I’m sticking to the shared local data solution mentioned in the question using localStorage. It seems to be the best solution in terms of reliability, performance, and browser compatibility. localStorage is implemented in all modern browsers. The storage event fires when other tabs makes changes to localStorage. This is quite handy for communication purposes. References … Read more
Use a class that implements ServletContextListener in your web.xml: <web-app> <!– Usual stuff here –> <listener> <listener-class>com.mycompany.MyClass</listener-class> </listener> </web-app>
A really simple approach could be to use a unique token in your Bookmark-URL which can serve you as a unique device identifier. Example: http://myWebApp.com/?token=randomId29238/1 The token can be generated at the server side at opening time of the application in Mobile Safari and before the user is prompted with the “Add to Home Screen” … Read more
For those who come here in the future, the answer is: If you’ve only copied jackson core and jackson databind, you need jackson annotations to use the ObjectMapper. For example, make sure you have something like this: [16:32:01]:/android-project/libs master]$ ls -lAF total 2112 -rw-r–r–@ 1 jeffamaphone staff 33525 Jun 18 16:06 jackson-annotations-2.0.2.jar -rw-r–r–@ 1 jeffamaphone … Read more
You want to use an Alert. Unfortunately it’s not as nice as with windows forms. ClientScript.RegisterStartupScript(this.GetType(), “myalert”, “alert(‘” + myStringVariable + “‘);”, true); Similar to this question here: http://forums.asp.net/t/1461308.aspx/1
Only simple response headers are exposed when using CORS. Simple response headers are defined here. ETag is not a simple response headers. If you want to expose non-simple headers, you need to set the Access-Control-Expose-Headers header, like so: Access-Control-Expose-Headers: ETag However, note that I’ve noticed bugs in Chrome, Safari and Firefox that prevent non-simple headers … Read more
I would like to eliminate the HttpSession completely You can’t entirely disable it. All you need to do is to just not to get a handle of it by either request.getSession() or request.getSession(true) anywhere in your webapplication’s code and making sure that your JSPs don’t implicitly do that by setting <%@page session=”false”%>. If your main … Read more
definitive solution for startup-image and touch-icons for iPad and iPhone (landscape || portrait) and (retina || not): <!– iPhone ICON –> <link href=”https://stackoverflow.com/questions/4687698/apple-touch-icon-57×57.png” sizes=”57×57″ rel=”apple-touch-icon”> <!– iPad ICON–> <link href=”apple-touch-icon-72×72.png” sizes=”72×72″ rel=”apple-touch-icon”> <!– iPhone (Retina) ICON–> <link href=”apple-touch-icon-114×114.png” sizes=”114×114″ rel=”apple-touch-icon”> <!– iPad (Retina) ICON–> <link href=”apple-touch-icon-144×144.png” sizes=”144×144″ rel=”apple-touch-icon”> <!– iPhone SPLASHSCREEN–> <link href=”apple-touch-startup-image-320×460.png” media=”(device-width: 320px)” … Read more
For accessing the list of all logged in users you need to inject SessionRegistry instance to your bean. @Autowired @Qualifier(“sessionRegistry”) private SessionRegistry sessionRegistry; And then using injcted SessionRegistry you can access the list of all principals: List<Object> principals = sessionRegistry.getAllPrincipals(); List<String> usersNamesList = new ArrayList<String>(); for (Object principal: principals) { if (principal instanceof User) { … Read more
To be more specific, in order for a web application to send push notifications to a mobile device, such as the iPhone, the mobile device must have registered to receive push notifications for a particular application. The registration for push notification is done through a native app and can only be performed through a native … Read more