Close Menu

swiftuiintrospect




Introduction

SwiftUIIntrospect is a powerful library that allows developers to easily introspect and customize SwiftUI views. With this library, you can access the underlying UIKit/AppKit view properties and methods, giving you fine-grained control and flexibility in your SwiftUI app development.



Features

  • Access and manipulate underlying UIKit/AppKit view properties
  • Modify or extend view behavior through introspection
  • Customize view interactions and appearance by tapping into the underlying view hierarchy
  • Make your SwiftUI app even more powerful by leveraging UIKit/AppKit functionalities



Getting Started

Installation

To get started with SwiftUIIntrospect, follow these simple steps:

  1. Open your project in Xcode
  2. Navigate to your project’s directory
  3. Open the Package.swift file
  4. Inside the dependencies block, add the following line: 
        
    .package(url: "https://github.com/siteline/SwiftUIIntrospect.git", from: "0.1.0")
  5. In your target’s dependencies, add SwiftUIIntrospect:
    6.     
    .product(name: "SwiftUIIntrospect", package: "SwiftUIIntrospect")
  6. Save the changes and return to Xcode
  7. Build your project to fetch the dependency

Integration

Once you have installed the SwiftUIIntrospect library in your project, follow the steps below to integrate it into your SwiftUI views:

  1. Import the SwiftUIIntrospect module in your SwiftUI view file: 
        
    import SwiftUIIntrospect
  2. Use the provided introspect modifier on any SwiftUI view, as shown in the example below: 
        
    VStack {
      Text("Hello, SwiftUI!")
    }
    .introspectViewController { viewController in
      // Access the underlying UIKit/AppKit view controller
      // Perform customizations or access its properties/methods
      // viewController is the instance of the underlying view controller
    }
  3. Build and run your SwiftUI app to see the changes



Examples

Example 1: Modifying UIButton properties

In this example, we demonstrate how SwiftUIIntrospect allows you to modify properties of a UIButton. 


Button(action: {
  // Perform an action
}) {
  Text("Click me!")
}
.introspectButton { button in
  // Modify the button properties
  button.setTitleColor(.red, for: .normal)
}

Example 2: Accessing UITextField properties

SwiftUIIntrospect enables easy access to properties of a UITextField, allowing changes to its behavior or appearance. 


TextField("Enter text", text: $text)
.introspectTextField { textField in
  // Access the underlying UITextField
  textField.textColor = .blue
}

Example 3: Customizing UITableView appearance

In this example, we showcase how SwiftUIIntrospect allows customization of a UITableView. 


List {
  Text("Option 1")
  Text("Option 2")
  Text("Option 3")
}
.introspectTableView { tableView in
  // Customize the UITableView properties
  tableView.separatorStyle = .none
  tableView.backgroundColor = .systemGray6
}



Conclusion

SwiftUIIntrospect empowers SwiftUI developers with the ability to dig deeper into the underlying view hierarchy and enhance their app’s functionality with UIKit/AppKit features. By leveraging SwiftUIIntrospect, you can unleash new possibilities and create truly dynamic SwiftUI apps. Dive into the powerful world of SwiftUIIntrospect and take your app development to the next level!