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RALLY: ANDROID LOCATION BASED SERVICES WITH GOOGLE MAP INTEGRATION

CONTENTS Introduction What is Rally?Why Android ?Android ArchitectureLocation Based Services (LBS)Android location APIGoogle Maps Android APIAndroid RallyConclusion

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INTRODUCTIONRALLY is based on Google map’s integration and

location based services in AndroidIts working model is gaming concept based on user

locationThe application runs on top of Google mapsTracking user location is important part of this projectPlayer is presented with set of markersThese markers can be followed in two differents ways:

Automatic and Custom

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WHAT IS RALLY?

It is team application The team has to join points in order or not depending on

the modes they chooseAll points are located on the Google MapsEach path represents as the joining of points on maps

either ordered or unordered All points are selected on the mobile deviceNOTE: The application can be client/server but for now it is

android only

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WHY ANDROID ?Android is one of the most used OS for smart phones

over 1.4 billion devices running.Its platform is of open system architecture with versatile

development and debugging environments.It offers rich graphics systems It supports GPS, video camera, compass, 3d-

acceleromrter and provides rich API’s for map based location services.

Users can access, control, process Google map and implement location based services at low cost.

It follows a software stack architecture .

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ANDROID ARCHITECTURE Its basically described by a software stack model :Linux Kernel: android relies on linux kernel for core services such as memory/process management, security and driver modelLibraries: include set of C/C++ libraries used by various android system componentsAndroid Runtime: provides set of core libraries that provides most of functionality Application Framework: includes all the application in the form of services such as Activity manager, Location manager. Applications: basic core apps on top framework eg. SMS

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LOCATION BASED SERVICES (LBS)

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LBS is software-level service that uses location data to control features.

There are two ways to track mobile device’s location: Communication Network (Eg. WiFi) and GPS In our project we used GPS based service to track user

location and show it on the Google Map.

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The above components work together to form a whole network that is utilized to find the user location. GPS providers facilitate geo-specific functionality of LBS including map information, visualization and directory services.

ANDROID LOCATION API

Android has the location package that contains all the functions used for getting geo location of user.

Functionalities and classes that we have used in our project are represented in this table.

Class Name Functionality

Location It is a data class representing a geographical location

LocationManager Class provides access to the system location service

LocationProvider Abstract super class for location providers

LatLng Class describes location in form of longitude and latitude

GpsStatus Represent current state of GPS engine

GpsSatellite Represents current state of GPS satellite

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GOOGLE MAPS ANDROID APIIt is a mapping service developed by Google.It offers satellite imagery, street maps, 360° panoramic

views of streets (Street View), real-time traffic conditions (Google Traffic), and route planning

Maps are represented in the API by GoogleMap and MapFragments

 API automatically handles access to Google Maps servers

Also facilitates data downloading, map display, and response to map gestures

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OBJECTS OF MAPS API

Icons anchored to specific positions on the map (Markers)

Sets of line segments (Polylines).Enclosed segments (Polygons)Maps API KEY is needed by the application to connect

with Google Maps APIYou can put restrictions for access on the API keyGetting an API key is simple process by creating it

through Google’s developer console

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ANDROID RALLYProject “Rally” is based on the location based gaming concept like “Pokemon Go”•It includes the Google Maps to show user location•And GPS to track the changing user’s location•The application includes two modes•Automatic mode: markers and path both are given to follow•Custom mode: only markers are given

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BASIC ARCHITECTURE OF RALLY

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THE MAIN SCREEN OF RALLY

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ADMIN FUNCTIONALITYThe Admin is responsible for selecting the positions for the

RallyAfter the selection these points are send to Automatic and

Custom activitiesThe points are send in ordered manner to Automatic

activityPoints are send unordered manner to Custom Activity

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ADMIN SCREEN

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AUTOMATIC FUNCTIONALITY

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The selected points appear with the path that the user must follow in the rally

In this mode user have to directly follow the points given by the Admin

Start represented by green color

Destination represented by blue colour

CUSTOM FUNCTIONALITY

Here the points selected by the Admin are shown

But without the path to follow

The user can follow any path he wants

But all points should be traversed

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CONCLUSIONOur project is a demonstration of Google MapsOur application satisfies the objective of our projectThis application though very simple in working but can

be engaging and provides you with a different aspect of looking at the android games.

FUTURE SCOPEThis application can be moved to client/server application

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