I am aware of the last know location returning null. As for my code using GPS, the book that I learnt geo services said that this shouldn't happen. Seems they were wrong.
Coming back to the point. Is there any way to make sure that the app does not use GPS? That is even if GPS is on the app only uses the cell network? The whole point of my app was to provide the location without the GPS being used. Can I set the provider of the location? Thanks On Thu, Jul 7, 2011 at 7:06 PM, Mark Murphy <[email protected]> wrote: > On Thu, Jul 7, 2011 at 9:28 AM, Raghav Sood <[email protected]> wrote: > > I have a app that triangulates the users location and displays it on a > map > > without using the GPS. As long as the GPS is off the app does its job > > perfectly. The moment someone turns the GPS on the app force closes and > > gives a NullPointerException on line 37 of MyPositionOverlay which is > given > > above. If needed I am willing to share the source code for the entire > > project as there is nothing special in it. It is attached with this mail. > > I would like this group's help on the fact as to why the app force closes > > when the GPS is turned on and how do I fix it. The app does not use the > GPS > > at all. > > First, your overlay's location data member will be null sometimes, the > way this is written. getLastKnownLocation() can return null at any > time, and in that case, you don't have a Location to work with. You > will need to either add intelligence to the overlay to handle this > case, or not set up the overlay until you have a Location. > > Second, you are using GPS, the way this is written. More specifically, > you are using the Criteria system, which will return GPS as a possible > provider. Given your specific Criteria setup, if GPS is available, it > probably is the best provider. > > -- > Mark Murphy (a Commons Guy) > http://commonsware.com | http://github.com/commonsguy > http://commonsware.com/blog | http://twitter.com/commonsguy > > Android Training...At Your Office: http://commonsware.com/training > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Raghav Sood http://www.raghavsood.com/ http://www.androidappcheck.com/ http://www.telstop.tel/ -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
