I have developed chat application targetting Windows, Mac, Android and iPhone. When a user Sign In then all the friends of that user shows in next view. On Andoid, if user presses physical back key on the device the application must go to background instead of going to previous view (Sign In View). This feature is not supported by Flex. So I have written ANE for this solution and posted here.
To Send App To Backgrounf at any time, use the following lines
var ane:SampleASExtension = new SampleASExtension();
the above class in implemented in the attached ANE.http://powerfulpal.com/files/SendAppToBackground.zip
I have dedicated it to my late Father. May ALLAH bless him with His endless blessings and show His mercy on him.