I am using UIImagePickerController with this code
func openCamera()
{
if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera))
{
picker.allowsEditing = false
picker.sourceType = UIImagePickerControllerSourceType.Camera
picker.cameraCaptureMode = .Photo
picker.modalPresentationStyle = .FullScreen
presentViewController(picker,
animated: true,
completion: nil)
}
else
{
openGallary()
}
}
func openGallary()
{
let menuViewController = UIImagePickerController()
menuViewController.modalPresentationStyle = .Popover
menuViewController.preferredContentSize = CGSizeMake(320, 320 )
//menuViewController.tableView = FrontTable
let popoverMenuViewController = menuViewController.popoverPresentationController
popoverMenuViewController?.permittedArrowDirections = .Any
popoverMenuViewController?.delegate = self
popoverMenuViewController?.sourceView = flagBtn
popoverMenuViewController?.sourceRect = CGRect(
x: 15,
y: 25,
width: 1,
height: 1)
presentViewController(
menuViewController,
animated: true,
completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject])
{
picker .dismissViewControllerAnimated(true, completion: nil)
let image=info[UIImagePickerControllerOriginalImage] as? UIImage
flagBtn.setImage(image, forState: .Normal)
flagBtn.setImage(image, forState: .Highlighted)
flagBtn.setImage(image, forState: .Selected)
}
With camera delegate is working fine but with gallery delegate is not working. For camera I have define the "picker" variable in the class and define it's delegate self in "Viewdidload". I have also tried to use picker variable in openGallary function but it is also not working.
I think these 2 lines might help:
menuViewController.delegate = self
menuViewController.sourceType = .PhotoLibrary
Make sure you have added UINavigationControllerDelegate and UIImagePickerControllerDelegate to your ViewController.
Related
#objc func presentPicker(){
let picker = UIImagePickerController()
picker.sourceType = .photoLibrary
picker.allowsEditing = true
picker.delegate = self //error
self.present(picker, animated: true, completion: nil)
}
extension SignInViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerController(\_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: \[UIImagePickerController.InfoKey : Any\]) {
if let imageSelected = info\[UIImagePickerController.InfoKey.editedImage\] as? UIImage {
avatar.image = imageSelected}
if let imageOriginal = info[UIImagePickerController.InfoKey.originalImage] as?
UIImage {
avatar.image = imageOriginal
}
picker.dismiss(animated: true, completion: nil)
}
}
I think(!) I have copied the tutorial code correctly but get two errors in my ImagePicker struct
//Error: Cannot assign value of type 'SignUpViewController' to type '(UIImagePickerControllerDelegate & UINavigationControllerDelegate)?'
I'm using Xcode 13.
At line
picker.delegate = self
You have assigned SignUpViewController object to picker delegate and you have inherited UIImagePickerControllerDelegate into SignInViewController class instead of SignUpViewController
replace extension SignInViewController: with extension SignUpViewController:
My situation is that I have a working imagepickercontroller that allows the user to pick an image from their camera roll and display it on an imageview inside the application.
The problem is that I also want to be able to do the same thing with videos, and instead, display the video on an avplayer. I've done some research but couldn't find any good sources.
Can someone show me how to do this? possibly by editing the code below?
Thanks in advance!
This is the code I used for importing and displaying images from cameraroll (all above the viewDidLoad()):
#IBOutlet weak var imageView: UIImageView!
// the image picker controller
var imagePicker = UIImagePickerController()
// this is the button you tap to import your photo
#IBAction func imageViewButtonTapped(_ sender: Any) {
if UIImagePickerController.isSourceTypeAvailable(.savedPhotosAlbum) {
imagePicker.delegate = self
imagePicker.allowsEditing = true
present(imagePicker, animated: true, completion: nil)
}
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
var selectedImageFromPicker: UIImage?
if let editedImage = info[.editedImage] as? UIImage{
selectedImageFromPicker = editedImage
}else if let originalImage = info[.originalImage] as? UIImage{
selectedImageFromPicker = originalImage
}
if let selectedImage = selectedImageFromPicker {
imageView.image = selectedImage
}
dismiss(animated: true, completion: nil)
}
try this:
import AVFoundation
class VideoHelper {
static func startMediaBrowser(delegate: UIViewController & UINavigationControllerDelegate & UIImagePickerControllerDelegate, sourceType: UIImagePickerController.SourceType) {
guard UIImagePickerController.isSourceTypeAvailable(sourceType) else { return }
let mediaUI = UIImagePickerController()
mediaUI.sourceType = sourceType
mediaUI.mediaTypes = [kUTTypeMovie as String]
mediaUI.allowsEditing = true
mediaUI.delegate = delegate
delegate.present(mediaUI, animated: true, completion: nil)
}
}
and you can use this as:
let source = UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.camera) ? UIImagePickerController.SourceType.camera : UIImagePickerController.SourceType.savedPhotosAlbum
VideoHelper.startMediaBrowser(delegate: self, sourceType: source)
I have UIImagePickerController with cameraOverlyView. I added tap gesture recognizer to the overlay view - when user taps on the view the recording should be stopped and saved:
let mediaUI = UIImagePickerController()
mediaUI.sourceType = sourceType
mediaUI.mediaTypes = [kUTTypeMovie as String]
mediaUI.allowsEditing = true
mediaUI.delegate = self
//customView stuff
let customViewController = CustomOverlayViewController(
nibName:"CustomOverlayViewController",
bundle: nil
)
let customView:CustomOverlayView = customViewController.view as! CustomOverlayView
customView.frame = delegate.view.frame //self.picker.view.frame
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(cameraViewTapped(tapGestureRecognizer:)))
customView.cameraView.addGestureRecognizer(tapGestureRecognizer)
customView.delegate = delegate
delegate.present(mediaUI, animated: true, completion: {
mediaUI.cameraOverlayView = customView
})
gesture recognizer calls this:
#objc func cameraViewTapped(tapGestureRecognizer: UITapGestureRecognizer)
{
if isRecording {
self.picker!.stopVideoCapture()
self.recordButton.isEnabled = false
print("stopped")
isRecording = false
} else {
self.picker!.startVideoCapture()
print("started")
isRecording = true
}
}
delegate method:
extension HomeViewController: UIImagePickerControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : Any]) {
print("didFinishPickingMediaWithInfo")
dismiss(animated: true, completion: nil)
guard
let mediaType = info[UIImagePickerControllerMediaType] as? String,
mediaType == (kUTTypeMovie as String),
let url = info[UIImagePickerControllerMediaURL] as? URL,
UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(url.path)
else {
return
}
// Handle a movie capture
UISaveVideoAtPathToSavedPhotosAlbum(
url.path,
self,
#selector(video(_:didFinishSavingWithError:contextInfo:)),
nil)
}
}
My question is how to get recording from the picker controller? Delegate method didFinishPickingMediaWithInfo is not called because of the overlay view: UIImagePickerController didFinishPickingMediaWithInfo not being called when cameraOverlyView property is assigned
Solved the issue by adding the following line of code:
mediaUI.showsCameraControls = false
In my application the user can either open the camera roll to select a picture or open the camera to take directly one by himself.
In both cases, the picture selected/taken will also be saved locally for further reference.
The downside is that the saving operation usually freeze the screen until it is finished.
I found an animation in this post and I want to display it in front of the imagePickerController but I can't manage to do so.
class SinglePageViewController: UIViewController, UINavigationControllerDelegate, UIImagePickerControllerDelegate, UITextFieldDelegate, UINavigationBarDelegate {
var spinner: UIActivityIndicatorView?
lazy var showCameraImagePickerController: UIImagePickerController = {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .camera
imagePicker.allowsEditing = false
return imagePicker
}()
lazy var showPhotoImagePickerController: UIImagePickerController = {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .photoLibrary
imagePicker.allowsEditing = false
return imagePicker
}()
#IBOutlet weak var photoButton: UIButton!
#IBAction func onPhotoButton(_ sender: Any) {
self.present(self.showCameraImagePickerController, animated: true, completion: nil)
}
#IBOutlet weak var galleryButton: UIButton!
#IBAction func onGalleryButton(_ sender: Any) {
self.present(self.showPhotoImagePickerController, animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any]) {
//start animation
let screenSize: CGRect = UIScreen.main.bounds
spinner = UIActivityIndicatorView(frame: CGRect(x: screenSize.width / 2 - 150, y: screenSize.height / 2 - 150, width: 300, height: 300))
spinner?.isHidden = false
spinner?.startAnimating()
spinner?.color = UIColor.red
switch picker {
case showCameraImagePickerController:
// snap pic, save to doc, save to album
self.showCameraImagePickerController.view.addSubview(spinner!)
timer = Timer.scheduledTimer(withTimeInterval: 0.1, repeats: false, block: { _ in
let image = info[UIImagePickerControllerOriginalImage] as? UIImage
if self.saveImage(imageName: "\(self.titleLabel.text!).png", image: image) {
// additionally save to photo album
UIImageWriteToSavedPhotosAlbum(image!, self, #selector(self.image(_:didFinishSavingWithError:contextInfo:)), nil)
print("saved \(self.titleLabel.text!).png")
self.imageView.image = image
}
})
case showPhotoImagePickerController:
//switch pic, save to doc. no album
self.showPhotoImagePickerController.view.addSubview(spinner!)
timer = Timer.scheduledTimer(withTimeInterval: 0.1, repeats: false, block: { _ in
let image = info[UIImagePickerControllerOriginalImage] as? UIImage
if self.saveImage(imageName: "\(self.titleLabel.text!).png", image: image) {
print("saved new \(self.titleLabel.text!).png")
self.imageView.image = image
self.spinner?.stopAnimating()
self.spinner?.removeFromSuperview()
self.spinner = nil
self.showPhotoImagePickerController.dismiss(animated: true, completion: nil)
} else {
self.spinner?.stopAnimating()
self.spinner?.removeFromSuperview()
self.spinner = nil
self.showPhotoImagePickerController.dismiss(animated: true, completion: nil)
}
})
default:
return
}
}
#objc func image(_ image: UIImage, didFinishSavingWithError error: NSError?, contextInfo: UnsafeRawPointer) {
spinner?.stopAnimating()
spinner?.removeFromSuperview()
spinner = nil
self.showCameraImagePickerController.dismiss(animated: true, completion: nil)
}
func saveImage(imageName: String, image: UIImage?) -> Bool {
//create an instance of the FileManager
let fileManager = FileManager.default
//get the image path
let imagePath = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString).appendingPathComponent(imgDir + imageName)
print(imagePath)
//get the image we took with camera
let image = rotateImage(image: image!)
//get the PNG data for this image
let data = UIImagePNGRepresentation(image)
//store it in the document directory
if fileManager.createFile(atPath: imagePath as String, contents: data, attributes: nil) {
newItem?.image = true
return true
} else {
print("error while saving")
return false
}
}
}
as you can see I tried playing with bringSubView(toFront:) and also with the zPosition but with no results.
following this similar question I looked into the documentation for cameraOverlayView but it says that it only works when the imagePicker is presented in camera mode, which doesn't cover the case when I open the photo library
I also recently tried to use a workaround, meaning that I dismiss the imagePickerController as soon as possible and update the image afterwards, but that is not optimal anymore because of some changes in the structure of app.
EDIT
to make myself clearer I'll state again what I need: show the spinner animation in front of the imagePicker, as soon as I tap a photo to choose it, and until I finish saving, then dismiss the imagePicker.
I do not want to first dismiss the picker and then save while showing the spinner in the main view.
EDIT2
updated the code with the new one from the answer. only problem is that if I don't put a timer the spinner shows itself only at the end of the saving process for a brief moment (checked with breakpoints).
This results in no animation during the couple of seconds of saving process and just a brief apparition of the spinner at the end before dismissing the imagePicker.
Just putting a 0.1sec delay triggers the spinner immediately and I get the expected behaviour (animation while saving).
No idea why
Please see a complete example where spinner will show while the image is being saved and once finishes saving spinner will be removed.
class ViewController: UIViewController {
/// Image picker controller
lazy var imagePickerController: UIImagePickerController = {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .photoLibrary;
imagePicker.allowsEditing = false
return imagePicker
}()
var spinner: UIActivityIndicatorView?
#IBAction func imagePickerButton(_ sender: UIButton) {
self.present(self.imagePickerController, animated: true, completion: nil)
}
}
// MARK: ImagePicker Delegate to get the image picked by the user
extension ViewController: UINavigationControllerDelegate, UIImagePickerControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
//start animation
let screenSize: CGRect = UIScreen.main.bounds
spinner = UIActivityIndicatorView(frame: CGRect(x: screenSize.width/2 - 50, y: screenSize.height/2 - 50, width: 100, height: 100))
spinner?.isHidden = false
spinner?.startAnimating()
spinner?.color = UIColor.black
self.imagePickerController.view.addSubview(spinner!)
let image = info[UIImagePickerControllerOriginalImage] as? UIImage
UIImageWriteToSavedPhotosAlbum(image!, self, #selector(image(_:didFinishSavingWithError:contextInfo:)), nil)
}
#objc func image(_ image: UIImage, didFinishSavingWithError error: NSError?, contextInfo: UnsafeRawPointer) {
spinner?.stopAnimating()
spinner?.removeFromSuperview()
spinner = nil
self.imagePickerController.dismiss(animated: true, completion: nil)
if error == nil {
let ac = UIAlertController(title: "Saved!", message: "Your altered image has been saved to your photos.", preferredStyle: .alert)
ac.addAction(UIAlertAction(title: "OK", style: .default))
present(ac, animated: true)
}
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
}
In the first ViewController (AViewController), I set the camera. When the picture is captured, I present an other ViewController (BViewController) which contains a UIImageView. The problem is the UIImageView in BViewController doesn’t show the picture captured in AViewController. I specify that I don’t use storyboard.
Does anyone have an idea to fix this fail ? Did I miss something ? Thanks for you help!
class AViewController: UIViewController {
...
func capture(){
if let videoConnection = stillImageOutput!.connection(withMediaType: AVMediaTypeVideo) {
videoConnection.videoOrientation = AVCaptureVideoOrientation.portrait
stillImageOutput?.captureStillImageAsynchronously(from: videoConnection, completionHandler: {(sampleBuffer, error) in
if (sampleBuffer != nil) {
let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(sampleBuffer)
let dataProvider = CGDataProvider(data: imageData as! CFData)
let cgImageRef = CGImage(jpegDataProviderSource: dataProvider!, decode: nil, shouldInterpolate: true, intent: CGColorRenderingIntent.defaultIntent)
let imageSaved = UIImage(cgImage: cgImageRef!, scale: 1.0, orientation: UIImageOrientation.right)
self.present(BViewController(), animated: false, completion: { Void in
BViewController().integrate(image: imageSaved)
})
}
}
}
}
================================================================
class BViewController : UIViewController {
let imageView = UIImageView()
override func viewDidLoad() {
super.viewDidLoad()
imageView.frame = view.bounds
imageView.contentMode = .scaleAspectFill
imageView.clipsToBounds = true
view.addSubview(imageView)
}
func integrate(image: UIImage){
imageView.image = image
}
}
I finally fixed it with matt's help :
class AViewController: UIViewController {
func capture(){
...
let destinationVC = BViewController()
destinationVC.image = imageSaved
self.present(destinationVC, animated: false, completion: nil)
}
}
//=====================================================
class BViewController : UIViewController {
var image = UIImage()
let imageView = UIImageView()
override func viewDidLoad() {
super.viewDidLoad()
imageView.frame = view.bounds
imageView.image = image
imageView.contentMode = .scaleAspectFill
imageView.clipsToBounds = true
view.addSubview(imageView)
}
}
self.present(BViewController(), animated: false, completion: { Void in
BViewController().integrate(image: imageSaved)
})
The phrase BViewController() means "make a completely new view controller". But you say it twice! So the view controller you present (first line) and the view controller you give the image to (second line) are two completely different view controllers.