If you get an error “<your project path> building for iOS Simulator, but linking in an object file built for iOS, file <your project path> for architecture arm64”, you need to open it using Rosetta — This error message shows when you try to run iOS stimulators on M1 Mac.

A step-by-step tutorial for the beginners of git — I found that the biggest barrier that hinders me from learning git is git editor, and I believe lots of people are struggling to learn git like I used to be. You can find tons of articles that teach you how to combine two commits on the internet, but none…

textLabel, detailTextLabel, and imageView are deprecated in iOS 14. Now we should use configurations for our cells and views. — We used to set the content and styling of the image and text on a cell directly before UIListContentConfiguration was introduced in WWDC20. You must be familiar with these lines of code. This is how we customised the built-in imageView and textLabel of a UITableViewCell.

The simplest way to make collection view cells with dynamic width or height — Self-sizing cells are widely used in my projects. It took me hours to google the solution when I was a beginner in iOS development. Creating self-sizing cells are actually very simple. …

Packet sniffing tutorial for beginners: how to capture the packets sent and received by iOS Apps on your Mac — I’m recently doing an IoT project. Sometimes I have to investigate more complex problems that potentially happen in the network layer, so I use Wireshark to capture the network traffic between my iOS apps and IoT hardware. Let’s see how to start packet sniffing using Wireshark! Install Wireshark

Write clean code with @propertywrapper in Swift — “A property wrapper adds a layer of separation between code that manages how a property is stored and the code that defines a property.” — Swift documentation It encapsulates extra logic to properties and limits access to the available property values. @propertyWrapper was introduced to Swift in Swift 5.1. Now…

Azure AZ-900 exam preparation guide and experience sharing — The city I live in is experiencing its worst moment of the pandemic and has been under quasi-lockdown since mid-May. I have got more spare time since working from home saves a lot of time commuting to the office. …

The 3 most commonly used skills of working with dates you must learn — Do you feel hard to get your head around Date(), DateFormatter(), DateComponents(), and other date-related types, but you just want your code to work as expected? This article will save you the trouble! In this article, I will be focusing on the 3 most commonly used skills of manipulating dates: …