Tips
A collection of bite-size iOS and programming tips easy to digest.
Easy way to detect a retain cycle in a view controller
A view controller is one component where memory leak usually takes place since it holds many pieces together. One of the easiest ways to detect them is to see if a view controller is not being deallocated. Let's see how Xcode breakpoint can help you find a leak.
Match a view's shadow to the Sketch shadow
Learn how to set shadow spread and blur from a Sketch design.
How to compare two app version strings in Swift
Learn how to check your app version strings are higher or lower.
How to split a string into an array of substrings in Swift
Learn different ways to split a string into an array of substrings.
How to make multi-line text in UIButton
The default appearance of UIButton is a single line text, but it also supports a multi-line text with some minor tweak.
How to preserve a struct memberwise initializer when you have a custom initializer
A tip to declare a custom initializer without losing a memberwise initializer.
Memberwise Initializers for Structure Types
Struct is one of the basic building blocks in your app. Today I'm going to share some tips about memberwise Initializers.
How to display HTML in UILabel and UITextView
When you work with an API, there would be a time when your backend wants to control a text style, and HTML is the most common format for the job. Do you know that WKWebView is not the only way to present HTML string? Learn how to render it in UILabel and UITextView.
How to remove text from navigation bar back button
There are a lot of hacky ways to modify or remove a back button title. This tip will show you how to do it properly.
Useful Xcode shortcuts for unit testing
Testing is a process we do along with our development. Knowing shortcuts would help you save some time, which will add up in the long run.
Class-only Protocols: class or AnyObject
If you are still declaring class-only protocols by inheriting them from class, you might need to revise your knowledge.
How to remove Cocoapods from your project
Swift Package Manager is getting better every day. It is a matter of time before everyone supports it. When the time comes, make sure you know how to say goodbye to this old friend.
How to read a Property List (plist) into the code
When I want to keep some information or configuration out of a code base and don't want something fancy, I usually save it as Property List file. Let's see how to do it.
How to create a new Xcode project without Storyboard
Modify AppDelegate or SceneDelegate to support a non-storyboard approach.
Testing Remote Push Notification in iOS simulator
A new and easier way to test Apple push notification on iOS simulator.
Print unescaped string output in Swift
How to print object (po) in a debugger (lldb) without escape special characters.
Manually symbolicate crash reports
A guide to decode a gibberish crash report to a human readable format.
Caching dependencies in Github Actions
How to cache Pods, Ruby gem, and Carthage in your iOS project.
Take a screenshot and record a video in iOS Simulator
Learn how to do all of this without any external tools.
Create a new iOS12 project in Xcode11
Required modifications to make your newly created project work in iOS 12 or lower.