Double tap Zoom

Hi,

I need create a feature using double tap for enable zoom, but I can't do the layout goes to the position tapped.

Follow my code:

public void doZoom(int x, int y) {
final float scale = m_layout.vGetZoom();
float zoomTo = scale + 1;
if (scale >= maxZoom) {
zoomTo = 1.0f;
}
m_layout.vZoomStart();
final PDFPos pdfPos = PDFGetPos(x, y);
m_layout.vZoomSet(x, y, pdfPos, zoomTo);
m_layout.vZoomConfirmed();
}

Thanks

Hi,
if you want a doubleZoom In/Out you only have to add the following line at the end of OnPDFDoubleTapped method of PDFReader class before the return statement:
Maybe this will help you : www.radaeepdf.com/forum/Android-developm...et?limitstart=0#9795

If you want a different behaviour please better explain your needs..

HI,

I'm using PDFLayoutView and this don't have a onPDFDoubleTapped method.

My code do a zoom, but I need center de pega zoomed in the tapped position, this not work in my code.

Do you recommend I change the view I'm using?

Thanks

Hi,
try to add this method to PDFLayoutView:

then change your code with something like that
If it doesn't work, check x and y values...are they correctly passed to your method?