Use a Custom Image Picker Controller in Swift for iOS

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//
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//  Copyright © 2018-2025 PSPDFKit GmbH. All rights reserved.
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//
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//  The Nutrient sample applications are licensed with a modified BSD license.
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//  Please see License for details. This notice may not be removed from this file.
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//
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import PSPDFKit
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import PSPDFKitUI
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class CustomImagePickerController: ImagePickerController {
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    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
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        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
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        // Setting to `PSPDFImageQualityAll` to enable the quality sheet.
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        allowedImageQualities = .all
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    }
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    required init?(coder aDecoder: NSCoder) {
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        fatalError("init(coder:) has not been implemented")
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    }
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    // Make sure you configured Image Permissions in your app. See https://www.nutrient.io/guides/ios/getting-started/permissions/#image-permissions for more details.
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    override class func availableImagePickerSourceTypes() -> [NSNumber] {
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        return [NSNumber(value: UIImagePickerController.SourceType.photoLibrary.rawValue)]
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    }
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}
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class CustomImagePickerControllerExample: Example {
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    override init() {
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        super.init()
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        title = "Custom Image Picker"
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        contentDescription = "Custom Image Picker with source type UIImagePickerControllerSourceType.photoLibrary"
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        category = .subclassing
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        priority = 300
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    }
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    override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController {
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        let document = AssetLoader.writableDocument(for: .annualReport, overrideIfExists: false)
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        let controller = PDFViewController(document: document) {
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            $0.overrideClass(ImagePickerController.self, with: CustomImagePickerController.self)
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        }
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        return controller
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    }
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}