[mono-android] maps - I'm doing something wrong

[Wally McClure]

Thanks Jon.  Right now, I'm able to run this code properly on a device.  It is not running in the emulator, same error with a null in the map_view.  I do have location setup properly in the emulator since it seems to detect my location properly in other apps in the emulator.  Any other ideas?

Wally

> From: jonp at xamarin.com
> Date: Wed, 9 Nov 2011 20:54:45 -0500
> To: monodroid at lists.ximian.com
> Subject: Re: [mono-android] maps - I'm doing something wrong
> 
> On Nov 9, 2011, at 6:57 PM, Wally McClure wrote:
> > I've got the code below.  I have a "real" key determined from the machine that I am running on right now (I know because I just recreated it).  The problem that I am running into is that the map_view is sometimes null and sometimes not.  Has anyone else seen this behavior?
> 
> I'm betting it's a threading problem:
> 
> 	http://code.google.com/android/add-ons/google-apis/reference/com/google/android/maps/MyLocationOverlay.html#runOnFirstFix(java.lang.Runnable)
> 
> 	"as soon as we get a location fix, we'll run it in in a new thread"
> 
> Which means this:
> 
> > location_overlay.RunOnFirstFix(delegate
> > {
> >     map_view.Controller.AnimateTo(location_overlay.MyLocation);
> > });
> 
> may invoke `map_view` from the wrong thread. Try changing it to:
> 
> 	location_overlay.RunOnFirstFix (delegate {
> 			RunOnUiThread (() => map_view.Controller.AnimateTo(location_overlay.MyLocation));
> 	});
> 
>  - Jon
> 
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