Not able to add image in Digital signature field in Android

Product:Pdftron SDK android

Product Version:9.2.3

Please give a brief summary of your issue:
I am not able to add images in signature field.when clicked on add image icon signature tool closes. below code is my toolmanager and i am also attaching image

val mToolManager = ToolManagerBuilder.from()
.setDisableQuickMenu(true)
.setShowSavedSignatures(false)
.addCustomizedTool(CustomSignature.MODE, CustomSignature::class.java)
.build(this@DocumentViewerActivity, pdfViewCtrl)

    annotationToolbar.setup(mToolManager)
    annotationToolbar.hideButton(AnnotationToolbarButtonId.CLOSE)

Please describe your issue and provide steps to reproduce it:
(The more descriptive your answer, the faster we are able to help you)

Please provide a link to a minimal sample where the issue is reproducible:

Hello, I’m Ron, an automated tech support bot :robot:

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

Guides:APIs:Forums:

Hi,

You will need to add setAdvancedAnnotationListener to your toolManager and handle the callback from onActivityResult.

Here is a sample:

Could you please give this a try to see if it works?

Thanks,
Andrew.