La classe spark.components::Group est introuvable
Bonjour,
Je voudrais afficher ma webcam sur l'application mais j'ai un retour d'erreur renvoyé via firefox que je n'arrive pas à résoudre à savoir :
VerifyError: Error #1014: La classe spark.components::Group est introuvable.
Je comprends le message mais je ne comprend pas trop comment fonctionnent les dépendances. J'ai vu les préférences de Flex qui permettent notamment de gérer la fusion des dépendances etc...etc... c'est encore un peu flou pour moi.
Un coup de main SVP ? Il ne doit pas me manquer grand chose.
MERCI
Ci-dessous le code copié-collé sur Internet :
Code:
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|
<?xml version="1.0" encoding="utf-8"?>
<s:Group width="640" height="480" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx">
<!-- Script block -->
<fx:Script>
<![CDATA[
// Imports
import flash.events.Event;
import flash.events.ProgressEvent;
import flash.net.Socket;
import flash.utils.ByteArray;
import mx.utils.Base64Encoder;
// Private properties
private var buffer:ByteArray = null;
private var _last:ByteArray = null;
private var _port:int = 0;
private var start:int = 0;
private var socket:Socket = null;
private var _host:String = null;
private var _file:String = null;
private var _password:String = null;
private var _username:String = null;
// **
// Public methods
// **
// Called to start stream capture
// Setup buffer and connect socket
public function stream( host:String, port:Number, file:String ):void
{
this.host = host;
this.port = port;
this.file = file;
buffer = new ByteArray();
socket = new Socket();
socket.addEventListener( Event.CONNECT, doSocketConnect );
socket.addEventListener( ProgressEvent.SOCKET_DATA, doSocketData );
socket.connect( host, port );
}
// **
// Private methods
// **
// Called to load the latest image
private function display( image:ByteArray ):void
{
var loader:SWFLoader = null;
// Save reference to last JPEG
last = image;
// Get loader from back
// Populate with new image
// Event handler triggers swap
// Minimizes flicker
loader = getElementAt( 0 ) as SWFLoader;
loader.source = image;
}
// Called to find a JPEG image in the loaded bytes
private function find():Boolean
{
var value:Boolean = false;
var copy:ByteArray = null;
var image:ByteArray = null;
var marker:ByteArray = null;
var end:int = 0;
var offset:int = 0;
offset = start;
marker = new ByteArray();
// If there are bytes and the offset is at the start
// Look for a JPEG image
if( buffer.length > 1 )
{
if( start == 0 )
{
// Look for the start of the JPEG
for( offset; offset < buffer.length - 1; offset++ )
{
buffer.position = offset;
buffer.readBytes( marker, 0, 2 );
if( marker[0] == 255 && marker[1] == 216 )
{
start = offset;
break;
}
}
}
// Look for the end of the JPEG
for( offset; offset < buffer.length - 1; offset++ )
{
buffer.position = offset;
buffer.readBytes( marker, 0, 2 );
if( marker[0] == 255 && marker[1] == 217 )
{
end = offset;
// Grab image if an end is found
image = new ByteArray();
buffer.position = start;
buffer.readBytes( image, 0, end - start );
// Display
display( image );
// Remove image from incoming buffer
copy = new ByteArray();
buffer.position = end;
buffer.readBytes( copy, 0 );
buffer = copy;
// Reset values
start = 0;
offset = 0;
// Denote that an image has been found
value = true;
}
}
}
// No image found by default
return value;
}
// **
// Event handlers
// **
// Called when the background image has finished loading
// Swaps the two loaders to pull background to front
// Called when loaded to minimize flicker
protected function doLoadComplete( event:Event ):void
{
swapElements( one, two );
}
// Called when the socket has connected
// Sends the initial HTTP request to start the stream
protected function doSocketConnect( event:Event ):void
{
var auth:Base64Encoder = null;
var request:String = null;
var source:String = null;
// HTTP GET
request = "GET " + file + " HTTP/1.1\r\nHost: localhost:80\r\n";
// Include username and password if needed
// Your specific implementation may vary
if( username != null && password != null )
{
source = username + ":" + password;
auth = new Base64Encoder();
auth.encode( source );
request = request + "Authorization: Basic " + auth.toString() + "\r\n";
}
// Keep the HTTP connection alive
// Stream the image bytes for as long as the socket is connected
request = request + "Connection: keep-alive\r\n\r\n";
// Send HTTP GET request
// Starts the stream
socket.writeMultiByte( request, "us-ascii" );
}
// Called when there are new bytes on the socket
// Reads the bytes into the buffer
// Attempts to find, extract and display the image
protected function doSocketData( event:ProgressEvent ):void
{
socket.readBytes( buffer, buffer.length );
while( find() ) {;}
}
// **
// Access methods
// **
public function get last():ByteArray
{
return _last;
}
public function set last( value:ByteArray ):void
{
_last = value;
}
public function get port():int
{
return _port;
}
public function set port( value:int ):void
{
_port = value;
}
public function get file():String
{
return _file;
}
public function set file( value:String ):void
{
_file = value;
}
public function get host():String
{
return _host;
}
public function set host( value:String ):void
{
_host = value;
}
public function get password():String
{
return _password;
}
public function set password( value:String ):void
{
_password = value;
}
public function get username():String
{
return _username;
}
public function set username( value:String ):void
{
_username = value;
}
]]>
</fx:Script>
<!-- Two instances -->
<!-- Swapped out to reduce flicker -->
<!-- Versus loading new bytes into single loader -->
<mx:SWFLoader
id="one"
horizontalCenter="0"
verticalCenter="0"
complete="doLoadComplete( event )"/>
<mx:SWFLoader
id="two"
horizontalCenter="0"
verticalCenter="0"
complete="doLoadComplete( event )"/>
</s:Group> |
