ActionScript 3.0 :: Null TextField - "automatically Declare Stage Instances"
Nov 25, 2009
Have recently started de-activating "automatically declare stage instances" in order to get code-completion for stage assets in FlashDevelop and also because I find it's better to have visible declarations of all class properties. Problem is that I'm getting some weird issues with TextFields being null for no apparent reason. For example, I have a MovieClip with a linkage class - this works fine. Any Sprites within it work fine and can be accessed in the Class itself. However, all TextFields are null despite being declared in the Class and instance named in the IDE.
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Feb 11, 2009
however I restructured my folders and now my .fla is in the /src/ with my MainApp.as ( Document class )
then MainApp creates a new instance of a class that is in /src/blah/blah/deep/
When this new as class is created it has a few buttons on it that are declared in the .fla as instance variables. I have turned off automatically declare stage instances.
[Code]...
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Feb 11, 2009
however I restructured my folders and now my .fla is in the /src/ with my MainApp.as ( Document class ) then MainApp creates a new instance of a class that is in /src/blah/blah/deep/When this new as class is created it has a few buttons on it that are declared in the .fla as instance variables.I have turned off automatically declare stage instances.and declare it in my class like so.[code].....
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Jun 2, 2009
In MXML it's possible to declare object instances, even for dynamic objects, [code]...
Is it possible to do the same with the Dictionary class without using some MXML wrapper class?
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Aug 7, 2009
Basically here is what I want to do[code]...
But I got something wrong in the declare statement.
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Jun 29, 2010
Attached is basically a recreation of the problem. What I'm basically trying to do is a tooltip window with 4 frames. Each frame has different textfields but also some the same. Like the "Weapon" frame has textfields called namebox, typebox, levelbox, and damagebox, while the "Armor" frame has namebox, typebox, levelbox, and defensebox.
In the attachment there is a Movieclip called awd on the stage. It has 2 keyframes in it called "Weapon" and "Drop" each with their own textfields but they are both called "box". I have a click event listener that makes awd go to its second frame and outputs the second child in awd, which will be the textfield. The problem is when I click the first time, awd goes to the second frame but it outputs null instead of Object TextField. When I click again it outputs Object TextField. If I trace the number of children it gives me 2. So I don't know how it can be null.
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Dec 19, 2009
I have begun on a list: My reference is null!Stage is null! Convert this code from as 2 to as 3 for me! Crossdomain policies are in the way of my cool idea Dynamic property names I need to use stuff on the parent! I don't want my children to scale when I scale the parent! Classes vs instances. Mod note: I do not want this topic pinned, we will use a fresh topic once we have agreed to the content.
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Mar 30, 2012
I am trying out the following code, so that whenever I make a movieclip null, the array containing it's reference too becomes null. I understand the following code cannot do this, but I want somehow, the array can provide information, if the movieclip has got null.
import flash.display.MovieClip;
import flash.events.Event;
var a_arr:Array = new Array(a_Mc,b_Mc);
trace(a_arr);
a_Mc= null ;
trace(a_arr);
Output is:
[object MovieClip],[object MovieClip]
But I want something like null, [object MovieClip ]
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Sep 22, 2008
I'm currently stumped by this. I've created a class to load xml data from a txt file, then assign that xml to a variable named siteStructureXml. When I trace the value of siteStructureXml from within the class instance it shows the expected xml data. When I try to assign the value to a variable returnedXml defined on the timeline of my movie, it's value traces as null. I've a feeling it's something blindingly obvious..
[Code]...
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Jan 20, 2011
Lately I've found myself constantly writing removeEventListeners everywhere, which makes code quite messy. I know it's a best practice and such, but in general it has no sense. Garbage collector should handle such a simple task by itself, shouldn't it? Is it that hard to remove all listeners automatically when object is set to null?
So I just want to be sure if that's the case. Does setting an object to null, automatically remove all attached event listeners? In my case scenario is like this - I create an object and attach bunch of event listeners to it, then after a while I need to re-initialize this object. Of course setting this object to null is much easier then unbinding every listener by hand. And on most part listeners are anonymous functions, which means that it's not possible without code refactoring. When I simply re-initialize a variable with new I do not get duplicate listeners and such, but I'm not sure that it's previous value, along with all the listeners gets garbage-collected. Is it?
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Nov 3, 2010
In my library I have:A Sprite named Emily of base-class "Character" with a sub-sprite labeled "head" of auto-generated Class "EmilyHead".A Sprite named Jess of base-class "Character" witha sub-sprite labeled "head" of auto-generated Class "JessHead".
Flash compiles with the following warning: Warning: All instances named 'head' will be automatically declared as JessHead in symbols that use Character as their base class. In symbols that are linked to user-defined base classes, instances with the same name must be of the same type. And then the runtime error:TypeError: Error #1034: Type Coercion failed: cannot convert EmilyHead@3a0d1e81 to JessHead. at flash.display::Sprite/constructChildren() at flash.display::Sprite()at Character() I can turn of auto-declare stage instances in the Actionscript 3 panel, but then I have to manually add a public var for all sub-child's, such as the head sprite. But then at least everything works as expected. This is more setup than I'd prefer to do, but everything else about this workflow is very fast & easy. What can I do to sidestep this error, while keeping the same workflow?
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Dec 18, 2009
I'm trying to set the width of a Textfield() object based on it's string content that I have set-Is there a way to dynamically set this once the string has been sent to the object?I have:
var t1:TextField = new TextField()
t1.x = stage.stageWidth / 2;
t1.y = stage.stageHeight / 2;
[code].....
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Nov 12, 2009
I have 3 input text boxes: dayNum,monthNum,yearNum. They each have a charater limit on them, below:
Code:
if (dayNum.text.length<2 | monthNum.text.length<2 | yearNum.text.length<4) {
trace(" Input Error");
[code].....
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Dec 9, 2009
I've got a text field that is deep down in a hierarchy of DisplayObjects. The root object is scaled by a variable factor.I want the text field to display it's text in a specific font size, but the text field scales because it's a child of the scaled root object. Is there any possibility to prevent this? I didn't find something in the Adobe documentation.
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Sep 23, 2003
Howz the day? Well im new to Flash scripting. Can you guide me for the following problem.I generated the xml file through that data in it, i would like to get the output in flash file (.fla).
[Code]...
Where in this xml file number of object type of content and image are not same for every page.For every content like to create <TextField> as well as every image like to create <Movieclip> automatically based on every page.After generating the objects in the xml file into the flash scripting.If its more than one page.User can able to view in the format of <NEXT> and <PREVIOUS> button.So this is the scenario.if anyone come across this problem just tell your way of suggestion,snippets or sample peice of code to move ahead further.
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Jun 9, 2010
I am currently working with a contractor company that is hosting a flex based website. They are putting the swf files that I have developed into their flex site.The issue that I am having is that within my swf file I need to reference the stage.I do this by "MovieClip(parent).stage"... I do not use the keyword "root", I just reference my swf's root through however many "parent"s i need. It works fine when I publish on my own, outside of their flex site. When it is used in the flex site, they are getting an error that they cannot reference the stage/ stage is null. It is vital that I am able to reference the stage of my swf.
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Aug 26, 2009
When creating a new TextField dynamically, is there a property that automatically adjusts the width to the content or is it always necessary to have txt_field.width = ...?
My text field:
txt_field = new TextField();
txt_field.wordWrap=true;
txt_field.text = source;
txt_field.autoSize=TextFieldAutoSize.LEFT;
txt_field.mouseEnabled=false;
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Jan 29, 2010
What's happening in this simple piece of AS3 code? Why does my object change from TextField to the more generic DisplayObject?
public class Menu extends MovieClip
{
private var active_button:SimpleButton;
public function Menu()
{
[Code]...
This question is simliar to [URL].. I'm posting this because its more focused and deals with a single aspect of the broader issue.
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Jun 23, 2011
I'm trying to create a user input textfield which automatically applies the defined format on it. The only problem is: actionscript 3 seems to ignore the format and stubbornly applies the default text format. How can I apply the desired format on user typed text? Here's my code so far. As you can see, for experimental reasons I tried to apply the size "60" on the text, but if you execute the script, the size of the text remains unchanged:
PHP Code:
import flash.text.Font;
import flash.text.TextFormat;
import flash.text.TextField;
var theTextField:TextField = new TextField();
var txtFmt:TextFormat = new TextFormat();
[Code] .....
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Jan 27, 2011
I'm loading some product names into a textfield and I got few buttons with some of those product names on it.When a product button is clicked, how do I make the textfield scroll automatically and to display that particular item in a specified Y position?
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Aug 13, 2010
I have a small issue, which is important for my project though. Namely my global var returns null when I need it. I have a global var class:
Code:
package {
public class Global {
public static var premiseGlobalName:String = new String();
}}
In another class I'm setting this var like so:
Code:
public function onButtonRollOver (event:MouseEvent):void {
Global.premiseGlobalName = "My home";
this.addChild(premiseMenu);
}
The second line in the method calls another class to the stage which uses the global var. I trace the global var:
Code:
public function initPremiseMenu():void {
trace("GLOBAL: " + Global.premiseGlobalName);
}
But it returns an empty value.
I want to use the global var in a textfield like so:
Code:
premiseTip.text = Global.premiseGlobalName;
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Mar 15, 2012
been working in Flash using AS2 and loading external XML data into the movie. I am able to load the data into in Flash and parse it, but I haven't been able to figure out how to load the names of buttons from separate nod values into a textfield.Unfortunately, I dont feel I know AS3 well enough and am a little bit rusty on my AS2.I created a movie clip which holds the dynamic textfield and placed 30 instances on the stage. Each instance is successively named "cityName[i]" where i is a number from 1-30. I've tried setting the instances as both buttons and movie clips. I also tried setting both the .text and.htmlText attributes, but neither works. Ive embedded the fonts on the dynamic text field. Ive also tried changing the field to input instead of dynamic but that doesnïwork either. Ive been tracing things to try to debug, but havenï found the issue yet.Here's the code:
ActionScript Code:
//load XML data
var citiesData:XML = new XML();
[code]........
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Mar 15, 2012
Ive been working in Flash using AS2 and loading external XML data into the movie. I am able to load the data into in Flash and parse it, but I haven't been able to figure out how to load the names of buttons from separate nod values into a textfield.
I created a movie clip which holds the dynamic textfield and placed 30 instances on the stage. Each instance is successively named "cityName[i]" where i is a number from 1-30. I've tried setting the instances as both buttons and movie clips. I also tried setting both the .text and.htmlText attributes, but neither works. Ive embedded the fonts on the dynamic text field. Ive also tried changing the field to input instead of dynamic but that doesnt work either. Ive been tracing things to try to debug, but havent found the issue yet.
Here's the code:
Code:
//load XML data
var citiesData:XML = new XML();
citiesData.ignoreWhite = true;
[Code]....
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Aug 10, 2010
I want a typewriter-effect. So that it looks like the code in the string is typed character by character (for an animation). However, I get a #1009 back. It talks about a null object reference (the error is in Dutch).My dynamic text field is in the same scene, on a different layer. codeTekst is the instance name. It is classic, dynamic text. Multiline behaviour and not embedded in a symbol. I'm using Flash CS5. Here is my code:
import flash.utils.Timer;
import flash.events.TimerEvent;[ code].........
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Oct 15, 2003
I read Senocular's tutorial on XML and found it really useful. But I still have a problem: When I try to get some text from a node into a textfield by using .nodeValue I get 'null'. When I use nodeType on that node the result is "1". I understand that a textnode should result in value "3". But how come this isn't the case here? My xml looks like:
[Code]....
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May 25, 2011
I'm trying to embed fonts at runtime in actionscript and it somewhat works. I can embed fonts by either using the embed tag or by loading a font library asset with a linkage name and use it with a new TextField. However, a textfield that exists on a movie clip already does not have the embedded font and is missing characters.
A quick example in code (textInstance exists on the movieclip):
var embeddedFonts = Font.enumerateFonts(); //Shows embedded font
var textFormat:TextFormat = textInstance.getTextFormat();
textInstance.text = "Don't be lazy"; //missing characters
[Code].....
I want to embed the font at runtime and I'm loading multiple SWFs and I don't want to embed the font in each SWF.
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Aug 21, 2009
I am a new-comer to these forums, as I am still trying to get used to Flash CS4.
This seems like a very simple problem (might not even be a problem at all), but I can't figure out for the life of me.
Everytime I open up a new window, and as I randomly begin to draw in pencil or make rectangles, when the focus on the window is changed to somewhere else my drawings just disappear.
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Oct 12, 2009
After having read this article[url]...
it's quite nice, but no matter what I try, I can't make any code that centers my gallery on stage.as it works now, the pictures are to far to the right, probably because the original setup in the article mentioned before was a 3 x 3 picture setup, not a 4 x 3 setup like mine.[code]...
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Jun 11, 2011
I have searched for this but keep getting answers relating to the whole website resizing rather then a certain movieclip or instance etc. I am quite new to flash & action script but i get the idea & have built simple websites before. Publish HTML settings: scale "default(show all)" & have dimensions as a percent. Html & Flash. So everything looks great. I am using slideshow pro which is hidden behind what i want to be a fullscreen thumbnail grid as i couldn't figure out how to use thumbnail grid by itself. Im using it as a full-screen slide to show my photography.
I have one instance of thumbnail grid that i want to fill the browser window. When on a big monitor it doesn't expand to the sides. What code do i need so this instance can change to automatically resize fit the window/ browser/stage. (i can change it to a movieclip possibly if i need to?)
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Oct 21, 2004
How do a make a center a mc automatically on the stage with aS. The script should detect what the stage size is and move the mc to the middle.
Im making smartclip-preloader and want to be as productive as possible later on.
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