could you please help me with UIImagePickerController
I have 12 ImageViews in 1 ViewController. I need help so that each ImageView could pick different photos from Library. Someone told me to use Tags for them but I can't make it work cause i'm new in Swift.
Enable User Interaction Enabled for each UIImageView on a Storyboard.
Add TapGestureRecogniser to each UIImageView. Connect each TapGestureRecogniser with IBAction.
#IBAction func tap(_ sender: UITapGestureRecognizer) {
currentImageView = sender.view as! UIImageView
let picker = UIImagePickerController()
picker.delegate = self
self.present(picker, animated: true, completion: nil)
}
Define variable to store current UIImageView
private var currentImageView: UIImageView? = nil
Handle image selection and assign the image to currentImageView
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
let image = info[UIImagePickerController.InfoKey.originalImage]
currentImageView?.image = image as! UIImage
self.dismiss(animated: true, completion: nil)
}
It's not about the swift. You set up a "tag" number in the Interface builder (or in the code. There is a .tag property on the UIResponder descendants).
After that you make a switch in your callback method like
To make it a bit clearer:
let picker: UIImagePicker! = {
// setup your image picker here, don't forget to set the proper delegate
}()
var lastSender: AnyObject?
func onTouch(_ sender: AnyObject?) {
// add checks for the sender here
lastSender = sender
present(picker, animated: true, completion: *Your Completion*)
}
Delegate:
in
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any])
let image = *Get Image From Info*
lastSender?.image = image
Related
I'm trying to make users choose a photo from their library and crop this photo to specific dimensions like a circular , 80 x 60 sized photo.
#IBOutlet var imageView: UIImageView!
#IBAction func choosePhoto(_ sender: Any) {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
imagePickerController.sourceType = UIImagePickerControllerSourceType.photoLibrary
imagePickerController.allowsEditing = true
self.present(imagePickerController, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let choosenImage = info[UIImagePickerControllerOriginalImage] as! UIImage
imageView.image = choosenImage
dismiss(animated: true, completion: nil)
}
I pick photos using this code but edit screen is a rectangle so it is not what i'm looking for.Is it possible to change the edit screen's dimensions ?
iOS doesn't have any circular crop feature by default. You will need to integrate external library for implementing crop feature.
You can make use of these for circular cropping https://github.com/kekearif/KACircleCropViewController https://github.com/TimOliver/TOCropViewController
I have a UIImageView that has my "profile image" inside. When I tap on this, it calls a function that presents my UIImagePickerController. This works fine. My issue is that my delegate methods simple aren't being called. When I add breakpoints, it doesn't hit them at all. I have used the exact same method elsewhere in my project and it works fine so there's nothing wrong with my info.plist file. Does anybody know what I'm doing wrong? Thank you...
extension ChatLogController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
self.dismiss(animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
profileImageView.image = image
self.dismiss(animated: true, completion: nil)
}
#objc func handlePresentImagePicker() {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .photoLibrary
self.present(imagePicker, animated: true, completion: nil)
}
}
I realised that the issue was that I was using a custom transition (a transition that involved me being able to swipe right to dismiss my controller). Once I commented all of the code related to that, everything worked fine. Very unfortunate that I have to get rid of my transition but hey, it now works!
I'm trying to use a UIImagePickerController to show a image picked from the Photo Library, but when I select the image, nothing happens.
All I'm doing is from Apple's Swift tutorial, so the code shouldn't be wrong, I guess. It doesn't work neither in simulator nor on a real device. I've tried all suggestions I found while googling. My code:
import UIKit
class ViewController: UIViewController, UITextFieldDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
//MARK: Properties
#IBOutlet weak var nameTextField: UITextField!
#IBOutlet weak var mealNameLabel: UILabel!
#IBOutlet weak var photoImageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
nameTextField.delegate = self
}
//MARK: Actions
#IBAction func selectImageFromPhotoLibrary(sender: UITapGestureRecognizer) {
// Hide the keyboard.
nameTextField.resignFirstResponder()
// UIImagePickerController is a view controller that lets a user pick media from their photo library.
let imagePickerController = UIImagePickerController()
// Only allow photos to be picked, not taken.
imagePickerController.sourceType = .photoLibrary
// Make sure ViewController is notified when the user picks an image.
imagePickerController.delegate = self
present(imagePickerController, animated: true, completion: nil)
func imagePickerControllerDidCancel(picker: UIImagePickerController) {
// Dismiss the picker if the user canceled.
dismiss(animated: true, completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
// The info dictionary may contain multiple representations of the image. You want to use the original.
guard let selectedImage = info[UIImagePickerControllerOriginalImage] as? UIImage else {
fatalError("Expected a dictionary containing an image, but was provided the following: \(info)")
}
// Set photoImageView to display the selected image.
photoImageView.image = selectedImage
// Dismiss the picker.
dismiss(animated: true, completion: nil)
}
}
#IBAction func setDefaultLabelText(sender: UIButton) {
mealNameLabel.text = "Default Text"
}
//MARK: UITextFieldDelegate
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
func textFieldDidEndEditing(_ textField: UITextField) {
mealNameLabel.text = textField.text
}
}
I can provide more information if necessary. Thanks in advance.
Your delegate method is in the button action scope.
You have to write UIImagePickerControllerDelegate method out of the selectImageFromPhotoLibrary action scope and write with the proper signature.
Just like that:
#IBAction func selectImageFromPhotoLibrary(sender: UITapGestureRecognizer) {
// Hide the keyboard.
nameTextField.resignFirstResponder()
// UIImagePickerController is a view controller that lets a user pick media from their photo library.
let imagePickerController = UIImagePickerController()
// Only allow photos to be picked, not taken.
imagePickerController.sourceType = .photoLibrary
// Make sure ViewController is notified when the user picks an image.
imagePickerController.delegate = self
present(imagePickerController, animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
// Dismiss the picker if the user canceled.
dismiss(animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
// The info dictionary may contain multiple representations of the image. You want to use the original.
guard let selectedImage = info[UIImagePickerControllerOriginalImage] as? UIImage else {
fatalError("Expected a dictionary containing an image, but was provided the following: \(info)")
}
// Set photoImageView to display the selected image.
photoImageView.image = selectedImage
// Dismiss the picker.
dismiss(animated: true, completion: nil)
}
So right now I am trying to get the collection view Cells to use the photo library to update photos. Here is my code:
import UIKit
class viewCellVC: UICollectionViewCell, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
#IBOutlet var bookImage: UIImageView!
#IBAction func addImage(_ sender: Any) {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary
imagePicker.allowsEditing = false
self.window?.rootViewController?.present(imagePicker, animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
bookImage.image = image
picker.dismiss(animated: true, completion: nil)
}
}
However, when I attempt to run the code and update the pictures, the simulator fails to open the photo library and I instead get the following error message(doesn't end the app, just fails to run the photo library):
2017-08-07 21:35:31.709183-0500 ChuBookElf[2817:66569] Warning: Attempt to present <UIImagePickerController: 0x7f907e0bf800> on <ChuBookElf.ViewController: 0x7f907de072c0> whose view is not in the window hierarchy!
Can somebody tell my what I am doing wrong? I've been on this for hours now.
For Reference, here is what the collection view cell looks like
For starters, you are creating the imagePicker in a UICollectionViewCell.
You should create the imagePicker in the ViewController that contains the said UICollectionView along with the delegate methods. Then, in didFinishPickingMediaWithInfo, set the selected image to the appropriate collectionViewCell and reload your collectionView
Have such part of my storyboard:
So I want present from UserProfileController: UIViewController "Мой профиль", which is modal, (on the top on image) UIImageViewController.
My code:
extension UserProfileController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
#IBAction func imagePressed(_ sender: Any) {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
self.present(imagePickerController, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
guard let image = info[UIImagePickerControllerOriginalImage] as? UIImage else {
return
}
picker.dismiss(animated: true, completion: nil)
userProfileImageView.image = image
}
}
Well, imagePickerController presented, but after I choose image I have dismissed both controllers (imagePickerController and parent - UserProfileControler).
What am I doing wrong? Thanks
P.S. May be problem is I'm showing "SideMenuNavigationController" as modal? (so advised in SideMenu framework documentation)
Try to create you UIImagePickerController reference in your class (as a variable)
// to choose an image from the Camera Roll
fileprivate lazy var imagePicker: UIImagePickerController = {
let picker: UIImagePickerController = UIImagePickerController()
picker.allowsEditing = false
picker.sourceType = .savedPhotosAlbum
picker.delegate = self
return picker
}()