TOPIC:

Hello,

Could you please let me know if there is any possibility of controlling the zoom by pressing a zoom-in/ zoom-out button? We want to add these buttons, but we couldn't find any way to control the zoom using the library.

Thank you,
Bianca.

Hi,
I suggest you to look at this method to handle zoom level :You can see how to use it in OnPDFDoubleTapped method of PDFViewAct.

Same problem here.
How I can subscribe to the event?
I have
var btnZoomLevel = FindViewById(Resource.Id.btnZoomCustom);
AttachLabel(btnZoomLevel, LocalizedMessages.ViewerZoomLevel, Resource.Drawable.ZoomCustom);
btnZoomLevel.Click += (sender, e) =>
{ ??????? }

then in my OnPDFDoubleTapped I have

float mCurZoomLevel = p0.VGetZoom();
if (p0.VGetScale() <= p0.VGetMinScale())
Global.ZoomStep = 1;
if ((mCurZoomLevel > Global.ZoomLevel && Global.ZoomStep > 0) ||
(mCurZoomLevel == 1 && Global.ZoomStep < 0)) //reverse zoom step
Global.ZoomStep *= -1;

p0.VZoomSet((int)p1, (int)p2, p0.VGetPos((int)p1, (int)p2), mCurZoomLevel + Global.ZoomStep);
return true;

Currently the method vZoomSet is not accessible from PDFLayoutView.

You need to modify the java demo project , add the following method to PDFLayoutView, regenerate the aar and replace it into the Xamarin project.

Note: we will include this method in the next releases.

Ok, when did you plan next release? In this release there is only this feature or something else?

We doesn't have an exact date now, but maybe it will be by the end of the month.

We are working on other fixes/enhancements.