我正试图在我的VenueListVC和VenueDetailsVC之间左右移动。但是当我使用带有指定类的'Application tried to present modally an active controller <VenueDetailsVC: 0x104098980>.' segue回到原始VC时，我收到以下错误： SegueFromLeft 。
我有以下课程; SegueFromRight从右侧转换目标VC并为其设置动画，并在其正下方SegueFromLeft类，旨在实现类似的功能，而不是通过添加＆＃39; - ＆＃39;来自左侧的translationX: -src.view.frame.size.width类。减去class SegueFromRight: UIStoryboardSegue {
override func perform() {
let src = self.source
let dst = self.destination
src.view.superview?.insertSubview(dst.view, aboveSubview: src.view)
dst.view.transform = CGAffineTransform(translationX: src.view.frame.size.width, y: 0)
UIView.animate(withDuration: 0.25,
delay: 0.0,
options: .curveEaseInOut,
animations: {
dst.view.transform = CGAffineTransform(translationX: 0, y: 0)
},
completion: { finished in
src.present(dst, animated: false, completion: nil)
}
)
}
。
class SegueFromLeft: UIStoryboardSegue {
override func perform() {
let src = self.source
let dst = self.destination
src.view.superview?.insertSubview(dst.view, aboveSubview: src.view)
dst.view.transform = CGAffineTransform(translationX: -src.view.frame.size.width, y: 0)
UIView.animate(withDuration: 0.25,
delay: 0.0,
options: .curveEaseInOut,
animations: {
dst.view.transform = CGAffineTransform(translationX: 0, y: 0)
},
completion: { finished in
src.present(dst, animated: false, completion: nil)
}
)
}
}
prepareForUnwind}
我的VenueListVC（来源VC）中有以下@IBAction func prepareForUnwind (segue: UIStoryboardSegue){
}
IBAction
VenueDetailsVC我使用prepareForUnwind（目标VC）中的退出点链接到VenueListVC（来源VC）的SegueFromLeft IBaction。
我已将{{1}}类添加到segue。
producer configuration setting
Segue right完美无缺，当我向后推进时，它会抛出上面的错误，但不会在呈现源VC之前抛出错误。