我尝试调用 popoverpresentation 视图控制器以在 ipad 上共享图像，但是当发生这种情况时，我收到错误“无法满足约束”。
事情是为了解决这个问题，我删除了所有约束，这样我就可以重新开始，但即使没有约束，我也会遇到同样的错误。
所以我的问题是。这是一个错误还是我必须为 popoverpresentation 视图控制器设置约束。
这是我的代码：
print("Current device is an iPad")
print("Current device is \(UIDevice.current)")
if let imageCheck = image {
let imageToShare = [imageCheck]
let activityVC = UIActivityViewController(activityItems: imageToShare, applicationActivities: nil)
activityVC.popoverPresentationController?.sourceView = super.view
self.present(activityVC, animated: true, completion: nil)
}
和控制台中的错误：
Current device is an iPad
Current device is <UIDevice: 0x280c8d260>
2019-12-26 20:31:22.662290+0100 Petfie[2184:756367] [LayoutConstraints] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't …