Scroll ticker symbols across the screen and lets users adjust the speed with an HSlider control

    

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    <!-- layoutperformance/CallLaterTicker.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark">
    <fx:Script> 
        [Bindable] 
        public var text:String = "SLAR:95.5....TIBA:42....RTF:34.15....AST:23.42"; 
        [Bindable] 
        public var speed:Number = 5; 
        public function initTicker():void { 
            theText.move( this.width+10, 0 ); // Start the text on the right side. 
            callLater(moveText); 
        } 
        public function moveText():void { 
            var xpos:Number = theText.x; 
            if( xpos-speed+theText.width < 0 ) { 
                xpos = this.width+10; // Start the text on the right side. 
            } 
            xpos -= speed; 
            theText.move(xpos,0); 
            callLater(moveText); 
        } 
        public function changeSpeed():void { 
            speed = speedSelector.value; 
        } 
      </fx:Script>
    <s:Panel title="Ticker Sample" width="400" height="200">
        <s:VGroup>
            <mx:Canvas creationComplete="initTicker()"
                horizontalScrollPolicy="off" backgroundColor="red" color="white"
                width="400">
                <mx:Label id="theText" text="{text}" y="0" />
            </mx:Canvas>
            <mx:HBox>
                <mx:Label text="Speed:" />
                <mx:HSlider minimum="1" maximum="10" value="{speed}"
                    id="speedSelector" snapInterval="1" tickInterval="1" change="changeSpeed()" />
            </mx:HBox>
        </s:VGroup>
    </s:Panel>
</s:Application>

1.	Put Button into a Canvas
2.	Use Canvas to wrap Buttons
3.	Set vertical center and horizontal center for Button inside a Canvas
4.	uses constraint rows and constraint columns to position three Button controls in a Canvas container:
5.	Use Canvas to hold controls
6.	A Canvas container with two vertical regions and two horizontal regions
7.	A single constraint column that occupies 20% of the Canvas area
8.	Canvas background color white
9.	Creating a Canvas container by using constraint-based layout
10.	Use a semitransparent Canvas container to highlight the data point
11.	Canvas container
12.	Canvas Reposition
13.	Change Canvas cornerRadius and borderStyle
14.	Canvas border style solid
15.	Add style name to Canvas

Scroll ticker symbols across the screen and lets users adjust the speed with an HSlider control : Canvas « Components « Flex

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