AppVenture

Guides

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🗝 KeyPaths

Keypaths allow type-safe abstractions over properties that go beyond what can be done with protocols alone. This guide introduces by solving practical problems

case (is Bool, let x as Int)
     where x > 10

🧩 Pattern Matching

In this post, we'll have a look at Pattern Matching in Swift in terms of the 'switch', 'for', 'if', and 'guard' keywords. We'll have a look at the basic syntax and at best practices and helpful examples.

protocol Host {
 associatedType Client
}

🧙🏻 Associated Types

Understand how to model your way around some of the issues that arise when introducing associated types into your protocols

var body : some View

🚀 SwiftUI [Beta]

SwiftUI is a generational milestone for the Apple development ecosystem. This is a in-development introduction into the topic.

#if targetEnvironment(UIKitForMac)

🖥 Ultimate Catalyst Guide

Catalyst ports your iPad apps over to macOS. This guide contains a ton of tips and tricks to help you succeed in adding Catalyst support to your app

More Guides

Articles

Wed, 17 Jun 2020

A touch of Combine

A simple way of introducing Combine into your codebase

Wed, 15 May 2019

The usefulness of typealiases in swift

When thinking about the great language features of Swift, few people think about typealias first. However, there're many situations where they can become particularly useful.

Wed, 20 Mar 2019

Relaunching Appventure

Appventure has been relaunched to focus more on Swift

Sun, 17 Mar 2019 #protocol #composition

Using protocol composition to untangle your codebase

A simple way to untangle your codebase via protocols. Particularly useful for project configurations.

Sun, 24 Feb 2019 #tuple #struct

Cleaner Classes with Structs and Tuples

An easy way to add more structure to your classes by leveraging structs and enums

Thu, 03 May 2018

Expanding Swift's Reach

How can we as a community help expanding the reach of Swift

Sun, 08 Oct 2017

Taming SourceKitService for Less Xcode Memory Consumption

Taming SourceKitService for less Xcode memory consumption

Sat, 30 Sep 2017 #struct #value type

Value Types for Simple Difference Detection

Utilize value types to quickly determine a differences between two sets of data

Fri, 15 Jul 2016 #Data

Data in Swift 3 parsing a Doom WAD File

Swift 3 replaces NSData with the Data value type. Implement a Doom Wad file parser with the new Data type to understand the differences.

Sat, 23 Apr 2016 #enum #init #associated

Raw value initializers for enums with associated types

Once you add associated types to an enum the task of creating instances quickly becomes very repetitive. See how a simple trick can greatly simplify this

Thu, 14 Apr 2016 #optional

Force optionals in multi-unwrapped 'guard let' or 'if let'

Mixing optional and non-optional functions in a guard is impossible and requires breaking up the lines. Here's a neat solution on how to circumvent this.

Tue, 29 Mar 2016 #enum #guard #if let

Three tips for concise Swift using the Guard statement

Three quick examples for how you can use guard to write shorter and simpler code

Tue, 08 Dec 2015 #package

Swift Package Manager: Create and Use a X11 package on Linux

A tutorial on how to create a Swift Package for X11 on Linux and use it to write a simple X11 app

Wed, 30 Sep 2015

Getting your iPhone 6s Chip Foundry from Swift

This quickly explains how you use private apis from Swift in order to figure out the manufacturer of your fancy new iPhone 6S CPU

Tue, 25 Aug 2015 #try #error

Optional throw via try? in Swift 2

Swift 2.0 includes a new way of handling exceptions via the try? keyword. This is a quick post to explain the basics, and why this is cool.

Fri, 19 Jun 2015 #try #catch

Using try / catch in Swift with asynchronous closures

Swift's try / catch error handling is great. However, you can't use it in an async context. This article briefly explains which options you have if you intend to use Error Handling asynchronously

Wed, 17 Jun 2015 #generics #protocols #overload

Generic method overloading by protocol in Swift

See how you can even overload methods in a generic manner by using protocols

Sun, 08 Jun 2014 #autoclosure

Using @autoclosure to write a Swift syntax extension

Swift's @autoclosure allows to extend the Swift syntax in fantastic ways. Observe how we re-implement the cond function from Lisp