Location API & Class

[blundell]

Hey guys trying to create a GPS application that tracks your movement as you walk, i've successfully created this as a free standing midlet, however when i'm now trying to port it into another one of my midlets i'm getting this error:

java.lang.NoClassDefFoundError: Expected an initialized class

I believe its coming from the line

Code: Select all

try {
            if(provider == null) {
               Criteria crit = new Criteria();  //HERE java.lang.NoClassDefFoundError: Expected an initialized class
               provider = LocationProvider.getInstance(crit);
               provider.setLocationListener(this, -1, -1, -1);      
            }
          }
         catch (LocationException e) {
            e.printStackTrace();
            provider = null;
          }


I found an old forum post sayin it was something to do with the the lapi.jar file and a class path problem?
http://www.velocityreviews.com/forums/t142389-cannot-create-an-instance-of-locationcriteria-class-lapijar-midp-20-j2me.html

I'm using eclipse dev, any ideas?

Please reply in the most lamens terms you can, I dont want to keep saying huh?!

thanks for your time and effort! just ask if you need more info

[blundell]

bump

[DevelopmentTeam]

1) If you are testing it on emulator, you have to check if the emulator version supports location API and check if you have added the library in the midlet properties.
2) If you are testing the application on real device, do check if the device has support to JSR-179.

These are the 2 probable issues from what I understand, once we make sure both these are not the problem, lets try to dig further.

[blundell]

Hey my man thanks for the heads up! I had already checked my emulator twice!!! but since ur reply i checked again, an eureka!! Sony erikson v.7 doesnt support location api but verison 8.0+ does et voila, its working thanks

[DevelopmentTeam]

Ah, nice that you posted the info here. Thanks and keep working... Happy coding...