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Inheritance also means that all the fantastic behavior of the default templates is up for grabs. Each template also offers inheritance, meaning the templates you create can adopt logic from one another or the default templates. Xcode’s rich and complex templating system also allows user input, conditional logic and many combinations of files. Setup code for your Core Data implementation.A blank view with a “Hello, World!” text.The default templates include many different options including, but not limited to: Templates decide what your new project will contain. These default templates make things easier than starting with a blank project.

Understanding Default TemplatesĮvery time you’ve created a new Xcode project in the past, you did so using Xcode’s default templates. Since Xcode’s templating system is robust but poorly documented, you’ll need to explore the default templates Xcode offers so you can know what you can customize. Using that template will make your life easier when creating your projects. But instead of using the default template, you’ll create your own template that pairs ContentView with a view model to separate the UI and business logic. Usually, a new SwiftUI app comes with a ContentView.swift for you to use for the first screen of your app. You want to use it in all your apps, and this app is no different. Imagine for a moment that you are a big fan of the Model-View-ViewModel (MVVM) design pattern. That’s because you’ll be creating the project by yourself, using custom Xcode project templates! Note: The starter materials don’t contain a starter Xcode project.

Along the way you’ll how to create your own templates. In this tutorial, you’ll build an app called Stellar Space which uses NASA’s Astronomy Picture of the Day API to show today’s latest space-related and wallpaper-worthy photo.

Get ready because you’re about to replace some unnecessary boilerplate with custom Xcode templates! Getting Startedįirst, click the Download Materials button at the top or bottom of this tutorial to download the project materials.

Getting input from users when they use a template.

What Xcode templates are and where to find the default templates that ship with Xcode.

These templates allow you to pre-fill the contents of new files and project so that you can get to work on the core of your next excellent app idea more quickly. Using Xcode’s project and file templates, you have the power to customize how new projects and files start out their life from the moment you use File ▸ New. If you’re tired of filling out boilerplate code whenever you begin a new Xcode project, you can save yourself a ton of time by creating customized project templates.