ios - UIViewController Interactive Transition error when cancelled -

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i have custom transition between 1 uiviewcontroller (vc1) , modal uiviewcontroller (vc2). interactively hide vc2 uipangesturerecognizer.

when pan gesture finishes , translation in y axis equal or more 100pt, finish transition finishinteractivetransition(). otherwise cancel transition cancelinteractivetransition().

vc1

enter image description here

vc2

enter image description here

transition between vc1 , vc2

enter image description here

when transition cancelled because pan gesture translation less 100pt, expected behaviour revert custom transition animation , show vc2 again instead of this, vc1 shown.

you can download project github.


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