What are dependency injection approaches for Vision in Swift?

Dependency injection (DI) is a design pattern that enables the creation of dependent objects outside of a class and provides those objects to a class through various methods. In Swift, there are a few common approaches to implementing DI, especially when working with the Vision framework.

Types of Dependency Injection Approaches

  • Constructor Injection: Dependencies are provided through the initializer.
  • Property Injection: Dependencies are set through properties after the object is created.
  • Method Injection: Dependencies are passed into methods where they're needed.

Example: Constructor Injection

class VisionService { let vision: Vision init(vision: Vision) { self.vision = vision } func performVisionAnalysis(image: UIImage) { // Use the vision dependency to analyze the image } } class SomeViewController: UIViewController { let visionService: VisionService init(visionService: VisionService) { self.visionService = visionService super.init(nibName: nil, bundle: nil) } required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") } func analyzeImage(image: UIImage) { visionService.performVisionAnalysis(image: image) } }

dependency injection Swift Vision framework constructor injection property injection method injection

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