An ACTION_CANCEL is sent in the case where the user puts their finger down on a ListView item (or similar) and then starts to scroll. Since the ListView is using it as a scroll command and your finger may stay inside the view, it sends this to cancel the touch on your view.
The ACTION_OUTSIDE would be where a view couldn't or won't scroll and the user drags their finger outside the view that received the ACTION_DOWN. Computers do the same with mouse events and it gives the user the ability to "cancel" a click by holding down and dragging outside of whatever they clicked on. Those two actions are why it is usually recommended to perform an action on a mouse/touch/key up instead of down. Steven Studio LFP http://www.studio-lfp.com On Sunday, October 2, 2011 5:28:24 PM UTC-5, John Goche wrote: > > > Thank you Steven for your reply, > > Would you be able to provide some insight on the difference between > ACTION_CANCEL > and ACTION_UP. I am somewhat fuzzy on the concept. Anyways, I'm going to > give it a go. > > Thanks, > > John Goche > > On Sun, Oct 2, 2011 at 11:36 PM, Studio LFP <[email protected]> wrote: > >> You've got it right. >> >> Just make sure you are catching MotionEvent.ACTION_CANCEL and >> MotionEvent.ACTION_OUTSIDE. >> >> Return false in onTouch to allow it to pass to the Click and LongClick, >> but change your colors in the onTouch. >> >> Steven >> Studio LFP >> http://www.studio-lfp.com >> >> - >> You received this message because you are subscribed to the Google >> Groups "Android Developers" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en > > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
