Trying to resend this reply as I think it may not have gone through the first time...
Steve On Thu, Jun 24, 2010 at 11:24 AM, Steve Howard <[email protected]> wrote: > I think the ideal usage would be something like this: > > public boolean onTap(GeoPoint point, MapView mapView) { > // first, let the superclass check if the event hit a marker; if so, > it'll call onTap(index) > // if it returns true, that means onTap(index) returned true, > meaning the event has been handled already > if (super.onTap(point, mapView)) { > return true; > } > > // the event wasn't handled as a tap on an existing marker, so let's > add a new marker > addNewMarkerAt(point); > return true; > } > > public boolean onTap(int index) { > // an existing marker was tapped > // ...display info by whatever means are appropriate... > return true; // indicate that we've handled this tap, and it > shouldn't propagate to other potential handlers > } > > You can override both, but the key is to call the superclass > implementation of onTap(GeoPoint, MapView) and examine its return > value. > > Let me know if that helps. > > Steve > > > On Thu, Jun 24, 2010 at 9:57 AM, Carlos Silva <[email protected]> wrote: > > On Thu, Jun 24, 2010 at 17:49, TreKing <[email protected]> wrote: > >> > >> On Jun 15, 9:15 am, tfriest <[email protected]> wrote: > >> > Does anyone know of a better way to do this? > >> > >> As you've seen, the maps documentation is pretty pathetic. What I know > >> of the onTap functions has been gleamed from trial and error and > >> experimentation. This is how I believe it works: > >> > >> onTap(int) determines whether the item at the specified index will > >> handle tap events at all. If you return false, the other onTap > >> function will always return false. > >> > >> onTap(Point, MapView) determines whether an item in the overlay was > >> tapped given the touch point, if onTap(int) return true for it's > >> index. > >> > >> OK, with that, what you can do is: > >> return true for onTap(int) always. > >> in onTap(Point, MapView) call through to the base implementation to > >> determine if something was tapped. And that's it. > >> > >> public boolean onTap(point, mapview) > >> { > >> boolean tapped = super.onTap(point, mapView); > >> if (tapped) > >> showInfo(); > >> else > >> dropNewItem(point); > >> > >> return true; // irrelevant if you only have one itemized overlay > >> } > >> > >> Hope that helps. > >> > >> -- > >> 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]<android-developers%[email protected]> > >> For more options, visit this group at > >> http://groups.google.com/group/android-developers?hl=en > > > > > > I don't really agree with this. > > I use onTap(int) to detect if an overlayItem was clicked. And use > > onTap(point, mapview) to handle every other click on the map. I use the > > first to show a ballow, and the second to hide it. > > > > -- > > 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]<android-developers%[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
