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  1. #1
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    May 2007
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    Question Questions about GPS-developing

    Hi! Im trying to get some answers for some questions since i haven't developed anything for a mobile device before and dont really know what these devices can handle.

    Im working for a transport company that's about to develop a solution for managing transports of small containers. Our idea is to develop a mobile solution for a gps-phone, and we are currently thinking about using the upcoming Nokia 6110 Navigator as the phone to use for this.

    Our idea is for the phone to connect to a webserver to receive an order about what to pick up. The order should include a position which should be displayed on the phones gps.

    Is it possible to create an application that combines the phones built in-gps and mapsystem and data fetched from a webserver? To be able to create our own waypoints? Perhaps divide the interface into two tabs, where one tab contains the map and the other information about the order. And is Java the best and easiest way to do this?

    I welcome answers and suggestions
    /Johan

  2. #2
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    Apr 2003
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    62

    Re: Questions about GPS-developing

    The maps application that is pre-installed on the phone is a native C++ Symbian application and you cannot use its' resources from a Java MIDlet. They are separate applications and direct UI integration between them is impossible.

    Java MIDlets have access to location information (the phone's current GPS position and read/write access to coordinates saved into the phone's landmark store) through the additional APIs defined in JSR 179. So you can write a Java MIDlet that retrieves the phone's current position. But in order to plot the position on a map you need access to some map graphics, you cannot directly use the imagery that the native Symbian maps application uses.

    What you could do is write a Java MIDlet that retrieves coordinates from a web server and saves the coordinates in the landmark store of the phone. Then the user must switch to the Nokia maps application and view the landmarks on the map and use the Nokia maps application to navigate there.
    Last edited by knorring; 2007-05-29 at 21:33. Reason: typo, some rewording

  3. #3
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    May 2007
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    2

    Re: Questions about GPS-developing

    That sounds like a reasonable solution, as long as its possible to switch between the apps and not having to close one of them down, but this is no problem i guess?

    Thanks very much for your answer.

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