MVVM (Model View ViewModel) is a popular structural design pattern. MVVM puts objects into three groups. Models: Model is used to hold app’s data. Model’s are usually simple structs or classes representing the basic data structure for apps. Models are UI independent. Views: View is the visual element of the…

Introduced in SwiftUI 4 with iOS 16, the new ImageRenderer API lets us take view snapshot as CGImage, NSImage or UIImage. We can use ImageRenderer to export bitmap image data from a SwiftUI view. We do this by initializing the renderer with a view, then render images on demand. We…

SwiftUI’s Alert View supports TextField input field now. It’s as easy as adding the TextField view inside the AlertView. We will explore this feature by building a simple ToDo list app. Let’s start with ToDo model. struct Todo: Identifiable { var id = UUID()…

Starting iOS 16 and SwiftUI 4.0, some SF Symbols support variable coloring. With this new addition, we can have different parts filled based on a fractional value between 0 and 1. Let’s take an example to understand this better. We will use mic sf symbol with new overloaded function which…

SwiftUI 4 added support to track tap location, it’s a CGPoint type which gives us the exact location of a tap. By default, provided location comes from local coordinate system of the view. Let’s create an example where we will create an orange circle which will animate to the tap…

Apple Chart’s API gives us access to configuration at the component level. In this article, we will explore options to configure Chart Axis and related components. Let’s explore with an example. We will start with a data structure. struct Workout: Identifiable, Hashable { var id = UUID()…

Apple’s Chart Framework is fully customizable as we will be exploring chartPlotStyle modifier, which helps us customize plot area of the chart. Let’s work with an example. Data structure: struct Workout: Identifiable, Hashable { var id = UUID() var day: String var minutes: Int } Sample data: extension Workout {…

Apple’s new Chart Framework(introduced in iOS 16) comes with many customization options. Today, we will explore customization for chart legend. Let’s get started. Data Structure: struct Workout: Identifiable, Hashable { var id = UUID() var day: String var minutes: Int } Sample Data: extension Workout { static…

Range bar charts are great to plot data points where we have min, max and average values. Range area chart is another way to visualize but today, we will use Apple Charts Framework & SwiftUI 4 to plot weather data on Range Bar Chart. Let’s start with the data structure…