I discovered a bug in the game I had written on Tic Tac Toe. When the board is in a certain state, the system did not take the obvious winning move. It still won the game, but with an extra move required. This article details how to write a failing unit test to reproduce the issue and how to update the minimax …

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A tab bar is presented at the bottom of the screen in iOS apps and is used for navigation between the major sections of an app. TabView is used in SwiftUI to easily add multiple tabs to the main view.

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It is said that use of Canvas to create complex shapes can provide better performance in SwiftUI. This article compares performance of scrolling through multiple instances of the same card pattern created using shape, canvas or image.

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I discovered, when playing around with the rounded-corner star shape, that the same basic shape could be used to create a cog shape. This article demonstrates the creation of the cog shape and the use of timelineview to animate its rotation in SwiftUI.

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TimelineView was introduced in iOS 15 to control how to change a view over time. This can be used to animate the background on a Canvas in a SwiftUI.

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TimelineView, introduced in iOS 15, can be used to change objects on a canvas over time. The article takes the star shape defined previously and animates rotating the star shape on the canvas in a SwiftUI view.

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