Changes

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         #Notify when the visibility state changes by calling self._visibleNotifyCb

         # Notify when the visibility state changes by calling self.__visibility_notify_cb

         #(PUT THIS IN YOUR ACTIVITY CODE - EG. THE __init__() METHOD)

         # (PUT THIS IN YOUR ACTIVITY CODE - EG. THE __init__() METHOD)

         self.add_events(gtk.gdk.VISIBILITY_NOTIFY_MASK)

         self.add_events(gtk.gdk.VISIBILITY_NOTIFY_MASK)

         self.connect("visibility-notify-event", self._visibleNotifyCb)

         self.connect("visibility-notify-event", self.__visibility_notify_cb)

     ...

     ...

     #Callback method for when the activity's visibility changes

     # Callback method for when the activity's visibility changes

     def _visibleNotifyCb(self, widget, event):

     def __visibility_notify_cb(self, window, event):

         if (event.state == gtk.gdk.VISIBILITY_FULLY_OBSCURED):

         if event.state == gtk.gdk.VISIBILITY_FULLY_OBSCURED:

             print "I am not visible"

             print "I am not visible"

         elif (event.state == gtk.gdk.VISIBILITY_UNOBSCURED):

         elif event.state in [gtk.gdk.VISIBILITY_UNOBSCURED, gtk.gdk.VISIBILITY_PARTIAL]:

             print "I am visible"

             print "I am visible"

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