You need to implement all the required methods of UIPickerViewDataSource and UIPickerViewDelegate, if you want to conform to these protocols. Swift is more like java when it comes to protocols because if you don’t implement all the required methods declared by a protocol you are going to get a compile time error instead of a … Read more
Add import UniformTypeIdentifiers to your swift file to get access to UTType See the documentation for more usages. And the WWDC2020 video “Build document-based apps in SwiftUI” for a practical demo.
This is because you are opening a camera on the simulator(or on a device not having camera)… since the code is something like [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] and obviously, the simulator doesn’t have a camera… Proceed giving an alert like this, if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:@”Error” message:@”Device has no camera.” delegate:nil cancelButtonTitle:@”OK” … Read more