when I try to loop through the children of a List component that has buttons in it, I can't seem to access those children. I try
for(var btnNum:Number = 0; btnNum < myList.numChildren; btnNum++)
{
trace(myList.getChildAt(btnNum);[code]......
enter code hereI am loading an external swf into an component. It loads everything fine and I can see buttons working in the swf, I can add a movieclip to the but I can't then access that movieclip (or don't know how), and it keeps telling me numChildren = null when I try to trace it out. This is set up as a custom component like this:
<cynergy:imageZoom
id="zoomComponent"
borderStyle="solid"
source="{_data.map.@url}"
[code]....
how I would access the children in the loaded movieclip?I have tried
mycomponent.image.getChildAt(2) and it returns and error that the index is out of bounds.
unable to figure out how you can access a List Component Skins using ActionScript. What I'm trying to do is access the CellRenderedSelectedUp skin and:
1. Change it's color using ActionScript
2. Make it change its' color when that list item is clicked
So, let's say that the first item in the List is clicked. I want ActionScript to override the default coloring of the Selected Up skin (say change the color to yellow) and stay that color(yellow) until another list item is clicked on.
I'm building a top view 2D map, that it's objects are stored on the server.The kind of objects are 10 and might be a photo, label, button, lists, mix of them or labels with tooltips.The component must request the "areas" that are missing on screen.An area is 1000x1000 px and is cached in flex.To move in the map, will be like in google maps (drag-and-drop).I should be able to have another list and move objects from one to another using drag-an-drop on objects. Ex.: I grab an objects from a list and I move it on this map, I release the mouse button and the item is placed there.Now the problem is: I build a custom component for this trying to emulate the item renderer for performance and recyclage, implement drag-and-drop on objects and request the areas that are missing?
or
I extend the List component from spark and I add some features as multiple kind of itemrenderers and use recycle on them. Of course it must be able to request the missing areas on the screen and cache it's data.Maybe create a custom layout is needed too.What I need is something that must be really fluid, so the lighter this component is, the better.
UPDATE: *There will be not any object over another.
*I will not use hitTest on bitmaps because all bitmaps are wrapped in another component,as they,for now are itemrenderers.
Anyway I already begin to do this using a class that extends the SkinnableDataContainer and a custom layout. As the layout is not like a grid, is sparse, random items at diferent points(x, y).How to get the localX and localY, relative to item renderer and not to the Spark List, from a DragEvent in Flex 4?
I'm resizing a chart and want to take a picture of it when all the children of that chart are done updating.
For example I'm drawing some stuff on the chart after the size changes. I've tried chaining a bunch of callLater() but I'm still running into problems on slow computers.
Raising an event when the last children has executed doesn't seem to work as it might take a while to draw (hence the callLaters).
Is there a best practice to find out when something is done updating?
how to populate a list box component located within a seperate mc in my swf with an array... the array comes from a response from a webservice call. I am not currently on the computer with my source code available so lets just use the following....
listdata[i] = the array i want to populate the list box with..... (listdata1, listdata2, listdata3, listdata4, etc. etc.)
movieclip1 = the MC within my fla containing the list box component
mylist = the actual list component
... just not all that familiar with the format of actionscript when working with objects... using CS3 and as2 btw,
If i want check parent node checkbox means below childerns checkbox will select automatic .[code]...
View 2 Repliesfor some reason STORAGE[0].getChildAt(0) works whereas liner.getChildAt(0).getChildAt(0) does not. STORAGE is a movieclip and a child of liner. the error is something about not being able to use getChildAt on a display object. what's wrong? is there any other approach i could use? PS: liner.getChildAt(0) works and does indeed seem to refer to STORAGE[0]
View 2 RepliesI'm having a problem with getting the value of an item that the user selects in my mobile Flex application. When I select an item from the list I place that item into an ArrayCollection. But when I check the value (trace()), the value is [object Object] and I can't seem to access the actual value of the object. Here is what I am doing:
private var selectedPlayers:ArrayCollection = new ArrayCollection();
private var numOfPlayers:int;
...
//check if item is not already in selected players list
[code]....
I am trying to develop a custom component to act as a divider.
[Code]....
I would like to use this component to assign objects like this:
[Code]...
Unfortunately, this does not work. I get a compiler error saying: In initializer for 'left': multiple initializer values for target type mx.containers.Canvas.
I have a tree with a dataprovider which takes the following form:
<details name="Cars">
<contact_person>aaaa</contact_person>
<list>
[Code].....
That is I want to hide the contact_person and list nodes.Deleting the nodes from the dataprovider cannot be done.So what i did was to create a custom tree data descriptor by extending DefaultDataDescriptor.Then override the getChildren method and applied a filterfunction to the collection returned by super.getChildren.The problem is when i hide the 'list' node I cannot have the child nodes to show up.So is there any way I can hide 'list' but show the children of 'node'?
I'm trying to make a Flex Tree Component display the children of a sprite in a hierarchical way. Moreover, dragging the items on the FlexTree would resort and reparent the items. I have special Elements set as Folders. This would allow other elements to be added there as a children by dragging an element on the tree and dropping it there. I have a failed attempt which works, but breaks when I try to add folders. Basically, it fails at reparenting the items by dragging and resorting folders and that Does anyone know of a component or something which can do this, has anyone have created any of this or could anyone give me a clue?
View 1 RepliesCode:
import mx.core.mx_internal;
use namespace mx_internal;
[code].....
How can I validate if atleast one item has been selected from a list, such that the selectedIndices is set to NULL at the init() of application?
View 1 RepliesIn flex UI, my <mx:list> can not be shown completely because of other component shelterring (for example: the refresh button shelter part of it ). How can I make the <mx:list> in front of all other UI component.
This is my code:
<s:HGroup verticalAlign="middle">
<s:Label text="Choose Log File"/>
<mx:ComboBox id ="logFileChooseCombo" dataProvider="{fileNameList}" width="150" color="0x000000"
[Code]....
How can I extend a spark list to add a UI component on it?
View 1 RepliesI have a list component in my app which shows some tiles and one can navigate through them horizontally and i was wondering how can i add the swipe functionality in it to the left or to the right,is this supported by default when the app is on a touch device? the list is like:
<s:List id="list2" width="100%" height="100%" dataProvider="{ recordingsShown }"
preinitialize="list2_preinitializeHandler(event)"
selectedIndex="0" visible="false">[code]............
In Flex Builder 3, I am trying to access the main applications view state from within a component.On initialize I show the Loginpage-component. When I click the login button I want to hide the loginpage and show my "controlpanel" page, which also is a component.I try with this, and also placing this function in the main application.[code]
View 1 RepliesI have a List of items which is based on the contents of the "category" that a user selects
When the user changes selection, I change the dataProvider of the list be be the contents of the current category.
Sometimes the list contains items, sometimes it does not
Is there a way of hiding the list when it has no items?
I know that I could do this when setting the dataProvider, but it seems like there should be an event or something else that I could be using.
How to skin spark List component so that every adjacent itemRenderer has different color (something like mx DataGrid)?
View 1 RepliesI'm trying to extend the mx:Box container so that two buttons sit on the outside of the container to cycle through it's contents (similar to a scrollbar).
I've made a custom component that looks basically
like "mx:HBox->mx:Button mx:Box mx:Button" where the buttons and box are children of the hbox.
How do I offer the user access to the box (say its dataProvider and itemRenderer) through my custom component?
So they just need to write 'local:MyCustomComponent dataProvider="rar" itemRenderer="rar"/>' and my box inside that component can use it?
I will implement this myself if I can't find it but after 30 minutes of searching on the web I'm a bit surprised this doesn't exist. Basically what I need is a hierarchical list component like the finder app on mac. I want the same functionality as a tree component but displayed as each level having it's own list resulting in multiple lists that depend on each other.
View 1 RepliesI need to be able to call a method from a component located under the main application in Flex 4. Can anyone tell me please how to do this without using FlexGlobals please?[code]
View 3 RepliesI need a List that resizes to exactly fit its content, unless that height exceeds its (dynamically sized) parent container. My requirements are as follows:
The component extends List, or at least acts similarly. variableRowHeight and wordWrap both equal to true. The height of the list cannot be less than minHeight (roughly 32px for scrollbar arrows). The height of the list cannot be greater than the height of the parent container .
Note that the parent container can be resized dynamically.
The height of the list should be updated as the size of both the contents and parent container changes.
Live updating would be preferable but not necessary.
There should be no scrollbars if the content height is less than the parent container height (sounds obvious, but I've had trouble with this too).
The trouble is that with variableRowHeight and wordWrap, it's very hard to know the size of the content at any given time. If the parent container's width is reduced, a line wrap may occur in the list which will change the height of the content. I know I can measure the height of the list content using measureHeightOfItems() + viewMetrics.top + viewMetrics.bottom, but when should I calculate that? What events should I listen for? And the thing I've had the most trouble with - when should I calculate it to set the size initially (i.e. just as the content has finished populating)?
Is there a way display the display list in the Tree component. I could parse the display list into xml but then I would not be able to create a reference to the display object.
View 1 Replieswondering if there's any way to make it so that a list I have will not scroll to show the horizontal end of the items. Very few items go long enough to require it and the horizontal scrollbar is distracting.
I don't see any property to control that, though, so not sure how to achieve this.
I've created a component which is basically a meter (extends skinnable container). The skin to the component contains two rectangles (background and the actual meter). This component receives an arraycollection with the following fields value, max and min(the arraycollection I am passing is Bindable). When I initialize and pass the data to be used to draw It works great (keep in mind - only works the first time). I've created a button that changes the data array and shows the current meter value. Apparently the meter's value is changing everytime I modify the ArrayCollection I've set to be used for rendering.(dont want to say "dataProvider" because it is not a Flex dataprovider, just a variable )... here is the code...
public class meter extends SkinnableContainer {
[SkinPart( required = "true" )]
public var meter:spark.primitives.Rect;
[Code]....
I have a regular spark list which is sorted correctly when no item renderer is used. However, when the following item renderer is used, the list shuffles and displays items from previous instances of the list.[code]
View 2 RepliesI have an arrayCollection of objects that extend Sprite, and have bitmaps within them. I want to display these in a list (or some other component that would allow a user to scroll through them, and see their associated data.)
When I do: myList.dataProvider = myArrayCollection
the list just shows a bunch of lines of [Object, Item] instead of the visual sprites.
Here is a simplified version of my Object:
public class myUIC extends UIComponent
[Code]...
Tried many different ways to get it to show up in a List, but can't do it.
I have the list shown below:
<s:List id="list2" width="100%" height="100%" dataProvider="{ recordingsShown }"
itemRenderer="components.VideoItemRenderer2"
selectedIndex="0" visible="false">
[Code].....