There’s times when you need to investigate regressions in your project, and you don’t know have any clue as why something is happening. Git bisect is the best tool for this cases, but it can be painful to use in non small projects using CocoaPods and Xcode. I want to share what I’ve been doing to ease the pain.

Today I want to share a small utility we’ve been using for a while at Peak, my current workplace, to control the system time inside the application and save time while testing or debugging.

I always like to check the new build settings and analyzer improvements of every Xcode release. And this year’s main release includes a couple of goodies. Let’s check them out!

The latest xcode beta is available for downloading. There are many improvements, and the usual problems with stuff that stops working… Ah the love of Apple for it’s developers :). But I want to tell you about a feature that caught my attention: New analyzer settings!

New analyzer settings

From the release notes:

The static analyzer warns when nil is returned from a method or function with a nonnull return type or is passed to a parameter marked nonnull.

Having worked in companies developing their own products, I’ve faced many times the problem developers encounter when building iOS applications: Your biggest 3rd party dependency - the OS SDK - is changing under you every year. How does your team deal with this in a maintainable way?

‘Know your key shortcuts’ is the mantra of the productive programmer. I’ve chosen to try using the same keybindings everywhere, investing time and learning Vim. And using xvim in Xcode. In this article I’m going to try to explain why I did this, and I’ll share my experience of the process.

I’ve recently changed workplace - we’re hiring! - and I’ve jumped into an existing codebase. This is a good time to review what I like to do when I start to work on a project in these circumstances.

Yesterday my last post on the series ‘Let’s build Freehand Drawing for iOS’ has been published at Badoo Tech blog. It’s been a very good experience for me, and of course I recommend you visit the tutorials if you are interested.

I divided the tutorials in 3 parts:

• Part 1: Introduces the feature and a naive implementation
• Part 2: Adds undo functionality, refactoring along the way
• Part 3: Improves stroke to make it look smoother

Building tutorials is hard

This series has been my first take on writing technical tutorials. And I must say that it’s a lot harder than I thought. You need to keep track of the content, code correctness, and the pace of the articles so it’s readable and understandable. Coding while writing an article is challenging, but the experience has been very gratifying.

This year in WWDC, Apple introduced Objective-C ‘lightweight’ generics for XCode7. This builds upon the improvements to Objective-C to document the code and improve the interoperability with Swift. I wrote previously about nullability annotations and I continue to be delighted by these changes to the language. Here’s what I think.

As an iOS developer or Apple-centric developer, WWDC is a time of excitement and news. The yearly event at Apple offers many networking opportunities, but most importantly sets the stage for the next year of development in the company’s platform. As this year event is closing in, I wanted to write my thoughts on a related, and often overlooked topic; fragmentation