custom interactive transition animation

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I want to implement an interactive transition between two view controllers. I would like it to be a modal or present transition.

• I want the app to start out on the first view controller and allow the user to swipe down to bring in the second view controller
• The second view controller should come in and cover the current (first view controller) rather than move it out of the way

I understand that I would need to use the following.

transitioningDelegate

animationController(forPresented:presenting:Source:)

interactionControllerForPresentation(Using:)

UIPercentDrivenInteractiveTransition

I am having trouble figuring out how to implement all this. I can't seem to find anything useful or any working examples in swift 3. For now I created a simple single view application with two view controllers VC1 (blue background) and VC2 (yellow background) to easily test out any possible solutions.

asked 22 secs ago

Salim

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custom interactive transition animation