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A weekly Swift Blog on Xcode and iOS Development

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Recent Posts

Share Swift Code between Swift On Server Vapor and Client App

Sharing Swift code between a backend and client app is one of the benefits you'll get when working with Swift ...
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  •  5 min read / Swift

10 Tips to Get Your App Featured on the App Store

Getting your app featured on the App Store allows you to gain organic growth and more reach. Users can find ...
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  •  5 min read / Optimization

Ranges in Swift explained with code examples

Ranges in Swift allow us to select parts of Strings, collections, and other types. They're the Swift variant of NSRange ...
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  •  4 min read / Swift

Swift Keywords

Do you know how to use each keyword in Swift?
Click on the keyword to learn more and explore code examples.

actor associatedtype async @autoclosure available await break catch class continue defer @discardableResult @dynamicCallable @dynamicMemberLookup enum @escaping fileprivate for @globalActor guard infix isolated lazy @MainActor nonisolated optional postfix @propertyWrapper private protocol required @resultBuilder rethrows sendable some struct subscript throw throws try typealias @unchecked @unknown unowned weak where while

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Learn more about Swift

Share Swift Code between Swift On Server Vapor and Client App

Sharing Swift code between a backend and client app is one of the benefits you'll get when working with Swift ...
  •  5 min read / Swift

Ranges in Swift explained with code examples

Ranges in Swift allow us to select parts of Strings, collections, and other types. They're the Swift variant of NSRange ...
  •  4 min read / Swift

MainActor usage in Swift explained to dispatch to the main thread

MainActor is a new attribute introduced in Swift 5.5 as a global actor providing an executor which performs its tasks ...
  •  4 min read / ConcurrencySwift

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Learn SwiftUI

Universal Links implementation on iOS

Universal Links allow you to link to content inside your app when a user opens a particular URL. Webpages will ...
  •  5 min read / SwiftUI

Deeplink URL handling in SwiftUI

Deeplinks allow you to open your app and navigate into a specific location right after launch. An example could be ...
  •  5 min read / SwiftUI

View Composition using ViewModifiers in SwiftUI

View Composition allows you to create reusable components to create enriched views. You can extract logic into reusable components using ...
  •  4 min read / SwiftUI

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Combine all the things

@Published risks and usage explained with code examples

@Published is one of the property wrappers in SwiftUI that allows us to trigger a view redraw whenever changes occur ...
  •  4 min read / CombineSwiftUI

RunLoop.main vs DispatchQueue.main: The differences explained

RunLoop.main and DispatchQueue.main are often used as schedulers within Combine. During code reviews, I often encounter inconsistency in using one ...
  •  3 min read / Combine

PassthroughSubject vs. CurrentValueSubject explained

PassthroughSubject and CurrentValueSubject are two types from the Combine framework that conforms to the Subject protocol. Both are very similar ...
  •  4 min read / Combine

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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 ...
  •  3 min read / CombineCore Data

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 ...
  •  3 min read / Core Data

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 ...
  •  3 min read / Core Data

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Be an expert on Xcode

Running Xcode on top of iPad

Using the latest Xcode 14.3 and the iPad Pro (12.9 Inch) with iOS 16.4 beta, I've been able to run ...
  •  2 min read / Xcode

RocketSim 10.0: Builds Apps Faster

RocketSim is a developer tool that gives your iOS Simulator extra functionalities to increase day-to-day development productivity. Floating windows become ...
  •  13 min read / Xcode

Xcode Simulator Directories Exploration

Xcode Simulator directories allow you to find related files for your app. Unlike on a real device, you can access ...
  •  4 min read / OptimizationXcode

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Get better at debugging

Network Extension Debugging on macOS

A Network Extension on macOS allows you to create content filters, DNS proxies, and more. They integrate nicely into the ...
  •  4 min read / Debugging

Deadlocks in Swift explained: detecting and solving

Deadlocks in Swift can make your app hang, causing a frustrating situation for both you and your users. Your app ...
  •  4 min read / DebuggingSwift

Debugging SwiftUI views: what caused that change?

Debugging SwiftUI views is an essential skill to own when writing dynamic views with several redrawing triggers. Property wrappers like ...
  •  6 min read / DebuggingSwiftUI

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Improve your workflow

Location Simulation in Xcode’s Simulator

Location Simulation is a critical feature for apps that provide location access. You want to mimic the environment of real ...
  •  4 min read / Workflow

Testing push notifications on the iOS simulator

Testing push notifications in the iOS simulator make adding support for remote notifications much more effortless. You often must iterate ...
  •  4 min read / Workflow

Side Projects: 10 Tips for being successful

It's common to have a side project as an engineer since we can build our ideas. At the same time, ...
  •  6 min read / OptimizationWorkflow

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Optimize yourself and improve

10 Tips to Get Your App Featured on the App Store

Getting your app featured on the App Store allows you to gain organic growth and more reach. Users can find ...
  •  5 min read / Optimization

Xcode Simulator Directories Exploration

Xcode Simulator directories allow you to find related files for your app. Unlike on a real device, you can access ...
  •  4 min read / OptimizationXcode

Engineering goals: How to become a more successful developer

Engineering goals create focus and help you achieve the milestones of becoming a successful developer. You'll know better what you've ...
  •  4 min read / Optimization
Explore categories Swift Combine Concurrency SwiftUI Core Data Xcode Debugging Workflow Optimization Most Popular Posts

  1. Share Swift Code between Swift On Server Vapor and Client App
  2. Async await in Swift explained with code examples
  3. MainActor usage in Swift explained to dispatch to the main thread
  4. URLSessionConfiguration: Exploring opt-in configurations
  5. Testing push notifications on the iOS simulator

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