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How to call a function from a different frame using ActionScript 2.0?

开发者 https://www.devze.com 2023-04-12 08:23 出处:网络
I am looking for a way to call a function defined in a different frame in ActionScript 2.0. The details are as follows:

I am looking for a way to call a function defined in a different frame in ActionScript 2.0. The details are as follows:

As a button event in frame 1, I have:

on (release)
{
   _root.gotoAndStop(2); //Going to Frame 2.
   selectVideo(5); //Calling a function defined in Frame 2. 
   //Calling this function is not working in the way i wrote it above. 
}

On Frame 2, I have the following script on the frame itself:

var vlist:XML = new XML(); //Creating an XML variable
vlist.ignoreWhite = true; //Ignoring the white spaces in the xml
vlist.load("videoList.xml"); //Loading a list of videos from the xml.

vlist.onLoad = function() 
{
   var videos:Array = this.firstChild.childNodes;
   for (i = 0; i < videos.length; i++)
   {
      vidList.addItem({label:videos[i].attributes.desc, data:videos[i].attributes.url});
   }

   vid.load(vidList.getItemAt(0).data);
   vidList.selectedIndex = 0;

   //Notes:
   //vid: is an instance of (FLVPlayback) component. 
   //vidList: is an instance of a (List) component. 
};

function selectVideo(index:Number) 
{
   //Here is the function that i want to call from frame 1 but it is not getting called.
   vidList.selectedIndex = index;
}

var 开发者_StackOverflow社区listHandler:Object = new Object();
listHandler.change = function(evt:Object)
{
    vid.load(vidList.getItemAt(vidList.selectedIndex).data);
};

vidList.addEventListener("change",listHandler);

For some reason, the code on frame 2 is working by itself but selecting an index from the list from another frame is not working. In other words, I am not able to successfully call selectVideo() from frame 1 while it is defined in frame 2.

The objective of the program, as implied, is referring to a certain video from the list from a different frame. The whole code is working without errors, I'm just not able to select a video from the list and play it if it was initially in a different previous frame.

Any ideas, suggestions or solutions are highly appreciated! Thanks in advance for your help!


first: timeline scripting is a mess, try using classes instead.

you could try and set a variable on _root. something like _root.nextIndex = 5; and then change the frame to 2.

on (release)
{
   _root.nextIndex = 5;
   _root.gotoAndStop(2); //Going to Frame 2.
}

then either call the function and pass it the _root.nextIndex or remove the function completely and just do the

vidList.selectedIndex = _root.nextIndex;

outside of any function.


This is the quick fix for your code (you were lacking the _root to access the main timeline on the function call):

on (release)
{
   _root.gotoAndStop(2); //Going to Frame 2.
   _root.selectVideo(5); //Calling a function defined on the timeline in Frame 2. 

}

But I would try to follow pkyeck's advice and try to limit the script added on different frames in the timeline, as it can get really messy.

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