Epilogue Nowadays a lot of apps are changing their strategy to use of mobile numbers instead of usernames. Revolut is one example, but I believe that even WhatsApp is asking for your mobile number instead of a username to log in. It is reasonable, since the mobile text service (SMS) is a good candidate for ...
I have been recently working on a HealthKit related app, where I wanted to categorise the blood pressure data. If you are not familiar with this data, here is a little explanation: Measuring Blood pressure Blood pressure build up from 2 numbers: the systolic value and the diastolic value. The valid value ranges for systolic ...
Unfortunately if you want to leverage/play/enjoy the new SwiftUI hot reload capabilities, then you need to update your beloved macOS Mojave to Catalina alongside with the Xcode 11 beta. Ok, so let’s image you can’t wait to download the macOS Catalina Beta (6GB) on your existing system with macOS Mojave and Xcode 10. Getting some ...
Ok, I have already mentioned how to get access to a machine from your web browser, which runs Swift. There is also a good resource from Paul Hudson, who is the author of a dozen of Swift books. Paul decided to write an iOS app, called Unwrap where you can learn the basics of Swift. ...
Update: It has been officially released: https://itunes.apple.com/us/course/developing-ios-10-apps-swift/id1198467120 One of the redditors spotted this YouTube playlist, with the first few lectures of the “Developing Applications for iOS (10), Winter 2017”. According to the videos Paul Hegarty is using Xcode 8, and Swift 3, which is a great news, due to the source code compatibility introduced in ...
In the first post I put the focus on the initializers, in this post I would like to put the nullability into the spotlight. I would also explain why is it a good practice, and how it will help you migrate your existing Objective-C code into Swift. Nullable/Nonnull The idea behind using the nullable/nonnull keyword ...
So, you want to learn the language, but don’t want to buy a Mac? It is possible. Actually I have just downloaded the 2nd edition of the Swift Programming from Big Nerd Ranch, when I realised, that I don’t have access to my beloved Mac, only the company’s HP notebook. Free stuff First of all, ...
Have you ever felt the stress and frustration when your issue navigator is full of warnings and errors? My advice is: Leave your bad feelings behind. Believe or not, compiler warnings and errors are your best friends. Why am I saying this? Because the ability to catch bug, or a possible problem in your code ...
I think the time is finally here to (re)think your approach to Swift. It has been in the wild for long enough time to see how smart step was to make it from scratch and publish it as open sourced. In short: it was really smart. I purposely wrote “Swift developer” in the title, since ...