I'm writing an app that will be doing queries based on what's currently
viewable in a MapActivity. Currently, I've extended the MapActivity
class and I'm implementing OnZoomListener and setting my activity class
as the listener on the ZoomButtonsController. This works fine when the
zoom buttons are used to zoom in and out, but when using the zoom
gestures, onZoom() isn't getting called, although onVisibilityChanged()
is. The problem is that onVisibilityChanged() is getting called any time
the zoom controls are on screen, and not all map events that trigger the
controls to be visible are zoom events.
So what I'm wondering at this point is simply is there a better way to
find out when the map has been zoomed [in or out]? I would think there
would be some addListener method I could use to receive a zoom event so
that I could do my query based on the MapView
getLatitudeSpan()/getLongitudeSpan() and getMapCenter() functions, but
I'm not seeing any such animal...
Likewise, I would like to know when the map has been panned so I can get
updated information.
Does anyone have a better idea or solution?
Thank you,
Raymond
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