Working with Geocortex Viewer for HTML5 on Smartphones, Tablets
Is it possible to use Geocortex Viewer for HTML5 on Smartphones, Tablets offline?
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Hello Nihal,
Yes. The Geocortex Viewer for HTML5 development team has put a significant amount of effort towards ensuring that our HTML5 viewer technology can run in offline/disconnected environments. At version 1.1, support for running applications offline is available at the "API level". This means that developers can create applications that work offline by programmatically interfacing with the API. As of 1.1, there are no out-of-the-box features that make it possible to use the viewer offline without programming.
We are currently working on version 1.2, and the 1.2 release will introduce new features for administrators to easily provision applications for offline use. Provisioning for offline use involves packaging up the application files (HTML/CSS/JavaScript), and the associated map data (tile caches and feature layers) so that they can be downloaded and stored on smartphones and tablets. In other words, as of 1.2 it will be far easier for organizations to create applications that work both online and offline.
When working with applications offline, it is important to recognize storage limitations imposed by HTML5 storage APIs. Technically speaking, HTML5 limits our use of local storage to 5MB (which is not enough for most map tile caches). Therefore, when working with smartphones and tablets, our Geocortex Viewer for HTML5 technology uses PhoneGap (http://phonegap.com/) to access large amounts of device storage. This may have implications for organizations who are looking to work with a purely web-based application since PhoneGap involves app deployment. As of version 1.2 we are ensuring PhoneGap support on iOS (iPhones and iPads). In the short term future, we will also ensure PhoneGap support for Android.
I hope this answers your question.
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Drew0 -
Hi Drew,
I am currently working on a project as a contratcor for one of you customers and we are doing a technology PoC where we evaluating different development approaches like using ESRI SDKs or GeoCortex. Can you provide me detailed information of how we can use PhoneGap with GeoCortex?
Regards
Stefan
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Hey Drew,
I would also appreciate any information, about using phonegap/cordova with geocortex. Any tutorials or documentation?
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Cordova is capable of running just about any JavaScript/HTML application you load into it. You can easily point it at an HTML5 viewer and the viewer will happily run inside of it. Any custom modules you develop will have access to the Cordova APIs.
You may wish to talk to your account manager about the Geocortex Mobile App Framework. It's our mobile offline solution, it uses Cordova on iOS, and it's capable of taking applications offline for the purposes of data collection and editing, and it supports offline basemaps (including imagery).
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