Swift
Swift Cheat Sheet: Common Syntax, Patterns, and Shortcuts
Just a bunch of short expressions in Swift.
Xcode
iOS Auto Layout in Xcode: Position Views Relative to Each Other
Positioning views relative to one another with auto-layout was fairly tricky until...
iOS
Stack Views on iOS 8 with Auto Layout (Without UIStackView)
While starting iOS 9 we have UIStackView, it is a little bit tricky to stack views vertically or horizontally.
Swift
Using guard in Swift to Test for Empty Strings Safely
In Swift, we have a syntax candy called 'guard'..
Xcode
Debug Auto Layout Constraints with Xcode 7’s Debug View Hierarchy
A small button named 'Debug view hierarchy', displays current view hierarchy in 3D.
Swift
VIPER Architecture in Swift: How to Decouple iOS Modules
Decouple, separate, disengage, or dissociate (something) from something else.
Swift
Fix “was deallocated while key value observers were still registered” Crashes in Swift
Debugging errors that are a result of observers being added to an object and not removed from it can be hard.
Swift
Swift Error Handling: Catching Throwing Functions with a Helper Wrapper
Recently we had a need in a general way to catch calls that can throw an exception.
Xcode
Xcode 8 Core Data: Create NSManagedObject Subclasses in a Swift Project
In Xcode 8, it is no longer possible to create NSManagedObject subclasses...
Swift
Swift 3 Compiler Segmentation Fault 11: Generics and Nested Functions Workaround
The following code is causing a compiler crash when compiled with Swift 3 and Xcode 8...
Swift
Optimize UICollectionView and UITableView Updates with Batch Inserts in Swift
Collection view is highly optimized and works great out of the box.
ReactiveSwift
ReactiveSwift: The Key Difference Between Signal and SignalProducer
A property in ReactiveSwift allows us to track its changes over time.
Swift
ReactiveSwift Playground Setup: Fix “No Such Module ‘Result’” in Xcode
According to the documentation, to use ReactiveSwift.playground the following steps must be performed...
Swift
ReactiveSwift flatten Operator: latest, concat, and merge Explained
The power of ReactiveSwift lies within its operators!
Xcode
Fix UICollectionView “Terminating with Uncaught NSException” Crashes
ne of our views that contains a UICollectionView started crashing once in a while...
Swift
Fix Unwanted Top Padding in UICollectionView on iOS 10
On iOS 10, a collection view embedded in a view has unexpected padding at the top.
RxSwift
RxSwift.Resources: Fix “Use of Unresolved Identifier 'Resources'”
RxSwift.Resources are being used to detect memory leaks during pre release tests. Solving Use of unresolved identifier 'Resources' error.
Swift
UICollectionView Self-Sizing Cells: Dynamic UILabel Layout on iOS 10
All we needed was a simple UICollectionView with just one cell that contained a label ...
iOS
Fix Auto Layout "Unable to Satisfy Constraints" for Fixed-Height Views in Cells
We needed a collection view cell that contained an image view and a label.
RxSwift
RxSwift: How to Avoid Memory Leaks with DisposeBag and Resource Tracking
RxSwift is a powerful framework and, as always, with power comes responsibility.
Swift
Create a Swift Framework That Uses C Code in Xcode
How to create a framework that uses C with Xcode
Swift
UIScrollView with Auto Layout in Code: Step-by-Step Guide for iOS 12+
It is fairly easy to use UIScrollView with the AutoLayout on iOS 12+ but only if one follows the following steps ...
Swift
When to Use [weak self] in Swift Closures (and When You Don’t Need It)
It has become pretty common among Swift experts to always use [weak self] inside of a closure to avoid retain cycles ...
Swift
XCTestCase wait Helper: Wait for Conditions Without Manual Expectations
XCTest expectations are great but it is not easy to use them.
Swift
Dependency Injection in Swift: Why and How to Inject Dependencies
Why do we need to inject dependencies and some tools that help with it...
