It happens to me as well. I did try to put this variable in flash coding, but I need try {} catch to be able to test in flash builder otherwise it crash with no error appear.

try {

    NativeApplication.nativeApplication.executeInBackground = true;

} catch (e:Error) {

} //Without try catch.. Flash builder crash at this line with no error notification. But in iPhone4 without try catch it runs fine

However, when I test my application in iPhone4 iOS 5.01, I got nothing when the app is in background (I tested by firing post variable via url loader to server with enterframe event 40-50 frame once, and  by add location update event listener to Geo object also).

I think the problem is <executeInBackground>true</executeInBackground> which is added to <iPhone> tag in app.xml can't be compile by flash builder.

note: I've also changed application description to air 3.3

<application xmlns="http://ns.adobe.com/air/application/3.3">

and added location service in

<InfoAdditions><![CDATA[

                              <key>UIDeviceFamily</key>

                              <array>

                                        <string>1</string>

                                        <string>2</string>

                              </array>

                              <key>UIBackgroundModes</key>

                              <array>

                                        <string>location</string>

                              </array>

  ]]></InfoAdditions>

The same here. Tryed this:

<iPhone>

        <InfoAdditions><![CDATA[

                              <key>UIDeviceFamily</key>

                              <array>

                                        <string>1</string>

                                        <string>2</string>

                              </array>

                              <key>UIBackgroundModes</key>

                              <array>

                              <string>location</string>

                              </array>

  ]]></InfoAdditions>

  <requestedDisplayResolution>high</requestedDisplayResolution>

  <executeInBackground>true</executeInBackground>

</iPhone>

Got this:

Error occurred while packaging the application:

/private/var/folders/hS/hSnReJAjFeuPVy-AYoffRE+++TI/-Tmp-/AOT133495998 3779/NativeiOSMaps-app.xml(271): error 103: application.iPhone.executeInBackground is an unexpected element/attribute

Thansk for the reply Romil.

That is what I thinked. But

NativeApplication.nativeApplication.executeInBackground = true;

dispatches a runtime error.

It seems to be impossible to get the app running in background throwing the user location.

Do you have any working example?

Thanks Gang. It worked now. But it was for another reason.

I am building an App that uses a Native Extension of GoopleMaps iOS API.

( http://code.google.com/p/air-maps-ane/ )

I was relying on the Native GPS event. And I am pretty sure it doesnt work in background doesnt matter how you set your app descriptor.

When I switch to as3 Geoloaclization events, it just started working.

Do you know if there is any conditions to use the background behavior with Native Extensions?

Yeah, I am sure.

It works perfectly when I use Flash Geolocation event.

But when I rely on the Native GPS event from the Native Extension, the GPS arrow simbol disapear at the very moment I get out of the app.