在NavigationController和tabBarController下使用UIImagePickerController時出錯

Question

NavigationController和tabBarController下有3個UIViewControllers。

像這樣推送viewControllers：A-> B-> C

在viewController C中，添加以下代碼以允許用戶從照片庫中選擇圖像。

func btnClicked() {
    let imagePickerController = UIImagePickerController()
    imagePickerController.sourceType = .photoLibrary
    imagePickerController.delegate = self
    self.present(imagePickerController, animated: true, completion: nil)
}


func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage{
       topIamge.image = image
    }

    picker.dismiss(animated: false, completion: nil)

}

問題是，用戶選擇圖像或取消選擇之后，然后按向左箭頭按鈕回到B，將顯示錯誤消息，出現Unbalanced calls to begin/end appearance transitions for ，如果繼續返回A，則打印錯誤再次出來。

我做錯什么了嗎？

PS如果不顯示UIImagePickerController而按返回按鈕，則沒有錯誤。

謝謝。

Answer 1

我確定它與UIImagePickerController不相關檢查以下解決方案： https : //stackoverflow.com/a/12230777/6131436

https://stackoverflow.com/a/20925686/6131436