Swift to Objective-C: Converting Create Voice Room View Controller Code

This code snippet shows the conversion of a Swift code block for creating and pushing a 'Voice Room View Controller' onto a navigation stack, to its equivalent Objective-C code. The Swift code utilizes dependency injection to create the view controller, while the Objective-C code utilizes a factory method. Both versions check the type of the view controller and then cast it to the specific 'TRTCCreateVoiceRoomViewController' class before pushing it onto the navigation stack. The code also demonstrates how to capture a screenshot of the view and assign it to the view controller's 'screenShot' property.

Swift Code:

let viewController = dependencyContainer.makeCreateVoiceRoomViewController()

if viewController is TRTCCreateVoiceRoomViewController {
    let vc = viewController as! TRTCCreateVoiceRoomViewController
    vc.screenShot = view.snapshotView(afterScreenUpdates: false)
}

navigationController?.pushViewController(viewController, animated: false)

Objective-C Code:

UIViewController *viewController = [dependencyContainer makeCreateVoiceRoomViewController];

if ([viewController isKindOfClass:[TRTCCreateVoiceRoomViewController class]]) {
    TRTCCreateVoiceRoomViewController *vc = (TRTCCreateVoiceRoomViewController *)viewController;
    vc.screenShot = [view snapshotViewAfterScreenUpdates:NO];
}

[self.navigationController pushViewController:viewController animated:NO];

This example highlights the key differences between Swift and Objective-C syntax, particularly in terms of type checking, casting, and method calls. It also demonstrates how to handle view controller creation and navigation in both languages.