September 2008
Intermediate to advanced
660 pages
20h 32m
English
Content preview from Programming Flex 3Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Setting Styles
Use the <mx:SetStyle> tag
to set styles for components when defining states. You set
styles when you want to change the appearance (such as the color or font)
of a component when its state changes. The <mx:SetStyle> tag has the same attributes
as the <mx:SetProperty> tag. The
target property allows you to reference
the component to which you want to apply the style, the name attribute allows you to specify the style
you want to set, and the value
attribute allows you to set the value of the style.
Example 12-9 uses three buttons to toggle among three states. Each state sets the color styles of checkboxes to highlight groups of transportation types (land, air, and water). For example, when the user clicks the Land button, the car, train, and motorcycle checkbox labels are displayed using a red font.
Example 12-9. Setting styles
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:VBox id="vbox"> <mx:HBox> <mx:Button id="land" label="Land" click="currentState='landState';" /> <mx:Button id="air" label="Air" click="currentState='airState';" /> <mx:Button id="water" label="Water" click="currentState='waterState';" /> </mx:HBox> <mx:CheckBox id="helicopter" label="Helicopter" /> <mx:CheckBox id="motorcycle" label="Motorcycle" /> <mx:CheckBox id="car" label="Car" /> <mx:CheckBox id="airplane" label="Airplane" /> <mx:CheckBox id="train" label="Train" /> <mx:CheckBox id="boat" label="Boat" /> <mx:CheckBox id="submarine" ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.