I’ve created a SWF Player that loads external swfs from an XML playlist. I am working on adding playback controls. So far, I’ve been able to achieve a working slider component that scrubs the external swf’s timeline. However, it is faulty and the slider thumb doesn’t follow move with the timeline of the swf-it just remains still. What I mean by faulty is that sometimes the slider scrubs the swf timeline and sometimes it fails with this error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at swfPlayerMain/sliderDrag()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at fl.controls::Slider/doDrag()
I think it may have something to do with the order of my code or I need to add an enter frame function. If that’s true, where does it go?
Thanks for checking it out!
The following code is my Document Class (AS3) code:
package
{
import flash.events.EventDispatcher;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.display.Sprite;
import flash.display.MovieClip;
import fl.controls.*;
import flash.display.*;
import flash.xml.*;
import flash.events.*;
import flash.display.Loader;
import flash.net.URLLoader;
import flash.net.URLRequest;
import flash.text.*;
import flash.utils.getDefinitionByName;
import flash.utils.describeType;
import flash.geom.*;
import fl.events.SliderEvent;
import fl.controls.Slider;
import fl.controls.Label;
public class swfPlayerMain extends MovieClip
{
public var swf_x:Number;
public var swf_y:Number;
//my_presentations = toolsXMLList
public var toolsXMLList:XMLList;
//my_total = total_swfs
public var total_swfs:Number;
//presentation_loader = swf_loader
public var swf_loader:Loader = new Loader();
//myXML = swfXML
public var swfXML:XML;
//myXMLLoader = toolsXMLLoader
public var toolsXMLLoader:URLLoader = new URLLoader();
public var slider:Slider = new Slider;
public var sliderLabel:Label;
public var timeline:MovieClip;
public var swf_loader_container:MovieClip;
//add ZOOM and PAN buttons and features
trace("swfPlayerMain_01");
public function setupButtons():void
{
var rotate_btn:rotateBTN = new rotateBTN();
rotate_btn.x = 35;
rotate_btn.y = 168;
addChild(rotate_btn);
rotate_btn.addEventListener(MouseEvent.CLICK, rotateSWF);
var explode_btn:explodeBTN = new explodeBTN();
explode_btn.x = 160;
explode_btn.y = 168;
addChild(explode_btn);
explode_btn.addEventListener(MouseEvent.CLICK, explodeSWF);
var action_btn:actionBTN = new actionBTN();
action_btn.x = 318;
action_btn.y = 168;
addChild(action_btn);
action_btn.addEventListener(MouseEvent.CLICK, actionSWF);
var loop360_btn:Loop_360 = new Loop_360();
loop360_btn.x = 24;
loop360_btn.y = 168;
addChild(loop360_btn);
loop360_btn.addEventListener(MouseEvent.CLICK, loopAction_360);
trace("swfPlayerMain_03");
}
public function setUpSlider():void
{
slider.x = 45;
slider.y = 150;
slider.width = 380;
slider.height = 8;
slider.maximum = 100;
slider.liveDragging = true;
addChild(slider);
trace("swfPlayerMain_04");
}
public function setUpLabel():void
{
sliderLabel = new Label;
sliderLabel.x = 40;
sliderLabel.y = 180;
addChild(sliderLabel);
trace("swfPlayerMain_05");
}
public function configureListeners():void
{
slider.addEventListener(SliderEvent.CHANGE, sliderChanged);
slider.addEventListener(SliderEvent.THUMB_DRAG, sliderDrag);
slider.addEventListener(SliderEvent.THUMB_PRESS, sliderPress);
slider.addEventListener(SliderEvent.THUMB_RELEASE, sliderRelease);
trace("swfPlayerMain_06");
}
public function processXML (event:Event):void
{
swfXML = new XML(toolsXMLLoader.data);
swf_x = swfXML.@SWF_X;
swf_y = swfXML.@SWF_Y;
toolsXMLList = swfXML.SWFS;
total_swfs = toolsXMLList.length();
trace("swfPlayerMain_08");
makeLoader ();
trace("swfPlayerMain_10");
}
public function makeLoader ():void
{
swf_loader_container = new MovieClip();
addChild(swf_loader_container);
//The loaded display object (swf/jpg/png/gif) is added as a child
//of the Loader object
swf_loader.x = swf_x;
swf_loader.y = swf_y;
swf_loader_container.addChild(swf_loader);
trace("swfPlayerMain_09");
//swf_loader.load(new URLRequest (toolsXMLList[0].@ROTATE_URL));
}
public function rotateSWF(event:MouseEvent):void
{
//play loaded swf (target?)
trace("rotateSWF Clicked");
for (var i:Number = 0; i < total_swfs; i++)
{
//XML URL
var rotateURL = toolsXMLList*.@ROTATE_URL;
swf_loader.load(new URLRequest(rotateURL));
swf_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, swf_loaded);
}
}
public function swf_loaded(event:Event):void
{
timeline = event.currentTarget.content;
}
//-----SLIDER START----------------
public function sliderDrag(e:SliderEvent):void
{
trace("Slider dragging: " + e.target.value);
sliderLabel.text = "Slider dragging: " + e.target.value;
timeline.gotoAndStop(e.target.value);
}
public function sliderPress(e:SliderEvent):void
{
sliderLabel.text = "Slider pressed";
}
public function sliderRelease(e:SliderEvent):void
{
sliderLabel.text = "Slider released";
timeline.gotoAndPlay(e.target.value);
}
public function sliderChanged(e:SliderEvent):void
{
sliderLabel.text = "Slider changed: " + e.target.value;
}
//-----SLIDER END-----------------------------
public function explodeSWF(event:MouseEvent):void
{
trace("explodeSWF Clicked");
for (var i:Number = 0; i < total_swfs; i++)
{
//XML URL
var explodeURL = toolsXMLList*.@EXPLODE_URL;
swf_loader.load(new URLRequest(explodeURL));
//continue with movieclip.play or gotoandplay
}
trace("playing new swf");
}
public function actionSWF(event:MouseEvent):void
{
//play loaded swf (target?)
trace("actionSWF Clicked");
for (var i:Number = 0; i < total_swfs; i++)
{
//XML URL
var actionURL = toolsXMLList*.@ACTION_URL;
swf_loader.load(new URLRequest(actionURL));
}
}
public function loopAction_360(event:MouseEvent):void
{
trace("loopAction_360 Clicked");
event.currentTarget.content.gotoAndPlay("360view");
//timeline.instMC.gotoAndPlay("360view");
}
//CONSTRUCTOR FUNCTION
public function swfPlayerMain()
{
trace("swfPlayerMain_02");
toolsXMLLoader.load(new URLRequest("toolUIwindow_content.xml"));
toolsXMLLoader.addEventListener (Event.COMPLETE, processXML);
setupButtons();
setUpSlider();
setUpLabel();
configureListeners();
trace("swfPlayerMain_07");
}
}
}
Thanks so much
