Openflow touchAtIndex delegate method not triggered

i followed this tutorial (http://github.com/tupps/OpenFlow) for creating cover-flow ,

but in open flow openflow library 'touchAtIndex' delegate method was not being called when taping the images.开发者_运维技巧

any suggestions on to trigger that method?

here i found another way to detect single tap on image . i created a custom button and placed it image zoomed area n given a tag value for each image n i presented a view on each image touch...

[(AFOpenFlowView *)self.view setViewDelegate:self];