NavigationController和tabBarController下有3个UIViewControllers。
像这样推送viewControllers:A-> B-> C
在viewController C中,添加以下代码,以允许用户从照片库中选择图像。
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)
}
问题是用户选择图像或取消选择之后,然后按向左箭头按钮返回B,将显示错误
Unbalanced calls to begin/end appearance transitions for
,如果继续返回A,则将错误再次打印出来。我做错什么了吗?
附言如果我不显示UIImagePickerController的情况下按后退按钮,则没有错误。
谢谢。
最佳答案
我确定它与UIImagePickerController不相关
检查以下解决方案:
https://stackoverflow.com/a/12230777/6131436
https://stackoverflow.com/a/20925686/6131436
关于ios - 在NavigationController和tabBarController下使用UIImagePickerController时出错,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/45400866/