UDP in AIR for iOS using a native extension

var udpSocket:UDPSocket = new UDPSocket();
var bytes:ByteArray = new ByteArray();
bytes.writeUTFBytes("Hello World");
udpSocket.send(bytes, "192.168.9.1", 1234);

var udpSocket:UDPSocket = new UDPSocket();
udpSocket.addEventListener(DatagramSocketDataEvent.DATA, udpDataHandler);
udpSocket.bind(1234);
udpSocket.receive();
 
protected function udpDataHandler(event:DatagramSocketDataEvent):void
{
	trace(event.data);
}

var bytes:ByteArray = new ByteArray();
var o:Object = {};
o.command = "MESSAGE";
o.content = "Hello World!";
bytes.writeObject(o);
udpSocket.send(bytes, "192.168.9.1", 1234);

11 Responses to “UDP in AIR for iOS using a native extension”

---

• ActionScripter

  December 12, 2011 at 11:06 am

  Thanks for sharing, look forward to your FITC 2012 session!
• Pulkit Gupta

  December 27, 2011 at 3:52 pm

  Can’t the same thing be done using RTMFP protocol, which works on AIR mobile projects as well?

  I mean, did you not use RTMFP simply because it needs a CIRRUS server?
• John

  January 30, 2012 at 7:59 pm

  I am having some trouble. I have added the ANE to the build path and see it referenced under the Native Extension tab under the iOS packaging (though I had to manually select the “Package” checkbox). I also have the extension.xml associated with the project and I can see the nativelibrary *.a file referenced in the xml. However, I am not sure what I should so with the native library itself *.a file? Is there something I need to do to import or reference the file?

  When I try to package the app for the iphone to I get an error saying that the implementation for the native extension was not found for the target platform. This is with the “Package” check box unselected under the Native Extensions tab.

  If I select the check box and then package for the iPhone, I get an exception “Error within Debug UI” and details of “java.lang.reflect.Inovation.TargetException”.

  Any ideas on what I am doing wrong?
• wouter

  January 30, 2012 at 8:26 pm

  John,

  All you need is the ane file. Make sure you do the following:

  - Add the ane file to your actionscript build path, both in the library path and the native extensions tab.
  - Check the checkbox in the actionscript build packaging, to add the ane to the package
  - Make sure everything is correct in your -app.xml. The extension id should be in there (normally this is added automatically), aswell as the extendedMobileDevice option in the supportedProfiles list:

  <supportedProfiles>mobileDevice extendedMobileDevice</supportedProfiles>
  <extensions>
  <extensionID>be.aboutme.nativeExtensions.udp.UDPSocket</extensionID>
  </extensions>
• John

  January 30, 2012 at 9:24 pm

  Thanks! I am still having an issue though – when I launch I get the java.lang.* exception. To clarify:

  I added the ane to the native extension tab under build path (the one under udpsocket_0.2/ane)

  I am not sure how to add the ane to the Library Path though…should I add the UDPSocket.swc there?

  I selected the “package” option under the Apple iOS Native Extensions tab – though there is still an “x” under the “used” column.
• Olivier

  January 31, 2012 at 5:37 pm

  Thanks a lot !
• rotanadan

  February 14, 2012 at 9:06 pm

  at be.aboutme.nativeExtensions.udp::UDPSocket()[E:00_WORK\cashRegisters\flashTest\be\aboutme\nativeExtensions\udp\UDPSocket.as:56]
  at asa::main()[E:00_WORK\cashRegisters\flashTest\asa\main.as:73]

  Not sure why I cant get this to work but when I go to publish my SWF before putting it into adt I am getting this error.

  line 73 in main.as is udpSocket = new UDPSocket ;
• rotanadan

  February 14, 2012 at 9:18 pm

  added the line to xml, now i dont get the error, but the swf wont preview in flash pro and when i package it in adt and test on the iPad it just goes black, ugh. I’ll keep messing with it
• Vladimir Mitrovic

  March 20, 2012 at 5:30 pm

  Hey I keep getting this error:

  Error occurred while packaging the application:

  An implementation for native extension ‘be.aboutme.nativeExtensions.udp.UDPSocket’ required by the application was not found for the target platform.

  any ideas?
• Max

  March 28, 2012 at 10:22 am

  Hi could u add Broadcast ability to the iOS Version of the Extension?
  I think theres only following line missing:

  [ssocket enableBroadcast:YES error:&e];

  I tried to compile it but i cant get my ane files for iOS to work ^^
• Keith

  April 13, 2012 at 9:31 am

  This is excelent! Would you consider enhancing it to include TCP sockets too?

• UDP Native Extension for AIR Mobile – now with Android Support! « Aboutme – blog
  Pingback on Dec 14th, 2011 at 9:57 pm