Most mobile apps contain more than one screen, so navigation from one screen to another is necessary. A typical implementation is to have a list of items where tapping on a single item will navigate to a detailed page for that item. SwiftUI framework provides NavigationView and NavigationLink for this purpose.
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A list is used in SwiftUI to present rows of data in a single column. This was previously done using UITableView in UIKit. Use of the list container in SwiftUI simplifies the amount of code to create a simple list of items as well as allowing custom layout of the rows in the list.
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Circular rings are used frequently to show progress on a particular task or project. There has been a lot more awareness and discussion on closing activity rings since the introduction of the Apple watch. In this article we will create a circular progress indicator with the percentage complete displayed in the center.
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Buttons are used in SwiftUI to provide a mechanism for a user to initiate an interaction with an app. This article shows how to customise buttons in SwiftUI. SwiftUI provides a default style for buttons, but this can be modified in many ways and it can be helpful to provide a common style for buttons in your app.
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Animations can be used to give an App character and help bring the App to life. They can be used to explain how an app works, enhance navigation between screens or simply direct a user's attention. In this article we show how to animate the change of a shape from a triangle to a square or a circle.
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Images can be used in a variety of ways to create engaging and entertaining iOS Apps. Images can be used as backgrounds, icons, buttons and to improve content. This article shows how to add an image in Xcode and goes through some of the display modifiers to use to control the image display.
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SwiftUI uses a declarative approach to creating the User Interface. This means the code is written to state what the user interface should look like. Stacks provide a mechanism to define the layout arrangement of multiple views in a SwiftUI app.
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Text is displayed in SwiftUI using the Text view. A Text view is displayed by default when a new iOS app is created and is set to contain the words "Hello world!"
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The Fibonacci sequence is a series of numbers where each number in the sequence is the sum of the preceding two numbers, starting with 0 and 1. It is natural to consider a recursive function to calculate a subset of the Fibonacci sequence, but this may not be the most efficient mechanism.
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It can be very useful to check the execution time of a group of swift statements or swift function when evaluating the most efficient way to perform a task. In this article three different mechanisms are used to measure the execution time to sum up 1000 random numbers.
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