So heres the code:
function playSound():void
{
var channel:SoundChannel = sound.play();
channel.addEventListener(Event.SOUND_COMPLETE, onComplete);
}
function onComplete(event:Event):void
{
SoundChannel(event.target).removeEventListener(event.type, onComplete);
playSound();
}
I get the error on channel.addEventListener(Event.SOUND_COMPLETE, onComplete);
but I dont get it at the start, as a game runs for some time without the error, so Im suggesting theres a problem in a onComplete function or an event listener, however, all I tried had failed and Im stuck here for some time now.
I just decided to post it here and see if anybody can see the problem.
Thanks in advance!
EDIT:
Sorry I havent included this right away.
Error:
TypeError: Error #1009: Cannot access a property or method of a null
object reference. at
projectSnowFlake_fla::MainTimeline/playSound()[projectSnowFlake_fla.MainTimeline::frame1:275]
at
projectSnowFlake_fla::MainTimeline/playGame()[projectSnowFlake_fla.MainTimeline::frame1:269]
at
projectSnowFlake_fla::MainTimeline/gameLoop()[projectSnowFlake_fla.MainTimeline::frame1:156]
[UnloadSWF] projectSnowFlake.swf Test Movie terminated.
And heres the sound :
var sound:Sound = new MainSound();
I read your code, the only potentially issue is sound variable, can be null.
Have you instantiated sound variable?
If sound is valued, the method play (of variable sound) can return a null value?
EDIT AFTER COMMENTS:
Hi, view this and this issue
Related
I'm setting up a button on the first frame which when clicked will transfer the user to the 2nd frame using this code:
stop();
Btn_1.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlayFromFrame_2);
function fl_ClickToGoToAndPlayFromFrame_2(event:MouseEvent):void
{
gotoAndPlay(2);
}
and on the second frame, I set up a dynamic text that will perform a countdown using this code:
var myTimer:Timer = new Timer(1000,60); // every second for 60 seconds
myTimer.addEventListener(TimerEvent.TIMER, onTimer);
myTimer.addEventListener(TimerEvent.TIMER_COMPLETE, onComplete);
myTimer.start();
function onTimer(e: TimerEvent):void {
countdown_text.text = String(myTimer.repeatCount - myTimer.currentCount);
}
function onComplete(e: TimerEvent):void{
gotoAndStop(3);
}
the thing is keep getting TypeError: Error #1009 message after debugging it. I know the fault is in line 7 of the 2nd code but I have no idea what is wrong with it. Pls help!
I should see your source fla, but it is most likely related to countdown_text not being accessible in that frame. Error description is "Cannot access a property or method of a null object reference", that means it cannot find the reference which is "countdown_text".
It is very very bad practice to write AS directly in frames. Convert code into a class and assign it as a document class.
You can find Adobe documentation for document class here: https://helpx.adobe.com/animate/using/actionscript-publish-settings.html
please help i am getting this error and could not solve with any of the other methods described in all previous posts with similar topic.
Actually here i am loading a swf myMap onto another swf.
The swf loading works fine, but when try to remove this from stage i get the above said error...
ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
at flash.display::DisplayObjectContainer/removeChild()
at actions.classes::MapInteractionManager/unloadSWF()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
Here's my as3 code...
var _swfLoader:Loader;
var _swfContent:MovieClip;
loadSWF("myMap.swf"); //loading the swf file here
function loadSWF(path:String):void {
var _req:URLRequest = new URLRequest();
_req.url = path;
_swfLoader = new Loader();
setupListeners(_swfLoader.contentLoaderInfo);
_swfLoader.load(_req);
}
function setupListeners(dispatcher:IEventDispatcher):void {
dispatcher.addEventListener(Event.COMPLETE, addSWF);
dispatcher.addEventListener(ProgressEvent.PROGRESS, preloadSWF);
}
function preloadSWF(event:ProgressEvent):void {
var _perc:int = (event.bytesLoaded / event.bytesTotal) * 100;
// swfPreloader.percentTF.text = _perc + "%";
}
function addSWF(event:Event):void {
event.target.removeEventListener(Event.COMPLETE, addSWF);
event.target.removeEventListener(ProgressEvent.PROGRESS, preloadSWF);
_swfContent = event.target.content;
_swfContent.addEventListener("close", unloadSWF);
main.stage.addChild(_swfContent);
}
function unloadSWF(event:Event):void {
_swfLoader.unloadAndStop();
main.stage.removeChild(_swfContent); //getting error when trying to remove swf
_swfContent = null;
}
and close event is as,
_swfContent.dispatchEvent(new Event("close"));
Please help, I'm stuck.
here with some update,
i updated code as,
function unloadSWF(event:Event):void
{
if(main.stage.contains(_swfContent))
main.stage.removeChild(_swfContent);
}
Now the error is gone as it is not entering the if loop!!!???
But still i can see that swf on stage:( plz help
GOT SOLVED...
Thanks everyone for helping...
ToddBFisher did solve it:)
Simply added the _swfLoader to the stage, loaded it, and attached the close listener to it instead of even having a _swfContent. Cut out the middle man and it worked.... Hope this helps...
As I recall .unloadAndStop(); does a bunch of cleanup type things, which you are calling right before. It is possible part of the cleanup is removing it from the display list.
Try calling the removeChild() before calling unlodaAndStop()
function unloadSWF(event:Event):void {
stage.removeChild(_swfContent); //getting error when trying to remove swf
_swfLoader.unloadAndStop();
_swfContent = null;
}
EDIT
Try simply adding the _swfLoader to the stage, load it, and attach the close listener to it instead of even having a _swfContent. Cut out the middle man and see what happens.
The error means the child is already removed (or never added)
try to comment out
_swfLoader.unloadAndStop();
to see if it works.
main.stage.removeChild is already setting _swfContent to null because removeChild was fired so removing the line _swfContent = null might solve it.
I have a problem, this works then at the " and" it dies and gives me an error
TypeError: Error #1009: Cannot access
a property or method of a null object
reference. at
Untitled_fla::MainTimeline/frameLooper()
at
flash.utils::Timer/_timerDispatch()
at flash.utils::Timer/tick()
CODE
var string:String = "Welcome to PuppetWeb Inc\nMy name is Steve and I will be your host for this presentation!\n...\nOkay I think it is ready, let's go!";
var myArray:Array = string.split("");
var timer : Timer = new Timer (100, myArray.length);
timer.addEventListener (TimerEvent.TIMER, frameLooper);
timer.start();
function frameLooper(event:Event):void {
if(myArray.length > 0) {
text1.appendText(myArray.shift());
}else{
removeEventListener(Event.ENTER_FRAME, frameLooper);
}
}
It works for the start and then just dies at and, and then it shows that error about 50 times and restarts.
Any help?
I assume this is code written on a keyframe in the timeline, so my guess would be that your textfield goes away for some reason, most likely a keyframe animation of some kind.
It's also somewhat odd that you are removing an Event.ENTER_FRAME listener when the array is empty and not the TimerEvent.TIMER
At the end, you're trying to remove the listener from an implicit "this". Your statement is equivalent to:
this.removeEventListener(Event.ENTER_FRAME, frameLooper);
But "this" is a reference to the main timeline (if this is a frame script on the main timeline) or a reference to the instance that contains this code. It's not a reference to the Timer instance, which is what you need:
event.target.removeEventListener(TimerEvent.TIMER, frameLooper);
Why not use string.charAt()?
var string:String = "Welcome to PuppetWeb Inc\nMy name is Steve and I will be your host for this presentation!\n...\nOkay I think it is ready, let's go!";
var timer : Timer = new Timer (100, string.length);
timer.addEventListener (TimerEvent.TIMER, frameLooper);
timer.start();
function frameLooper(event:TimerEvent):void {
text1.appendText(string.charAt (event.target.currentCount-1);
}
Among all the other issues Stated in the other posts you are not stopping the time.
Dont forget timer.stop( );
I’m having trouble removing the an event listener as well as the sprite at the same time. I currently get an error:
TypeError: Error #1009: Cannot access
a property or method of a null object
reference.
And if I comment out removeChild, I have no error but, obviously, the sprite remains on the screen. Any ideas how I can rid myself of that error?
//Bullet extends Sprite Class
bullet:Bullet = new Bullet();
mc.addChild(bullet);
bullet.addEventListener(Event.ENTER_FRAME, shoot);
function shoot(e:Event):void {
var shot:Bullet = e.currentTarget as Bullet;
//check shot is outside the frame
if (shot.x < 0 - shot.width || shot.x > stage.stageWidth || shot.y > 525)
{
//trying to remove the thing and it's listener
e.currentTarget.removeEventListener(e.type,arguments.callee);
e.currentTarget.parent.removeChild(shot);
}
else
{
shot.setInMotion();
}
}
Apart from a missing var before bullet:Bullet, I don't see anything wrong in the example code. You should set a breakpoint right after:
var shot:Bullet = e.currentTarget as Bullet;
And figure out why shot is null. I suspect there is something amiss in a piece of code outside of the little bit you're providing as the example. If the code is working with only the removeChild line commented out, it tells me that e.currentTarget is not null, but that it's also not a reference to an instance of type Bullet (i.e. the "as" cast is returning null).
Try reversing these lines
Maybe the reference to e.currentTarget is getting lost through the object references
e.currentTarget.removeEventListener(e.type,arguments.callee);
e.currentTarget.parent.removeChild(shot);
to
e.currentTarget.parent.removeChild(shot);
e.currentTarget.removeEventListener(e.type,arguments.callee);
I have an SWF loading in an SWF containing a papervision scene.
I've done it before yet problem is, I get an error - I'm not sure what the issue really is.
private function downloadSWF(url:String):void
{
trace(url);
var urlRequest:URLRequest = new URLRequest(url);
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loaderProgressEventHandler);
loader.load(urlRequest);
}
private function loaderProgressEventHandler(ev:ProgressEvent):void
{
loader.preloaderCircle.percent = ev.bytesLoaded / ev.bytesTotal;
}
When the application runs the code - I get the error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at com.dehash.pv3d.examples.physics::WowDemo()
Why am I getting this if the loading hasn't even complete yet?
Thanks in advance guys.
Edit: Try a blank child swf, see if the other one was trying access something in the parent. – Jorge
I did this, it seems, even with a simple SWF with a mouse click listener causes the Error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at simple_fla::MainTimeline/frame1()
My code for that is:
import flash.events.MouseEvent;
this.stage.addEventListener(MouseEvent.CLICK, onClick);
function onClick(ev:MouseEvent):void
{
trace("MouseClick");
}
Am I missing something blatantly obvious??
The problem is that the loaded swf starts running without it being added to the stage. So stage is null, resulting in that error.
The second example with the addedToStageEventHandler works because there stage is only referenced after the object was added to the stage, so stage is not null anymore.
A possible solution for the first error is adding the loader to the stage. That way, when the swf is loaded and starts, it already has a stage reference.
It won't even load if there's an error. You're accessing an unreferenced object on the WowDemo() class...did you instantiate correctly the class?
this seems to work inside my child SWF:
this.addEventListener(Event.ADDED_TO_STAGE, addedToStageEventHandler);
function onClick(ev:MouseEvent):void
{
trace("MouseClick");
var event:Event = new Event("END", true, false);
this.dispatchEvent(event);
}
function addedToStageEventHandler(ev:Event):void
{
this.stage.addEventListener(MouseEvent.CLICK, onClick);
}
does anyone know Why?