One of the core elements of clean code is having code that is consistent with identifiers. Head to the AppDelegate. Take a look at this code from the tip from last week.
I have a few problems with it. I’m not being very consistent in some of those identifiers such as the HueColorTVC and ColorTableViewController. However, these identifiers are all over my code. There’s a great way to get consistency using refactoring.
Select the HueColorTVC, then right click.
Click refactor… and then rename.
Xcode shows you all occurrences of this identifier, which in this case is only in the app delegate.
Change to hueColorTableViewController. All the occurrences change at once.
Select and then right-click the ColorTableViewController, and once again hit refactor.
Both cases of the class identifier, when it is instantiated in teh App delegate and the definition in HueColorTVC.swift are highlighted. Change to HueColorTableViewController.
Let’s do this one more time. I’m going to change the navigationVC
Now I’d like my file name to match too. One way to change it is in attributes. Select HueColorTVC.swift.
Open the attributes panel. Change the name to HueColorTableViewController.swift.
and the file name changes.
One caution about all this renaming. Comments don’t refactor easily. You’ll see that at the top of the code. Select and refactor that. You can’t. Once you refactor, you might want to also search to find anything you didn’t get in your refactoring. You can replace all these cases by selecting replace, and adding the replacement in the text box.
Refactoring is a very useful and simple tool to get your code a lot more consistent in identifiers.
If you are making your own stuff, doing your own work and trying to sell it in the market, most advice isn't enough. You want it to work. You want to sell your works to those who most are touched by them. This newsletter is for you. I am one of those people like you, creative, independent and maybe a little bit crazy to the outside world. I'll talk about writing good apps for Apple platforms, the tools and API's to get there. Along the way I will show you how to become you best creative self. I will show you how to build and create, and make some money at it too.
Get exclusive content, new post notifications, tips and more in A Slice of App Pie.
In Practical Auto Layout for Xcode 8, using simple, practical, easy to follow examples, you will learn how to master auto layout, size classes and stack views on the Xcode 8 storyboard. Using easy to follow examples, you will learn how to make universal apps quickly easily and in far less time than ever before.
Swift Swift: View Controllers
You will learn to use auto layout, size classes and new Swift implementations of view controllers. With plenty of color illustrations and code snippets, Swift Swift View Controllers will take you step by step through many easy demonstrations, teaching you the stuff you really need to know to implement any of these view controllers.