iosのnavigation controllerを使ってる際にswipe backでnavigationが乱れる uinavigationcontroller →→push swipe back ![]( ![]( < switch hiderarchy ![](

`UINavigationController`
swipe back
`UINavigationController`








`viewWillAppear``viewDidLayout`




swipe back`viewWillAppear`
`viewWillDisAppear`