[Mono-bugs] [Bug 672845] New: Activity implementing ILocationListener and Camera.IPreviewCallback causes NullReferenceException

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Wed Feb 16 19:14:43 EST 2011



           Summary: Activity implementing ILocationListener and
                    Camera.IPreviewCallback causes NullReferenceException
    Classification: Mono
           Product: MonoDroid
           Version: SVN
          Platform: 64bit
        OS/Version: Windows 7
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Class Libraries
        AssignedTo: mkestner at novell.com
        ReportedBy: leonardo at torqsoftware.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---

Created an attachment (id=414563)
 --> (http://bugzilla.novell.com/attachment.cgi?id=414563)
Sample project

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US)
AppleWebKit/534.13 (KHTML, like Gecko) Chrome/9.0.597.98 Safari/534.13

I've created a simple app that implements ILocationListener,
ISurfaceHolderCallback and Camera.IPreviewCallback.
When the OnLocationChanged event is fired, a NullReferenceException is thrown
on the get method of the new location.Longitude or location.Latitude (based on
the call stack). 

The application was tested on a HTC Desire (2.2) and a HTC Google Nexus One
(2.2.2) using MonoDroid Preview 12.

Removing the Camera.IPreviewCallback implementation will remove this error.

Please advise.

Reproducible: Always

Steps to Reproduce:
1. Run the sample project.
Actual Results:  
Throws a null reference exception on the OnLocationChanged event.

Expected Results:  
GPS values updating.

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