Flex :: Size - Find The Width Of Text In A Spark Label?
Oct 11, 2011
Suppose I have a (Spark) label. What is the best way to find the length of the text in it? I looked at the myLable.measureText("bla bla") method but it says: To measure text in Spark components, get the measurements of a spark.components.Label or spark.components.RichTextfter looking around I cannot find what this is refering to. I tried myLabel.measureWidth() but this does not return anything usefull (it frequently returns zero). Note: I am explicitly setting the width like this:<s:Lable width="{globalWidthVariable"} .../>If the text overflows I would like to increse the globalWidthVariable to the size of the text.
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Aug 5, 2011
I need to set the text of a spark label and then position such label along the x axis depending on its width. Unfortunately, it seems that the width of the label does not update right away and thus the positioning will fail. I can listen to updateComplete events on the label and update its position then, but that means repositioning the label a lot more often than I would like (updateComplete fires off a lot more often than upon changing width). how to properly handle what would appear to be a trivial task?
Here's a code snippet that shows what I described above. If you press the button you will see 3 traces: the label width before changing its text, right after setting its text, and when the label is done updating itself. Would love to know if there's a way to get the correct width without having to listen to updateComplete events... The button and the VGroups are just there to run the example
<?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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Dec 28, 2011
I am using spark.label for Mobiles in Flex, I want gradient on label text instead of solid color. But performance should be kept in mind as it will run on mobile device.
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Jan 31, 2012
How do you determine the line height (in pixels) of the text in a Spark Label?
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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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Dec 21, 2010
As textWidth property is no more accessible in spark textinput how we can get that property ?
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Dec 21, 2010
I have a button with variable-length of label text. I have a User Setting that can turn on or off the label text on this button.
How can I implement this?
NOTE: the button's background has a gradient color.
I tried using BlendMode.LAYER, no luck;
I tried using Button.resizeHandler
private function resizeHandler(event:ResizeEvent):void
{
if (event.oldWidth > this.width)
[Code]....
but it only worked if the initial UserSetting value is true.
How about embedded font? I don't know how to apply it to button
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Dec 24, 2009
I can change the color of the label in Flex Builder, I can even BIND the color to a variable and that works, but I can't find the Color PROPERTY in order to change or reference it programatically! What is the ActionScript 3.0 code to change the font or color of a piece of text in a Flex RIA - or is caring in what color your text appears too bizzarre a request for a RIA? I wrote whole applications after just minutes of "learning" flex, how come it's taken me three days and I still can't change the color of my stupid label?
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Aug 31, 2011
Is there a function or property or better way to do what the following code do?
var width:int = 20
while (textField.defaultTextFormat.size > 1 && textField.width > width) {
textField.defaultTextFormat.size--
}
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Aug 22, 2010
I would like to add some fancy drawing beyond the CSS formatting. How can I put a skin on a spark Label ?
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Aug 10, 2010
I am trying to change my radiobutton size and label size in pure as3...
searchRB = new RadioButton();
searchRB.name = "search";
searchRB.group = rbg;
[Code]....
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Jul 1, 2011
[Code]....
The follow code seems not to working ( Flex 4.5 ). What could cause this issue, and how to fix it ?
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Feb 17, 2012
How can I set a line-through style for a s:label like css text-decoration:line-through.
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Mar 9, 2012
I have a group of spark label components within a VGroup. Is there a way to change the background color to the labels when the user rolls over them? I've tried adding rollOverColor to the VGroup, but it didn't work.
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Oct 12, 2009
Once I've set either the width or percentWidth property on a flex label, is there a way to reset the width to its default (i.e., the width of the text plus padding)? I'm using the label as a renderer. In some cases, I'd like it to automatically size to the text, and in other cases, I'd like it to be a percentage width of its container. Obviously, I could use two separate labels, one for each of the above cases, but I'm curious if it's possible to reset the label to its default behavior.
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Mar 11, 2011
I'm creating the Label component like this
var label:Label = new Label();
label.text = "some text";
label.styleName = "someStyle";
addChild(label);
But it stay invisible until I explicit set the width and height.How can I make the label to be auto resized according to it's text?
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Sep 12, 2010
I've got a spark buttonbar w/ a dataprovider as follows:[code]By default, the button's labels will be "Dave" and "Brenda", respectively. How can I dynamically change the label to the "addr" field when a user rolls over the button?
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Dec 9, 2011
I am trying to determine the height of a Spark label that becomes multiline at runtime (due to width property being set), to account for text overflow.
(For a spark label named Title) I have tried:
Title.measureText(Title.text).height - this seems to return only the height of one line. (Due to differing screen-sizes and font rendering, I don't know in advance how many lines the text would overflow to...)
Title.height - this seems to return the height of the label size (before being re-adjusted at runtime for multiline text flow)
Both properties above return an unchanging value even when different text lengths/multiple lines long are filled in .text
Is there really no way to determine the exact height of an overflow Spark label?
I am admittedly not that familiar with the Flex API but after scouring the manual for quite some time, I am still unable to place this title label with the proper spacing.
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Jan 31, 2012
Among all the options of the spark label, there is none that tells me the last character shown when the text is truncated, is there any way to accomplish this?
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Sep 11, 2010
How do I set the individual button sizes in a Spark ButtonBar? It used to be something like[code]...
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Nov 3, 2010
I am treating a spark TextArea as text input(by setting heightInLines="1"). The TextArea is part of an mxml component and I want to resize the component when the text is changed.
I haven't been able to use textArea.measureaText(textArea.text) to get line metrics and use it. I get this error "Parameter antiAliasType must be non-null."
Is there any way to get the width of a TextArea which it is going to consume at runtime for a particular string or a particular TextFlow?
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Nov 29, 2010
in flash builder 4 how do i use the skinning option to make sure the popup dropdown list changes it's width to fit the longest item in the list?(the prompt area - the component when it is closed - should not change it's width)
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Apr 28, 2011
I have been given the seemingly simply task of resizing a Group container by setting width and height explicitly in response to user interaction. However, changing these values have no effect on the size of the container at all. Changing scaleX and/or scaleY will change the size of the container just fine, but this is not the behavior I am after.I have tried overriding updateDisplayList() to set a specific width and height, but this has not yielded the desired results.
<?xml version="1.0" encoding="utf-8"?>
<s:Group xmlns:fx="ns.adobe.com/mxml/2009" ;
xmlns:s="library://ns.adobe.com/flex/spark"
[code]......
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Sep 3, 2003
how do i find out the width of a text box and set a variable with that value?
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Aug 18, 2009
Is there a way to get the measured-width of a button label in flex based on its style properties at runtime?
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Aug 3, 2010
In a spark list I could use the change event to find out which item has been selected or deselected. The dispatched IndexChangeEvent object has the properties newIndex and oldIndex holding this information.
But with multiple selection allowed this doesn't work anymore because newIndex and oldIndex could refer to indices of still selected elements.
A solution would be to copy the selectedIndices vector to another variable and compare this variable with selectedIndices after a change in selection, but this seems to be somewhat complex.
Does anyone know if there is an easy way two get the index/item a user is deselecting while other elements are still selected?
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Feb 13, 2012
In general, I haven't yet found a definitive way to get Flex and Spark containers to size themselves relative to their children. I have searched for good documentation for this concept many times but have yet to find anything that sufficiently explains the concepts. A simple example of something I often want to do is to draw a border uniformly around a set of controls. The goal here would be to have all UI elements to size themselves automatically.
<s:BorderContainer>
<s:HGroup>
<s:Label text="l1" />
<s:Label text="very long label 2" />
</s:HGroup>
</s:BorderContainer>
I would want the Labels to size themselves based on the text property, and the HGroup should be as big as needed to contain labels and BorderContainer should only just contain that HGroup. Now the more complicated example that I am working on now. I have a class that extends the BorderContainer. Within the class I create an HGroup with 5 Labels as children of the HGroup. Then the HGroup is added as a child of the ExtendedBorderContainer (using addElement() method).
Then the new class is used in the application as:
<mx:ViewStack>
<s:NavigatorContent>
<my:ExtendedBorderContainer />
</s:NavigatorContent>
<!-- more NavigatorContents here -->
</mx:ViewStack>
I have tried various [max|min]height/width combinations and I can not get the desired layout, which is very tight borders around elements without extraneous space starting from the deepest Label children all the way up to the NavigatorContent.
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Jun 24, 2005
I have a movieclip which is scaled depending on xml data. However, I have a problem in that this results in a text label within it also being shrunk or stretched. Is there any way to make sure that the text label stays the same size?
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May 11, 2011
I know this question has been asked before but the other solutions didn't work for me quite well. here's my sample application.
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[code].....
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Feb 23, 2012
I would like to display a set of Text like this "DISCONTINUED (02-02-2012) Crocin" in label. But i need smaller font size for Date. How can I set the value to Label so that I can display smaller size font for Date.
I only need to assign a single string to label? like this "DISCONTINUED (02-02-2012) Crocin"
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