Select free text annotation in PDF using Swift for iOS

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//
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//  Copyright © 2017-2026 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 SelectFreeTextAnnotationsExample: Example {
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    override init() {
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        super.init()
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        title = "Select Free Text Annotations for editing"
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        category = .annotations
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        priority = 330
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    }
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    override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController? {
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        let document = AssetLoader.document(for: .annualReport)
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        // Create sample annotations
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        for annotationNumber in 1...6 {
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            let contents = "This is free-text annotation #\(annotationNumber)"
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            let freeText = FreeTextAnnotation(contents: contents)
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            freeText.fillColor = .yellow
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            freeText.fontSize = 15
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            freeText.boundingBox = CGRect(x: 300, y: annotationNumber * 100, width: 150, height: 150)
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            freeText.sizeToFit()
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            document.add(annotations: [freeText])
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        }
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        let pdfController = PDFViewController(document: document)
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        // Iterate over all annotations and select them.
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        weak let weakPDFController = pdfController
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        let annotations = (document.annotationsForPage(at: 0, type: .freeText))
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        for (index, freeText) in annotations.enumerated() {
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            DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(index + 1)) {
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                let pageView: PDFPageView? = weakPDFController?.pageViewForPage(at: 0)
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                pageView?.selectedAnnotations = [freeText]
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                // Get the annotation view and directly invoke editing.
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                let freeTextView = pageView?.annotationView(for: freeText) as? FreeTextAnnotationView
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                freeTextView?.beginEditing()
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            }
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        }
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        return pdfController
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    }
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}