16-06-2014, 04:55 PM
Android applications
[attachment=64948]
Initial setup:
The initial setup for using the android platform has been done on both Windows and Linux
machines. We are using Eclipse IDE along with Android Development Tool (ADT) plugin.
Android applications can be easily developed and debugged using ADT. We tested our initial
setup by running a simple “Hello, World” program.
Application Signing:
All the Android applications needs to be digitally signed else they won’t be installed on emulator
or mobile device. There were some problems related to this since some of the required
environment variables were not set. Those problems are fixed now.
Android Maps API key is required to access and embed the Google Maps in our Android
application. This signing has been done. A single Maps API key is valid for all the applications
of ours.
Implementation Details:
We are able to create the Google map and show it on the screen. Also the user’s current location
is shown on the map. Some of the important classes that are accessed are as follows:
android.view: This class exposes the UI classes which are required to handle the screen layout of
the map and the interaction that the user does with it.
com.google.android.maps: Our application displays and controls the Google map using this
package. We have used MapView class to display the map on the screen, MapController utility
class to handle the zooming and panning of the maps and GeoPoint which represents the
longitude and latitude of the user.
android.location: This is used to access the location services which are used to identify the
current location of the user. We have used the Location class which represents the location of the
user sensed at a particular time. We use the getLatitude( ) and getLongitude( ) API’s to obtain
the latitude and longitude of the users current location. The access to system location services is
obtained through LocationManager class.
Future Implementation:
We need to implement the GUI consisting of buttons/text boxes which are required for selecting
the locations and specifying an ordering among them. An algorithm has to be developed which
takes these locations as inputs and find the optimal route between them. Then the routes between
these are shown on the Google map and with the help of location API’s it can be used as GPS.
[attachment=64948]
Initial setup:
The initial setup for using the android platform has been done on both Windows and Linux
machines. We are using Eclipse IDE along with Android Development Tool (ADT) plugin.
Android applications can be easily developed and debugged using ADT. We tested our initial
setup by running a simple “Hello, World” program.
Application Signing:
All the Android applications needs to be digitally signed else they won’t be installed on emulator
or mobile device. There were some problems related to this since some of the required
environment variables were not set. Those problems are fixed now.
Android Maps API key is required to access and embed the Google Maps in our Android
application. This signing has been done. A single Maps API key is valid for all the applications
of ours.
Implementation Details:
We are able to create the Google map and show it on the screen. Also the user’s current location
is shown on the map. Some of the important classes that are accessed are as follows:
android.view: This class exposes the UI classes which are required to handle the screen layout of
the map and the interaction that the user does with it.
com.google.android.maps: Our application displays and controls the Google map using this
package. We have used MapView class to display the map on the screen, MapController utility
class to handle the zooming and panning of the maps and GeoPoint which represents the
longitude and latitude of the user.
android.location: This is used to access the location services which are used to identify the
current location of the user. We have used the Location class which represents the location of the
user sensed at a particular time. We use the getLatitude( ) and getLongitude( ) API’s to obtain
the latitude and longitude of the users current location. The access to system location services is
obtained through LocationManager class.
Future Implementation:
We need to implement the GUI consisting of buttons/text boxes which are required for selecting
the locations and specifying an ordering among them. An algorithm has to be developed which
takes these locations as inputs and find the optimal route between them. Then the routes between
these are shown on the Google map and with the help of location API’s it can be used as GPS.