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Sending a file between AIR applications using local connection

开发者 https://www.devze.com 2023-02-08 05:15 出处:网络
How do i send a text file between air applications using local connection? Sender AIR private var conn:LocalConnection;

How do i send a text file between air applications using local connection?

Sender AIR

private var conn:LocalConnection;

            public function init():void
            {
                conn=new LocalConnection();
                conn.addEventListener(StatusEvent.STATUS,onStatus);             
            }

            private function Sender():void {

                var alphabets:File= File.createTempFile();
                var file:FileStream = new FileStream();
                file.open(alphabets,FileMode.WRITE);
                file.writeUTFBytes("Have a nice day");      
                file.close();
                conn.send("app#ReceiverAIR:MyConnection", "lcHandler",t1.text,alphabets);
            }

            private function onStatus(event:StatusEvent):void {
                switch (event.level) {
                    case "status":
                        trace("LocalConnection.send() succeeded");
                        break;
                    开发者_如何学Ccase "error":
                        trace("LocalConnection.send() failed");
                        break;
                }
            }           

    ]]>
</fx:Script>



<mx:TextArea id="t1" />
<mx:Button id="b1" label="Send" click="Sender()" />

Receiver AIR

import flash.net.LocalConnection;

        import mx.collections.ArrayCollection;

        private var conn:LocalConnection;

        public function LocalConnectionReceiverExample()     {

            conn = new LocalConnection();
            conn.client = this;
            try {
                conn.allowDomain('app#SenderAIR');
                conn.connect("MyConnection");

            } catch (error:ArgumentError) {
                trace("Can't connect...the connection name is already being used by another SWF");
            }
        }

        public function lcHandler(msg:String,myfile:File):void {
            trace("i am in lcHandler");
            t1.text=msg;    
        }

    ]]>
</fx:Script>

<mx:TextArea id="t1" editable="false"/>

It gives the following error

Error #2044: Unhandled AsyncErrorEvent:. text=Error #2095: 
flash.net.LocalConnection was unable to invoke callback lcHandler. 
error=TypeError: Error #1034: 
Type Coercion failed: 
cannot convert Object@83d6791 to flash.filesystem.File.


Edited to reflect changes from the OP

Thanks for the update. From what I understand, all the objects you send through a LocalConnection must meet the following stipulations:

  1. They must be serializable using AMF
  2. The serialized data must not exceed 40K

I am guessing that File is not a serializable type.

Things to try:

  1. Register an alias. Run flash.net.registerClassAlias('FileAlias', File) on both sides
  2. Send a more primitive data type. Send the file name or the file data instead?

Good luck! Brian


u cant send a file this way... i finally created a byte array and sent the byte array to the receiver. Then i copied the byte array to a file at the receiver.

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