TOPIC:

At the moment the pdf View only has the pinch/spread to zoom.

I want to add a double tap to zoom feature.

For that I would like to have three zoom levels 100% 125% 150% for example. On double tap should now cycle through those zoom levels. Is it possible to set the View to a specific zoom level from code?

i'll add this in furture

Take a look there

How do I use the new methods to manage zoom?

I couldn't find something related to zoom in the classes or in the javadoc.
Maybe I only looked at the wrong location.

pass the coordinate that double clicked.

method of PDFView:
viewGetRatio
viewSetRatio
viewEnableTextSelection