Installing our tools
At this point, we have covered what each of the tools in our tool chain is responsible for doing. So with that out of the way, let's begin installing each of them.
Installing Xcode
The first thing you'll need to do is ensure you have version 7 or later of Xcode installed. However, I recommend you install Xcode 8 as that's what we'll be using throughout this book. If you already have Xcode installed, verify the version by launching the program and then clicking on Xcode | About Xcode. You should see an image similar to the following screenshot:
If you don't have Xcode installed, you'll need to download it from the Apple App Store. To do this, launch the App Store application and search for Xcode using the search bar in the top right corner of the window. Once you find it, click on the Get button and then Install App. You may need to enter your Apple credentials before downloading. The Xcode installer is pretty large, so while we wait on that, you can start downloading the...
