Since I basically can get the same info with both approaches, I'm wondering which is the preferred one and what are the advantages using one over the other?
$cordovaGeolocation is angular wrapper over plain javascript plugin, developed by ionic. Now question is why ngCordova was introduced,in simple words to deal it as plugin service as module and inject plugin wrapper as dependency to only particular controller or service.
On Pratical level, cordova developers were having issues with plugins on angular project. One simple issue was that $scope does not get updated sometimes in simple plugins callback.
Quoting from ionic blog post :
The services support promises to make it easier to deal with their
asynchronous nature and ensure scope data is properly updated.
So my conclusion is, you should go with $cordovaGeolocation.
As far as I remember, on Android that plugin does not do anything at all, and on iOS it prevents the OS asking for access to location over and over.
Overall the plugin totally conforms the html5 specs, so you shouldn't change anything in your calling code (in js) if you use the plugin.
And the plugin has a good documentation here: https://github.com/apache/cordova-plugin-geolocation/blob/master/doc/index.md
It is worth noting that according to the current and oficial documentation (see cordova geolocation doc), there is no need to use $cordovaGeolocation, but rather the global object navigator.geolocation.
is there any update on GWT IndexedDB?
Here are two projects of GWT IndexedDB but i dont know if this is usefull because these two projects seem to be dead?!
http://code.google.com/p/indexeddb-gwt/
http://code.google.com/p/gwt-indexeddb/
IS it possible to use GWT IndexedDB by JSNI? Has anybody experience with it?
Would like to learn and to use IndexedDB but dont know because iam using only GWT and not JavaScript.
Please help!
You can use any pure javascript/browser functaonlity from GWT using JSNI.
If youu look at the above linked Indexdb gwt libraries they do just that. They define JSO Overlay wrappers for the corresponding javascript objects. (see here as an example).
Alternatively you could also look into the Elemental library. I am not 100% sure but it might contain wrappers for IndexDB.
So you have 4 choices:
Manually call the indexdb javascript functons using JSNI.
Write your own wrapper using JSO and JSNI
Use on of the indexdb GWT wrappers
Use Elemental library.
I used java Maps (TreeMap) package to emulate indexedDB searching functions and GWT built-in html5 storage wrapper to store data offline in browser.
I am working with GWT2.3 version.I also found ExtJs4 framework very good and want to club the some of component of ExtJs4 in my application(GWT2.3).So I just want to know it is possible to club components of ExtJs4 with GWT application
Thanks in Adcance
Yes it is. Just add .js source to your public folder in /src. Then you can write custom JavaScript as native methods via JSNI. See more in the docs.
Why not use the GWT compatible project? http://www.sencha.com/products/extgwt/
It has the same widget library (afaik) and integrates quite nicely w/ GWT
Does anyone know of a good selectable grid for gwt google web toolkit? I need this functionality ported over for my application. Just for example I would like it work similar to pfselect for the jquery library.
Thanks,
It is on the way in GWT2.1. Currently milestone version is available. Probably you can give a try. I would suggest not to use smartgwt or ext-gwt. Because at initial page load it downloads lots of javascript.
Please have a look into this
You could look at
GWT Incubator ScrollTable (http://collectionofdemos.appspot.com/demo/index.html)
SmartGWT grid (http://code.google.com/p/smartgwt/)
Ext GWT (from Ext-JS)
I've been trying to get pretty charts to work in GWT on our internal network.
Playing around with GWT-Ext's charts is nice, but it requires flash and is really messy to control (it seems buggy, in general).
I'd like to hear about something that works with the least amount of dependencies and it also must work without a connection to the web (so, Google' charts API isn't a solution).
Edit: Indeed, I would rather a library that is all client-side.
I'm building a GWT chart library based on Flot: http://gflot.googlecode.com
I hope you find it useful. Contact me if you have any questions.
Googling for "GWT +sparklines" has gotten me to gchart, which seems like what I need.
From what I understand - it's all client side and requires nothing more than their JAR file.
Google's charts actually come in two flavours, and one of them does not require interaction with Google's servers - so should satisfy your needs.
Google Image Charts is the API you are thinking of, which is an API on Google's servers that returns images.
Google Interactive Charts is a client side javascript API that renders entirely within the browser: Google Interactive Charts
Google provides a GWT wrapper for the interactive charts: GWT Visualization API
It's not all rainbows and unicorns and you can find chart libs out there that make nicer charts, but it's pretty solid, works on all major browsers and we've been using it successfully for quite a while.
http://code.google.com/p/ext-ux-ofcgxt/ is a nice option if you're using ext-gwt
Do you want something that has a server side component or entirely client driven? The best ones I have seen are all flash, alas. I have done little tricks with JS and GWT before, but there is only sophisticated I will get before I go hunting for a library to do it for me.
There is also "sparklines" - they are available in lots of flavours (very simple charts though).
gchart looks seriously awesome. Go with it !
If you're looking for client-side check out flotr which is based on prototype javascript library or flot which is based on jQuery. Both work well, though flot seems like its got a bigger backing.
If you are willing to go with flash, XML/SWF is a wonderful tool
+1 flot, requires jQuery though, so might not play well with GWT, I haven't used that.
Another flash option, with a pre-built GWT integration - Open Flash Chart / ofcgwt.
I think that gwt-chart is a better framework for you.
well.. i've used yahoo ui chart library (which GWT-Ext uses internally). Pretty neat solution, in the beta stage though.
Let us know the conclusion you arrive at..
There is one open source api for charts in GWT hosted on http://code.google.com/p/gwt-rcharts/ . The API works on SVG/VML specification. You may find it quite easy to implement and use. You may find the demo at http://gwt-rcharts.appspot.com/