In this tutorial, we will learn how to create a project in Xcode with SwiftUI, basic understanding of Xcode application, boilerplate code file created in the project, and run the application on a simulator.
SwiftUI – Create Project in Xcode
Following is a step by step process to create a Project in Xcode with SwiftUI.
Step 1 – Open Xcode
Open Xcode from Dock.
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Welcome to Xcode window appears.
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Step 2 – Create a new Xcode project
Under welcome message, there are some options. Click on Create a new Xcode project.
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Step 3 – Choose Template
We have to choose a template for our project, based on the Device Type and Application Type.
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In this tutorial, we will create a project with App template for iOS device.
Click on iOS, then under iOS tab, click on App template. Then, click on Next.
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Step 4 – Set Project Options
Choose options for the project.
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Enter a name for this project for Product Name field, and choose SwiftUI for Interface, SwiftUI App for Life Cycle; and click on Next button.
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Step 5 – Choose Project Directory
Choose a directory for the project, and click on Create button.
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Our HelloWorld project opens with all the boilerplate code.
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We have successfully created an iOS application with SwiftUI Interface.
Xcode Project Window
Now, let us dig through the Xcode application, and some of the files in this project.
It has a Navigator, Editor (including Preview), and Options (for any of the selected item in the Navigator or Editor).
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By default, a device would be selected for the project to run on.
We may change the device on which our built project runs. Like, we may select a Simulator, or download a new Simulator and then select that, etc.
Click on the Device, as shown in the following screenshot, highlighted.
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A list of available devices, simulator, etc, appear. Choose one based on the requirement.
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Run
Now, run this application on the chosen device, by clicking on run button present at above Navigator.
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Our project starts running on the device.
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Project Files
Let us walkthrough some of the files that are created for this project.
HelloWorldApp.swift – [ProjectName]App.swift
This swift file has a struct with main attribute @main
. This is the entry point for our project, when it is run.
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ContentView.swift
This file, contains the View, which is displayed in the UI. This contains the “Hello, world!” text displayed in the UI.
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Assests.xcassets
This contains the list of assets for this project.
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info.plist
This file contains information about the properties of this project, like build version, supported orientations, required capabilities, etc.
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Conclusion
Concluding this SwiftUI Tutorial, we learned how to create an Xcode project with SwiftUI.