How to add a circular cropper in UIImagePickerController when camera is running ? where picture should be cropped as per the circular area. (iPad)
class imagePickerHelper: NSObject {
override init() {}
var chosenImage: UIImage?
var getimage: ((_ selectedItem: UIImage ,_ selectedvalue: Bool) -> Void)?
static let helper = imagePickerHelper()
var viewcontroller = UIViewController()
func opencamera (withParentViewController ParentViewController: UIViewController,source: UIImagePickerControllerSourceType,selectedimage: #escaping (_ value: UIImage?,_ selectedvalue: Bool?) -> Void){
if UIImagePickerController.isSourceTypeAvailable(.camera) {
let picker = UIImagePickerController()
viewcontroller = ParentViewController
picker.delegate = self
picker.sourceType = source
picker.allowsEditing = true
picker.sourceType = UIImagePickerControllerSourceType.camera
picker.cameraCaptureMode = .photo
picker.cameraDevice = UIImagePickerController.isCameraDeviceAvailable(.front) ? .front : .rear
picker.modalPresentationStyle = .fullScreen
viewcontroller.present(picker,animated: true,completion: nil)
getimage = selectedimage
}
else{
noCamera()
}
}
func noCamera() {
let alertVC = UIAlertController(
title: "No Camera",
message: "Sorry, this device has no camera",
preferredStyle: .alert)
let okAction = UIAlertAction(
title: "OK",
style: .default,
handler: nil)
alertVC.addAction(okAction)
viewcontroller.present(
alertVC,
animated: true,
completion: nil)
}
}
extension imagePickerHelper: UIImagePickerControllerDelegate,UINavigationControllerDelegate{
//MARK: - Delegates
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
chosenImage = info[UIImagePickerControllerEditedImage] as? UIImage //2
// myImageView.contentMode = .scaleAspectFit //3
// myImageView.image = chosenImage //4
getimage!(chosenImage!,true)
viewcontroller.dismiss(animated: true, completion: nil) //5
picker.dismiss(animated: true, completion: nil);
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
viewcontroller.dismiss(animated: true, completion: nil)
}
}
Related
I already worked on UIImagePickerController. This code was already works fine in Xcode 11.3. But when I run on Xcode 12 Image picker delegate is not calling in Xcode12.
/// Picked Image
struct PickedImage {
var image: UIImage?
var api: String?
}
/// Image picker
class ImagePicker: NSObject {
typealias ImagePickerHandler = ((_ selected: PickedImage) -> ())
private weak var presentationController: UIViewController?
let pickerController: UIImagePickerController = UIImagePickerController()
var apiKey: String?
private var handler: ImagePickerHandler? = nil
private func action(for type: UIImagePickerController.SourceType, title: String) -> UIAlertAction? {
guard UIImagePickerController.isSourceTypeAvailable(type) else {
return nil
}
return UIAlertAction(title: title, style: .default) { (action) in
DispatchQueue.main.async {
self.pickerController.mediaTypes = ["public.image"]
self.pickerController.sourceType = type
self.pickerController.delegate = self
self.presentationController?.present(self.pickerController, animated: true, completion: {
})
}
}
}
/// Present source view
/// - Parameter sourceView: view
func present(presentationController: UIViewController, completed: ImagePickerHandler? = nil) {
self.handler = completed
self.presentationController = presentationController
// self.delegate = delegate
let alertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
if let action = self.action(for: .camera, title: "Take photo") {
alertController.addAction(action)
}
if let action = self.action(for: .savedPhotosAlbum, title: "Camera roll") {
alertController.addAction(action)
}
if let action = self.action(for: .photoLibrary, title: "Photo library") {
alertController.addAction(action)
}
alertController.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
// if UIDevice.current.userInterfaceIdiom == .pad {
// alertController.popoverPresentationController?.sourceView = sourceView
// alertController.popoverPresentationController?.sourceRect = sourceView.bounds
// alertController.popoverPresentationController?.permittedArrowDirections = [.down, .up]
// }
self.presentationController?.present(alertController, animated: true)
}
private func pickerController(didSelect image: UIImage?, imageURL: URL?) {
pickerController.dismiss(animated: true, completion: nil)
// self.delegate?.imagePicker(picker: self, didSelected: image, apikey: apiKey)
handler?(PickedImage(image: image, api: apiKey))
}
}
/// ImagePicker controller delegate
extension ImagePicker: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
self.pickerController(didSelect: nil, imageURL: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
self.pickerController(didSelect: info[.originalImage] as? UIImage, imageURL: info[.imageURL] as? URL)
}
}
When I check delegate is applied or not using breakpoint. like in console means
po imagepicker.delegate
there after image picker delegate was working fine. But when I remove breakpoint its delegate is not calling.
I don't know what is the reason. Why its not working. May I know how to fix this problem.
is there any reason to not put pickerController.delegate = self before self.presentationController?.present(pickerController, animated: true, completion: {})'?
if no, maybe you can put pickerController.delegate = self before that, and try again.
This is most likely because you're not retaining your picker controller in a variable. As soon as your function finishes, it gets deallocated.
For example I have something like this:
class MyClass: UIImagePickerControllerDelegate {
let imagePicker = UIImagePickerController()
}
func pickImageFromGallery() {
self.imagePicker.delegate = self
self.imagePicker.sourceType = UIImagePickerController.SourceType.photoLibrary
self.imagePicker.allowsEditing = false
self.present(self.imagePicker, animated: true, completion: nil)
}
... and the delegate methods as well
You code was always wrong; it's just lucky if it ever worked:
let pickerController: UIImagePickerController = UIImagePickerController()
pickerController.mediaTypes = ["public.image"]
pickerController.sourceType = "Photo library"
self.presentationController?.present(pickerController, animated: true, completion: {
pickerController.delegate = self
})
Change to:
let pickerController: UIImagePickerController = UIImagePickerController()
pickerController.mediaTypes = ["public.image"]
pickerController.sourceType = .photoLibrary
pickerController.delegate = self
self.present(pickerController, animated: true)
I think you are doing a silly mistake. just change a few lines of code and then you are good to go.
just follow my Steps
=> Here ProfileViewController is my UIViewController where I am going to pick Image from Gallery and Set image to UIImageView. You have to use your UIViewController where you want to Pick an Image.
ProfileViewController: UIViewController{
let pickerController = UIImagePickerController()
viewDidLoad(){
}
#IBAction func pickImageAction(sender: UIButton){
self.openImagePicker()
}
func openImagePicker()
{
pickerController.delegate = self
pickerController.allowsEditing = true
pickerController.mediaTypes = ["public.image", "public.movie"]
pickerController.sourceType = .photoLibrary // Pick image from PhotoLibrary
//pickerController.sourceType = .savedPhotosAlbum // Pick Saved Images
//pickerController.sourceType = .camera // Click Image using Camera
self.present(pickerController, animated: true)
} //End of setupImagePicker
} // End of ProfileViewController
// MARK:- Delegate method for UIImagePicker
extension ProfileViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
guard let image = info[.editedImage] as? UIImage else { return }
// image is your image which you picked from Image Gallery or using Camera.
// you can set this image directly to your UIImageView.
// self.yourImageView.image = image
// or you can compress this image, converting to JPG image type.
// compressionQuality will reduce your image quality and Image Size.
if let jpegData = image.jpegData(compressionQuality: 0.8) {
// you can use this compressed image.
}
self.dismiss(animated: true)
}// End of didFinishPickingMediaWithInfo
} // End of Extension
Hello i am using UIImagePicker to take images but while picking images i want to CROP that image.. How to do that
i am able to pick images from gallery to imageview but while selecting image i need to crop the image.
I have tried below code:
class AddNewEventViewController: UIViewController, UIPickerViewDelegate,UIImagePickerControllerDelegate, UIPickerViewDataSource,UINavigationControllerDelegate {
#IBOutlet weak var imgPick: UIImageView!
var picker = UIImagePickerController()
override func viewDidLoad() {
super.viewDidLoad()
hideKeyboardWhenTappedAround()
picker.delegate = self
picker.allowsEditing = true
}
#IBAction func addProfileBtnAction(_ sender: Any) {
let actionSheetController: UIAlertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
actionSheetController.popoverPresentationController?.sourceView = self.contentView
let cancelAction: UIAlertAction = UIAlertAction(title: "Cancel", style: .cancel) { action -> Void in
}
actionSheetController.addAction(cancelAction)
let takePictureAction: UIAlertAction = UIAlertAction(title: "TakePhoto", style: .default) { action -> Void in
self.openCameraPicker()
}
actionSheetController.addAction(takePictureAction)
let choosePictureAction: UIAlertAction = UIAlertAction(title: "ChooseFromLibrary", style: .default) { action -> Void in
self.openPhotoGallery()
}
actionSheetController.addAction(choosePictureAction)
//Present the
self.present(actionSheetController, animated: true, completion: nil)
}
func openCameraPicker() {
picker.sourceType = UIImagePickerController.SourceType.camera
picker.cameraCaptureMode = .photo
picker.allowsEditing = true
picker.modalPresentationStyle = .fullScreen
present(picker,animated: true,completion: nil)
}
func openPhotoGallery() {
picker.sourceType = .photoLibrary
picker.allowsEditing = true
picker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
present(picker, animated: true, completion: nil)
}
// MARK: - UIImagePickerControllerDelegate Methods
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if let img = info[UIImagePickerController.InfoKey.editedImage] as? UIImage{
imgPick.image = img
}
else if let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage {
self.imgPick.image = image
}
dismiss(animated: true, completion: nil)
}
}
like this i am getting.. no crop
here i am getting images from gallery to imageview but not getting crop.
How to crop the images, please help me with the code.
I check with your code and i found you are missing to set delegate of UIImagePickerController
I try with photoLibrary for now
class ImagePickerViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
#IBOutlet var imageView:UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
self.openPhotoGallery()
}
func openPhotoGallery() {
let picker = UIImagePickerController()
picker.delegate = self
picker.sourceType = .photoLibrary
picker.allowsEditing = true
picker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
present(picker, animated: true, completion: nil)
}
// MARK: - UIImagePickerControllerDelegate Methods
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if let img = info[UIImagePickerController.InfoKey.editedImage] as? UIImage{
imageView.image = img
}
dismiss(animated: true, completion: nil)
}
}
I am currently making a program in swift that involves a screen of choosing an image from either camera or photo library using action sheet. This is fully functional however I would like to be able to choose a square section from the selected image, similar to apple default apps. How can I implement this? Here is my functional code:
func chooseImage(_ sender: Any) {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
let actionSheet = UIAlertController(title: "Photo Source", message: "Choose a source", preferredStyle: .actionSheet)
actionSheet.addAction(UIAlertAction(title: "Camera", style: .default, handler: { (action:UIAlertAction) in
if UIImagePickerController.isSourceTypeAvailable(.camera) {
imagePickerController.sourceType = .camera
self.present(imagePickerController, animated: true, completion: nil)
}else{
print("Camera not available")
}
}))
actionSheet.addAction(UIAlertAction(title: "Photo Library", style: .default, handler: { (action:UIAlertAction) in
imagePickerController.sourceType = .photoLibrary
self.present(imagePickerController, animated: true, completion: nil)
}))
actionSheet.addAction(UIAlertAction(title: "Default", style: .default, handler: { (action:UIAlertAction) in
self.avatarImageView.image = UIImage(named: "Avatar.png")
}))
actionSheet.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
self.present(actionSheet, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
avatarImageView.image = image
picker.dismiss(animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
// Saves the User singleton object onto the device
static func saveData() {
let savedData = NSKeyedArchiver.archivedData(withRootObject: User.sharedUser)
UserDefaults.standard.set(savedData, forKey: "user")
}
You can use default controls to achieve image cropping.
self.imgPicker.allowsEditing = true
Delegate Method
//MARK: image picker delegate method
//MARK:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
var image : UIImage!
if let img = info[UIImagePickerControllerEditedImage] as? UIImage
{
image = img
}
else if let img = info[UIImagePickerControllerOriginalImage] as? UIImage
{
image = img
}
picker.dismiss(animated: true,completion: nil)
}
Swift 4.0+
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
var image : UIImage!
if let img = info[UIImagePickerController.InfoKey.editedImage] as? UIImage
{
image = img
}
else if let img = info[UIImagePickerController.InfoKey.originalImage] as? UIImage
{
image = img
}
picker.dismiss(animated: true, completion: nil)
}
Don't forget to set allowsEditing to true.
Another option is to use TOCropViewController. Its does more with much less code. What I found good about it that it allows you to change the cropping rectangle.
class ViewController: UIViewController, CropViewControllerDelegate {
... //your viewcontroller code
func presentCropViewController {
let image: UIImage = ... //Load an image
let cropViewController = CropViewController(image: image)
cropViewController.delegate = self
present(cropViewController, animated: true, completion: nil)
}
func cropViewController(_ cropViewController: CropViewController,
didCropToImage image: UIImage, withRect cropRect: CGRect, angle: Int) {
// 'image' is the newly cropped version of the original image
}
}
Swift 5.0
The shortest way of declaring:
//MARK: image picker delegate method
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
var image : UIImage!
if let img = info[.editedImage] as? UIImage {
image = img
} else if let img = info[.originalImage] as? UIImage {
image = img
}
picker.dismiss(animated: true,completion: nil)
}
Button sender:
#objc func buttonClicked(sender: UIButton!) {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary) {
let picker = UIImagePickerController()
picker.delegate = self
picker.sourceType = UIImagePickerController.SourceType.photoLibrary
picker.allowsEditing = true
present(picker, animated: true, completion: nil)
}
}
Don't forget to grant Photo Library access in .plist
- (void)cropViewController:(TOCropViewController *)cropViewController didCropToImage:(UIImage *)image withRect:(CGRect)cropRect angle:(NSInteger)angle
{
[[NSUserDefaults standardUserDefaults] setObject:UIImageJPEGRepresentation(image, 1) forKey:#"image"];
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:#"cameraOn"];
[cropViewController dismissViewControllerAnimated:YES completion:^{
[self performSegueWithIdentifier:#"YourSegueIdentifier" sender:self];
}];
//UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
}
For (iOS13): Do all ViewController "cropController.modalPresentationStyle =.fullScreen" using storyboard or code.
This is work good and easily navigate to another controller. I also attached image so you can easily understand how to change presentation style.
Im trying to learn how to access and use the camera on IOS devices, trufully i cant find all that much info on it, at least not thats up to date or useful to learn at a beginner level.
Regardless, I've tried the below code but nothing happens when I click the button to open the camera it just freezes and does nothing, am i missing something or have i done something wrong?
import UIKit
import MobileCoreServices
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
#IBOutlet weak var myImg: UIImageView!
var newMedia: Bool!
#IBAction func cameraRoll(_ sender: Any) {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.savedPhotosAlbum){
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary
imagePicker.mediaTypes = [kUTTypeImage as String]
imagePicker.allowsEditing = false
self.present(imagePicker, animated: true, completion: nil)
newMedia = false
}
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let mediaType = info[UIImagePickerControllerMediaType] as! NSString
self.dismiss(animated: true, completion: nil)
if mediaType.isEqual(to: kUTTypeImage as String){
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
myImg.image = image
if (newMedia == true) {
UIImageWriteToSavedPhotosAlbum(image, self, #selector(ViewController.image(image:didFinishsavingWithError:contextInfo:)), nil)
} else if mediaType.isEqual(to: kUTTypeMovie as String){
//vid support
}
}
}
func image(image: UIImage, didFinishsavingWithError error: NSErrorPointer, contextInfo:UnsafeRawPointer){
if error != nil {
let alert = UIAlertController(title: "Save Failed", message: "Failed to save image", preferredStyle: UIAlertControllerStyle.alert)
let cancelAction = UIAlertAction(title: "OK", style: .cancel, handler: nil)
alert.addAction(cancelAction)
self.present(alert, animated: true, completion: nil)
}
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
self.dismiss(animated: true, completion: nil)
}
#IBAction func takePhoto(_ sender: Any) {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera){
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary
imagePicker.mediaTypes = [kUTTypeImage as String]
imagePicker.allowsEditing = false
self.present(imagePicker, animated: true, completion: nil)
newMedia = false
}
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
}
Would please review my code, I do not have any errors, but when I open my view controller, the camera doesn't start there is only a black screen, even the buttons do not appear.
import UIKit
import AVFoundation
class CameraViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate {
let picker = UIImagePickerController()
#IBOutlet weak var myImageView: UIImageView!
#IBOutlet weak var cameraView: UIView!
#IBAction func photoLibrary(_ sender: UIBarButtonItem) {
picker.allowsEditing = false
picker.sourceType = .photoLibrary
picker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
picker.modalPresentationStyle = .popover
present(picker, animated: true, completion: nil)
picker.popoverPresentationController?.barButtonItem = sender
}
#IBAction func shootPhoto(_ sender: UIBarButtonItem) {
if UIImagePickerController.isSourceTypeAvailable(.camera) {
picker.allowsEditing = false
picker.sourceType = UIImagePickerControllerSourceType.camera
picker.cameraCaptureMode = .photo
picker.modalPresentationStyle = .fullScreen
present(picker,animated: true,completion: nil)
} else {
noCamera()
}
}
func noCamera(){
let alertVC = UIAlertController(
title: "No Camera",
message: "Sorry, this device has no camera",
preferredStyle: .alert)
let okAction = UIAlertAction(
title: "OK",
style:.default,
handler: nil)
alertVC.addAction(okAction)
present(
alertVC,
animated: true,
completion: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
picker.delegate = self
}
//MARK: - Delegates
private func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : AnyObject])
{
var chosenImage = UIImage()
chosenImage = info[UIImagePickerControllerOriginalImage] as! UIImage //2
myImageView.contentMode = .scaleAspectFit //3
myImageView.image = chosenImage //4
dismiss(animated:true, completion: nil) //5
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
}
I only get completely black screen, even no hints from Swift. I do not know what to do now.
This happens when you have not set an initial viewcontroller. Please make sure the viewcontroller you want to load first is set as initial viewcontroller in your storyboard.