Sollte es zu Problemen kommen, die bei der Installation der eigenen iOS-Applikation in iTunes auftreten z.B. Singnaturprobleme, so kann ich die folgenden Video-Anleitungen empfehlen:

http://www.youtube.com/watch?v=mpzSXAW0qUI

http://www.youtube.com/watch?v=4GteMgFvA1Y&NR=1

Die verwendeten Shell-Aufrufe in den zuvor genannten Videos in chronologischer Reihenfolge:

openssl genrsa -out mykey.key 2048

openssl req -new -key mykey.key -out CertificateSigningRequest.certSigningRequest -subj “/emailAddress=yourAddress@example.com, CN=John Doe, C=US”

openssl x509 -in distribution_identity.cer -inform DER -out distribution_identity.pem -outform PEM

openssl pkcs12 -export -inkey mykey.key -in distribution_identity.pem -out iphone_dist.p12

Adobe Flex Builder updated to version 4.5.1. Now it is possible to develop next Android also iOS applications.

The new features available in the Flex 4.5 SDK release are:

• Multiscreen development
• New Spark components
• Spark DataGrid
• Spark Form
• Spark Image
• Spark Formatters
• OSMF 1.0
• much more…

Read hit here: http://www.adobe.com/devnet/flex/articles/introducing-flex45sdk.html

Example:

@font-face{
	fontFamily: "arial@mx";
	fontWeight: normal;
	fontStyle: normal;
	src: url("./assets/fonts/arial.ttf");
	advancedAntiAliasing: true;
	embedAsCFF: false; /* flex ->flash builder migration hint */
	unicodeRange:U+0020-U+00FC,U+00A0-U+00FF,U+2000-U+206F,U+20A0-U+20CF,U+2100-U+2183,U+20AC-U+20AC;
	/* latin1 incl. Euro Symbol */
}

Try this helpful and undestanding Post:

http://blogagic.com/18/flex-component-life-cycle

public static function roundDigits( value:Number, precision:int=0 ):Number
{
	var precFact:Number = (precision == 0) ? 1 : Math.pow( 10, precision );
	return Math.round( value * precFact ) / precFact;
} 

Example:
roundDigits(5.3443233, 3); // 5.344
roundDigits(0.6789, 1); // 0.6

Today I found a solution to put Spark Components such as <s:HGroup> inside of an <mx:ViewStack> container by using <s:NavigatorContent>:

<?xml version="1.0" encoding="utf-8"?>
<s:VGroup xmlns:fx="http://ns.adobe.com/mxml/2009"
		 xmlns:s="library://ns.adobe.com/flex/spark"
		 xmlns:mx="library://ns.adobe.com/flex/mx"
		 width="100%"
		 height="100%">

	<fx:Declarations>

	</fx:Declarations>
	<fx:Script>
		<![CDATA[

		]]>
	</fx:Script>
	<mx:ViewStack width="100%" height="100%">
		<s:NavigatorContent width="100%" height="100%">
			<s:HGroup id="startAndLoad"
					  width="100%"
					  height="100%"
					  verticalAlign="middle"
					  horizontalAlign="center">

				<s:Button label="label 1"/>
				<s:Button label="label 2" />

			</s:HGroup>
		</s:NavigatorContent>
	</mx:ViewStack>

</s:VGroup>

Read this article:

http://roseindia.net/tutorial/flex/flex4/components/viewstackcontainer.html