Difference between revisions of "Location 542"

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Revision as of 16:14, 19 November 2015

Project description

Android Coordinate picker

This project's goal is to improve upon the existing DHIS2-android applications by expanding their common SDK to include support for use of Google Maps. In the existing DHIS2-android apps location selection is limited to only capture the coordinates where the user is located, which features no map interaction at all. This project will implement functionality such as having a map based point-and-click coordinate selector for TrackCapture- and EventCapture apps, among others, so the user can specify coordinates without being in that location.

Where the DHIS2 android application previously have only utilized the on-device GPS by clicking a button for obtaining the user location and storing it, we want this button to open a Google Maps fragment with the ability to place markers that indicate the desired location. The map should be launched with a marker that point to the user's location by default, but which can be moved by clicking the map and be saved when the user clicks save. 

More information

http://www.uio.no/studier/emner/matnat/ifi/INF5750/h15/group-projects/coordinate-picker/index.html

Group members

  • Andreas Oven Aalsaunet
  • Erik Vesteraas
  • Yaron Okun
  • Øyvind Johansen Amundrud

Architecture / technology

Tools

  • Android Studio
  • GitHub

Languages

  • Java
  • XML

Link to Git Repos

https://github.com/evestera/dhis2-android-sdk

https://github.com/evestera/dhis2-android-trackercapture

https://github.com/evestera/dhis2-android-eventcapture

Link to sample android app

Summary of Requirements

Functional requirements

The user should be able to...

  • Choose his own location without loading map
  • See a map of his surroundings
  • See his own position on the map
  • Navigate by interacting directly with the map
  • Zoom in and out of the map
  • Click on the map to get the coordinates for that position
  • Leave the map
  • Cancel location choise
  • Easily get back to his own position on the map
  • See the coordinates for a chosen location

Non-functional requirements

Screenshots and screen flows

First lo-fi prototypes 1
First lo-fi prototypes 2

Documented learning during project

General Android development

Knowledge about the DHIS2 system

Collaborating as a diverse team

Suggested improvements to API

The GPS coordinates should be stored in a different format in the database. The format should also be consistent for all applications that use such coordinates. As per now, the coordinates in the Tracker Capture app are stored as strings, and the coordinates in the Event Capture app are stored as doubles, or floats. A more apropriate postgresql format would be for example GeoData.

Time schedule

Milestone 1: November 8th 

Task Status Comment
Document features and architecture on Wiki
Obtain understanding of DHIS2 android app
Look into Google Maps API
Set up development environment

Milestone 2: November 22th 

Task Status Comment
First bare-bone version of coordinate picker

Milestone 3: December 4th 

Task Status Comment
Finished, if applicable also with mobile app.

Final delivery: December 11th

Presentation: mid December

Login android:

Android 4

Android 5

All:

  • Username: android
  • Password: Android123

Log

03.11.2015

  • Set up the Wiki
  • Fork of the dhis2-android-sdk
  • Installed Android Studio
  • Tried to get Android Studio to work
  • Tried to understand SDK

05.11.2015

  • Got Android Studio to work
  • Explored existing code base
  • Updated the Wiki
  • Consulted with a DHIS2 Android developer
  • Made the first UI design sketches

11.11.2015

  • New fragment for picking coordinates
  • Integrate google maps API
  • More UI design

12.11.2015

  • Uploaded first low-fidelity prototypes
  • Making Google Map appear in eventcapture
  • Fixed Google Play Service dependancies

16.11.2015

  • Enable back button on activity bar

17.11.2015

  • Adding ok and cancel buttons and interaction to coordinatePickerFragment.
  • Changing button design to follow conventions
  • Bug fixing
  • App working with map and buttons
  • Successfully get coordinates by usin buttons

18.11.2015

  • Ran in to issues with android technical limitations when using Google Play services
  • Working on solving issue
  • Misc bugfixing

19.11.2015

  • Investigated architectural structure of TrackerCapture
  • Removed ActionBar when showing CoordinatePicker
  • Focus map on location of user, or existing coordinate data