release_notes.txt

这是一个关于s60基于c++的关于手机地图和定位的代码

S60 Platform: Location Example
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This C++ code example implements a practical use case of location-based services. 
The example demonstrates a use case of asking the GPS location of another device 
via SMS and showing its location and the distance to it. 


Prerequisites
-------------
Understanding the basics of C and Symbian C++.


Important files
---------------
clocationexamplesmsengine.h:
- SMS sending and receiving, SMS API

clocationexamplepositionrequestor.h
- Location listening, Location API

clocationexamplemapengine.h
- Showing your friend's location in textual format 
- Calculating the distance and direction of your friend (e32math.h)

clocationexamplecontainer.h
- Container class of the view


Running the example
----------------------------

Start the LocationExample. 
Selecting GPS from the Options menu either starts the built-in GPS if available in the device or launches the Bluetooth device selection UI to find and connect to an external GPS receiver.
After the position has been retrieved, more commands appear in Options->GPS: It is possible to close the GPS, or use SMS to send your location or ask for another device's location.
Once both the own and another device's location have been retrieved, the application shows the distance and direction compared to the other device.

When requesting a friend抯 location, the Location example needs to be installed and running on the remote device. In addition, the user's permission is needed to send the coordinates.


Compiling to hardware
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cd Location_Example\group
bldmake bldfiles
abld build gcce urel


Signing
---------------------
Location capability does not work with a self-signed certificate, so a developer certificate 
(or better) is needed for signing. You can obtain it from www.symbiansigned.com. After the 
key generation process, you have the following files: certificate.key, certificate.cer. 
Save them in the sis folder and then:

cd Location_Example\sis
makesis locationexample_gcce.pkg
signsis mapexample_gcce.SIS locationexample_gcce.sisx certificate.cer certificate.key YOUR_PASSWORD

Install the generated locationexample_gcce.SIS file to your device.

Emulator
------------------
cd Location_Example\group
bldmake bldfiles
abld build winscw udeb

Start the emulator and then the LocationExample application.

Compatibility
-------------
S60 3rd Edition, Feature Pack 1
S60 3rd Edition

Tested with the Nokia 6110 Navigator, Nokia E90, and Nokia N95.
Developed with S60 3rd Edition SDK for Symbian OS, for C++, Maintenance Release 

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