Flex :: Spark List Itemrenderer Focus Defaults The CurrentState

Dec 29, 2010

I am using a spark list control with an itemrenderer. Whenever I set an itemrenderer's currentState, the moment I mouse out of the itemrenderer, it gets reset to its default state. How can I make an itemrenderer keep its currentState unless I explicitly tell it to change?

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Flex :: Get The ItemRenderer Of A Spark List From Its DataProvider Object?

Oct 26, 2010

In Flex I can create an ItemRenderer to represent each item in the Lists DataProvider but how do I access the instance of the ItemRenderer via the DataProviders Object? Something like myList.getItemRenderer(dp.getItemAt(10));

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Flex :: List - Data In Components Spark In A ItemRenderer?

Apr 25, 2011

I need to create a slideshow using data received from another view.I'm calling the slideshow's view like this:

<s:List id = "list" dataProvider = "{actions}"
change = "navigator.pushView (DetailsProduct, list.selectedItem) ">
<s:itemRenderer>

[code].....

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Flex - Setting Focus On A List ItemRenderer With TextArea Inside?

Oct 29, 2010

I've wrote a custom itemrenderer for a List component (Flex 3.5) which is a VBox with a Label and a TextArea wrapped inside. All works fine so far but I want the TextArea in the first itemrenderer to receive focus so that it instantly becomes editable when tabbing onto the List. Is that possible and if how would I achieve this?

I've already added an event listener that selects the item at index 0 but the textArea in it should also be focussed at that moment _list.addEventListener(FocusEvent.FOCUS_IN, onListFocusIn);

private function onListFocusIn(e:FocusEvent):void
{
_list.selectedIndex = 0;
}

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Flex :: Spark List With ItemRenderer Click Function Not Working?

Feb 9, 2011

I am having an issue with my ItemRenderer, which I am using for a spark List. My code is the following:

I have this list:

<s:List
id="productSetList"
dataProvider="{ model.productSets }"

[Code]....

The thing is, if I scroll the list, and click on an item, it does not trace 'arthur' ! Why is this so ? I must trace that all the time that someone clicks in the list!

EDIT: If I remove change="model.selectSet( productSetList )" in the list, it works!! but I cannot remove that, some suggestions ? How can I switch that to another function?

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Flex :: Spark - Skins ArrayCollection As Dataprovider To An ItemRenderer Of A List?

May 4, 2011

Objective:I would like to pass Skins to an itemRenderer (which is a Button) of a List, and be able to skin every button in that List.This is what I have:

List:

<s:List itemRenderer="renderers.ItemRenderer" dataProvider="{collectionWorkspace}" />

ArrayCollection:

<s:ArrayCollection id="collectionWorkspace">
<comp:Layout1 />[code]...

I get an error (fixed for clarification):Error: Skin for Application....Button1 cannot be found.

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Flex :: Call A Function Inside ItemRenderer In A Spark List, From The Main Application?

Sep 1, 2011

I have a main application that contains a list, using a custom itemRenderer to display data.

I would like to be able to call a function, inside the itemRenderer, from the main application.

When running the app, we have a list with three persons, and a button. I want to call the function myItemRendererFunction() inside the itemRenderer, of the selected item in the list, all this, from the main app.

[Code]...

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Flex :: CurrentState Of Itemrenderer Refreshes On DragDrop Event?

Apr 2, 2011

I have a simple drag and drop, and wanted to change the state of the drop target on a match. It works as expected, but then there the state changes back to normal (or the itemrenderer is refreshing). I am guessing there is either an override that i need to do, or in need to flag it to not refresh, but having no luck.

MXML

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"

[Code].....

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Actionscript :: Spark List In Passing Layout & ItemRenderer In Construtctor?

May 3, 2011

I am trying to create a generic List, where I can pass the layout & item renderer as parameters.Since it is not possible to pass parameters to a MXML component's Constructor, I figured I should create my List in Actionscript.

[Code]...

I would prefer to have the List in MXML (because It will be easier using states later), but If I am forced to use pure Actionscript so I can instantiate it and pass in parameters, any help would go a long way.

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Flash :: Set Label Width Inside Itemrenderer For Spark List In A Liquid Layout?

Jun 29, 2011

In a flex project that I have that is designed to scale 100% to the web window, I have a spark list. And I have a simple itemrenderer that takes the data and displays a name, and a message. Just think of it like a simple instant messenger display. The problem is that for my msg_txt label I want to give it a width thats the width of the parent list thats holding it.I tried turning the horizontalScrollPolicy to off, also tried width="this.parent.parent.width}" (as well as this.parent.width) for the spark label inside the item renderer. and in the label i tried some things like left="0" right="0" maxWidth="{this.width}" but nothing really does the trick.How can I make this label have a max width of the list thats holding it, AND make sure it resizes if the size of the browser changes and the list size changes?heres the list:

<s:List id="chat_content" width="100%" height="100%"
alternatingItemColors="[#EEEEEE,#E6E6E6]" contentBackgroundColor="#EEEEEE"
horizontalScrollPolicy="off" itemRenderer="renderers.ActiveChatItemRenderer">

[code].....

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Actionscript 3 :: Spark Images In Spark List With TileLayout Disappear On Scroll And Drag In Flex App

Jul 1, 2011

I have a renderer that looks like this:

[Code]...

Loading thumbnails using this method works perfectly. The issue happens when you scroll the List.

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Flex :: Spark ItemRenderer Not Showing Contents?

Mar 1, 2011

i have a spark list component and a corresponding custom itemrenderer:

list component:

<s:List id="albumImagesList" itemRenderer="the.namespace.for.XYZImageRenderer" useVirtualLayout="false" width="400" height="160">
<s:layout>
<s:TileLayout requestedColumnCount="5"

[Code].....

it's all fine and dandy, the data gets populated correctly and i verified that the data.image_path property arrives safe and sound inside the itemrenderer.

my only problem is: the image is not displaying. i am not sure if it doesn't render at all or if it's just not visible somehow.

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Flex :: Add A Spark Component To A Mx Extended Custom Itemrenderer?

Nov 14, 2010

have been working on an air app for quite some time and in one of my mx:lists i have a custom renderer written in pure AS (no mxml). it extends the listitemrenderer mx componenet. in it i have overrode the createChildren() function to add some children of my own.

now, fort right-to-left text i want in this itemrenderer, i would like to add a spark:TextArea component in this createChildren() function

is there a way to do so?

this is the itemRenderer:
import flash.text.TextField;
import mx.controls.listClasses.ListItemRenderer;

[Code].....

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Flex :: Removing Default Styling From (spark) ItemRenderer?

Sep 19, 2011

I'm trying to make a horizontal list of labels with a space in-between them (for use as part of a ticker tape).Labels outside of a list have a transparent background but as part of either the ItemRenderer or List, they get a white background. My assumption is that this is part of the default styling applied to a Spark ItemRenderer.Question - Is there any way to totally get rid of all default visual stylings applied to an ItemRenderer?

protected var messages:ArrayCollection = new ArrayCollection( new Array("1", "2", "3", "etc") );
<s:List dataProvider="{messages}" itemRenderer="SimpleTextRenderer">
<s:layout >[code].....

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Flex :: MX List ItemRollOver Event Equivalent On A Spark List Control?

May 26, 2011

Flex 3 List control had a itemRollOver event. Flex 4 List doesn't have it. Is there an equivalent or a workaround for this issue?

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Flex :: Fswap Graphic Objects Inside A Spark ItemRenderer

Jan 17, 2011

I'm writing a s:ItemRenderer to render some simple graphical components in my app. Each element can have multiple shapes that can be selected by the user, i.e. a certain element can be a square, or a circle, or a star, or whatever else.The simplest way I could think for doing this was to include all possible shapes in a s:Group and then manage their visible tag depending on what shape the user has selected. Is there a better way to do that? Also, if I encapsulate the group in a separate MXML component, how do I propagate the state of the itemRenderer (say "hovered") down to the MXML component that manages the shapes?Let's say you want to display three types of objects alternatively - the IR below with an AS snippet that turns visible to false for 2 out of the 3 objects definitely does the trick, but seems so ugly to me. In the mean time I found setCurrentState (stateName: String, playTransition:Boolean=true) to propagate the state down, so that's solved.[code]

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Flex :: Spark List Have Something Similar To ItemsChangeEffect In Mx List?

Jun 28, 2010

I'm trying to animate a list as I delete the top row. All the examples I can find use itemsChangeEffect to bind to the effect, but this property exists only in MX lists, not spark lists.

Any idea how I can get the same effect done in Spark Lists?

I'm trying to remove the top most item in the list with a slight fade out effect before the rest of the items move up to replace the gap.

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Flex :: Hero Spark Component - Changing View From Within Custom Itemrenderer?

Mar 22, 2011

I've made a custom list itemRenderer with 2 buttons and a label. One button deletes the list entry (and thats not the problem) the second button would change the actual view.how I can change actual view within the itemrenderer ?

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Flex :: Spark ItemRenderer Labels Disappear When Large Redraws Occur?

Apr 14, 2011

I have an application with a Google Map, an Area Chart, and an accordion containing a list.When the selection in the list is changed, the application fetches data from the server and updates the chart and map, repositioning the map to contain all markers within its viewport and kicking off a SeriesEffect to animate the chart data redraw.When a user changes selections and continues to mouse over the items in the list while the map and chart are redrawing, the labels on the item renderers disappear.The item renderer code is the following:

<s:ItemRenderer xmlns:fx = "http://ns.adobe.com/mxml/2009"
xmlns:s = "library://ns.adobe.com/flex/spark"
xmlns:mx = "library://ns.adobe.com/flex/mx"

[code]....

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Flex :: Draw Multiple Graphical Objects In A Spark ItemRenderer Using MXML?

Apr 26, 2011

I would like my spark ItemRenderer to be able to render a varying number of graphical objects that depends on the user input. As an example, let's say that I want to render a set of ellipses on a line.I've been using MXML for my most recent batch of ItemRenderers and have loved every minute of it, but I'm not sure how to accomplish the above goal with an MXML IR. In Actionscript I can acquire the list of ellipses locations and draw them programmatically in the updateDisplayList method. Is there an equivalent in MXML?

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Actionscript 3 :: Limit Flex Spark DataGrid ItemRenderer Data To Column

Feb 27, 2012

I've got a DataGrid in my mobile application (I know, I know but there's currently not other solution for this), that numeric values. Depending on the value of a cell, the text gets colored. My big issue is that this doesn't work very for more than about 5 rows of data. I reckon the issue is that the set text function (in which I format the color) can't keep up with the amount of cell changes and formats the text based on the last updated cell of the row.I thought about a column item renderer so that the renderer only gets the value for that column, and not the whole data of the row.

Just for reference, this is my current item renderer (again, this works fine for few rows, for 5+ of fast changing data, this doesn't work any more, cells get formatted even though their data hasn't changed).[code]I just double-checked and have to revert my previous statement. A single row works fine, the second row already messes up the color formatting though. It seems as if the datagrid somehow throws together the values.
Doing the color formatting in the set data method shows the exact same effect;[code]My assumption about the grid messing up the ItemRenderer's data seems to be correct.A simple trace in the set data method (trace("old: " + _oldVal + "new : " + value[column.dataField]);) revealed that somehow, values of the next grid row (in case there are 2) get used as well as _oldVal gets the old value of the next row.

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ActionScript 3.0 :: Spark Scroller, Switch Focus To Spark View But It Still Scrolls

Jan 26, 2012

I am working on a drag and drop feature for the sparkScroller. This is sort of how my layout looks:
 
<mx:Canvas>
<s:Scroller id="items" .. />
<mx:Box id="dummyRow" visible="false" />
<s:View id="touchView" visible="false" />
</mx:Canvas>
 
So when you hold your finger over a row in the items Scroller for more than a 30 seconds, the touchView becomes visible so does the dummyRow. The dummyRow gets populated to look like the row which you held your finger over.
 
So the touchView has the event handlers for moving your fingers and places the dummyRow where your finger is. The problem I am having is even though the touchView is reacting to my move events, the scroller still keeps reacting to my move events as well even though it's a sub layer. Because I started on the scroller it still keeps track!
 
How can I remove focus / tracking from the scroller?

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Flex :: Spark Skins : Blue Drop Shadow On Focus?

May 26, 2010

I'm currently experimenting flex 4 skinning. I successfully skinned most of the components i need for my application, but i can't find a way to avoid this damn blue drop shadow which is displayed when u'r focused on a textfield or a combobox.

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Flex :: Keep Focus On Spark TextInput After Setting StageWebView Source?

Jan 15, 2012

I have a mobile application that has a Text Input used for searching. Below the search TextInput is a StageWebView. When I set the source of the StageWebView using loadURL() the key input is shifted to the StageWebView. How can I prevent this?

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Flex :: Acess ItemRenderer In List?

Jun 15, 2010

How to access List itemRenderer and its properties (Spark - Flex 4)?I want to iterate through list and do something like (note it's pseudo code):

for (var i=0;i<NUMBER_OF_ITEMS_IN_LIST; i++){
myList.getItemRenderer[i].property
}

[code].....

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Flex - Use A Different ItemRenderer For Different List Items?

Aug 3, 2010

I have a Flex list and a custom ItemRenderer. I'd like to be able to have some items in the list use a different ItemRenderer (say, depending on the class of the item). Is this possible?

E.g.: <s:List dataProvider="{_systems}" itemRenderer="myItemRenderer"/>

Most items in _systems use myItemRenderer. But if element 3 of _systems is "specialSystem" the renderer would be "specialItemRenderer".

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Flex 4 List ItemRenderer - Different Itemrenderers For Different Rows?

Jun 28, 2010

I'm creating a list of scores for a game. now most of the list i need to have the same ItemRenderer. but in one specific row of the list where the user who's playing is listed, it should show different information and with different background color. how can i achieve this ?

I already tried to resolve the issue with states, i created 2 states, one state called 'mine' and the 2nd state called 'others'.

the problems that i got is that when users click on one of the list rows that state changes to i donno clicked or something and that's why i assumed that states are not the right action for me.

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Flex :: Reflect Changes In The List.selectedItem In The ItemRenderer?

Oct 22, 2010

When I change the: list.selectedItem.name = 'name2'

then in my item renderer

the dataChange event is not fired! and I can't update the label with the name property...

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Flex :: Change ContentBackgroundColor Of List With ItemRenderer?

Feb 11, 2011

I'm attempting to change the contentBackgroundColor of a List component depending on the content found within the dataprovider.[code]...

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Flex :: Get Changed Value Of Item From ItemRenderer In List?

Jun 22, 2011

I have a List with textInput as itemrenderer. Initially the list is loaded with data from a data provider. However since the items are rendered in textInputs, I have the ability to change the value of a particular item.

But when trying to access the value of the changed item using the function below, I still get the old value in my trace:

private function addItem(event:Event):void {
trace(myDataProvider.getItemAt(myList.selectedIndex).label);
}

what I need to do for the new value to be available. My itemrenderer is shown below:

<?xml version="1.0" encoding="utf-8"?>
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"

[Code].....

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