting sheets with UIKit using a UISheetPresentationController
WWDC 2021 introduced iOS 15 with many API changes, including improvements to presenting sheets in UIKit with the new UISheetPresentationController ...
Swift Jobs: How to make the right career move
Swift jobs are something we're all interested in if you're reading my articles more often. Companies are hiring remotely more ...
Fileprivate vs private in Swift: The differences explained
Fileprivate and private are part of the access control modifiers in Swift. These keywords, together with internal, public, and open, ...
Learn SwiftUI
How to create a Conditional View Modifier in SwiftUI
Conditional View Modifier creation in SwiftUI allows you only to apply modifiers if a certain condition is true. Whether it's ...
How to create a Dynamic Pager View for onboardings
A pager view in SwiftUI like we know UIPageViewController in UIKit didn't exist until iOS 14 and macOS 11.0. Using ...
Getting started with UIKit in SwiftUI and vice versa
SwiftUI can work together with UIKit by making it easier to add SwiftUI views to UIKit and visa versa using ...
Combine all the things
How to observe NSManagedObject changes in Core Data using Combine
Observing changes in Core Data NSManagedObject instances with Combine publishers can be a great solution to keep your user interface ...
Getting started with the Combine framework in Swift
Combine was introduced as a new framework by Apple at WWDC 2019. The framework provides a declarative Swift API for ...
Error handling in Combine explained with code examples
Once you get started with Combine you'll quickly run into error handling issues. Each Combine stream receives either a value ...
Dive into Core Data
How to observe NSManagedObject changes in Core Data using Combine
Observing changes in Core Data NSManagedObject instances with Combine publishers can be a great solution to keep your user interface ...
Data validation on insertion, update, and deletion in Core Data
Data validation in apps is important to make sure we save data conforming to the business rules. A name should ...
Derived Attributes to improve Core Data Fetch Performance
Derived attributes are available since iOS 13 and aim to improve fetch performance in many different scenarios. Although we have ...
Be an expert on Xcode
Xcode Mark Line to improve readability using // Mark: comments
Xcode Mark Lines allows us to create a better overview of sections within our classes or structs. A so-called mark ...
Build performance analysis for speeding up Xcode builds
Build performance can be analysed in Xcode to speed up Xcode builds. This can easily speed up your workflow and ...
Overriding UserDefaults for improved productivity
UserDefaults within apps are used to store data related to user configurations. It's an easily accessible data store for saving ...
Get better at debugging
OSLog and Unified logging as recommended by Apple
OSLog as a replacement of print and NSLog is the recommended way of logging by Apple. It's a bit harder ...
Using Custom debug descriptions to improve debugging
Custom debug descriptions can help you debug your own custom objects, structs, errors, and other types. Whenever you print out ...
No space left on device: Testing low storage scenarios
No space left on device is an error message that starts to show up more lately. Over the years, storage ...
Improve your workflow
RocketSim 4.0: Compare designs & record the Simulator with Touches
RocketSim 4.0 is available as of today and comes with a few major new features. Designs from Sketch and Figma ...
OSLog and Unified logging as recommended by Apple
OSLog as a replacement of print and NSLog is the recommended way of logging by Apple. It's a bit harder ...
Full-screen development with Xcode and the Simulator
While developing apps it's important to create focus to get in your flow and speed up development. Full-screen mode can ...
Optimize yourself and improve
App Launch Time: 7 tips to increase performance
App Launch Time is the time it takes before your app becomes responsive after startup. As the first experience of ...
Build performance analysis for speeding up Xcode builds
Build performance can be analysed in Xcode to speed up Xcode builds. This can easily speed up your workflow and ...
WWDC 2020: 7 Tips to prepare yourself
In less than a week we will know what WWDC 2020 has brought to us. Apple has been working hard ...
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SwiftLee Jobs
- At Air apps, our mission is to combine the simplicity and greatness of Apple products by creating utility and productivity […]
- Stream is hiring for an iOS Developer Advocate to join the Developer Relations team. Stream’s APIs for activity feeds and […]
- Paper® is the immersive sketching app for capturing ideas anywhere. Over 30 million people have found their personal creative space […]
- Work with Swift, SwiftUI, and Combine in a project that’s fully written in Swift. A modular foundation built with Swift […]