There are times when data in a bar chart has similar values for a number of the bars and it can be difficult to see the differences. One option is to zoom in on the top section of the bar chart. This article investigates a number of options and identifies the best approach for this in Swift Charts.
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I came across the Matthew effect recently, which struck me as very unfair so I wondered if I could reproduce the results demonstrated. This article outlines the Swift code for an app to test the redistribution of coins in a closed population based on random coin tosses between agents in the population.
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A Slider control is a UI control that allows the user to select a value from within a range of values. In SwiftUI, it is usually presented as a thumb selector on a linear line. There are times when it might be better to present this type of selector as a circle with the thumb moving around the circumference. This …
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At WWWDC 2022, Apple introduced SwiftUI Charts, which makes it easy to create various charts within SwiftUI views. This article demonstrates how to quickly create a bar chart and customise the chart containing multiple sets of data.
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SwiftUI Charts introduced in iOS 16, can present data in an intuitive visual format and can be created quickly using SwiftUI Charts. This article demonstrates a couple of ways to customise a line chart and combine with an area chart to present data.
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Apple introduced SwiftUI Charts at WWWDC 2022, which makes it incredibly easy to create charts within SwiftUI views. Charts are a great way of presenting visual data in a rich format that is easy to understand. This article shows how to easily create a line chart with so much less code than was previously used to …
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SwiftUI does not have a control to present an open/save dialog to the user to allow saving files to the macOS filesystem. One could build such a view from scratch, but it is easier to use NSSavePanel from AppKit. This article demonstrates how to use NSSavePanel to get the URL for the file to be saved and use …
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Dependency Injection is a technique to pass in one or more dependent object to another object. This article will build on the Weather App to pass in the weather service to the weather ViewModel at initialisation. This will allow the use of a mock weather service to test the ViewModel in unit tests without requiring any …
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Code style can be a controversial topic and lead to some passionate debates between developers. The use of a tool to enforce a set of rules on style can be very helpful to avoid contentious arguments and ensure the code is consistent throughout a project. SwiftLint can easily be incorporated into Xcode projects to flag …
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Last week, we retrieved weather data from Open Weather API to demonstrate how to parse JSON data. The weather data is retrieved asynchronously, which may result in a delay before the UI is updated. This article shows how to display a progress view while the data is being fetched, to provide feedback that something is …
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