Xamarin.Android annotation RemoveFromPage help

digitalpages
Topic Author
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New Member

IP: 192.168.0.71 8 years 9 months ago #12441 by digitalpages

Xamarin.Android annotation RemoveFromPage help was created by digitalpages

Hello, I am having trouble in removing a highlight annotation from pdf on Xamarin Android. I'm successfully able to add highlights but can't seem to figure out why removing them using RemoveFromPage() won't work.

Here are some details

Triple checked package name and everything related to licensing (we are using professional version).
Successfully implemented Xamarin.iOS adding and removing highlights. We are not mistakenly using the same package name from the iOS app
We are asking to render the page again after removing annotation.
We are using the latest version (at the writing of this post).

Here is some code:

NativePage is Page.Annotation class from Com.radaee.pdf

Code:

public Task<ICorePdfAnnotation> AddHighlight(ICorePdfSel selection, string color)
		{
			if (!InitObjs()) return Task.FromResult((ICorePdfAnnotation)null);

			var status = NativePage?.AddAnnotMarkup(selection.StartIndex, selection.EndIndex, 0) == true;
			ICorePdfAnnotation result = null;

			if (status)
			{
				var annotation = NativePage?.GetAnnot(NativePage.AnnotCount - 1);
				var colorObj = Color.ParseColor(color);

				annotation.SetFillColor(colorObj.ToArgb());
				annotation.SetName("Test");

				result = new AndroidPdfAnnotationWrapper(annotation);
			}

			return Task.FromResult(result);
		}

Then the wrapper class:

Code:

public class AndroidPdfAnnotationWrapper : ICorePdfAnnotation
	{
		private Page.Annotation annotation;

		public AndroidPdfAnnotationWrapper(Page.Annotation annotation)
		{
			this.annotation = annotation;
		}

		public bool Remove()
		{
			var status = annotation.RemoveFromPage();
			return status;
		}
	}

the "status" return is always false

Any other additional debugging tips you guys could share?

Thanks...

nermeen
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Platinum Member

IP: 192.168.0.71 8 years 9 months ago #12443 by nermeen

Replied by nermeen on topic Xamarin.Android annotation RemoveFromPage help

We have tried the below code, and we couldn't reproduce the issue:

Code:

Document document = new Document();
            if (document.Open(path, "") == 0)
            {
                bool result = false;
                Page page = document.GetPage(0);
                page.ObjsStart();
                if (page.AddAnnotMarkup(170, 616, 0))
                {
                    Page.Annotation annot = page.GetAnnot(page.AnnotCount - 1); 
                    if (annot != null)
                    {
                        result = annot.RemoveFromPage();
                    }
                }
            }

If you are not saving after adding the annotation, make sure to use the same page object, and not to close it, or you will lose your modifications.

никкуз1
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IP: 85.249.28.1 4 years 3 months ago #15650 by никкуз1

Replied by никкуз1 on topic Xamarin.Android annotation RemoveFromPage help

Hi. What version of the license do I need to work with annotations? Now I have a standard license. I can add annotations with text selection (m_view.vSelMarkup(color, itype)). But I cannot remove them (m_view.vAnnotRemove ()

. I have the same problem.

if (m_status != PDFV_STATUS.STA_ANNOT) return;
bool r = m_annot.RemoveFromPage();
vRenderSync(m_pages[m_annot_pos.pageno]);
vDraw();
vAnnotEnd();

r - always false

I do not need to save modified pdf.
I try demo licence:
bool r = PDFGlobal.ActiveLicense(2, "Radaee", "[email protected]", "YOOW28-VS57CA-H3CRUZ-WAJQ9H-5R5V9L-KM0Y1L");
OnPDFAnnotClicked(PDFPage page, PDFAnnot annot) is not called.

support
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Administrator

IP: 2.234.168.74 4 years 3 months ago #15651 by support

Replied by support on topic Xamarin.Android annotation RemoveFromPage help

Dear user,
to interact and edit annotations you need an active Professional or Premium license.
You may check the trial key but you shall change your current application package name from your own to the same we use in the demo project.

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