Titanium - Webview is not rendered when is loaded by async callback - asynchronous

Question

I have loop that for each item that call a async request to server, create a view with a webview for later add in a scrollview after calc the positions. In the callback, I get the server data and give to webview.
When the load method takes a little longer to perform (In a slow connection, for example), the webview is not rendered.
This happens many times in the device, but few times in the simulator. But, to simulate easily, just put a breakpoint in the load method, delaying the execution.
I suspect that there is a problem when rendering an already added webview.
I simplified the code in a one block for better understanding:
function createView(){
var view = Ti.UI.createView({
//...
});
var webview = Ti.UI.createWebView({});
view.add(webview);
//Callback to process webview content after receive the server data
view.load = function(serverData){
webview.setUrl(serverData.url);
webview.addEventListener('beforeload', function(){
webview.evalJS("var value="+serverData.value+";");
});
};
return view;
};
var views = new Array();
for(i=0;i < data.length;i++){
views[i] = createView();
//Async request to server
var req = Ti.Network.createHTTPClient();
req.onload = function(){
result = JSON.parse(this.responseText);
views[i].load(result);
}
req.open("POST", "http://myserver.com.br/myservice");
req.send({myParam: data[i].value});
}
var scrollView = Ti.UI.createScrollView({
//...
});
for(i=0;i < views.length;i++){
//Calc the positions, not relevant
views[i].width = calculedValue;
views[i].height = calculedValue;
scrollView.add(views[i]);
}
win.add(scrollView);
Im using Titanium SDK 1.8.2 and running on iPad 2 with iOS 5.0.1.

Answer 1

I solved the problem evaluating the javascript data on the callback instead of on event listener
view.load = function(serverData){
webview.setUrl(serverData.url);
//Not on event 'beforeload'
//webview.addEventListener('beforeload', function(){ not on
webview.evalJS("var value="+serverData.value+";");
//});
};
I think that this is related with the UI thread is not called sometimes on event listener