Auto Refresh the List in Sencha Touch Application

问题

I am developing an simple Chat Application, I can view the updated data when I click on the REFRESH Button, BUT can I refresh the data at a regular interval from the Server (as my Chat is getting Stored in the Database remotely)

Thanks in advance.

回答1:

Use DelayedTask class of Sencha Touch:

//create the delayed task instance with our callback
var task = Ext.create('Ext.util.DelayedTask', function() {
    //load the list's store here. The list will be automatically updated
    listComp.getStore().load();    // Assuming your list component is "listComp"
    listComp.refresh();    

    // The task will be called after each 10000 ms
    task.delay(10000);
}, this);

//The function will start after 0 milliseconds
//so we want to start instantly at first
task.delay(0);

//to stop the task, just call the cancel method
//task.cancel();

This should work for your case.

回答2:

You just need to call your refresh() function at a regular right ?

So you just need to add a setTimeout("refresh()", 1000); at the end of your refresh() function. Then you just need to call it when your app startup.

Hope this helps

回答3:

Maybe you'll be interested in socket server connection in your chat application. Server will notify your clients whenever server data changes. Take a look at http://socket.io/

回答4:

please look at this. It will call the function for every (time you set). http://www.sencha.com/forum/showthread.php?194202-Autorefresh-List-with-DelayedTask

来源：https://stackoverflow.com/questions/9697434/auto-refresh-the-list-in-sencha-touch-application

标签

multithreading

sencha-touch

refresh