Assigning to 'id<UINavigationControllerDelegate,UIImagePickerControllerDelegate> _Nullable' from incompatible type 'InfchangeVC *const __strong'

Assigning to 'id<UINavigationControllerDelegate,UIImagePickerControllerDelegate> _Nullable' from incompatible type 'InfchangeVC *const __strong'

出现 Assigning to 'id<UINavigationControllerDelegate,UIImagePickerControllerDelegate>' from incompatible type 'ManageMessageViewController' 警告

当调用UIImagePickerController时，在进行委托定义是提示Assigning to 'id<UINavigationControllerDelegate,UIImagePickerControllerDelegate>' from incompatible type 'ManageMessageViewController'，可以在声明类所遵循的协议中加入UINavigationControllerDelegate即可解决

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原文地址：https://www.cnblogs.com/OIMM/p/7597929.html