When presenting another ViewController, the transition source disappears.

[hanawat]

Hero is very useful. Thanks.

What did you do?

The problem I'm encountering occurs when I present another ViewControllerB on ViewControllerA. (Hero is enabled for both ViewControllers)

As soon as ViewControllerB is presented, ViewControllerA disappears with the reversed animation.

RootViewController
  └ ViewControllerA (disappear)
      └ ViewControllerB

What did you expect to happen?

I want ViewControllerA to be displayed as it is while ViewControllerB of OverCurrentContext is displayed.

When HeroModifiers is specified, it seems to automatically reverse animation when presenting another ViewController.

Can this be disabled only for present? (I don't want to disable it when appear or dismiss of ViewControllerA itself)

• Hero Version: 1.4.0

• iOS Version(s): 13.2

• Swift Version: 5.1

• Devices/Simulators: iPhone 11 Pro (Simulators)

Demo Project

The operation is as follows. https://gfycat.com/meanilliteratebinturong

[zishanj]

hero should be enabled only on target viewcontroller.

[hanawat]

@zishanj Thank you for answering!

I found that preventing heroModifiers by making them empty or nil. It was not possible with hero.isEnabled = false. The sample is below. https://github.com/hanawat/hero-playground/blob/master/HeroPlayground/ViewController.swift

GitHub

hanawat/hero-playground

https://github.com/HeroTransitions/Hero/issues/641 - hanawat/hero-playground

[hanawat]

I found one more thing. It was impossible if isEnabled was set to true for ViewController on Storyboard. Must be specified in code.

One more thing ... Don't clear the color of the parent view.

Maybe here https://github.com/HeroTransitions/Hero/blob/develop/Sources/Preprocessors/DefaultAnimationPreprocessor.swift#L361