ActionScript 3.0 :: Null Object Reference After Motion Tween?
May 21, 2011
I've got a movieClip, initially it starts with a motion tween, like a pop-in effect, and then after that i've created a keyframe and made the movieClip to continue to, like 450 frames.So the tween finishes at frame 20 and then from frame 21 just the movieClip is displayed.When I write a script at frame 21 to reference this movieClip I get a null object reference error.In this script I want to reference a button which is inside of it, but I'm pretty sure that I cant access this movieClip whatsoever.
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Jul 28, 2009
I am having problems with a scrollbar tween on my site. I have tested the site ([URL]) on many browsers, and it tends to work fine. But, on a Firefox browser, I think with a new version of flash player, and also when I run the Debug on Flash, I get this occasional error:
[Code]...
This tends to happen if the user clicks on the scrollbar button, begins moving the scroller, and then, without clicking back on the scrollbar button to stop it, the user presses on a button on the left navigation. I think I understand what the error is telling me, that it can't complete a function for things that are not yet on the stage. But I am not sure how to fix the code regarding the Tween to get around this. Would anyone be willing to look over my files if I sent them? Here is the Tween code I am using:
[Code]...
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Aug 22, 2011
I have one MXML File as
<objecthandles:ObjectHandles xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" backgroundAlpha="1" xmlns:mx="library://ns.adobe.com/flex/mx"
[code].....
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Aug 20, 2011
I'm creating a movie clip button and for the out state I have this:
web_btn.addEventListener(MouseEvent.MOUSE_OUT, at_out);
function at_out(event:MouseEvent):void {
web_btn.gotoAndPlay(30-(web_btn.currentFrame-11));
[code].....
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Oct 9, 2010
On the stage there's an empty clip called mc1in the library there's a clip called with the class name Ballnow every frame this functions is executed:mc1.addChild(new Ball())inside ball, at frame ten:this.parent.removeChild(this)so this creates a bunch of balls on the stage, but after a while this error shows up:TypeError: Error #1009: Cannot access a property or method of a null object reference.t Ball/frame10()Edit: ok by tracing Ball's name I understand that even though the Ball is removed it continues to exist somewhere?
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Oct 24, 2011
I need to have a textbox displaying the x coordinates of an object during its motion tween. I know how to do it for individual frames but don't know how to add an eventListener to do it over the span of the tween.
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Apr 29, 2010
Im trying to make a ball move to the position of a crosshair (not the mouse, but another object on the stage) which stops after 15 seconds (if you can imagine a penalty shoot out game).
So the ball is still to begin, but on an onClipEvent(enterFrame)command it should move to the target (the crosshair)
Getting the ball to move along a line at a specified speed is no problem, but I want the ball to actually go to and stop wherever the crosshair is on the stage.
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Sep 11, 2010
Why does this code not work? It seems to make the error:#1009: Cannot access a property or method of a null object reference. my buttons on the same frame have all stopped working,
import flash.display.MovieClip;import fl.containers.ScrollPane;scrollpane.content as MovieClip;MovieClip(scrollpane.content).gotoAndSto p("frameName");
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Oct 28, 2009
I'm animating some mc's at the beginning of the timeline with AS3 (mostly alpha fades), but then I have some tweened animations further down the timeline and a "naviagation bar" that's on all frames, so a user can click a button and jump to a part of the timeline to see some other animations.My problem is that if I don't wait to see the programmed animations at the beginning and just clicka button to see the other tweened animations, I get an error:
"Error #1009: Cannot access a property or method of a null object reference. at flash_fla::MainTimeline/tube_glow2_animate()"
(tube_glow2_animate() being the name of a function)
[code].....
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Mar 27, 2010
My movieclips are being nulled when moving between scenes, they are created on the stage and accessed through as3. I have login screen with three button, one logout, one exits the system and the other takes them to the next scene. When going back to the login scene, and trying to access movieclips like add eventlisterners etc... it comes back with null object reference, claiming that my buttons which are on the stage are null and sure enough if I debug they are. Any reason why my movieclips are being made null when moving between scenes?
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Feb 7, 2011
I have a object called "target" with a property called "movement":
private function start() {
var movement:IMovement = new ZigZagMovement(target);
target.movement = movement;
[code]....
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May 29, 2009
Here is the error:TypeError: Error #1009: Cannot access a property or method of a null object reference.at mx.styles:: StyleProtoChain$/ initProtoChainForUIComponentStyleName()[C:autobuild3.2.0frameworksprojectsframeworksrcmxstylesStyleProtoChain.as:72][code]......
Maybe you could school me in how to keep null object references out of complex Classes?
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Aug 18, 2010
I have a test main.swf with just a UI loader component loading in an external .swfThe swf is a flash scroll using the component class. The swf works fine on its own but when used with the UI loader I get an null reference msg.The files have xml, .as and css files in the zip.light on why I get this reference as the scroll and text appear in the main.swf but the scroll does not function.
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Aug 26, 2010
I have a movieclip that I add to the stage and Im trying to reference a input text field on the second frame.When I trace the textfield on the first frame via the constructor it returns object textfield correctly.When I hit the enter button to go to the second frame where I will need to use password... I get a null when tracing. I can see it, I can write in it and no matter what I do I cannot seem to reference it.
Code:
public function Registration():void
{
trace(this.usernameField); //returns textfield correctly[code]...
In case you need the parent of registration its just the document class and I create registration like this..
Code:
var registration:Registration = new Registration();
addChild(registration); //ive also added it to the stage w/ no luck
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Sep 11, 2010
Why does this code not work? It seems to make the error:#1009: Cannot access a property or method of a null object reference. my buttons on the same frame have all stopped working
import flash.display.MovieClip;import fl.containers.ScrollPane;scrollpane.content as MovieClip;MovieClip(scrollpane.content).gotoAndSto p("frameName");
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Oct 7, 2010
I have this set of codes for a simple chat program using SharedObjects. When I run the program, I type my name into the 'chatName' box and my message in the 'textInput'box. However when click on the 'Send' button or press the Enter key, I am getting the following error:
[code]...
I am wondering how 'text_so' can be a null object reference. It was already instantantiated and setup earlier in the code. The relevant lines of code are below.Setting up of the shared object function
[code]...
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Mar 25, 2011
I'm a young girl who recently discovered flash cs3 (I started yesterday) I found this tutorial about how to make a flying bird. I did as the tutorial said, I just made a butterfly instead of a bird. Now I made a flower and I want the butterfly to land on the flower. The tutorial only showed me how to make the bird/butterfly fly through the scene and not how to stop it while I still see it in the scene. I figured out how to stop the motion tween but then the butterfly dissappeared from the flash file after it stopped and I also figured out how to make it land on the flower but it keeps moving its wings Now I need help to make it stop moving the wings while it's still visible. I hope my explanation is understandable. As I said I just started with this program so I don't know how to explain all the different things.
I tried to upload the file on imageshack but it seems like it doesn't support this kind of file, or I'm saving it wrong. I could need some help with that too so I can show others what I'm making without that they have to download the file so it's easier to get help when I'm stuck A link to the .swf file [URL]
[Code]...
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Sep 21, 2011
I have encountered an interesting situation, I would like to simulate a ball thrown by a goalkeeper from top. Ball is going to move from right to left, it is small at the beginning, getting bigger at the half, because it gains height, and small again at the end. The scenario is this. And I do not want to use any actionscript code because of the performance loss caused by the event listeners.
How can I simulate two different kinds of tween (horizontal move is without ease and vertical move is with easeOut and easeIn) in the design environment of Flash cs5.5
By the way, I have already tried using actionscript code however, because there so many concurrent event, a little lag is occured at the beginning of each tween start.
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Jan 9, 2010
I want to create motion tween between two points of object.
example:
startingpoint100,100);
destn point200,300);
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Jul 6, 2011
Right now, I have a car object named car that I want to animate around a track. I did the animation using a motion tween, then used the Copy Motion as AS3 option, the code looks something like this (arrays have been simplified so as not to take up too much room). The code works just fine, the car moves around the track like I wanted it to, but I was wondering is it possible to press a button to stop the animation at a certain point, then resume playing it again when pressing a different button?
ActionScript Code:
var motionGuide:MotionBase;
if(motionGuide == null) {
motionGuide = new Motion();
motionGuide.duration = 20;
[Code] .....
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Feb 3, 2010
"Cannot access a property or method of a null object reference."I'm trying to get a button to go to a frame in my movie and stop. The code I am using is
Code:
btn1_btn.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler5);
function mouseDownHandler5(event:MouseEvent):void {
gotoAndStop(19);
}
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Apr 20, 2010
I have a slight problem. 3 scenes one named home , gallery and profile . 3 buttons each named after the scene. Whenever i test it and click a button to go to another scene i get this TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Untitled_fla::MainTimeline/frame2()
at flash.display::MovieClip/gotoAndPlay()
at Untitled_fla::MainTimeline/buttonClick1()
[code].....
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May 13, 2010
I have been trying to design a maze game for college project but I seem to be stuck and hoping someone can help me out. Get error:1009: Cannot access a property or method of a null object reference.at code::Game1$iinit()New to flash so not sure what this means. [code]
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Jul 10, 2009
I have a form where a user can select up to three radio buttons and click submit. however if they don't select a radio from one of the groups (they dont care to answer the question or just missed it) the value of the radio button (I think) is null and gets returned as such using this code:
function Question1():Object{ return RadioButtonGroup(Q1R1.group).selection.value;}
Then, when they hit the submit button it sends the values to the database. This works fine, but only if they select a radio button for each group. If they missed one I get the following error:
"TypeError: Error #1009: Cannot access a property or method of a null object reference. at mid_fla::MainTimeline/Question1() at mid_fla::MainTimeline/clickHandler()"
When I did a trace on the value of Question1() it returns function Function() {}
how to check if the value returned is a null object reference or whatever and give it a default value if it is?
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Jul 15, 2009
Somehow my class is giving me the following error, after I added a SoundTransform object.What am I missing The issue is somewhere with the
private var soundTrans:SoundTransform;
soundTrans = new SoundTransform();
Why would that be happening?
[code].....
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Nov 1, 2009
well i have a problem with my analog clock. i have it in my homepage and now it's working fine, but when i test my movie and click in my portfolio, for example, my output windows gives me this error: TypeError: Error #1009: Cannot access a property or method of a null object reference. at index_fla::MainTimeline/clock() i don't understand because even when i change from page to page (or frames) the clock is still working and everything is ok... but the message keeps appearing till i close my test movie window... and i've noticed that when i go online, there are some files missing that weren't till i had the clock on my homepage.[code]
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Mar 8, 2010
I'm trying to trace the mouse X position with a movieclip.What I have done so far:
public class LuckyHitBeta extends MovieClip {
var ballReady:ballReady_mc;
private function liveIcon():void {
[code].....
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Dec 8, 2010
I am just trying to watch television episodes on my laptop. this error has been popping up for the last couple weeks for no apparent reason. At first, it also said the Flash Player didn't work with 64 bit whatever with IE8. The error said a patch was not yet made and to use IE 32 bit. I did this and am still getting the error. I have uninstalled flash player and reinstallaed it to no avail. This error led to further problems on my laptop resulting in a total crash. Fortunately, I was able to back up all my files before they disappeared. I restored the computer to a time before I started watching television programs on XFinity.com (about a couple months ago) and it seemed corrected for a while and then the error started again. I am given the option to continue or dismiss. either button allows me to continue watching the program, but then repeatedly appears even when I quit XFinity and watch the shows directly from the network websites.
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Mar 27, 2009
I am trying to figure out the logic to remove a nullreference error that is popping up when an item is not dragged. Inthe code, I have a stopDrag setup for the stage. It works asexpected unless the user clicks the item but doesn't drag it. Itcauses the variable I have set to bring the name of the dropTargetto be a null which crashes the system. I have tried to declare thevariable with a default value but it still doesn't work.It is the targetStop code that it is crashing on. Is thereanyway to default a value so I can do an if / then statement todetermine if there is a value? I've tried: if (targetStop == null)but that doesn't seem to work.
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Jan 25, 2012
I am implementing the below code but it throws the null object reference at line number 4. Text input has also been created but don't understand why its showing null object ref. error.
var test:TextInput = new TextInput();
var obj:Object = new Object;
obj.name = 'kapil';
test.data = obj;
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