Glance

Glance is lightweight library that allows you debug view hierarchy right from you mobile device or simulator

Installation

Swift Package Manager

dependencies: [
    .package(url: "https://github.com/nikitabelopotapov/Glance.git", .upToNextMajor(from: "0.0.1"))
]

Usage

Suggested use-case is to attach Glance to shake gesture in UIWindow extension

import Glance

extension UIWindow {
    open override func motionEnded(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {
        super.motionEnded(motion, with: event)
        if motion == .motionShake {
            Glance.main.debug(view: self)
        }
    }
}

Custom views

In order you have any custom or not supported view (such as view that drows in content in CGContext), you can provide custom.

final class CustomLayoutProvider: LayoutProvidable {
    var layoutMapper: LayoutMappable?
    
    func provide(for view: UIView, depth: inout Float, masterView: UIView?) -> [LayoutSnapshot] {
        return [LayoutSnapshot(image: UIImage(), depth: 1, frame: .zero, view: view)]
    }
}

And then add it to Glance layout providers

@main
class AppDelegate: UIResponder, UIApplicationDelegate {

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        Glance.main.addLayoutProvider(provider: CustomLayoutProvider(), viewClass: MyCustomClass.Type)
        return true
    }
}

View properties (Beta)

By tapping any view in Glance main screen you can inspect view properties. Now this feature is not fully implemented.