Workaround date picker in date form field

android/src/main/java/com/pspdfkit/flutter/pspdfkit/FlutterPdfUiFragment.kt

@@ -17,6 +17,7 @@ package com.pspdfkit.flutter.pspdfkit
 ///  This notice may not be removed from this file.
 ///
 import com.pspdfkit.document.PdfDocument
+import com.pspdfkit.flutter.pspdfkit.util.FormFieldMigrationHelper
 import com.pspdfkit.ui.PdfUiFragment
 
 class FlutterPdfUiFragment : PdfUiFragment() {
@@ -25,5 +26,6 @@ class FlutterPdfUiFragment : PdfUiFragment() {
         super.onDocumentLoaded(document)
       // Notify the Flutter PSPDFKit plugin that the document has been loaded.
         EventDispatcher.getInstance().notifyDocumentLoaded(document)
+        FormFieldMigrationHelper.migrateFieldFormatActions(document)
     }
 }

android/src/main/java/com/pspdfkit/flutter/pspdfkit/util/FormFieldMigrationHelper.kt

@@ -0,0 +1,61 @@
+/*
+ *   Copyright © 2025 PSPDFKit GmbH. All rights reserved.
+ *
+ *   THIS SOURCE CODE AND ANY ACCOMPANYING DOCUMENTATION ARE PROTECTED BY INTERNATIONAL COPYRIGHT LAW
+ *   AND MAY NOT BE RESOLD OR REDISTRIBUTED. USAGE IS BOUND TO THE PSPDFKIT LICENSE AGREEMENT.
+ *   UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS SUBJECT TO CIVIL AND CRIMINAL PENALTIES.
+ *   This notice may not be removed from this file.
+ */
+
+package com.pspdfkit.flutter.pspdfkit.util
+
+import com.pspdfkit.annotations.actions.AnnotationTriggerEvent
+import com.pspdfkit.annotations.actions.JavaScriptAction
+import com.pspdfkit.document.PdfDocument
+import com.pspdfkit.forms.FormElement
+import com.pspdfkit.forms.FormType
+import com.pspdfkit.forms.TextInputFormat
+
+object FormFieldMigrationHelper {
+    @JvmStatic
+    fun migrateFieldFormatActions(document: PdfDocument): Boolean {
+        var changed = false
+        document.formProvider.formElements.forEach { element ->
+            if (element.type == FormType.TEXT) {
+                changed = migrateFieldFormatActions(element) or changed
+            }
+        }
+        return changed
+    }
+
+    private fun migrateFieldFormatActions(element: FormElement): Boolean {
+        if (element.getInputFormat() in listOf(TextInputFormat.DATE, TextInputFormat.TIME)) return false
+
+        element.getJavaScriptActionForEvent(AnnotationTriggerEvent.FIELD_FORMAT)?.let { action ->
+            if (action.startsWith("AFTime") || action.startsWith("AFDate")) {
+                action.replace("_Format", "_Keystroke").also { fixedFormat ->
+                    element.annotation.setAdditionalAction(AnnotationTriggerEvent.FORM_CHANGED, JavaScriptAction(fixedFormat))
+                    return true
+                }
+            }
+        }
+        return false
+    }
+
+    private fun FormElement.getInputFormat(): TextInputFormat {
+        val formatString = getJavaScriptActionForEvent(AnnotationTriggerEvent.FORM_CHANGED)
+            ?: return TextInputFormat.NORMAL
+
+        return when {
+            formatString.startsWith("AFDate_Keystroke")
+                -> TextInputFormat.DATE
+            formatString.startsWith("AFTime_Keystroke")
+                -> TextInputFormat.TIME
+            else -> TextInputFormat.NORMAL
+        }
+    }
+
+    private fun FormElement.getJavaScriptActionForEvent(event: AnnotationTriggerEvent): String? =
+        (annotation.getAdditionalAction(event) as? JavaScriptAction
+            ?: formField.getAdditionalAction(event) as? JavaScriptAction)?.script
+}

example/lib/examples.dart

@@ -45,7 +45,7 @@ const String _documentPath = 'PDFs/PSPDFKit.pdf';
 const String _measurementsDocs = 'PDFs/Measurements.pdf';
 const String _lockedDocumentPath = 'PDFs/protected.pdf';
 const String _imagePath = 'PDFs/PSPDFKit_Image_Example.jpg';
-const String _formPath = 'PDFs/Form_example.pdf';
+const String _formPath = 'PDFs/formdoc.pdf';
 const String _instantDocumentJsonPath = 'PDFs/Instant/instant-document.json';
 const String _xfdfPath = 'PDFs/Instant/document.xfdf';
 const String _processedDocumentPath = 'PDFs/Embedded/PSPDFKit-processed.pdf';