A developer's search for code greatness
Leave the code cleaner than you found it. – Uncle Bob The Boy Scout Rule is one of my favorite clean code rule. It takes a different mindset to apply it. The code becomes shared responsibility. You don’t reach out Continue reading The Boy Scout Rule
A couple of month ago I found this algorithms course on Coursera. I remembered how much I liked algorithms and I thought it would be good to refresh my knowledge, so I signed up for it. Even though I don’t get to Continue reading Reading a file in Swift
Before iOS 8, if you wanted to alert the user about something, you would use an UIAlertView like this: UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@”Pre iOS 8 style” message:@”Old style alert” delegate:self cancelButtonTitle:@”Cancel” otherButtonTitles:@”OK”, nil]; [alertView show]; In iOS 8, Continue reading Alerts and action sheets in iOS 8
Today’s challenge is to create a timer app. This is a challenge that I received as part of a job interview, with a time constraint of 5 minutes. I like the idea and think this is a nice example of how we Continue reading Swift Fun with Timers and GCD
The title for this post was supposed to be “6 things I love about Swift”. But then a quick search on Google revealed that most of the world thinks about Taylor Swift and not Swift the programming language. Who knew Continue reading 6 things I love about the Swift programming language
In previous posts we have talked about how to setup products in iTunes Connect, how to write code to retrieve the list of products, how to implement the buying transaction and how to download content. Today we are going to Continue reading In-App Purchase – How to restore purchases
In the previous tutorial we have added a buy button and implemented the payment transaction. The next step is to provide the content that the user paid for. In our case we want to download some photos that are hosted on Continue reading In-App Purchase – How to download content hosted on the Apple server
In the first part of this tutorial we have seen how to setup products in iTunes Connect and in the second part we have seen how to retrieve them and present them in a table view. In this part we Continue reading In-App Purchase – How to implement the payment transaction
In the first part of this tutorial about In-App Purchase we have seen how to setup an app and configure everything in iTunes Connect. This second part assumes that you have already at least one product configured in iTunes Connect and Continue reading In-App Purchase – How to retrieve the list of products from the App Store
In this article we are going to talk about In-App Purchase. The freemium model seems to be very successful in the App Store these days so if you’re thinking of implementing it, read on. Before you even think about code Continue reading In-App Purchase – How to setup products in iTunes Connect
Swift optionals are a way to indicate the absence of a value for any type. In Objective C you would use nil, however that only worked for objects, not for structs or enumerations or basic C types like int. For Continue reading Swift Optionals
We all knew Apple is going to release new features and APIs at WWDC this year and half way through the keynote there were already lots of new and exciting announcements. And then, out of the blue, Swift came along Continue reading Hello Swift!
With the introduction of ARC, memory management became easier. However, even though you don’t have to worry about when to retain and release, there are still a few rules you need to know in order to avoid memory problems. In Continue reading Avoid strong reference cycles
Rounded avatars seem to be very fashionable these days. Even Apple adopted the rounded images for contacts. If you’re wondering how to achieve this in your app here is the answer. All we need to do is adjust the CALayer Continue reading Rounded images
Xcode is the most used IDE for iOS development. Apple is doing a great job in updating and adding features to it. Knowing how to take advantage of its capabilities can help you code faster and more efficiently. Xcode’s workspace Continue reading Xcode 5 – Tips and tricks