強参照 [Swift]NavigatonControllerで戻る押したら「Attempted to read an unowned reference but the object was already deallocated」SwiftRxSwiftnavigationController強参照弱参照navigationController
[Swift]NavigatonControllerで戻る押したら「Attempted to read an unowned reference but the object was already deallocated」SwiftRxSwiftnavigationController強参照弱参照navigationController
