RE: [flexcoders] Re: addChild doesn't effect for some reason REFdn2065133102
For god's sake. it works =) ! The button hasn't (at all) width and height! What is the difference between the addChild(buttonFromMainClass); and Application(Application.application).addChild(buttonFromMainClass); In the adding process??? Does any body knows? Thanks Amy anyway!!! dennis
RE: [flexcoders] Re: addchild
Why would you think that a book called actionscript 3 animation uses only only flash.* classes throughout and avoids the mx.* classes completely ? It was just a guess, because the title didn't include the word Flex. Are you saying that this book actually does use mx.* classes? Doesn't Flex use actionscript 3? Yes. As I said, you write AS3 to use both the flash.* classes (which are actually implemented in C++) and the mx.* classes (which are themselves implemented in AS3). And, as I said, the former are low-level classes built into the Player while the latter are high-level classes provided with the Flex framework which get linked into your SWF. Doesn't it do animation? Yes, it can do animation. In fact, Flex's mx.effects.* classes ARE animation classes. But we didn't create Flex to make it easier to make balls move around the stage. The focus of Flex is not Flash-style animations and games, although some developers use it to create just that. Flex is really focused on building Rich Internet Applications, and we provide the most common components that are necessary to do that... things like ComboBox, DataGrid, DateChooser, etc. Gordon Smith Adobe Flex SDK Team From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Sunday, January 20, 2008 7:57 AM To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Re: addchild I'm still missing something very basic. Why would you think that a book called actionscript 3 animation uses only only flash.* classes throughout and avoids the mx.* classes completely ? Doesn't Flex use actionscript 3? Doesn't it do animation? I bought lots of other books too, thinking they would apply to flex., such as Colin Moock's Essential Actionscript 3.0. I would like to see an example of a ball that only uses mx classes. no kidding, I have looked and looked and looked and I don't see what you might be referring to. I thought I have found it when I got to http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail. html http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail .html but nothing from that page shows how to make a shape and apply the graphics to it. It just uses existing components. It should have a simple axample of making a shape and adding a stroke. http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html talks about The Graphics object to which the Stroke's styles are applied. but the link is to flash.display http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-deta il.html http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-deta il.html I did a search for mx.display, no results. I tried the example in http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vect or_Graphics_5.html http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vec tor_Graphics_5.html var squareSize:uint = 100; var square:Shape = new Shape(); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(0, 0, squareSize, squareSize); square.graphics.beginFill(0x00FF00, 0.5); square.graphics.drawRect(200, 0, squareSize, squareSize); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(400, 0, squareSize, squareSize); square.graphics.endFill(); this.addChild(square); And it turns out that these built in methods do not create a UIComponent either. TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::[EMAIL PROTECTED] to mx.core.IUIComponent. What is going on here ? Is this because I'm using flex2 and not flex 3 ? Gordon Smith wrote: The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. I'm not familiar with this book, but from the name I'd expect that they use only flash.* classes throughout and avoid the mx.* classes completely. You were trying to mix them by taking Ball and adding it into VBox. If you added Ball to a Sprite-based app (rather than an mx:Application-based app) you wouldn't have a problem. (You also wouldn't get automatic layout, etc.) Can you suggest a book ? I'm afraid that I haven't had time to investigate what's out there, but I expect that others on the list will have suggestions. It just blows my mind how bad the documentation is We've heard before that our examples are either too simple or too complex. Do you have any suggestions for specific basic concepts that aren't properly covered, or intermediate-level examples that would be useful? If so, I'll pass them on to the doc team. Gordon Smith Adobe Flex SDK Team -- *From:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] *On Behalf Of [EMAIL
Re: [flexcoders] Re: addchild
if you really want to practice using the flash book then just add it to the rawChildren property and it will work in flex project and you wont get any error but be careful though since rawChildren is for non-content children and you should not really be using it. At least that is what i do when i practice was flash only actionscript examples. It does take a while to understand the whole framework so yaaa - Original Message From: Gordon Smith [EMAIL PROTECTED] To: flexcoders@yahoogroups.com Sent: Monday, January 21, 2008 2:58:38 PM Subject: RE: [flexcoders] Re: addchild Why would you think that a book called actionscript 3 animation uses only only flash.* classes throughout and avoids the mx.* classes completely ? It was just a guess, because the title didn't include the word Flex. Are you saying that this book actually does use mx.* classes? Doesn't Flex use actionscript 3? Yes. As I said, you write AS3 to use both the flash.* classes (which are actually implemented in C++) and the mx.* classes (which are themselves implemented in AS3). And, as I said, the former are low-level classes built into the Player while the latter are high-level classes provided with the Flex framework which get linked into your SWF. Doesn't it do animation? Yes, it can do animation. In fact, Flex's mx.effects.* classes ARE animation classes. But we didn't create Flex to make it easier to make balls move around the stage. The focus of Flex is not Flash-style animations and games, although some developers use it to create just that. Flex is really focused on building Rich Internet Applications, and we provide the most common components that are necessary to do that... things like ComboBox, DataGrid, DateChooser, etc. Gordon Smith Adobe Flex SDK Team From: [EMAIL PROTECTED] ups.com [mailto:flexcoders@ yahoogroups. com] On Behalf Of [EMAIL PROTECTED] org Sent: Sunday, January 20, 2008 7:57 AM To: [EMAIL PROTECTED] ups.com Subject: Re: [flexcoders] Re: addchild I'm still missing something very basic. Why would you think that a book called actionscript 3 animation uses only only flash.* classes throughout and avoids the mx.* classes completely ? Doesn't Flex use actionscript 3? Doesn't it do animation? I bought lots of other books too, thinking they would apply to flex., such as Colin Moock's Essential Actionscript 3.0. I would like to see an example of a ball that only uses mx classes. no kidding, I have looked and looked and looked and I don't see what you might be referring to. I thought I have found it when I got to http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/ package-detail. html but nothing from that page shows how to make a shape and apply the graphics to it. It just uses existing components. It should have a simple axample of making a shape and adding a stroke. http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/ Stroke.html talks about The Graphics object to which the Stroke's styles are applied. but the link is to flash.display http://livedocs. adobe.com/ labs/flex3/ langref/flash/ display/package- detail.html I did a search for mx.display, no results. I tried the example in http://livedocs. adobe.com/ labs/flex3/ html/help. html?content= Drawing_Vector_ Graphics_ 5.html var squareSize:uint = 100; var square:Shape = new Shape(); square.graphics. beginFill( 0xFF, 0.5); square.graphics. drawRect( 0, 0, squareSize, squareSize); square.graphics. beginFill( 0x00FF00, 0.5); square.graphics. drawRect( 200, 0, squareSize, squareSize); square.graphics. beginFill( 0xFF, 0.5); square.graphics. drawRect( 400, 0, squareSize, squareSize); square.graphics. endFill() ; this.addChild( square); And it turns out that these built in methods do not create a UIComponent either. TypeError: Error #1034: Type Coercion failed: cannot convert flash.display: :[EMAIL PROTECTED] to mx.core.IUIComponen t. What is going on here ? Is this because I'm using flex2 and not flex 3 ? Gordon Smith wrote: The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent ; in thier example. I'm not familiar with this book, but from the name I'd expect that they use only flash.* classes throughout and avoid the mx.* classes completely. You were trying to mix them by taking Ball and adding it into VBox. If you added Ball to a Sprite-based app (rather than an mx:Application -based app) you wouldn't have a problem. (You also wouldn't get automatic layout, etc.) Can you suggest a book ? I'm afraid that I haven't had time to investigate what's out there, but I expect that others on the list will have suggestions. It just blows my mind how bad the documentation is We've heard before that our examples are either too simple or too complex. Do you have any suggestions for specific basic concepts that aren't properly covered, or intermediate- level examples that would be useful
Re: [flexcoders] Re: addchild
Gordon Smith wrote: Why would you think that a book called actionscript 3 animation uses only only flash.* classes throughout and avoids the mx.* classes completely ? It was just a guess, because the title didn't include the word Flex. Are you saying that this book actually does use mx.* classes? No it doesn't.You were correct, I just wondered how you would know. Thanks for the explanations.I still don't understand why there's no example of drawing a shape in the flex documentation that doesn't use flash.* classes. I understand that the flash.* and sprite based examples can be children in a flex application, but you seem to be saying that shapes can be created without those classes. If not, then maybe I misunderstood when you said to start with the flex classes. Maybe you were saying, in effect not to start with shapes. It that correct ? Doesn't Flex use actionscript 3? Yes. As I said, you write AS3 to use both the flash.* classes (which are actually implemented in C++) and the mx.* classes (which are themselves implemented in AS3). And, as I said, the former are low-level classes built into the Player while the latter are high-level classes provided with the Flex framework which get linked into your SWF. Doesn't it do animation? Yes, it can do animation. In fact, Flex's mx.effects.* classes ARE animation classes. But we didn't create Flex to make it easier to make balls move around the stage. The focus of Flex is not Flash-style animations and games, although some developers use it to create just that. Flex is really focused on building Rich Internet Applications, and we provide the most common components that are necessary to do that... things like ComboBox, DataGrid, DateChooser, etc. Gordon Smith Adobe Flex SDK Team
RE: [flexcoders] Re: addchild
I think someone else already explained that you can simply draw into a
UIComponent rather than into a Sprite or a Shape. All three of these
have a 'graphics' property which contains a reference to an instance of
the flash.display.Graphics class, which has methods like drawCircle().
But a UIComponent will just work with Flex containers like VBox while
Sprite and Shape require you to do more work.
Here's the Flex Way to create a Ball component (in AS, but you could
also do it in MXML) that extends UIComponent, and then use it in an MXML
app:
Ball.as:
--
package
{
import flash.display.Graphics;
import mx.core.UIComponent;
public class Ball extends UIComponent
{
public function Ball()
{
super();
}
override protected function updateDisplayList(unscaledWidth:Number,
unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
var g:Graphics = graphics;
g.clear();
g.beginFill(0x00);
g.drawEllipse(0, 0, unscaledWidth, unscaledHeight);
g.endFill();
}
}
}
BallExample.mxml:
---
?xml version=1.0 encoding=utf-8?
mx:Application xmlns:mx=http://www.adobe.com/2006/mxml
http://www.adobe.com/2006/mxml xmlns:my=*
my:Ball width=100 height=100/
my:Ball width=200 height=200/
/mx:Application
You can see that Flex has its own ways of doing certain things that you
won't find in a book only about ActionScript. For example, you should do
all of your drawing in an override of the updateDisplayList() method, in
order to work properly with Flex's LayoutManager.
Now you're a Flex component developer! Next you could learn how to make
the ball have some size even if you don't specify 'width' and 'height'
in the mx:Ball tag. Or add a style to determine the ball's color using
CSS. Or add an event handler to change the color when the user clicks on
it. Or let your user create new Ball instances at runtime by doing
something. Or use effects to move the balls around. Or whatever...
As for whether there are examples like this somewhere in our docs... I
sure hope so! But I can't say for sure as I'm on the development team,
not the documentation team, and I haven't personally looked through an
entire documentation set, which is huge.
Gordon Smith
Adobe Flex SDK Team
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
Sent: Monday, January 21, 2008 6:03 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Re: addchild
Gordon Smith wrote:
Why would you think that a book called actionscript 3 animation
uses only only
flash.* classes throughout and avoids the mx.* classes completely ?
It was just a guess, because the title didn't include the word Flex.
Are you saying that this book actually does use mx.* classes?
No it doesn't.You were correct, I just wondered how you would know.
Thanks for the explanations.I still don't understand why there's no
example of drawing a shape in the flex documentation that doesn't use
flash.* classes. I understand that the flash.* and sprite based examples
can be children in a flex application, but you seem to be saying that
shapes can be created without those classes.
If not, then maybe I misunderstood when you said to start with the flex
classes. Maybe you were saying, in effect not to start with shapes.
It that correct ?
Doesn't Flex use actionscript 3?
Yes. As I said, you write AS3 to use both the flash.* classes (which
are actually implemented in C++) and the mx.* classes (which are
themselves implemented in AS3). And, as I said, the former are
low-level classes built into the Player while the latter are
high-level classes provided with the Flex framework which get linked
into your SWF.
Doesn't it do animation?
Yes, it can do animation. In fact, Flex's mx.effects.* classes ARE
animation classes. But we didn't create Flex to make it easier to make
balls move around the stage. The focus of Flex is not Flash-style
animations and games, although some developers use it to create just
that. Flex is really focused on building Rich Internet Applications,
and we provide the most common components that are necessary to do
that... things like ComboBox, DataGrid, DateChooser, etc.
Gordon Smith
Adobe Flex SDK Team
Re: [flexcoders] Re: addchild
Thanks for the example. Its just what I needed.
Gordon Smith wrote:
I think someone else already explained that you can simply draw into a
UIComponent rather than into a Sprite or a Shape. All three of these
have a 'graphics' property which contains a reference to an instance
of the flash.display.Graphics class, which has methods
like drawCircle(). But a UIComponent will just work with Flex
containers like VBox while Sprite and Shape require you to do more work.
Here's the Flex Way to create a Ball component (in AS, but you could
also do it in MXML) that extends UIComponent, and then use it in an
MXML app:
Ball.as:
--
package
{
import flash.display.Graphics;
import mx.core.UIComponent;
public class Ball extends UIComponent
{
public function Ball()
{
super();
}
override protected function updateDisplayList(unscaledWidth:Number,
unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
var g:Graphics = graphics;
g.clear();
g.beginFill(0x00);
g.drawEllipse(0, 0, unscaledWidth, unscaledHeight);
g.endFill();
}
}
}
BallExample.mxml:
---
?xml version=1.0 encoding=utf-8?
mx:Application xmlns:mx=http://www.adobe.com/2006/mxml
http://www.adobe.com/2006/mxml xmlns:my=*
my:Ball width=100 height=100/
my:Ball width=200 height=200/
/mx:Application
You can see that Flex has its own ways of doing certain things that
you won't find in a book only about ActionScript. For example, you
should do all of your drawing in an override of the
updateDisplayList() method, in order to work properly with Flex's
LayoutManager.
Now you're a Flex component developer! Next you could learn how to
make the ball have some size even if you don't specify 'width' and
'height' in the mx:Ball tag. Or add a style to determine the ball's
color using CSS. Or add an event handler to change the color when the
user clicks on it. Or let your user create new Ball instances at
runtime by doing something. Or use effects to move the balls around.
Or whatever...
As for whether there are examples like this somewhere in our docs... I
sure hope so! But I can't say for sure as I'm on the development team,
not the documentation team, and I haven't personally looked through an
entire documentation set, which is huge.
Gordon Smith
Adobe Flex SDK Team
*From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]
*On Behalf Of [EMAIL PROTECTED]
*Sent:* Monday, January 21, 2008 6:03 PM
*To:* flexcoders@yahoogroups.com
*Subject:* Re: [flexcoders] Re: addchild
Gordon Smith wrote:
Why would you think that a book called actionscript 3 animation
uses only only
flash.* classes throughout and avoids the mx.* classes completely ?
It was just a guess, because the title didn't include the word Flex.
Are you saying that this book actually does use mx.* classes?
No it doesn't.You were correct, I just wondered how you would know.
Thanks for the explanations.I still don't understand why there's no
example of drawing a shape in the flex documentation that doesn't use
flash.* classes. I understand that the flash.* and sprite based examples
can be children in a flex application, but you seem to be saying that
shapes can be created without those classes.
If not, then maybe I misunderstood when you said to start with the flex
classes. Maybe you were saying, in effect not to start with shapes.
It that correct ?
Doesn't Flex use actionscript 3?
Yes. As I said, you write AS3 to use both the flash.* classes (which
are actually implemented in C++) and the mx.* classes (which are
themselves implemented in AS3). And, as I said, the former are
low-level classes built into the Player while the latter are
high-level classes provided with the Flex framework which get linked
into your SWF.
Doesn't it do animation?
Yes, it can do animation. In fact, Flex's mx.effects.* classes ARE
animation classes. But we didn't create Flex to make it easier to make
balls move around the stage. The focus of Flex is not Flash-style
animations and games, although some developers use it to create just
that. Flex is really focused on building Rich Internet Applications,
and we provide the most common components that are necessary to do
that... things like ComboBox, DataGrid, DateChooser, etc.
Gordon Smith
Adobe Flex SDK Team
Re: [flexcoders] Re: addchild
I'm still missing something very basic. Why would you think that a book called actionscript 3 animation uses only only flash.* classes throughout and avoids the mx.* classes completely ? Doesn't Flex use actionscript 3? Doesn't it do animation? I bought lots of other books too, thinking they would apply to flex., such as Colin Moock's Essential Actionscript 3.0. I would like to see an example of a ball that only uses mx classes. no kidding, I have looked and looked and looked and I don't see what you might be referring to. I thought I have found it when I got to http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail.html but nothing from that page shows how to make a shape and apply the graphics to it. It just uses existing components. It should have a simple axample of making a shape and adding a stroke. http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html talks about The Graphics object to which the Stroke's styles are applied. but the link is to flash.display http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-detail.html I did a search for mx.display, no results. I tried the example in http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_5.html var squareSize:uint = 100; var square:Shape = new Shape(); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(0, 0, squareSize, squareSize); square.graphics.beginFill(0x00FF00, 0.5); square.graphics.drawRect(200, 0, squareSize, squareSize); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(400, 0, squareSize, squareSize); square.graphics.endFill(); this.addChild(square); And it turns out that these built in methods do not create a UIComponent either. TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::[EMAIL PROTECTED] to mx.core.IUIComponent. What is going on here ? Is this because I'm using flex2 and not flex 3 ? Gordon Smith wrote: The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. I'm not familiar with this book, but from the name I'd expect that they use only flash.* classes throughout and avoid the mx.* classes completely. You were trying to mix them by taking Ball and adding it into VBox. If you added Ball to a Sprite-based app (rather than an mx:Application-based app) you wouldn't have a problem. (You also wouldn't get automatic layout, etc.) Can you suggest a book ? I'm afraid that I haven't had time to investigate what's out there, but I expect that others on the list will have suggestions. It just blows my mind how bad the documentation is We've heard before that our examples are either too simple or too complex. Do you have any suggestions for specific basic concepts that aren't properly covered, or intermediate-level examples that would be useful? If so, I'll pass them on to the doc team. Gordon Smith Adobe Flex SDK Team *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On Behalf Of [EMAIL PROTECTED] *Sent:* Thursday, January 17, 2008 11:37 PM *To:* flexcoders@yahoogroups.com *Subject:* Re: [flexcoders] Re: addchild I just use whatever I can get to work. I'm happy just using flex, and when I use some old flash its only because I don't know any better. The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. When you say: If you're new to Flex, I suggest beginning with complete Flex examples that use standard Flex components and postponing trying to use Sprites-based classes. I'd do that if I could figure out how. The live docs are not good for learning form because the examples are either not complete or are way too complete with too many distracting bells and whistles. They need to start with basic building blocks but they don't seem to understand the concept. It just blows my mind how bad the documentation is. . Can you suggest a book ? Gordon Smith wrote: Built in to the Flash Player are low-level flash.* classes such as Sprite. The Flex framework libraries contains higher-level mx.* classes such as UIComponent, Button, Container, VBox, etc. which add many capabilities beyond those in the Player. The Flex framework was designed with the assumption that most developers would be delighted with the greater capabilities of the high-level classes and not have much interest in the low-level ones, which are primitive by comparison. In hindsight, this was wrongheaded. Many people like you want to mix the two -- generally because the low-level classes can have greater performance or smaller code size, or because you're bringing over code from the Flash-not-Flex world -- and it isn't as easy as it should be to mix them. I hope we can do better
RE: [flexcoders] Re: addchild
What you need to do in flex is the following: (off top of head and not checked) //make a new uicomponent var uic:UIComponent = new UIComponent(); var squareSize:uint = 100; var square:Shape = new Shape(); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(0, 0, squareSize, squareSize); square.graphics.beginFill(0x00FF00, 0.5); square.graphics.drawRect(200, 0, squareSize, squareSize); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(400, 0, squareSize, squareSize); square.graphics.endFill(); // add the shape to the uicomponents displaylist uic.addChild(square); //add the uicomponent to the flex displaylist this.addChild(uic); It drove me a bit mad too, when I first used flex! If you wanted to, you could draw direct to the uicomponent's graphics instead, we had a conversation on this list in the past few days covering that (Jason Merrill and Alex Harui mainly, with the odd post from myself). You may encounter rather a lot of fun with resizing though, as you'll see if you read those posts... (Drawn objects acting as children to components?) hope that helps, Jim. -Original Message- From: flexcoders@yahoogroups.com on behalf of [EMAIL PROTECTED] Sent: Sun 20/01/2008 15:56 To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Re: addchild I'm still missing something very basic. Why would you think that a book called actionscript 3 animation uses only only flash.* classes throughout and avoids the mx.* classes completely ? Doesn't Flex use actionscript 3? Doesn't it do animation? I bought lots of other books too, thinking they would apply to flex., such as Colin Moock's Essential Actionscript 3.0. I would like to see an example of a ball that only uses mx classes. no kidding, I have looked and looked and looked and I don't see what you might be referring to. I thought I have found it when I got to http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail.html but nothing from that page shows how to make a shape and apply the graphics to it. It just uses existing components. It should have a simple axample of making a shape and adding a stroke. http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html talks about The Graphics object to which the Stroke's styles are applied. but the link is to flash.display http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-detail.html I did a search for mx.display, no results. I tried the example in http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_5.html var squareSize:uint = 100; var square:Shape = new Shape(); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(0, 0, squareSize, squareSize); square.graphics.beginFill(0x00FF00, 0.5); square.graphics.drawRect(200, 0, squareSize, squareSize); square.graphics.beginFill(0xFF, 0.5); square.graphics.drawRect(400, 0, squareSize, squareSize); square.graphics.endFill(); this.addChild(square); And it turns out that these built in methods do not create a UIComponent either. TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::[EMAIL PROTECTED] to mx.core.IUIComponent. What is going on here ? Is this because I'm using flex2 and not flex 3 ? Gordon Smith wrote: The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. I'm not familiar with this book, but from the name I'd expect that they use only flash.* classes throughout and avoid the mx.* classes completely. You were trying to mix them by taking Ball and adding it into VBox. If you added Ball to a Sprite-based app (rather than an mx:Application-based app) you wouldn't have a problem. (You also wouldn't get automatic layout, etc.) Can you suggest a book ? I'm afraid that I haven't had time to investigate what's out there, but I expect that others on the list will have suggestions. It just blows my mind how bad the documentation is We've heard before that our examples are either too simple or too complex. Do you have any suggestions for specific basic concepts that aren't properly covered, or intermediate-level examples that would be useful? If so, I'll pass them on to the doc team. Gordon Smith Adobe Flex SDK Team *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On Behalf Of [EMAIL PROTECTED] *Sent:* Thursday, January 17, 2008 11:37 PM *To:* flexcoders@yahoogroups.com *Subject:* Re: [flexcoders] Re: addchild I just use whatever I can get to work. I'm happy just using flex, and when I use some old flash its only because I don't know any better. The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. When you say: If you're new to Flex, I suggest beginning with complete Flex examples
Re: [flexcoders] Re: addchild
Thanks, that helps alot.
Why isn't this in the documentation ?
http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_6.html
It uses import flash.display.Shape;, not import mx.core.UIComponent;
Or if it is somewhere else, where is it ?
Here is the simplest version I could come up with.
import mx.core.UIComponent;
public function makeSquare():void
{
//make a new uicomponent
var uic:UIComponent = new UIComponent();
uic.graphics.beginFill(0xFF, 0.5);
uic.graphics.drawRect(0, 0, 100, 100);
uic.graphics.endFill();
//add the uicomponent to the flex displaylist
this.addChild(uic);
}
Jim Hayes wrote:
What you need to do in flex is the following: (off top of head and not
checked)
//make a new uicomponent
var uic:UIComponent = new UIComponent();
var squareSize:uint = 100;
var square:Shape = new Shape();
square.graphics.beginFill(0xFF, 0.5);
square.graphics.drawRect(0, 0, squareSize, squareSize);
square.graphics.beginFill(0x00FF00, 0.5);
square.graphics.drawRect(200, 0, squareSize, squareSize);
square.graphics.beginFill(0xFF, 0.5);
square.graphics.drawRect(400, 0, squareSize, squareSize);
square.graphics.endFill();
// add the shape to the uicomponents displaylist
uic.addChild(square);
//add the uicomponent to the flex displaylist
this.addChild(uic);
It drove me a bit mad too, when I first used flex!
If you wanted to, you could draw direct to the uicomponent's graphics
instead, we had a conversation on this list in the past few days
covering that (Jason Merrill and Alex Harui mainly, with the odd post
from myself). You may encounter rather a lot of fun with resizing
though, as you'll see if you read those posts...
(Drawn objects acting as children to components?)
hope that helps,
Jim.
-Original Message-
From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
on behalf of [EMAIL PROTECTED] mailto:info1%40reenie.org
Sent: Sun 20/01/2008 15:56
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Subject: Re: [flexcoders] Re: addchild
I'm still missing something very basic. Why would you think that a book
called actionscript 3 animation
uses only only flash.* classes throughout and avoids the mx.* classes
completely ? Doesn't Flex use actionscript 3? Doesn't it do animation?
I bought lots of other books too, thinking they would apply to flex.,
such as Colin Moock's Essential Actionscript 3.0.
I would like to see an example of a ball that only uses mx classes.
no kidding, I have looked and looked and looked and I don't see what you
might be referring to. I thought I have found it when I got to
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail.html
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail.html
but nothing from that page shows how to make a shape and apply the
graphics to it. It just uses existing components. It should have a
simple axample of making a shape and adding a stroke.
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html
talks about The Graphics object to which the Stroke's styles are
applied. but the link is to flash.display
http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-detail.html
http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-detail.html
I did a search for mx.display, no results.
I tried the example in
http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_5.html
http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_5.html
var squareSize:uint = 100;
var square:Shape = new Shape();
square.graphics.beginFill(0xFF, 0.5);
square.graphics.drawRect(0, 0, squareSize, squareSize);
square.graphics.beginFill(0x00FF00, 0.5);
square.graphics.drawRect(200, 0, squareSize, squareSize);
square.graphics.beginFill(0xFF, 0.5);
square.graphics.drawRect(400, 0, squareSize, squareSize);
square.graphics.endFill();
this.addChild(square);
And it turns out that these built in methods do not create a
UIComponent either.
TypeError: Error #1034: Type Coercion failed: cannot convert
flash.display::[EMAIL PROTECTED] to mx.core.IUIComponent.
What is going on here ? Is this because I'm using flex2 and not flex 3 ?
Gordon Smith wrote:
The ball class is from the foundation action script 3 animation book
and there is no import mx.core.UIComponent; in thier example.
I'm not familiar with this book, but from the name I'd expect that
they use only flash.* classes throughout and avoid the mx.* classes
completely. You were trying to mix them by taking Ball and adding it
into VBox. If you added Ball to a Sprite-based app (rather than an
mx:Application-based app) you wouldn't have a problem. (You also
wouldn't get automatic layout, etc.)
Can you suggest a book
Re: [flexcoders] Re: addchild
That is if you do an ActionScript Project instead of a FlexProject
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com
Sent: Sunday, January 20, 2008 1:05:32 PM
Subject: Re: [flexcoders] Re: addchild
Thanks, that helps alot.
Why isn't this in the documentation ?
http://livedocs. adobe.com/ labs/flex3/ html/help. html?content=
Drawing_Vector_ Graphics_ 6.html
It uses import flash.display. Shape;, not import mx.core.UIComponent ;
Or if it is somewhere else, where is it ?
Here is the simplest version I could come up with.
import mx.core.UIComponent ;
public function makeSquare() :void
{
//make a new uicomponent
var uic:UIComponent = new UIComponent( );
uic.graphics. beginFill( 0xFF, 0.5);
uic.graphics. drawRect( 0, 0, 100, 100);
uic.graphics. endFill() ;
//add the uicomponent to the flex displaylist
this.addChild( uic);
}
Jim Hayes wrote:
What you need to do in flex is the following: (off top of head and not
checked)
//make a new uicomponent
var uic:UIComponent = new UIComponent( );
var squareSize:uint = 100;
var square:Shape = new Shape();
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 0, 0, squareSize, squareSize);
square.graphics. beginFill( 0x00FF00, 0.5);
square.graphics. drawRect( 200, 0, squareSize, squareSize);
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 400, 0, squareSize, squareSize);
square.graphics. endFill() ;
// add the shape to the uicomponents displaylist
uic.addChild( square);
//add the uicomponent to the flex displaylist
this.addChild( uic);
It drove me a bit mad too, when I first used flex!
If you wanted to, you could draw direct to the uicomponent' s graphics
instead, we had a conversation on this list in the past few days
covering that (Jason Merrill and Alex Harui mainly, with the odd post
from myself). You may encounter rather a lot of fun with resizing
though, as you'll see if you read those posts...
(Drawn objects acting as children to components?)
hope that helps,
Jim.
-Original Message-
From: [EMAIL PROTECTED] ups.com mailto:flexcoders% 40yahoogroups. com
on behalf of [EMAIL PROTECTED] org mailto:info1% 40reenie. org
Sent: Sun 20/01/2008 15:56
To: [EMAIL PROTECTED] ups.com mailto:flexcoders% 40yahoogroups. com
Subject: Re: [flexcoders] Re: addchild
I'm still missing something very basic. Why would you think that a book
called actionscript 3 animation
uses only only flash.* classes throughout and avoids the mx.* classes
completely ? Doesn't Flex use actionscript 3? Doesn't it do animation?
I bought lots of other books too, thinking they would apply to flex.,
such as Colin Moock's Essential Actionscript 3.0.
I would like to see an example of a ball that only uses mx classes.
no kidding, I have looked and looked and looked and I don't see what you
might be referring to. I thought I have found it when I got to
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/ package-detail.
html
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/
package-detail. html
but nothing from that page shows how to make a shape and apply the
graphics to it. It just uses existing components. It should have a
simple axample of making a shape and adding a stroke.
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/ Stroke.html
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/ Stroke.html
talks about The Graphics object to which the Stroke's styles are
applied. but the link is to flash.display
http://livedocs. adobe.com/ labs/flex3/ langref/flash/ display/package-
detail.html
http://livedocs. adobe.com/ labs/flex3/ langref/flash/ display/package-
detail.html
I did a search for mx.display, no results.
I tried the example in
http://livedocs. adobe.com/ labs/flex3/ html/help. html?content=
Drawing_Vector_ Graphics_ 5.html
http://livedocs. adobe.com/ labs/flex3/ html/help. html?content=
Drawing_Vector_ Graphics_ 5.html
var squareSize:uint = 100;
var square:Shape = new Shape();
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 0, 0, squareSize, squareSize);
square.graphics. beginFill( 0x00FF00, 0.5);
square.graphics. drawRect( 200, 0, squareSize, squareSize);
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 400, 0, squareSize, squareSize);
square.graphics. endFill() ;
this.addChild( square);
And it turns out that these built in methods do not create a
UIComponent either.
TypeError: Error #1034: Type Coercion failed: cannot convert
flash.display: :[EMAIL PROTECTED] to mx.core.IUIComponen t.
What is going on here ? Is this because I'm using flex2 and not flex 3 ?
Gordon Smith wrote:
The ball class is from the foundation action script 3 animation book
and there is no import mx.core.UIComponent ; in thier example.
I'm not familiar with this book, but from the name I'd expect that
they use
Re: [flexcoders] Re: addchild
Yes I know, but where is the documentation for a flex project ?
Sherif Abdou wrote:
That is if you do an ActionScript Project instead of a FlexProject
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com
Sent: Sunday, January 20, 2008 1:05:32 PM
Subject: Re: [flexcoders] Re: addchild
Thanks, that helps alot.
Why isn't this in the documentation ?
http://livedocs. adobe.com/ labs/flex3/ html/help. html?content=
Drawing_Vector_ Graphics_ 6.html
http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_6.html
It uses import flash.display. Shape;, not import mx.core.UIComponent ;
Or if it is somewhere else, where is it ?
Here is the simplest version I could come up with.
import mx.core.UIComponent ;
public function makeSquare() :void
{
//make a new uicomponent
var uic:UIComponent = new UIComponent( );
uic.graphics. beginFill( 0xFF, 0.5);
uic.graphics. drawRect( 0, 0, 100, 100);
uic.graphics. endFill() ;
//add the uicomponent to the flex displaylist
this.addChild( uic);
}
Jim Hayes wrote:
What you need to do in flex is the following: (off top of head and not
checked)
//make a new uicomponent
var uic:UIComponent = new UIComponent( );
var squareSize:uint = 100;
var square:Shape = new Shape();
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 0, 0, squareSize, squareSize);
square.graphics. beginFill( 0x00FF00, 0.5);
square.graphics. drawRect( 200, 0, squareSize, squareSize);
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 400, 0, squareSize, squareSize);
square.graphics. endFill() ;
// add the shape to the uicomponents displaylist
uic.addChild( square);
//add the uicomponent to the flex displaylist
this.addChild( uic);
It drove me a bit mad too, when I first used flex!
If you wanted to, you could draw direct to the uicomponent' s graphics
instead, we had a conversation on this list in the past few days
covering that (Jason Merrill and Alex Harui mainly, with the odd post
from myself). You may encounter rather a lot of fun with resizing
though, as you'll see if you read those posts...
(Drawn objects acting as children to components?)
hope that helps,
Jim.
-Original Message-
From: [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com mailto:flexcoders%
40yahoogroups. com
on behalf of [EMAIL PROTECTED] org mailto:info1%40reenie.org
mailto:info1% 40reenie. org
Sent: Sun 20/01/2008 15:56
To: [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com mailto:flexcoders%
40yahoogroups. com
Subject: Re: [flexcoders] Re: addchild
I'm still missing something very basic. Why would you think that a book
called actionscript 3 animation
uses only only flash.* classes throughout and avoids the mx.* classes
completely ? Doesn't Flex use actionscript 3? Doesn't it do animation?
I bought lots of other books too, thinking they would apply to flex.,
such as Colin Moock's Essential Actionscript 3.0.
I would like to see an example of a ball that only uses mx classes.
no kidding, I have looked and looked and looked and I don't see what you
might be referring to. I thought I have found it when I got to
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/
package-detail. html
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail.html
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/
package-detail. html
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail.html
but nothing from that page shows how to make a shape and apply the
graphics to it. It just uses existing components. It should have a
simple axample of making a shape and adding a stroke.
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/
Stroke.html
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/
Stroke.html
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/Stroke.html
talks about The Graphics object to which the Stroke's styles are
applied. but the link is to flash.display
http://livedocs. adobe.com/ labs/flex3/ langref/flash/
display/package- detail.html
http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-detail.html
http://livedocs. adobe.com/ labs/flex3/ langref/flash/
display/package- detail.html
http://livedocs.adobe.com/labs/flex3/langref/flash/display/package-detail.html
I did a search for mx.display, no results.
I tried the example in
http://livedocs. adobe.com/ labs/flex3/ html/help. html?content=
Drawing_Vector_ Graphics_ 5.html
http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_5.html
http://livedocs. adobe.com/ labs/flex3/ html/help. html?content=
Drawing_Vector_ Graphics_ 5.html
http
RE: [flexcoders] Re: addchild
I can only guess that it's assumed that if you're doing a flex project, then
you're going to be using either a standard component, an extension of one, or a
completely custom one.
In that case, you'd be inside that component as it were (eg writing code in a
component that extended UIComponent), whereupon it would work as in the docs.
(again, check Jason's recent posts, it's a reasonable example of that sort of
thing).
It's a point of view thing really, but now I know flex a little I know that
drawing stuff directly to the stage doesn't really fit in with the model all
that well. You'd have to write a whole lot of routines to handle resizing of
the app, or laying things around the drawing, dealing with z-orders etc.
All of which is kind of the point of using the flex framework (e.g. it does all
that for you, assuming you code to it's guidelines).
I do understand where you're coming from though, I found much the same
frustration/confusion when I first came from flash to flex, it took me a little
while to get my head round it (and I still get a few nasty reminders that I
don't know everything yet, by far ;)).
But if you persevere with it, I hope you'll find that it pays of quite rapidly.
It did for me.
-Original Message-
From: flexcoders@yahoogroups.com on behalf of [EMAIL PROTECTED]
Sent: Sun 20/01/2008 21:20
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Re: addchild
Yes I know, but where is the documentation for a flex project ?
Sherif Abdou wrote:
That is if you do an ActionScript Project instead of a FlexProject
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com
Sent: Sunday, January 20, 2008 1:05:32 PM
Subject: Re: [flexcoders] Re: addchild
Thanks, that helps alot.
Why isn't this in the documentation ?
http://livedocs. adobe.com/ labs/flex3/ html/help. html?content=
Drawing_Vector_ Graphics_ 6.html
http://livedocs.adobe.com/labs/flex3/html/help.html?content=Drawing_Vector_Graphics_6.html
It uses import flash.display. Shape;, not import mx.core.UIComponent ;
Or if it is somewhere else, where is it ?
Here is the simplest version I could come up with.
import mx.core.UIComponent ;
public function makeSquare() :void
{
//make a new uicomponent
var uic:UIComponent = new UIComponent( );
uic.graphics. beginFill( 0xFF, 0.5);
uic.graphics. drawRect( 0, 0, 100, 100);
uic.graphics. endFill() ;
//add the uicomponent to the flex displaylist
this.addChild( uic);
}
Jim Hayes wrote:
What you need to do in flex is the following: (off top of head and not
checked)
//make a new uicomponent
var uic:UIComponent = new UIComponent( );
var squareSize:uint = 100;
var square:Shape = new Shape();
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 0, 0, squareSize, squareSize);
square.graphics. beginFill( 0x00FF00, 0.5);
square.graphics. drawRect( 200, 0, squareSize, squareSize);
square.graphics. beginFill( 0xFF, 0.5);
square.graphics. drawRect( 400, 0, squareSize, squareSize);
square.graphics. endFill() ;
// add the shape to the uicomponents displaylist
uic.addChild( square);
//add the uicomponent to the flex displaylist
this.addChild( uic);
It drove me a bit mad too, when I first used flex!
If you wanted to, you could draw direct to the uicomponent' s graphics
instead, we had a conversation on this list in the past few days
covering that (Jason Merrill and Alex Harui mainly, with the odd post
from myself). You may encounter rather a lot of fun with resizing
though, as you'll see if you read those posts...
(Drawn objects acting as children to components?)
hope that helps,
Jim.
-Original Message-
From: [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com mailto:flexcoders%
40yahoogroups. com
on behalf of [EMAIL PROTECTED] org mailto:info1%40reenie.org
mailto:info1% 40reenie. org
Sent: Sun 20/01/2008 15:56
To: [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com mailto:flexcoders%
40yahoogroups. com
Subject: Re: [flexcoders] Re: addchild
I'm still missing something very basic. Why would you think that a book
called actionscript 3 animation
uses only only flash.* classes throughout and avoids the mx.* classes
completely ? Doesn't Flex use actionscript 3? Doesn't it do animation?
I bought lots of other books too, thinking they would apply to flex.,
such as Colin Moock's Essential Actionscript 3.0.
I would like to see an example of a ball that only uses mx classes.
no kidding, I have looked and looked and looked and I don't see what you
might be referring to. I thought I have found it when I got to
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/
package-detail. html
http://livedocs.adobe.com/labs/flex3/langref/mx/graphics/package-detail.html
http://livedocs. adobe.com/ labs/flex3/ langref/mx/ graphics/
package
Re: [flexcoders] Re: addchild
Now I'm really confused. How do I make a ball using standard Flex
components ? Everything I've seen uses a sprite.
Where can I find complete Flex examples that use standard Flex
components ?
Gordon Smith wrote:
Built in to the Flash Player are low-level flash.* classes such as
Sprite. The Flex framework libraries contains higher-level mx.*
classes such as UIComponent, Button, Container, VBox, etc. which add
many capabilities beyond those in the Player.
The Flex framework was designed with the assumption that most
developers would be delighted with the greater capabilities of
the high-level classes and not have much interest in the low-level
ones, which are primitive by comparison. In hindsight, this was
wrongheaded. Many people like you want to mix the two -- generally
because the low-level classes can have greater performance or smaller
code size, or because you're bringing over code from the
Flash-not-Flex world -- and it isn't as easy as it should be to mix
them. I hope we can do better in a future release.
You write AS3 code to use both flash.* and mx.* classes, and, once you
understand a few rules, you can use both sets of classes in a Flex
application. But it isn't completely trivial, so it's dangerous to
just take a simple Sprite-based class and expect it to just work in
Flex.
The problem you're running into here is that Flex Containers such as
VBox assume that their children are high-level UIComponents rather
than just low-level Sprites. One reason is that containers do
automatic layout management, which requires code in the children to
report how big the child wants to be, etc.
So currently you have to work around this assumption by doing things
like creating an intermediate UIComponent to parent the Sprite or
adding the Sprite to the Container as a raw child (see the
rawChildren property).
If you're new to Flex, I suggest beginning with complete Flex examples
that use standard Flex components and postponing trying to use
Sprites-based classes. You'll make more progress, gain confidence, and
then be in a better position to understand how to take advantage of
Sprites later.
Gordon Smith
Adobe Flex SDK Team
*From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]
*On Behalf Of *rueter007
*Sent:* Thursday, January 17, 2008 10:12 PM
*To:* flexcoders@yahoogroups.com
*Subject:* [flexcoders] Re: addchild
you cannot add sprites directly that way. you can do the following.
var ballParent: UIComponent = new UIComponent();
ballParent.addChild(ball);
vbox.addChild(ballParent);
and ofcourse, you have to set the width, height etc.
- venkat
http://www.venkatj.com http://www.venkatj.com
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com, [EMAIL PROTECTED] [EMAIL
PROTECTED] wrote:
This is the entire ball class
package com.oreilly.programmingflex.states {
import flash.display.Sprite;
public class Ball extends Sprite {
private var radius:Number;
private var color:uint;
public function Ball(radius:Number=40, color:uint=0xff) {
this.radius = radius;
this.color = color;
init();
}
public function init():void {
graphics.beginFill(color);
graphics.drawCircle(0, 0, radius);
graphics.endFill();
}
}
}
Sherif Abdou wrote:
it means that the ball is not a IUIcomponenet which it is required
for
it to be added on stage, show me a bit of the ball class code so i
can
know
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Sent: Thursday, January 17, 2008 11:38:26 PM
Subject: Re: [flexcoders] addchild
OK thanks. Now when I try to use addChild, I get this error. What does
it mean ?
myball=new Ball;
addChild(myball) ;
TypeError: Error #1034: Type Coercion failed: cannot convert
com.oreilly. programmingflex. states::Ball@ 5787299 to
mx.core.IUIComponen t.
at
mx.core::Container/http://www.adobe. com/2006/ flex/mx/internal
::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild()
at mx.core::Container/ addChildAt( )
at mx.core::Container/ addChild( )
at Main/::initializeHa ndler()
at Main/___Application 1_initialize( )
at
flash.events: :EventDispatcher /flash.events: EventDispatcher:
:dispatchEventFu nction()
at flash.events: :EventDispatcher /dispatchEvent( )
at mx.core::UIComponen t/dispatchEvent( )
at mx.core::UIComponen t/set processedDescriptor s()
at mx.core::Container/ createComponents FromDescriptors( )
Sherif Abdou wrote:
addChild not addchild
- Original Message
From: [EMAIL PROTECTED] org mailto:info1%40reenie.org
[EMAIL PROTECTED]
org mailto:info1%40reenie.org
To: [EMAIL
RE: [flexcoders] Re: addchild
This may help: http://weblogs.thekeunster.com/?p=6 Jason Merrill Bank of America GTO LLD Solutions Design Development eTools Multimedia Bank of America Flash Platform Developer Community
Re: [flexcoders] Re: addchild
Ok thanks, I tried that, Now I get this error,
Type was not found or was not a compile-time constant: UIComponent.
rueter007 wrote:
you cannot add sprites directly that way. you can do the following.
var ballParent: UIComponent = new UIComponent();
ballParent.addChild(ball);
vbox.addChild(ballParent);
and ofcourse, you have to set the width, height etc.
- venkat
http://www.venkatj.com http://www.venkatj.com
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com, [EMAIL PROTECTED] [EMAIL
PROTECTED] wrote:
This is the entire ball class
package com.oreilly.programmingflex.states {
import flash.display.Sprite;
public class Ball extends Sprite {
private var radius:Number;
private var color:uint;
public function Ball(radius:Number=40, color:uint=0xff) {
this.radius = radius;
this.color = color;
init();
}
public function init():void {
graphics.beginFill(color);
graphics.drawCircle(0, 0, radius);
graphics.endFill();
}
}
}
Sherif Abdou wrote:
it means that the ball is not a IUIcomponenet which it is required
for
it to be added on stage, show me a bit of the ball class code so i
can
know
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Sent: Thursday, January 17, 2008 11:38:26 PM
Subject: Re: [flexcoders] addchild
OK thanks. Now when I try to use addChild, I get this error. What does
it mean ?
myball=new Ball;
addChild(myball) ;
TypeError: Error #1034: Type Coercion failed: cannot convert
com.oreilly. programmingflex. states::Ball@ 5787299 to
mx.core.IUIComponen t.
at
mx.core::Container/http://www.adobe. com/2006/ flex/mx/internal
::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild()
at mx.core::Container/ addChildAt( )
at mx.core::Container/ addChild( )
at Main/::initializeHa ndler()
at Main/___Application 1_initialize( )
at
flash.events: :EventDispatcher /flash.events: EventDispatcher:
:dispatchEventFu nction()
at flash.events: :EventDispatcher /dispatchEvent( )
at mx.core::UIComponen t/dispatchEvent( )
at mx.core::UIComponen t/set processedDescriptor s()
at mx.core::Container/ createComponents FromDescriptors( )
Sherif Abdou wrote:
addChild not addchild
- Original Message
From: [EMAIL PROTECTED] org mailto:info1%40reenie.org
[EMAIL PROTECTED]
org mailto:info1%40reenie.org
To: [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com
Sent: Thursday, January 17, 2008 11:03:15 PM
Subject: [flexcoders] addchild
I have a ball class. I can make a ball. How do I add it to the
stage ?
I have seem plenty of examples, and they use addchild.
Every time I try to use addchild, I get this error:
Error: Call to a possibly undefined method addChild.
or if I try to attach it to an existing element
such as mx:VBox id=vbox
vbox.addchild( ball);
I get :Error: Access of undefined property vbox.
So what can I put addchild on ?
- - - - - -
Never miss a thing. Make Yahoo your homepage.
http://us.rd. yahoo.com/ evt=51438/ *http://www. yahoo.com/ r/hs
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Re: [flexcoders] Re: addchild
import mx.core.UIComponent;
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com
Sent: Friday, January 18, 2008 5:28:02 PM
Subject: Re: [flexcoders] Re: addchild
Ok thanks, I tried that, Now I get this error,
Type was not found or was not a compile-time constant: UIComponent.
rueter007 wrote:
you cannot add sprites directly that way. you can do the following.
var ballParent: UIComponent = new UIComponent( );
ballParent.addChild (ball);
vbox.addChild( ballParent) ;
and ofcourse, you have to set the width, height etc.
- venkat
http://www.venkatj. com http://www.venkatj. com
--- In [EMAIL PROTECTED] ups.com
mailto:flexcoders% 40yahoogroups. com, [EMAIL PROTECTED] [EMAIL
PROTECTED] wrote:
This is the entire ball class
package com.oreilly. programmingflex. states {
import flash.display. Sprite;
public class Ball extends Sprite {
private var radius:Number;
private var color:uint;
public function Ball(radius: Number=40, color:uint=0xff ) {
this.radius = radius;
this.color = color;
init();
}
public function init():void {
graphics.beginFill( color);
graphics.drawCircle (0, 0, radius);
graphics.endFill( );
}
}
}
Sherif Abdou wrote:
it means that the ball is not a IUIcomponenet which it is required
for
it to be added on stage, show me a bit of the ball class code so i
can
know
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: [EMAIL PROTECTED] ups.com mailto:flexcoders% 40yahoogroups. com
Sent: Thursday, January 17, 2008 11:38:26 PM
Subject: Re: [flexcoders] addchild
OK thanks. Now when I try to use addChild, I get this error. What does
it mean ?
myball=new Ball;
addChild(myball) ;
TypeError: Error #1034: Type Coercion failed: cannot convert
com.oreilly. programmingflex. states::Ball@ 5787299 to
mx.core.IUIComponen t.
at
mx.core::Container/http://www.adobe. com/2006/ flex/mx/internal
::addingChild
http://www.adobe. com/2006/ flex/mx/internal ::addingChild
http://www.adobe. com/2006/ flex/mx/internal ::addingChild()
at mx.core::Container/ addChildAt( )
at mx.core::Container/ addChild( )
at Main/::initializeHa ndler()
at Main/___Application 1_initialize( )
at
flash.events: :EventDispatcher /flash.events: EventDispatcher:
:dispatchEventFu nction()
at flash.events: :EventDispatcher /dispatchEvent( )
at mx.core::UIComponen t/dispatchEvent( )
at mx.core::UIComponen t/set processedDescriptor s()
at mx.core::Container/ createComponents FromDescriptors( )
Sherif Abdou wrote:
addChild not addchild
- Original Message
From: [EMAIL PROTECTED] org mailto:info1% 40reenie. org
[EMAIL PROTECTED]
org mailto:info1% 40reenie. org
To: [EMAIL PROTECTED] ups.com
mailto:flexcoders% 40yahoogroups. com
Sent: Thursday, January 17, 2008 11:03:15 PM
Subject: [flexcoders] addchild
I have a ball class. I can make a ball. How do I add it to the
stage ?
I have seem plenty of examples, and they use addchild.
Every time I try to use addchild, I get this error:
Error: Call to a possibly undefined method addChild.
or if I try to attach it to an existing element
such as mx:VBox id=vbox
vbox.addchild( ball);
I get :Error: Access of undefined property vbox.
So what can I put addchild on ?
- - - - - -
Never miss a thing. Make Yahoo your homepage.
http://us.rd. yahoo.com/ evt=51438/ *http://www. yahoo.com/ r/hs
http://us.rd. yahoo.com/ evt=51438/ *http://www. yahoo.com/ r/hs
http://us.rd. yahoo.com/ evt=51438/ *http://www. yahoo.com/ r/hs
- - - - - -
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;_ylt=Ahu06i62sR 8HDtDypao8Wcj9tA cJ%20
!--
#ygrp-mkp{
border:1px solid #d8d8d8;font-family:Arial;margin:14px 0px;padding:0px 14px;}
#ygrp-mkp hr{
border:1px solid #d8d8d8;}
#ygrp-mkp #hd{
color:#628c2a;font-size:85%;font-weight:bold;line-height:122%;margin:10px 0px;}
#ygrp-mkp #ads{
margin-bottom:10px;}
#ygrp-mkp .ad{
padding:0 0;}
#ygrp-mkp .ad a{
color:#ff;text-decoration:none;}
--
!--
#ygrp-sponsor #ygrp-lc{
font-family:Arial;}
#ygrp-sponsor #ygrp-lc #hd{
margin:10px 0px;font-weight:bold;font-size:78%;line-height:122%;}
#ygrp-sponsor #ygrp-lc .ad{
margin-bottom:10px;padding:0 0;}
--
!--
#ygrp-mlmsg {font-size:13px;font-family:arial
Re: [flexcoders] Re: addchild
Ok thanks, I can finally see the ball.
I did look on
http://livedocs.adobe.com/flex/2/langref/mx/core/UIComponent.html
It should have this line somewhere on this page:
import.mx.core.UIComponent
For the world of me I don't know why they don't have that on that page.
Max Frigge wrote:
import mx.core.UIComponent;
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com
Sent: Friday, January 18, 2008 5:28:02 PM
Subject: Re: [flexcoders] Re: addchild
Ok thanks, I tried that, Now I get this error,
Type was not found or was not a compile-time constant: UIComponent.
rueter007 wrote:
you cannot add sprites directly that way. you can do the following.
var ballParent: UIComponent = new UIComponent( );
ballParent.addChild (ball);
vbox.addChild( ballParent) ;
and ofcourse, you have to set the width, height etc.
- venkat
http://www.venkatj. com http://www.venkatj.com
http://www.venkatj. com http://www.venkatj.com
--- In [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders% 40yahoogroups. com, [EMAIL PROTECTED] [EMAIL
PROTECTED] wrote:
This is the entire ball class
package com.oreilly. programmingflex. states {
import flash.display. Sprite;
public class Ball extends Sprite {
private var radius:Number;
private var color:uint;
public function Ball(radius: Number=40, color:uint=0xff ) {
this.radius = radius;
this.color = color;
init();
}
public function init():void {
graphics.beginFill( color);
graphics.drawCircle (0, 0, radius);
graphics.endFill( );
}
}
}
Sherif Abdou wrote:
it means that the ball is not a IUIcomponenet which it is required
for
it to be added on stage, show me a bit of the ball class code so i
can
know
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com mailto:flexcoders%
40yahoogroups. com
Sent: Thursday, January 17, 2008 11:38:26 PM
Subject: Re: [flexcoders] addchild
OK thanks. Now when I try to use addChild, I get this error.
What does
it mean ?
myball=new Ball;
addChild(myball) ;
TypeError: Error #1034: Type Coercion failed: cannot convert
com.oreilly. programmingflex. states::Ball@ 5787299 to
mx.core.IUIComponen t.
at
mx.core::Container/http://www.adobe. com/2006/ flex/mx/internal
::addingChild
http://www.adobe. com/2006/ flex/mx/internal ::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild
http://www.adobe. com/2006/ flex/mx/internal ::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild()
at mx.core::Container/ addChildAt( )
at mx.core::Container/ addChild( )
at Main/::initializeHa ndler()
at Main/___Application 1_initialize( )
at
flash.events: :EventDispatcher /flash.events: EventDispatcher:
:dispatchEventFu nction()
at flash.events: :EventDispatcher /dispatchEvent( )
at mx.core::UIComponen t/dispatchEvent( )
at mx.core::UIComponen t/set processedDescriptor s()
at mx.core::Container/ createComponents FromDescriptors( )
Sherif Abdou wrote:
addChild not addchild
- Original Message
From: [EMAIL PROTECTED] org mailto:info1% 40reenie. org
[EMAIL PROTECTED]
org mailto:info1% 40reenie. org
To: [EMAIL PROTECTED] ups.com http://ups.com
mailto:flexcoders% 40yahoogroups. com
Sent: Thursday, January 17, 2008 11:03:15 PM
Subject: [flexcoders] addchild
I have a ball class. I can make a ball. How do I add it to the
stage ?
I have seem plenty of examples, and they use addchild.
Every time I try to use addchild, I get this error:
Error: Call to a possibly undefined method addChild.
or if I try to attach it to an existing element
such as mx:VBox id=vbox
vbox.addchild( ball);
I get :Error: Access of undefined property vbox.
So what can I put addchild on ?
- - - - - -
Never miss a thing. Make Yahoo your homepage.
http://us.rd. yahoo.com/ http://yahoo.com/ evt=51438/
*http://www. yahoo.com/ r http://yahoo.com//hs
http://us.rd. yahoo.com/ evt=51438/ *http://www. yahoo.com/
r/hs http://us.rd.yahoo.com/evt=51438/*http://www.yahoo.com/r/hs
http://us.rd. yahoo.com/ evt=51438/ *http://www. yahoo.com/ r/hs
http://us.rd.yahoo.com/evt=51438/*http://www.yahoo.com/r/hs
- - - - - -
Be a better friend, newshound, and know-it-all with Yahoo! Mobile.
Try
it now.
http://us.rd. yahoo.com/ evt=51733/ *http://mobile. yahoo.com/
;_ylt=Ahu06i62sR 8HDtDypao8Wcj9tA cJ%20
http://us.rd.yahoo.com/evt=51733/*http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ%20
RE: [flexcoders] Re: addchild
Built in to the Flash Player are low-level flash.* classes such as
Sprite. The Flex framework libraries contains higher-level mx.* classes
such as UIComponent, Button, Container, VBox, etc. which add many
capabilities beyond those in the Player.
The Flex framework was designed with the assumption that most developers
would be delighted with the greater capabilities of the high-level
classes and not have much interest in the low-level ones, which are
primitive by comparison. In hindsight, this was wrongheaded. Many people
like you want to mix the two -- generally because the low-level classes
can have greater performance or smaller code size, or because you're
bringing over code from the Flash-not-Flex world -- and it isn't as easy
as it should be to mix them. I hope we can do better in a future
release.
You write AS3 code to use both flash.* and mx.* classes, and, once you
understand a few rules, you can use both sets of classes in a Flex
application. But it isn't completely trivial, so it's dangerous to just
take a simple Sprite-based class and expect it to just work in Flex.
The problem you're running into here is that Flex Containers such as
VBox assume that their children are high-level UIComponents rather than
just low-level Sprites. One reason is that containers do automatic
layout management, which requires code in the children to report how big
the child wants to be, etc.
So currently you have to work around this assumption by doing things
like creating an intermediate UIComponent to parent the Sprite or adding
the Sprite to the Container as a raw child (see the rawChildren
property).
If you're new to Flex, I suggest beginning with complete Flex examples
that use standard Flex components and postponing trying to use
Sprites-based classes. You'll make more progress, gain confidence, and
then be in a better position to understand how to take advantage of
Sprites later.
Gordon Smith
Adobe Flex SDK Team
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of rueter007
Sent: Thursday, January 17, 2008 10:12 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: addchild
you cannot add sprites directly that way. you can do the following.
var ballParent: UIComponent = new UIComponent();
ballParent.addChild(ball);
vbox.addChild(ballParent);
and ofcourse, you have to set the width, height etc.
- venkat
http://www.venkatj.com http://www.venkatj.com
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
This is the entire ball class
package com.oreilly.programmingflex.states {
import flash.display.Sprite;
public class Ball extends Sprite {
private var radius:Number;
private var color:uint;
public function Ball(radius:Number=40, color:uint=0xff) {
this.radius = radius;
this.color = color;
init();
}
public function init():void {
graphics.beginFill(color);
graphics.drawCircle(0, 0, radius);
graphics.endFill();
}
}
}
Sherif Abdou wrote:
it means that the ball is not a IUIcomponenet which it is required
for
it to be added on stage, show me a bit of the ball class code so i
can
know
- Original Message
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Sent: Thursday, January 17, 2008 11:38:26 PM
Subject: Re: [flexcoders] addchild
OK thanks. Now when I try to use addChild, I get this error. What
does
it mean ?
myball=new Ball;
addChild(myball) ;
TypeError: Error #1034: Type Coercion failed: cannot convert
com.oreilly. programmingflex. states::Ball@ 5787299 to
mx.core.IUIComponen t.
at
mx.core::Container/http://www.adobe. com/2006/ flex/mx/internal
::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild
http://www.adobe.com/2006/flex/mx/internal::addingChild ()
at mx.core::Container/ addChildAt( )
at mx.core::Container/ addChild( )
at Main/::initializeHa ndler()
at Main/___Application 1_initialize( )
at
flash.events: :EventDispatcher /flash.events: EventDispatcher:
:dispatchEventFu nction()
at flash.events: :EventDispatcher /dispatchEvent( )
at mx.core::UIComponen t/dispatchEvent( )
at mx.core::UIComponen t/set processedDescriptor s()
at mx.core::Container/ createComponents FromDescriptors( )
Sherif Abdou wrote:
addChild not addchild
- Original Message
From: [EMAIL PROTECTED] org mailto:info1%40reenie.org
[EMAIL PROTECTED]
org mailto:info1%40reenie.org
To: [EMAIL PROTECTED] ups.com
mailto:flexcoders%40yahoogroups.com
Sent: Thursday, January 17, 2008 11:03:15 PM
Subject: [flexcoders] addchild
I have a ball class. I can make a ball. How do I add it to the
stage ?
I have seem plenty of examples, and they use addchild.
Every time I try to use addchild, I get this error:
Error: Call to a possibly undefined method addChild.
or if I try to
RE: [flexcoders] Re: addchild
The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. I'm not familiar with this book, but from the name I'd expect that they use only flash.* classes throughout and avoid the mx.* classes completely. You were trying to mix them by taking Ball and adding it into VBox. If you added Ball to a Sprite-based app (rather than an mx:Application-based app) you wouldn't have a problem. (You also wouldn't get automatic layout, etc.) Can you suggest a book ? I'm afraid that I haven't had time to investigate what's out there, but I expect that others on the list will have suggestions. It just blows my mind how bad the documentation is We've heard before that our examples are either too simple or too complex. Do you have any suggestions for specific basic concepts that aren't properly covered, or intermediate-level examples that would be useful? If so, I'll pass them on to the doc team. Gordon Smith Adobe Flex SDK Team From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, January 17, 2008 11:37 PM To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Re: addchild I just use whatever I can get to work. I'm happy just using flex, and when I use some old flash its only because I don't know any better. The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. When you say: If you're new to Flex, I suggest beginning with complete Flex examples that use standard Flex components and postponing trying to use Sprites-based classes. I'd do that if I could figure out how. The live docs are not good for learning form because the examples are either not complete or are way too complete with too many distracting bells and whistles. They need to start with basic building blocks but they don't seem to understand the concept. It just blows my mind how bad the documentation is. . Can you suggest a book ? Gordon Smith wrote: Built in to the Flash Player are low-level flash.* classes such as Sprite. The Flex framework libraries contains higher-level mx.* classes such as UIComponent, Button, Container, VBox, etc. which add many capabilities beyond those in the Player. The Flex framework was designed with the assumption that most developers would be delighted with the greater capabilities of the high-level classes and not have much interest in the low-level ones, which are primitive by comparison. In hindsight, this was wrongheaded. Many people like you want to mix the two -- generally because the low-level classes can have greater performance or smaller code size, or because you're bringing over code from the Flash-not-Flex world -- and it isn't as easy as it should be to mix them. I hope we can do better in a future release. You write AS3 code to use both flash.* and mx.* classes, and, once you understand a few rules, you can use both sets of classes in a Flex application. But it isn't completely trivial, so it's dangerous to just take a simple Sprite-based class and expect it to just work in Flex. The problem you're running into here is that Flex Containers such as VBox assume that their children are high-level UIComponents rather than just low-level Sprites. One reason is that containers do automatic layout management, which requires code in the children to report how big the child wants to be, etc. So currently you have to work around this assumption by doing things like creating an intermediate UIComponent to parent the Sprite or adding the Sprite to the Container as a raw child (see the rawChildren property). If you're new to Flex, I suggest beginning with complete Flex examples that use standard Flex components and postponing trying to use Sprites-based classes. You'll make more progress, gain confidence, and then be in a better position to understand how to take advantage of Sprites later.
Re: [flexcoders] Re: addchild
I just use whatever I can get to work. I'm happy just using flex, and when I use some old flash its only because I don't know any better. The ball class is from the foundation action script 3 animation book and there is no import mx.core.UIComponent; in thier example. When you say: If you're new to Flex, I suggest beginning with complete Flex examples that use standard Flex components and postponing trying to use Sprites-based classes. I'd do that if I could figure out how. The live docs are not good for learning form because the examples are either not complete or are way too complete with too many distracting bells and whistles. They need to start with basic building blocks but they don't seem to understand the concept. It just blows my mind how bad the documentation is. . Can you suggest a book ? Gordon Smith wrote: Built in to the Flash Player are low-level flash.* classes such as Sprite. The Flex framework libraries contains higher-level mx.* classes such as UIComponent, Button, Container, VBox, etc. which add many capabilities beyond those in the Player. The Flex framework was designed with the assumption that most developers would be delighted with the greater capabilities of the high-level classes and not have much interest in the low-level ones, which are primitive by comparison. In hindsight, this was wrongheaded. Many people like you want to mix the two -- generally because the low-level classes can have greater performance or smaller code size, or because you're bringing over code from the Flash-not-Flex world -- and it isn't as easy as it should be to mix them. I hope we can do better in a future release. You write AS3 code to use both flash.* and mx.* classes, and, once you understand a few rules, you can use both sets of classes in a Flex application. But it isn't completely trivial, so it's dangerous to just take a simple Sprite-based class and expect it to just work in Flex. The problem you're running into here is that Flex Containers such as VBox assume that their children are high-level UIComponents rather than just low-level Sprites. One reason is that containers do automatic layout management, which requires code in the children to report how big the child wants to be, etc. So currently you have to work around this assumption by doing things like creating an intermediate UIComponent to parent the Sprite or adding the Sprite to the Container as a raw child (see the rawChildren property). If you're new to Flex, I suggest beginning with complete Flex examples that use standard Flex components and postponing trying to use Sprites-based classes. You'll make more progress, gain confidence, and then be in a better position to understand how to take advantage of Sprites later.
RE: [flexcoders] Re: addChild creationCompleteEffect
Maybe try your effect on the showEffect rather than the
creationCompleteEffect? I haven't tried this to see if it works... just
a suggestion.
Joan
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of johantrax
Sent: Thursday, October 18, 2007 8:16 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: addChild creationCompleteEffect
Nobody with any tips? :(
--Johan
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
, johantrax [EMAIL PROTECTED]
wrote:
Hi all,
I create a TitleWindow with the PopupManager. The titlewindow should
dynamically contain a canvas.
So how did I do that. I gave the titlewindow a property called
'contentForm' which contains a canvas. Then in the
creationComplete-event of the titlewindow, addChild(contentForm) is
called for adding the canvas to the titlewindow.
So far, so good...
Next I wanted to create some popup/popout effect on the titlewindow.
So I set creationCompleteEffect to 'popup', a mx:Parallel of
zoom/move/fade. I also set the removedEffect to 'popout', a
mx:Sequence.
What's the problem? The 'popup'-effect should move the titlewindow
from the top to the center of the application. I figured this move-tag
would give me what needed:
mx:Move
yFrom={-this.height} yTo={(Application.application.height -
this.height) / 2}
xFrom={Application.application.width / 2}
xTo={(Application.application.width - this.width) / 2}
/
However, this isn't working as expected.
The only logical explanation I can come up with is the following:
creationComplete and creationCompleteEffect both get executed when the
creationcomplete-Event is fired. Since the childComponent is only
added during the handling of that event, the effect playing is not yet
aware of the change in size.
This lead me into the FlexDocs, where I learned that adding children
should be part of the initialisationEvent.
So I assigned my init()method to the initialize-listener instead of
creationComplete.
However, this is giving me the following errors:
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at mx.containers::Panel/::showTitleBar()
at mx.containers::Panel/mx.containers:Panel::layoutChrome()
at mx.core::Container/mx.core:Container::updateDisplayList()
...
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at components::PopupFormWindow/::init()
at components::PopupFormWindow/___TitleWindow1_initialize()
at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEven
tFunction()
...
My init-method is as follows:
private function init():void {
//create inner form
contentForm.currentState = this.currentState;
(contentForm as customerPopupForm).ac = this.ac;
this.addChild(contentForm);
}
Any help, push in the right direction is really appreciated. I will
provide the full errormsgs/more code if needed, but I consider this to
be a long post already ;)
--Johan
RE: [flexcoders] Re: addChild creationCompleteEffect
One more suggestion to try. You can listen for the childAdd event on the
TitleWindow. Then, in the event handler, play the effect on the Canvas.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Joan Lafferty
Sent: Thursday, October 18, 2007 10:06 AM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] Re: addChild creationCompleteEffect
Maybe try your effect on the showEffect rather than the
creationCompleteEffect? I haven't tried this to see if it works... just
a suggestion.
Joan
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of johantrax
Sent: Thursday, October 18, 2007 8:16 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: addChild creationCompleteEffect
Nobody with any tips? :(
--Johan
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
, johantrax [EMAIL PROTECTED]
wrote:
Hi all,
I create a TitleWindow with the PopupManager. The titlewindow should
dynamically contain a canvas.
So how did I do that. I gave the titlewindow a property called
'contentForm' which contains a canvas. Then in the
creationComplete-event of the titlewindow, addChild(contentForm) is
called for adding the canvas to the titlewindow.
So far, so good...
Next I wanted to create some popup/popout effect on the titlewindow.
So I set creationCompleteEffect to 'popup', a mx:Parallel of
zoom/move/fade. I also set the removedEffect to 'popout', a
mx:Sequence.
What's the problem? The 'popup'-effect should move the titlewindow
from the top to the center of the application. I figured this move-tag
would give me what needed:
mx:Move
yFrom={-this.height} yTo={(Application.application.height -
this.height) / 2}
xFrom={Application.application.width / 2}
xTo={(Application.application.width - this.width) / 2}
/
However, this isn't working as expected.
The only logical explanation I can come up with is the following:
creationComplete and creationCompleteEffect both get executed when the
creationcomplete-Event is fired. Since the childComponent is only
added during the handling of that event, the effect playing is not yet
aware of the change in size.
This lead me into the FlexDocs, where I learned that adding children
should be part of the initialisationEvent.
So I assigned my init()method to the initialize-listener instead of
creationComplete.
However, this is giving me the following errors:
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at mx.containers::Panel/::showTitleBar()
at mx.containers::Panel/mx.containers:Panel::layoutChrome()
at mx.core::Container/mx.core:Container::updateDisplayList()
...
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
at components::PopupFormWindow/::init()
at components::PopupFormWindow/___TitleWindow1_initialize()
at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEven
tFunction()
...
My init-method is as follows:
private function init():void {
//create inner form
contentForm.currentState = this.currentState;
(contentForm as customerPopupForm).ac = this.ac;
this.addChild(contentForm);
}
Any help, push in the right direction is really appreciated. I will
provide the full errormsgs/more code if needed, but I consider this to
be a long post already ;)
--Johan
RE: [flexcoders] Re: addchild error
Ok, but why would you want to add the same view twice? Do you want to add two different instances? From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of wifi19 Sent: Wednesday, March 28, 2007 12:07 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: addchild error Hie, and thanks i'd like make a windows with every page that i want to print before printing to select it addpage is for print job isn't it ? --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui [EMAIL PROTECTED] wrote: You can't add a child twice. Did you mean to call addPage? From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of wifi19 Sent: Tuesday, March 27, 2007 1:57 PM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] addchild error I am having some trouble with addchild var thePrintView:FormPrintView = new FormPrintView(); //myHbox.addChild(thePrintView); var _caPan:Canvas = new Canvas(); _caPan.height=300; _caPan.width = 200; _caPan.addChild(thePrintView); _caPan.addChild(thePrintView); second addchild generate a error RangeError: Error #2006: L'index indiqué sort des limites. at flash.display::DisplayObjectContainer/getChildAt() at mx.core::Container/getChildAt() at mx.core::UIComponent/set document() at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::addin http://www.adobe.com/2006/flex/mx/internal::addin http://www.adobe.com/2006/flex/mx/internal::addin http://www.adobe.com/2006/flex/mx/internal::addin gChild() at mx.core::Container/http://www.adobe.com/2006/flex/mx/internal::addingC http://www.adobe.com/2006/flex/mx/internal::addingC http://www.adobe.com/2006/flex/mx/internal::addingC http://www.adobe.com/2006/flex/mx/internal::addingC hild() at mx.core::Container/addChildAt() at mx.core::Container/addChild() at MyLoginForm/process() at MyLoginForm/___TitleWindow1_initialize() at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEv entFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent() at mx.core::UIComponent/set processedDescriptors() at mx.core::Container/createComponentsFromDescriptors() at mx.containers::Panel/createComponentsFromDescriptors() at mx.core::Container/mx.core:Container::createChildren() at mx.containers::Panel/mx.containers:Panel::createChildren() at mx.core::UIComponent/initialize() at mx.core::Container/initialize() at MyLoginForm/initialize() at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal: http://www.adobe.com/2006/flex/mx/internal: http://www.adobe.com/2006/flex/mx/internal: http://www.adobe.com/2006/flex/mx/internal: :childAdded() at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal: http://www.adobe.com/2006/flex/mx/internal: http://www.adobe.com/2006/flex/mx/internal: http://www.adobe.com/2006/flex/mx/internal: :rawChildren_addChildAt() at mx.managers::SystemManager/addChild() at mx.managers::PopUpManagerImpl/addPopUp() at mx.managers::PopUpManager$/addPopUp() at print/doPrint() at print/__printDG_click()
Re: [flexcoders] Re: addChild from String
search the flash coders list for this, there are a ton of sollutions floating around in there. On 1/18/06, Brendan Meutzner
[EMAIL PROTECTED] wrote:Hey Jens,Thanks for the help.It's now working (sort of)...
If I create an instance of a built-in class (such as Button), themethod below works fine.However, if I try creating a custom Class(eg. MyCustClass which extends from Canvas) like so:import custclasses.MyCustClass
;var newComponent:Object = createInstance(custclasses.MyCustClass);it doesn't work.I get the run-time error message VariableMyCustClass is not defined.However, if I create a dummy instance of the class in my application
like so:import custclasses.MyCustClass;var dummyMyCustClass:MyCustClass = new MyCustClass();and then create another instance using the createInstance method, itdoes work.Ideas?
Thanks,
Brendan--- In flexcoders@yahoogroups.com, Jens Halm [EMAIL PROTECTED] wrote:
Hi All, I'd like to provide a String value which represents the DisplayObject
class I want to create dynamically with addChild.Has anyone accomplished this? You mean like this? public function createInstance (className : String) : Object {
var MyClass : Class = getClassByName(className); return new MyClass(); } Btw.: what I really miss is a method createInstance(args : Array) in the Class class, so I could easily provide an arbitrary number of
constructor arguments not known until runtime, like this: public function createInstance (className:String, args:Array) : Object { var myClass : Class = getClassByName(className);
return
myClass.createInstance(args); } Class.createInstance(args:Array) would be the constructor equivalent of Function.apply(scope:Object, args:Array). If I use Function.apply after I created an instance the constructor would be called twice
which would be quite dirty. Consider this as a feature request...;) Jens
www.oregano-server.org
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