Whats up,
So this is my code to pick an image from the photo library, now I want to go send the user to the next view controller but only after the user picks an image. my question is:
How do I make it go to the next view controller but only after an image has been selected from the photo library?
By either making it so the finish button only shows up after the user has selected an image or by just showing error if they try to click finished until an image has been selected from the library
Thank you!!!!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let imageTap = UITapGestureRecognizer(target: self, action: #selector(openImagePicker))
ProfilePictureImageView.isUserInteractionEnabled = true
ProfilePictureImageView.addGestureRecognizer(imageTap)
ProfilePictureImageView.layer.cornerRadius = ProfilePictureImageView.bounds.height / 2
ProfilePictureImageView.clipsToBounds = true
TapToChangeButton.addTarget(self, action: #selector(openImagePicker), for: .touchUpInside)
//when user clicks they can choose a photo from library
//instantiate image picker
ImagePicker = UIImagePickerController()
ImagePicker.allowsEditing = true
ImagePicker.sourceType = .photoLibrary
ImagePicker.delegate = self
setUpElements()
}
func setUpElements() {
ErrorLabel.alpha = 0
}
// taping to change and add a photo
@objc func openImagePicker(_ sender:Any) {
// Open Image Picker
self.present(ImagePicker, animated: true, completion: nil)
}
@IBAction func FinishTapped(_ sender: Any) {
}
}
//extend the proper delagate method
extension BackroundCheckViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
//cancel
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
//pick an image
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
//get the image the selected
if let pickedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage {
self.ProfilePictureImageView.image = pickedImage
//upload to firbase
PhotoService.savePhoto(image: pickedImage)
}
picker.dismiss(animated: true, completion: nil)
}
}
Add the code to navigate to another view controller in the completion block of the picker dismissal in the didFinishPickingMediaWithInfo method of UIImagePickerControllerDelegate.
extension BackroundCheckViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
//pick an image
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
//...
picker.dismiss(animated: true) {
// add you code here to navigate to somewhere else.
let myViewController = MyViewController()
if let navigationController = self.navigationController {
navigationController.pushViewController(myViewController, animated: true)
} else {
self.present(myViewController, animated: true)
}
}
}
}