On 07/10/2013, at 12:23 PM, Scott Rossi wrote: > I imagine you need to implement swipe detection before triggering > scrolling, and scrolling needs to be triggered only after exceeding a > distance threshold. The mail app is a good example. If you look > carefully, scrolling doesn't begin until touch exceeds a small distance, > so swipe to delete has a chance to operate before scrolling takes place. > > That's my guess anyway...
Thanks Scott. The iOS Calendar app works like that too and is exactly how I would like my app to behave. I've tried disabling the scroller as the default and then enabling it in a touchMove handler when the vertical swipe component is greater than the horizontal - but I couldn't get that to work either. I'll have another crack at it one day. Terry... > > Regards, > > Scott Rossi > Creative Director > Tactile Media, UX/UI Design > > > > > On 10/6/13 5:24 PM, "Terry Judd" <terry.j...@unimelb.edu.au> wrote: > >> Thanks for the code Scott. On a related issue, I've tried a number of >> different approaches for implementing side-to-side swiping within a >> vertically scrolling group (a day-per-view calendar object) but haven't >> managed to come up with anything that works reliably - especially on iOS. >> >> A combination of touchStart and touchRelease handlers works sort of OK on >> Android (touchMove and touchEnd messages don't seem to get sent reliably) >> but on iOS I don't seem to be able to prevent the group from scrolling >> vertically if the swipe is more than a little bit off the horizontal. >> >> Any ideas? >> >> Terry... >> >> On 07/10/2013, at 10:26 AM, Scott Rossi wrote: >> >>> Hi Roger: >>> >>> Might be wrong, but I don't believe there's a built-in swipe >>> monitor/property. I put together the following to detect course swipe >>> direction and added the ability to track the swipe angle. You can set >>> the >>> swipe distance threshold to control when an event is triggered from a >>> swipe. The code is written to place direction output in a field. >>> >>> >>> -- 50 PIXEL SWIPE THRESHOLD >>> >>> local hStart, vStart, theSwipeData >>> local theThreshold = 50 >>> >>> on touchStart theID >>> put item 1 of mouseLoc() into hStart >>> put item 2 of mouseLoc() into vStart >>> end touchStart >>> >>> on touchmove theID, X, Y >>> put empty into theSwipeData >>> if Y > vStart and abs(vStart - Y) > theThreshold then put "down," >>> after theSwipeData >>> if Y < vStart and abs(vStart - Y) > theThreshold then put "up," after >>> theSwipeData >>> if X > hStart and abs(hStart - X) > theThreshold then put "right," >>> after theSwipeData >>> if X < hStart and abs(hStart - X) > theThreshold then put "left," >>> after theSwipeData >>> if theSwipeData is not empty then put locToAngle(X,Y,hStart,vStart) >>> after theSwipeData >>> end touchmove >>> >>> on touchEnd theID >>> put "swipe: " into theResult >>> if theSwipeData is not empty then put theSwipeData after theResult >>> set text of fld 1 to theResult >>> end touchEnd >>> >>> function locToAngle pX,pY,pXorigin,pYorigin >>> put atan2(pY - pYorigin,pXorigin - pX) into R >>> return round(180+(R*(180/pi))) >>> end locToAngle >>> >>> >>> >>> >>> >>> Hope this helps. >>> >>> Regards, >>> >>> Scott Rossi >>> Creative Director >>> Tactile Media, UX/UI Design >>> >>> >>> >>> >>> On 10/6/13 2:09 PM, "Roger Eller" <roger.e.el...@sealedair.com> wrote: >>> >>>> I want a different action to occur based on the direction the user >>>> swipes >>>> a >>>> control. For example: >>>> >>>> on swipeLeft >>>> set the backgroundColor of me to red >>>> end swipeLeft >>>> >>>> on swipeRight >>>> set the backgroundColor of me to green >>>> end swipeRight >>>> >>>> Is there a one liner on mobile that can give me the direction, or >>>> true/false, or l/r/u/d? >>>> >>>> ~Roger >>>> _______________________________________________ >>>> use-livecode mailing list >>>> use-livecode@lists.runrev.com >>>> Please visit this url to subscribe, unsubscribe and manage your >>>> subscription preferences: >>>> http://lists.runrev.com/mailman/listinfo/use-livecode >>>> >>> >>> >>> >>> _______________________________________________ >>> use-livecode mailing list >>> use-livecode@lists.runrev.com >>> Please visit this url to subscribe, unsubscribe and manage your >>> subscription preferences: >>> http://lists.runrev.com/mailman/listinfo/use-livecode >>> >> >> Dr Terry Judd >> Senior Lecturer in Medical Education >> Medical Education Unit >> Faculty of Medicine, Dentistry & Health Sciences >> The University of Melbourne >> >> >> >> >> >> >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your >> subscription preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode >> > > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > Dr Terry Judd Senior Lecturer in Medical Education Medical Education Unit Faculty of Medicine, Dentistry & Health Sciences The University of Melbourne _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
