Xcode: How to select an image from iPhone photo library?

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Are you developing the next Instagram? Your users will have to be able to select an image from the photo album to share. Or even take a photo with their camera directly from within your amazing iOS app.

Well, in both cases, you will need to handle these “gesture actions” in your Swift code.

OK, let us take a step-by-step look at how to select an image from iPhone photo library.

To select an image from the photo library in Xcode, you can use the UIImagePickerController class. Here’s a step-by-step guide on how to implement it in your Xcode project:

  1. Open your Xcode project and navigate to the view controller where you want to add the image selection functionality. This may or may not be the default ViewController.swift file.
  2. Import the UIKit framework at the top of your view controller file:
import UIKit
  1. Declare your view controller class and make it conform to the UIImagePickerControllerDelegate and UINavigationControllerDelegate protocols. For example:
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
    // ...
}
  1. Add a button or any other user interface element to trigger the image selection. Connect this element to an action method in your view controller (ViewController.swift). For example, you can use a button and connect it to an IBAction method:
@IBAction func selectImage(_ sender: UIButton) {
    // Code to handle image selection
}
  1. Inside the selectImage method, instantiate a UIImagePickerController:
@IBAction func selectImage(_ sender: UIButton) {
    let imagePicker = UIImagePickerController()
    // Additional configuration goes here
    // ...
}
  1. Set the delegate property of the UIImagePickerController instance to self:
imagePicker.delegate = self
  1. Set the sourceType property of the UIImagePickerController instance to .photoLibrary:
imagePicker.sourceType = .photoLibrary
  1. Present the image picker view controller modally:
present(imagePicker, animated: true, completion: nil)
  1. Implement the imagePickerController(_:didFinishPickingMediaWithInfo:) method to handle the selected image. This method is called when the user actually selects an image from the photo library:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
    if let selectedImage = info[.originalImage] as? UIImage {
        // Handle the selected image
        // ...
    }

    picker.dismiss(animated: true, completion: nil)
}
  1. Implement the imagePickerControllerDidCancel(_:) method to handle the user canceling the selection process:
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
    picker.dismiss(animated: true, completion: nil)
}

That’s it! With these steps, you should be able to select an image from the photo library in your Xcode project using the UIImagePickerController. Remember to properly handle the selected image or any errors that may occur during the image selection process.

Hope this was helpful!