UPDATE: Now I've moved the AMFConnection var declaration to outside the functions in Main, and commented out some trace() commands, and now it gives new errors:
Error #2044: Unhandled NetStatusEvent:. level=error, code=NetConnection.Call.BadVersion
at AMFConnection/init()[/Users/Jan/Downloads/amfphp1/AMFConnection.as:32]
at AMFConnection()[/Users/Jan/Downloads/amfphp1/AMFConnection.as:23]
at Main/testConnection()[/Users/Jan/Downloads/amfphp1/Main.as:14]
at Main()[/Users/Jan/Downloads/amfphp1/Main.as:10]
All of these essentially point to AMFConnection's NetConnection initialisation: _netConnection = new NetConnection(); (where _netConnection is declared at the beginning of the class)
I'm trying to connect to AMFPHP on a server (with Flash AS3), and the swf borks when it reaches the .connect() stage. To make things easier (?) and more reusable (?), I've put all the NetConnection mechanics into a separate class, AMFConnection, which I call from the Main document class like this (details changed):
public function testConnection(e:*=null):void {
var conn:AMFConnection = new AMFConnection();
conn.table = "some_table";
conn.selections = "*";
conn.conditionals = "WHERE something = 'something'";
conn.service = "QueryAMF";
conn.method = "makeQuery";
conn.displayText = txt;
conn.gogogo("http://www.someplace.com/Amfphp");
}
AMFConnection actually starts the connection and calls the AMFPHP service with the function gogogo(), and here's where the connect() NetConnection function just won't work. Here's the main section of the AMFConncection class
private var _netConnection:NetConnection;
private var _responder:Responder;
function AMFConnection()
{
init();
}
private function init(e:* = null)
{
_netConnection = new NetConnection();
_responder = new Responder(uponResult);
}
public function gogogo(url:String):void {
trace(url);
_netConnection.connect(url);
_netConnection.call(String(service+"/"+method), new Responder(onResult, null), table, selections, conditionals);
}
A quick debug session reveals the below errors:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at AMFConnection/gogogo()[AMFConnection.as:44]
at Main/testConnection()[Main.as:20]
at Main()[Main.as:8]
Where: Main.as:20 = conn.gogogo(...), and AMFConnection.as:44 = _netConnection.connect(url);
It also fails to display the stage, instead showing the loading dots. Now, eventually I'm going to move this application to the same server as the AMFPHP service, but even when I try it there with a relative url, instead of an absolute one, it still breaks down at connect(). I've tried changing the publish settings from local only to network only, to no avail.
Any clues? Know a better way to connect to AMFPHP locally?
Cheers in advance!
JB
P.S. Post updated, see top of page.
first, i prefer to use a php file which contains my sql and params. but hey...
The most obvious reason why you might get this error would be a fault in the url i guess. I believe that the standaard gateway.php is written without a capital G. and does not situate itself in the core folder but in the amfphp folder. but then again I don't know what you have altered.
Your _netConnection must be null, and you call connect() method on null reference, so you finish with NullPointerException. Show us how you initialize _netConnnection :).
Ok, I basically remade the thing, and after a couple of hours, it decided to work. I'm not sure how, but... eh.
Thanks all for your help
Related
I'm trying to figure out how to remove the message error and what cause it.
I created a code for loading external vdo to play on Flash. Coding it inside the Action Script panel is fine so I try to make it as a class. I moved all the code and put it in a class and it works fine too. But, the error message appeared ! even though the file could play correctly.
The error says:
Error #2044: Unhandled AsyncErrorEvent:. text=Error #2095: flash.net.NetStream was unable to invoke callback onMetaData. error=ReferenceError: Error #1069: Property onMetaData not found on vdoloader and there is no default value.
at vdoloader()
This is my code
package {
import flash.display.Sprite;
import flash.net.NetConnection;
import flash.net.NetStream;
import flash.media.Video;
public class vdoloader extends Sprite {
var video;
var nc;
var ns;
public function vdoloader() {
// constructor code
nc = new NetConnection();
nc.connect(null);
ns = new NetStream(nc);
ns.client=this;
video = new Video(550,400);
addChild (video);
video.attachNetStream(ns);
ns.play("westler.flv");
}
}
}
And then I tried to put something in that vdoloader(), it said something like: "expected 1, got 0."
It is exactly that - you are not handling the meta data event by implementing a function onMetaData. The client of your player is "this", so you should have a public function onMetaData in your class.
An please oh please, use an uppercase first letter for your class name...
EDIT:
In your code you are assigning this as the netstream's client (source: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/NetStream.html):
Associate a client property with an event handler to receive the data
object. Use the NetStream.client property to assign an object to call
specific data handling functions. The object assigned to the
NetStream.client property can listen for the following data points:
onCuePoint(), onImageData(), onMetaData(), onPlayStatus(),
onSeekPoint(), onTextData(), and onXMPData(). Write procedures within
those functions to handle the data object returned from the stream
during playback. See the NetStream.client property for more
information.
So now you just need to create a function onMetaData(md:Object) that should handle the event within the very same class, i.e. vdoloader (<=as you are passing this as the client). You can check the docs how to do it: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/NetStream.html#event:onMetaData. I think that Lee Brimelow had a tutorial about this on his site - http://www.gotoandlearn.com. (I am not sure about this but I guess it is worth a try if you are interested)
It seems that if flash.net.NetConnection is instantiated and connected to an HTTP URL (such as an AMFPHP gateway), that instance is never picked up by garbage collection even after it has been closed and the only reference is set to null.
On the other hand, if the instance is connected to null (as would be done when used to play video/mp3 files), the instance is cleared from memory.
To clarify, the following connection will stick around in memory:
var stickyConn:NetConnection = new NetConnection();
stickyConn.connect("http://myserver/amfphp/gateway.php");
stickyConn.close();
stickyConn = null;
Whereas, the following connection will be cleared from memory immediately:
var tempConn:NetConnection = new NetConnection();
tempConn.connect(null);
tempConn.close();
tempConn = null;
Some things I have already tried to solve this issue:
set the client to an empty object (since the default value of the client is the NetConnection itself)
before closing the connection, call connect(null)
after closing the connection, call connect(null) and close it again
Has anyone run into this issue before? Is there a solution to this?
I have built heavyloaded FLV/Mp4 Players using AS3 quite often. When I am using a service like Akamai or Adobe's internal NetConnection Class I always keep in mind the
client object.
the is the property of NetConnection on which ALL callback methods are invoked. The default is this NetConnection instance this. If you set the client property to another object, callback methods will be invoked on that object.
In this way you can easily understand how Garbage Collection was never really applied accross each component in the same way. So, where stickyConn = null; only stops the playback, since you never declared a Weak Reference, Garbage Collection has no clue what to look for.
I have had success with differrent methods based on the specific player:
Simply stating NetConnectionObj.client = this usually suffices. But what if your NetConnection is extended or implementing an interface? Simply use a null Dictionary object:
var d:Dictionary = new Dictionary(true); . From here Garbage collection will recognize "d" as a weak reference and automatically dump it;
Hence, your snippet will look somewhat like this:
var Dc:Dictionary = new Dictionary(true);
NetConnection:NetConnection.client = Dc;
or some variation with the same intent.
I know this works, so reach out if you need help...
I may have been vague with the last answer in regards to GC and Dictionary Objects. Please take this snippet into consideration. I wrote it quickly but I try to explain the Concept of what solves your problem; mainly since I have dealt with it before:
public class Main extends MovieClip {
private var connection:NetConnection;
private var __nData:*;
private var _instance:*;
private var _closure:Function;
private var _D:Dictionary;
public function Main() {
connection = new NetConnection();
connection.addEventListener(NetStatusEvent.NET_STATUS, _nsHandle)
connection.connect(null);
}
public function _nsHandle(event:NetStatusEvent):void {
try {
connection = new NetConnection();
connection.connect(null);
connection.client = RegisterForGC(event.target);
RegisterForGC(connection);
} finally {
__nData = event.target.netConnection;
}
}
public function RegisterForGC(NCObject:*):* {
_instance = NCObject;
_closure = function ():void {}
_listener = function (e:Event):void {}
_D = new Dictionary(true);
_D[_listener] = "A";
_D[_instance] = "B";
_D[_closure] = "C";
try {
new LocalConnection().connect( "A" );
new LocalConnection().connect( "B" );
} catch (anything:*) { }
return _instance;
}
}
I'm not sure but Your example seems to suggest you are declaring your vars on stage / frame.
close(); is all you need for this to work HOWEVER....
from what I have found with NetConnection it for some reason unless all vars / functions are declared in an External class eg. public vars public function,
It stays in memory even after using close();
Pulled out my hair figuring this out with an audio streaming project.
However once I moved all coding to an external class, close(); actually closed the connection.
If your code is on a frame on stage or within MC I would create a class and declare vars & functions in said External Class.as and for some stupid reason it works.
Hope this helps.
Are you using a NetStream object and not disposing of it when finished? I only ask because I rarely see a NetConnection without a NetStream object far behind it.
The error:
ReferenceError: Error #1069: Property startTransmit not found on flash.net.NetStream and there is no default value.
I've played around with cirrus plenty of times before and have yet to see this error before. But now I cant get it to go away.
My p2p Direct connect works great just fine. But every single time i see this error pop up. It throws an exception. I can't figure out where it's exactly happening.
Has anyone encountered this before? Any ideas where I should look?
Every client object needs to have the following functions defined.
client.stopTransmit=function($p1:*,$p2:*):void{
trace("stopTransmit called",$p1,$p2);
}
client.startTransmit=function():void{
trace("startTransmit called");
}
For example, set these in the onPeerConnect function:
sendStream.client = new Object();
sendStreamClient.onPeerConnect = function(subscriber:NetStream): Boolean{
var client:Object=new Object();
client.stopTransmit=function($p1:*,$p2:*):void{
trace("stopTransmit called",$p1,$p2);
}
client.startTransmit=function():void{
trace("startTransmit called");
}
subscriber.client=farStreamClient;
}
Additionally these need to be set on your sendStreamClient's client property:
sendStreamClient.client.stopTransmit=function($p1:*,$p2:*):void{
trace("stopTransmit called",$p1,$p2);
}
sendStreamClient.client.startTransmit=function():void{
trace("startTransmit called");
}
And they need to be set on your recieveStreamClient's client property.
On the server side script, you probably (or somebody else) have set up the application, so that it calls back a function -this time it is startTransmit-, and it isn't handled on the client side.
Remove the code from the server, or add a default value, or add a function to your code.
In my similar program, i had to add the function to my code (in my case it was not 'startTransmit') :
if ("NetConnection.Connect.Success" == e.info.code) {
netConnection.client=new Object();
netConnection.client.startTransmit=startTransmit; //no columns!
}
where startTransmit is
private function startTransmit():Boolean{
return true;
}
Are you sending h264 videos? I think it is to do with that...
If you add
public function startTransmit($p1:*,$p2:*):void{
}
public function stopTransmit():void{
}
where you have your media server connection it should work fine, at least it does for me :)
There is another netstream other than receiveStream and sendStream. You should set startTransmit and stopTransmit functions on the callerns netstream, something like this:
sendStreamClient.onPeerConnect = function(callerns:NetStream): Boolean{
var farStreamClient:Object=new Object();
farStreamClient.stopTransmit=function($p1:*,$p2:*):void{
trace("-------------farStream stopTransmit called!",$p1,$p2);
}
farStreamClient.startTransmit=function():void{
trace("-------------farStream startTransmit called!");
}
callerns.client=farStreamClient;
}
The problem is not on AMS or Red5 server. Even transmitting a video on P2P from an Android device triggers the same error.
The solution worked.
Actually the stopTransmit() sends a Boolean and an integer.
It would be amazing to know what they mean.
I have opened a bug on adobe bugbase in order to have it documented or removed.
Please vote:
https://bugbase.adobe.com/index.cfm?event=bug&id=3844856
I have a swf, loaded into the non-application sandbox in Adobe AIR 1.5 (the shell is already installed with our users so I can't update to version 2+).
On the stage in the swf are buttons, movieclips, animations etc - all of these work fine.
When we add an input TextField, selecting this TextField causes a Security Sandbox Violation.
Error message (in debug mode) is (I've edited the actual file names):
[trace] *** Security Sandbox Violation ***
[trace] SecurityDomain 'file:///path/to/local/loaded.swf' tried to access incompatible context 'app:/loadingApp-debug.swf'
The user then is unable to enter text into the TextField. The rest of the application is unaffected.
The FDB stacktrace only shows:
this = [Object 57216577, class='flash.utils::Timer'].Timer/tick() at <null>:0
Has anyone got a workaround for this?
I'm guessing it's either the TextField attempting to access the stage, or an event attempting to bubble / access global properties.
I understand the air sandbox restrictions and use them daily - with sandboxBridges from parent to child and child to parent etc - perhaps there is something I need to expose to allow this to work?
Any clues?
Edit:
I've now tracked down the problem to being that the TextField attempts to do
this.stage.focus = this;
or something equivalent when MouseDown happens.
It also appears that there is no access to KeyboardEvents in loaded swfs, so my thought of making the 'field' a button and then controlling input by listening to KeyboardEvents is dead in the water.
Now looking at whether to relay events to callbacks passed through the parent sandbox bridge, or whether minimal comps might save my butt.
Ok, I have an insane workaround, but it's pretty solid. I'm going to post it almost in full here, though I'll probably make it generic and upload it to github at some point.
In my shell, I have a view-with-mediator (I'm using robotlegs) which I'm calling EventRelayer and EventRelayerMediator.
The view's only purpose is to give the mediator access to the stage.
I exposed some functions on the parentSandboxBridge:
public function requestKeyboardEventRelay(eventType:String, callback:Function):void;
public function requestMouseEventRelay(eventType:String, callback:Function):void;
public function cancelKeyboardEventRelay(eventType:String, callback:Function):void;
public function cancelMouseEventRelay(eventType:String, callback:Function):void;
My sandbox bridges always just translate into strong typed events, so these fire events like:
RelayEvent(RelayEvent.START_RELAY_REQUESTED, KeyboardEvent, eventType, callback);
RelayEvent(RelayEvent.CANCEL_RELAY_REQUESTED, MouseEvent, eventType, callback);
These are picked up by the EventRelayerMediator, and translated into handlers in an eventMap:
override public function onRegister():void
{
createRelayHandlerFactories();
eventMap.mapListener(eventDispatcher, RelayEvent.START_RELAY_REQUESTED, startRelay);
}
protected function startRelay(e:RelayEvent):void
{
var handler:Function = createRelayHandler(e.relayEventClass, e.callback);
eventMap.mapListener(view.stage, e.relayEventType, handler, e.relayEventClass);
}
protected function createRelayHandler(relayEventClass:Class, callback:Function):Function
{
var handler:Function = relayHandlerFactoriesByEventClass[relayEventClass](callback);
return handler;
}
protected function createRelayHandlerFactories():void
{
relayHandlerFactoriesByEventClass = new Dictionary();
relayHandlerFactoriesByEventClass[KeyboardEvent] = createKeyboardEventRelayHandler;
relayHandlerFactoriesByEventClass[MouseEvent] = createMouseEventRelayHandler;
}
protected function createKeyboardEventRelayHandler(callback:Function):Function
{
var handler:Function = function(e:KeyboardEvent):void
{
trace("Relaying from shell: " + e.toString());
// passing an object because the sandbox bridge doesn't allow strong typed values, only primitives
var o:Object = {};
o.type = e.type;
o.charCode = e.charCode;
o.keyCode = e.keyCode;
o.altKey = e.altKey;
o.ctrlKey = e.ctrlKey;
o.shiftKey = e.shiftKey;
// no point adding other props as we can't pass them
// to the constructor of the KeyboardEvent
callback(o)
}
return handler;
}
The loaded swf passes a callback which just re-assembles and re-dispatches the events.
My input TextField is now just a dynamic field with a click handler that activates listening for keyboard events on the root of the swf, and then updates the dynamic field accordingly.
At the moment that is super-crude but I'll break it out into a robust, tested class now I know it works.
I've used a dictionary to manage the handlers because I'm sure that memory leakage hell is about to follow and I'm expecting to have to relay the FocusEvents to stop entering text.
I need to test memory leakage, return a binding from the parentSandboxBridge function so that I can make sure I don't add the same handler twice etc etc, but Adobe - you suck for not calling this out and providing a built in relay mechanism.
I'm having quite some trouble to try and get an app I wrote in AS2 to AS3. The reason I need to go to AS3 is something icky, so I won't go into detail about it.
I've got 90% of the application running with the new code.
Now I've come to the point where I have to convert this code from AS2,
function setAnimation(theObject,id)
{
theObject.vensterid=id;
theObject.onEnterFrame = function()
{
var myHoriTween:Tween = new Tween (this,"_x",Strong.easeOut,this._x,(130+((theObject.vensterid-frameno)*260)),1,true);
}
}
setAnimation(venster0,0);
, to AS3. My attempt of doing this ended up like
function setAnimation(anObject,id) {
var theObject = this[anObject];
theObject.vensterid=id;
function slideHorizontal(event:Event)
{
var myTween:Tween = new Tween (theObject,"x",Strong.easeOut,this.x,(130+((theObject.vensterid-frameno)*260)),1,true);
}
theObject.addEventListener(Event.ENTER_FRAME,slideHorizontal);
}
setAnimation(venster0,0);
and gives me the following non-error (it doesn't show as a compiler error, but as output):
TypeError: Error #1010: A term is undefined and has no properties.
at sliding_windows_as3_fla::SlideMenu_1/setAnimation()
at sliding_windows_as3_fla::SlideMenu_1/frame1()
I think this is very strange since it doesn't say anything about which term (and there are quite a lot) and googling didn't find me an explanation either.
I didn't get the chance to test your code, because it's difficult to set up a context for it, but my thoughts would be:
You should declare the parameter types: function setAnimation(anObject:Object,id:uint):void. It's at least good practice.
var theObject = this[anObject]; is completely unnecessary if your variable anObject is an object. I think var theObject = this[anObject]; doesn't work, theObject ends up being null and that's why you get your error. If you have declared a variable called venster0, that is the instance of a class that extends Object, then you can pass the reference to it without any other trouble.
Depending on the object you work with, theObject.vensterid=id; might not work. The class that theObject instances must have the 'vensterid' property, or you will get `1119: Access of possibly undefined property vensterid through a reference with static type ...
I think your problem here is following string:
var theObject = this[anObject];
Just replace it with
var theObject = anObject;
I hope that's what you need.
Alternatively instead of
setAnimation(venster0,0);
you could pass an instance name (i.e. String):
setAnimation("venster0",0);
That will work because by this['propertyname'] you are actually accessing Object's property by name.
Just going to throw out that using the built-in Tween classes in Flash/Flex is a pain. Look into using Tweening libraries instead: Tweener, TweenLite, etc. They are much easier to work with, and you don't have to worry about maintaining references until the Tween completes.