How to Allow User to Pick the Image with Swift

How to allow user to pick the image with Swift?

If you just want let the user choose image with UIImagePickerController use this code:

import UIKit


class ViewController: UIViewController, UINavigationControllerDelegate, UIImagePickerControllerDelegate {

    @IBOutlet var imageView: UIImageView!
    @IBOutlet var chooseBuuton: UIButton!
    var imagePicker = UIImagePickerController()

    @IBAction func btnClicked() {

        if UIImagePickerController.isSourceTypeAvailable(.savedPhotosAlbum){
            print("Button capture")

            imagePicker.delegate = self
            imagePicker.sourceType = .savedPhotosAlbum
            imagePicker.allowsEditing = false

            present(imagePicker, animated: true, completion: nil)
        }
    }

    func imagePickerController(picker: UIImagePickerController!, didFinishPickingImage image: UIImage!, editingInfo: NSDictionary!){
        self.dismiss(animated: true, completion: { () -> Void in

        })

        imageView.image = image
    }
}

How can I allow a user to pick an image from their apple device?

In Swift 4.2, the delegate method has been changed to:

func imagePickerController(_ picker: UIImagePickerController, 
    didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any])

And UIImagePickerControllerOriginalImage has been renamed to UIImagePickerController.InfoKey.originalImage.

You should change your method signature and the name you use for the key. Your code should work fine.

How to allow the user to pick a photo from his camera roll or photo library?

I worked on an application that allows user to select a personal image. I had two UIButtons which could help the user to pick a picture, whether it was from camera or library. It's something like this:

- (void)camera {
if(![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
    return;
}
UIImagePickerController *picker = [[[UIImagePickerController alloc] init] autorelease];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
//Permetto la modifica delle foto
picker.allowsEditing = YES;
//Imposto il delegato
[picker setDelegate:self];

[self presentModalViewController:picker animated:YES];
}
- (void)library {
//Inizializzo la classe per la gestione della libreria immagine
UIImagePickerController *picker = [[[UIImagePickerController alloc] init] autorelease];
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
//Permetto la modifica delle foto
picker.allowsEditing = YES;
//Imposto il delegato
[picker setDelegate:self];

[self presentModalViewController:picker animated:YES];
}

You have to implement the UIImagePickerControllerDelegate:

@interface PickPictureViewController : UIViewController <UIImagePickerControllerDelegate>

@implementation PickPictureViewController

#pragma mark UIImagePickerController Delegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
UIImage *pickedImage = [info objectForKey:UIImagePickerControllerEditedImage];
if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
    UIImageWriteToSavedPhotosAlbum(pickedImage, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
}
[self dismissModalViewControllerAnimated:YES];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
[self dismissModalViewControllerAnimated:YES];
}
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo{}

Hope it helps! ;)

Allow the user to choose the profile picture he wants and change whenever he wants

If i am not Wrong You want the Image to be Stored in As it if also the User sign out from app.

You can possibly Store the Image in Document Directory

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
        let path = try! FileManager.default.url(for: FileManager.SearchPathDirectory.documentDirectory, in: FileManager.SearchPathDomainMask.userDomainMask, appropriateFor: nil, create: false)
        let newPath = path.appendingPathComponent("image.jpg") //Possibly you can Use the UserName to fetch easily User-wise
        let jpgImageData = UIImageJPEGRepresentation(image, 1.0)
        do {
            try jpgImageData!.write(to: newPath)
        } catch {
            print(error)
        }
    }
}

To Fetch the Image Back:-

let nsDocumentDirectory = FileManager.SearchPathDirectory.documentDirectory
let nsUserDomainMask    = FileManager.SearchPathDomainMask.userDomainMask
let paths               = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
if let dirPath          = paths.first
    {
        let imageURL = URL(fileURLWithPath: dirPath).appendingPathComponent("image.png")
        let image    = UIImage(contentsOfFile: imageURL.path)
        // Do whatever you want with the image
}

Hope this Helps you.

You can use Scenario Like. Initially The image view will be Empty.

1. User will select the image using picker View.
2. It will be stored in Document Directory
3. User Log out from App
4. User log in back to app(At that time check if any image is there with the users name then fetch from Document directory and directly
   show or else blank)
5. User can change profile picture and step 1-4 Repeated

Edited : Integrated in you Code:

class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

@IBOutlet var imageView: UIImageView!
@IBOutlet var chooseBuuton: UIButton!
var imagePicker = UIImagePickerController()


override func viewDidLoad() {

    //Check if image exist in Document Directory

    let nsDocumentDirectory = FileManager.SearchPathDirectory.documentDirectory
    let nsUserDomainMask    = FileManager.SearchPathDomainMask.userDomainMask
    let paths               = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
    if let dirPath          = paths.first
    {
        let imageURL = URL(fileURLWithPath: dirPath).appendingPathComponent("image.png")
        let image    = UIImage(contentsOfFile: imageURL.path)
        imageView.image = image
    }else{

        // Image not present
        // Do whatever you want to do here
    }
}


func imagePickerController(picker: UIImagePickerController!, didFinishPickingImage image: UIImage!, editingInfo: NSDictionary!){
    self.dismiss(animated: true, completion: { () -> Void in

    })

    imageView.image = image
}

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
    dismiss(animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
        imageView.image = image
        imageView.contentMode = .scaleAspectFill
        let path = try! FileManager.default.url(for: FileManager.SearchPathDirectory.documentDirectory, in: FileManager.SearchPathDomainMask.userDomainMask, appropriateFor: nil, create: false)
        let newPath = path.appendingPathComponent("image.jpg") //Possibly you can Use the UserName to fetch easily User-wise
        let jpgImageData = UIImageJPEGRepresentation(image, 1.0)
        do {
            try jpgImageData!.write(to: newPath)
        } catch {
            print(error)
        }
    }
    dismiss(animated: true, completion: nil)
}

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {

    let controller = UIImagePickerController()
    controller.delegate = self
    controller.sourceType = .photoLibrary
    present(controller, animated: true, completion: nil)
}}

Possibly This would help You. Let me know if it works

Allowing user to select image from Camera, Photo Library or Photo Albums and hit an error I cannot solve

I've answered my own question!

the extension class ViewController was incorrectly named. My .swift file was named something else.

I also moved the UIImageViewControllerDelegate and the UINavigatonControllerDeletage from the original class at the top of the code so it only appeared in the extension!

Swift 3: How to allow users to select multiple images from photo library?

How to install frameworks/projects via CocoaPods ?

Answer

Try to install cocoaPods:

$ sudo gem install cocoapods

Go to your project folder:

pod init

A file called podfile will be created in your project folder.
Edit that file:

pod 'YangMingShan'

After that run:

pod install

Remember to open the generated workspace file after that.

How to make UIImagePickerController for camera and photo library at the same time in swift

Import UIImagePickerControllerDelegate and create a variable to assign UIImagePickerController
var imagePicker = UIImagePickerController() and set imagePicker.delegate = self.

Create an action sheet to display options for 'Camera' and 'Photo library'.

On your button click action:

@IBAction func buttonOnClick(_ sender: UIButton)
{
    self.btnEdit.setTitleColor(UIColor.white, for: .normal)
    self.btnEdit.isUserInteractionEnabled = true
    
    let alert = UIAlertController(title: "Choose Image", message: nil, preferredStyle: .actionSheet)
    alert.addAction(UIAlertAction(title: "Camera", style: .default, handler: { _ in
        self.openCamera()
    }))
    
    alert.addAction(UIAlertAction(title: "Gallery", style: .default, handler: { _ in
        self.openGallary()
    }))
    
    alert.addAction(UIAlertAction.init(title: "Cancel", style: .cancel, handler: nil))
    
    /*If you want work actionsheet on ipad
    then you have to use popoverPresentationController to present the actionsheet,
    otherwise app will crash on iPad */
    switch UIDevice.current.userInterfaceIdiom {
    case .pad:
        alert.popoverPresentationController?.sourceView = sender
        alert.popoverPresentationController?.sourceRect = sender.bounds
        alert.popoverPresentationController?.permittedArrowDirections = .up
    default:
        break
    }
    
    self.present(alert, animated: true, completion: nil)
}


func openCamera()
    {
        if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerController.SourceType.camera))
        {
            imagePicker.sourceType = UIImagePickerController.SourceType.camera
            imagePicker.allowsEditing = true
            self.present(imagePicker, animated: true, completion: nil)
        }
        else
        {
            let alert  = UIAlertController(title: "Warning", message: "You don't have camera", preferredStyle: .alert)
            alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(alert, animated: true, completion: nil)
        }
    }

    func openGallary()
    {
        imagePicker.sourceType = UIImagePickerController.SourceType.photoLibrary
        imagePicker.allowsEditing = true
        self.present(imagePicker, animated: true, completion: nil)
    }

Download sample project for Swift, SwiftUI

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