AS3-调用外部Javascript

Question

I'm trying to pass the geolocation over Javascript to Flash. The .SWF is embedded in a HTML site and set to AllowScriptAccess="always" . For some reason the getGEO() function is not receiving the call.

JS:

<script>
        function getGEO()
        {
         alert("getGEO");
            if (navigator.geolocation)
            {
                navigator.geolocation.getCurrentPosition(function(position)
                {
                    lat = position.coords.latitude
                    long = position.coords.longitude;
                    passGEOToSWF(lat, long);
                });
            } else {

            }
        }

AS3:

if (ExternalInterface.available) 
{  
    try 
    {
        ExternalInterface.call("getGEO");
        ExternalInterface.addCallback("passGEOToSWF", onPassGEOToSWF);
    } 
    catch (error:SecurityError) 
    {
    } 
    catch (error:Error) 
    {
    } 
}

function onPassGEOToSWF(lat:*,long:*):void
{
    trace(lat,long);
}

What do I miss here?

Answer 1

You've got:

ExternalInterface.call("getGEO");
ExternalInterface.addCallback("passGEOToSWF", onPassGEOToSWF);

You may want to try:

ExternalInterface.addCallback("passGEOToSWF", onPassGEOToSWF);
ExternalInterface.call("getGEO");

The external JS call may be completing before the AS3 registers the callback.

---

In order to get a reference to the flash movie, which you need in order to call the AS3 callback, you need a function like the following ( source )

function getFlashMovieObject(movieName){
    if (window.document[movieName]){
        return window.document[movieName];
    }
    if (navigator.appName.indexOf("Microsoft Internet")==-1){
        if (document.embeds && document.embeds[movieName])
            return document.embeds[movieName];
    }
    else{
        return document.getElementById(movieName);
    }
}

Once you have that reference, you can call the AS3 callback. Here's an example:

function SendDataToFlashMovie(lat, long){
    var flashMovie=getFlashMovieObject("main_flash");
    flashMovie.passGeoToSWF(lat, long);
}