Blueprint for Mobile Clients

We want a versatile client for Mobile devices to be able to talk to Sahana Eden servers which can be easily maintained and adapted to meet new requirements rather than the point solutions which have been developed to date which are unmaintained & not adaptable.

The ideal would be the ability to generate the code using the same core framework and data models. XForms are promising here, although our current XForm interface isn't complete (doesn't handle either Images or Locations) and can only handle data entry, not reporting.

Online

The simplest way to do this is to provide a layout for the web application suitable for smaller screens:

• BluePrint/Mobile/Portal
• BluePrint/CSS

An initial protoype should be developed in static HTML/CSS which can then be ported to Eden.

• download a couple of pages' HTML & CSS & tweak the CSS until it is fully resizable.

Offline

Ideally, though, they should have local storage for use completely offline & then be able to sync back to the server using whatever connectivity becomes available:

• SMS
  • compressed multi-part SMS to get maximal throughput
  • BluePrint/Messaging
  • forms should be updatable via SMS
  • photos should stay offline until the phone has better connectivity, but then the photo needs to be used to update the same record
• GPRS/3G
• WiFi
• BlueTooth
  • J2ME eedocs:
    • tbc
  • Python docs:
    • Intro: ​http://www.devshed.com/c/a/Python/Bluetooth-Programming-using-Python/
    • ​http://lightblue.sourceforge.net/
    • ​http://code.google.com/p/pybluez/

Using the open XForms standard means that we can support handsets using both Android & J2ME.

XForms editor:

• Written in Django, so should be easy to port to Sahana Eden:
  • ​http://github.com/nyaruka/rapidsms-xforms-builder
    • Video walk-through:
      • ​http://www.screencast.com/t/YmYwYjUzMz
      • ​http://www.youtube.com/watch?v=PyjEruT5uoU
• Written in GWT, so includable in Eden as a simple HTML page:
  • ​PurcForms - can import the output from our controller, powerful but not for non-techies!
    • ​Demo
  • ​OX-Designer - more basic, but pretty. No import yet. Built for OpenMRS (which uses ODK)
• Written in Ruby Rack, so harder to integrate as-is:
  • ​http://code.google.com/p/opendatakit/wiki/ODKBuild

XForms can be submitted using SMS by including the encoding format within the XForm so that client & server agree on the encoding:

• ​http://bitbucket.org/javarosa/javarosa/wiki/SMSSendingAPI

Android

• DeveloperGuidelines/Mobile/Android
• UserGuidelines/Mobile - how to use ODK Collect with Sahana Eden

J2ME

Documentation on the current implementation is here: ​http://wiki.sahanafoundation.org/phase2/doku.php/dev:j2meclient

• This needs updating to the latest version of JavaRosa

JavaRosa is a fast-developing framework which uses XForms & ​J2MEPolish:

• ​http://code.javarosa.org
• ​OpenRosa - joint project between ODK & JavaRosa

This supports using Mesh4j to do synchronisation via SMS:

• ​http://code.google.com/p/mesh4x/wiki/SMSAdapter

Alternatives

Another XForms/J2MEPolish client (Xfolite):

• ​https://projects.forum.nokia.com/XFormsJ2ME

KUIX can be used to develop lightweight applications which work across may handhelds & forms can be customised easily via XML/CSS:

• ​http://www.kalmeo.org/projects/kuix

Old, un-maintained J2ME client for the PHP back-end, which just uses XML-RPC (=> requires Internet):

• ​http://wiki.sahanafoundation.org/doku.php?id=dev:sahana_mobile_intro

iPhone

Sahana Software Foundation have a developer license which can be used by anyone interested in developing this.

HTML 5

• ​http://www.ibm.com/developerworks/xml/library/x-html5mobile1/index.html

jQuery Mobile

This has a lot of industry backing for a truly cross-platform solution:

• ​http://jquerymobile.com

Sencha Touch

Cross-platform (Android/iPhone) HTML5 environment based on ExtJS

• ​http://www.sencha.com/products/touch/
• ​http://dev.sencha.com/deploy/touch/getting-started.html

Mapping

OpenLayers now has touch support:

• ​http://m.openlayers.org
• ​http://www.slideshare.net/cedricmoullet/openlayers-mobile-code-sprint-2011

On our map, the Panning/Zooming works already, but Popups cannot be clicked yet.

We'd also like to move the LayerTree to a native-style widget.

ExtMap Touch:

• ​http://www.extmap.com/index.php?pid=2

Taking the Map offline:

• iPhone: ​http://www.offmaps.com

OpenStreetMap on Android:

• ​http://developers.cloudmade.com/projects/show/j2me-lib-android

Google Latitude would make an excellent Mobile Presence tool:

• ​http://googlemobile.blogspot.com/2011/02/check-in-with-google-latitude.html
• ​http://code.google.com/apis/latitude/v1/getting_started.html

Other projects

• ​FrontlineSMS
  • FrontlineForms is a proprietary add-on for FrontlineSMS allowing a mobile Java client to connect to FrontlineSMS and share data with it.
• ​Global Relief Technologies
• Ranked apps for iOS: ​http://ios-disasterapps.ideascale.com/