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Xamarin / Guides / Viewer Events (Android)
Apryse SDK allows you to detect and act in response to various events.
Event listeners can be added to a
PdfViewCtrlTabHostFragment2 to listen for document viewer events. This can be done by adding a
PdfViewCtrlTabHostFragment2.addHostListener(). Some useful events include:
|Called when document associated with a tab is loaded.|
|Called when the tab host has been shown.|
|Called when the tab host has been hidden.|
|Called when the last tab in the tab host has been closed, and therefore there are no more tabs.|
|Called when a new tab has been selected excluding the initial tab.|
|Called when navigation button has been pressed.|
PdfViewCtrlTabFragment2 has its own events and and you can listen for them by adding a
PdfViewCtrlTabFragment2.setTabListener(). Some useful events include:
|Called when the document has been loaded.|
|Called when a new tab has been opened.|
|Called when the tab fragment is paused.|
|Called when download successfully has been finished.|
Touch events, annotation events, quick menu events and tool change events in the document viewer are all managed by the
ToolManager. You can learn more about
ToolManager events here .
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