remove event listeners by leaving a framework

Similar Questions

• Removing event listeners - are they need all the time

  My goal is to increase the performance of my project, so I would like to know if it's always a good idea to remove event listeners. Specifically, let's say I have a movie with several scenes and several frames in these scenes. Each image has an event listener:

  Example:

  Scene 1

  Image 1 (EventListener)

  Frame 2 (EventListener)

  Frame 3 (EventListener)

  Framework 4 (EventListener)

  Scene 2

  Image 1 (EventListener)

  Frame 2 (EventListener)

  Frame 3 (EventListener)

  Framework 4 (EventListener)

  Questions:

  1. Flash continues to listen to an event in the scene 1/frame 1 when the playhead on stage 1 / 2 frame?
  2. Or Flash just listening events when the playhead is in a particular frame only?
  3. Should I remove the event listener once I leave a specific frame (should there be event listeners remove on each image)?

  You must remove event if listeners is no longer necessary.

  scenes do not yet exist in your published swf file.  they exist only in the ide to help you organize your project, but the more advanced flash users avoid using scenes because they do nothing useful, once you get a deeper understanding of flash.

  so, it makes no difference what the read head scene is because the flash player doesn't know which scene is that.  those who are righteous (marked) frames on scenario main and each scene begins with a keyframe void (unless and until you put something in that keyframe).

• Even if I put a null componet and remove parent... again for important to remove event listeners?

  I'm confused about something. My Essential Action Script book mentions that you should really remove all registry event listeners when you use is no longer the component when it is defined. It applies even if its parent container is removed and you set the null object? The garbage collector should not take care to destroy the event listener registered as well since it was registered in the component that you have set to null?

  When you set a component to null, what you are defining this particular reference to null, is no no not the object itself null. The event listener maintains a reference to the component, and given that the number of references so that the object is greater than zero, it is not the garbage collector.

  You can work around this problem by setting the useWeakReference flag in the call addEventListener() to true. Be careful with this, however. If you use a weak reference, and do not remove the event listener, you can always react to events lifted between the time when it is removed and when he is recovered by garbage collected. It is generally safe, but if there are events that are triggered by a timer, that could be a problem.

• Remove event listeners

  Hello!

  I have a window PopUpManager which triggers an event just before closing (not the CloseEvent).

  I'm listening to this event and manipulate in a function.

  Q: is it better to remove the listener service that manages or calling the PopUpManager. removePopUp this popup automatically "clean" so?

  Thank you!

  A listener simply creates a reference since the dispatcher to the listener.

  In the code below, it is today a reference of "victory" to the class who

  has "myHandler" which is the document, so adding this listener will not

  cause a leak.

• How to remove event listeners dynamically?

  I have a graphic keyboard composed of clips to key.  When a key is pressed, a function is called and actions are performed. Later, I want to disable what key has been pressed by removing the listener. How can I do that dynamically using a string for the name of the listener function?

  Allows a key

  keyK.addEventListener (MouseEvent.CLICK, insertConsK);

  Disable by deleting the listener.  What is the correct syntax? char = 'k '.

  MovieClip (root) ["key" + char.toUpperCase ()] .removeEventListener (MouseEvent.CLICK, "[insertCons" + char.toUpperCase ()]);

  This ['key' + char.toUpperCase ()] .removeEventListener (MouseEvent.CLICK, this ['InsertCons' + char. toUpperCase()])

  But if each key has it's own listener function, just use e.currentTarget to the listener function and the function name hardcord.

• removeChild removes the object event listeners?

  Hello

  If you dynamically create a parent movieclip, dynamically add a selector of color of each element and add an event listener for each color picker, a removeChild on the parent movieClip removes event listeners belonging to one of her children?

  Thank you

  Shaun

  It should not.  You only delete the object from the display list, not existence.  It's still there, you don't see it, but you can bring it to life too fast that reuse addChild.

• To access the event listeners in the custom class

  I am a construction and film using the classes customized for the first time. I built a custom class and bound a clip in my film for her so that the color of the text in the video will change when he is overthrown. I have 10 occurrences of this clip in the film, so it saves me a lot of code. Instead of writing 10 to ROLL_OVER event listeners and 10 more for ROLL_OUT (as I have done in the past), one for each instance of the clip on the scene, I wrote now event listeners and the corresponding functions in the custom class. So far, so good, everything works fine. When I ride above and outside on one of the 10 instances of the clip on the stage it changes color. See code attached.
  
  However, according to what is happening in the film, that I sometimes need to turn off the headphones of events on one or more video clips. So, I wrote the code in the movie itself to remove event listeners of the instance of the clip that I need to disable. See code attached.
  
  But, alas, it does not work.
  
  I get this error:
  ReferenceError: Error #1065: Variable turnWhite is not defined.
  
  I thought that by the 'public' method in the custom class, I would be able to call from the film, but I do not. Any help or advice would be greatly appreciated. Thank you very much.

  Ned, thanks for your help. I was able to understand. Your code has been helpful, and I've used something similar to what you suggested.

• How to remove base class event listeners

  Guys, I have a base class (he is a clip) in which I added event listeners:

  addEventListener (MouseEvent.MOUSE_OVER, mouseOverHandler);

  OK, it works and everything is beautiful.

  But I have a subclass that clip in class 'regular ': as3

  class DifferentClass extends MyMovieClip

  {

  }

  you get the gist.

  Now, I want in my DifferentClass also have the MOUSE_OVER event, but without never to raise the base class event.

  No one knows how to do?

  Thank you.

  override protected function mouseOverHandler(e:MouseEvent):void {}

  do not call super. Instead, do your own thing custom

  }

  No need to call getQualifiedClassName. This is what has protected methods are for!

  Note You can also listen to a higher priority and the preventImmediatePropogation() on the event if for any reason any substitution does not work for you.

• Remove all event listeners

  If you have several running events listeners, is there a way to delete all at once rather than one at a time?

  Thank you

  Jeff

  Towards the end of the article below is an approach that someone has used a picture involving:

  http://www.almogdesign.net/blog/ActionScript-3-event-listeners-tips-tricks/

• Is there a way to clear all event listeners, to stop all the video clips, etc.?

  Is there a syntax for that?

  I have a movie that has 15 images. Each image has integrated video clips in video clips, tons of entertainment and event listeners. None is needed except when they are on the scene, on the frame. However, the animations continue even when the frame is left.

  For example, I have a framework that shows a rendered animation dynamically the leaves that fall from the tree. When the frame is left, the leaves continue to decline.

  There are many cases of this kind of thing happens.

  
  Ideally, I'd like to just be able to erase everything when a new image is loaded, since no animations or postponed event from one image to the other listeners.

  
  Is it possible to do it without the thousands of lines of code it would take to manually remove all single animation and event listener and sounds, etc., of the scene?

  Thank you very much!

  Amber

  You must do it manually.

  or, you can convert each image into a swf file.  load each swf when necessary and, if you're publishing to fp 10 +, you can apply unloadAndStop() to kill all the flows in the SWF loaded and ready these assets to gc.

• Event listeners generate errors while the modal windows are shown.

  Hi all

  I have an interface in ui script that relies on headphones for events initialized as follows:

  		var button = palette.add ('image', rect);
  		button.onDraw = buttonDraw;
  		button.addEventListener ('mouseover', onMouse, false);
  		button.addEventListener (onMouse, 'mouseout/mouseouthandler()', false);
  		button.addEventListener ("mousedown", onMouse, false);
  		button.addEventListener ("mouseup", onMouse, false ");

  I need these events if I change images (false buttons) when the user moves the mouse over them or click on one of them. Everything works as it should, until I decided to give something back. Although made in After Effects, a window or something is open somewhere and it makes all the unnecessary scripts, they do not meet the entry to any user, and it is very good for me. It works the same for all of the scripts that I tested.

  The real problem is with event listeners. The scripts that use will generate them a substantive error if no listener is enabled. And when rendering finished, AE will display a pop-up allowing you to know these errors. Also the interface script stops turning completely until you close open again.

  The error message is:

  "Cannot run a script so that a modal dialog box is waiting for answer".

  I thought to replace all the headphones by the other type of reminder like 'onClick', but it seems that there is no work around to "mouseover" or "mouseout/mouseouthandler()".

  It is a real problem for my user interface, as if the user has my Panel anchored somewhere in the interface and simply move the mouse on one of the buttons, it will end with the error at the end to make it. There are also I can't do anything to avoid the listeners to run, because once the script is loaded, we lose all control of what goes with it, no way to temporarily remove listeners.

  Any ideas on how to solve this problem?

  I found a solution to my problem.

  I had to remove the listenerer of the 'mouseout/mouseouthandler()' event when my custom onDraw function has been executed as a result of the actual mouse out (in other words drawing my picture in the iddle version). Then I just reinstall the event "mouseout/mouseouthandler()" at the "mouseover" event is triggered.

  I also tried to remove the "mouseout/mouseouthandler()" in my function onMouseOut listener, but it did not work very well, the only way was to remove it in the custom onDraw.

  Another thing, I discovered, is that the "mouseout/mouseouthandler()" event is actually fired 2 times... every time! That's probably a bug.

  I'll mark this as answered even if it's more as a workaround that dirty a real difficulty. I think it's a bug in After Effects (at least).

  UQg about your question, do you have a thread for it? Otherwise, you need to create one, I also have this problem and I'll look into it.

• Hide a flash video dynamic of scene leaving the framework?

  Hi all

  I'm still working on this flash presentation and I coded a dynamic video player that calls a URL to play a mp4 file.

  The problem is that when I leave the framework that I have designated for video, video is still on the stage of content on other executives.

  Now, I've experimented with things like removeChild, but without success.

  If anyone has any suggestions on how to make the video visible on an image, or do stop playing on other images, I would be acknowledging the entry.

  Thank you!

  Here is my code if it helps.

  var alreadyExecuted:Boolean;

  If (! alreadyExecuted)

  {

  alreadyExecuted = true;

  Stop();

  start the animation button

  home_button.addEventListener (MouseEvent.ROLL_OVER, overBtn);

  home_button.addEventListener (MouseEvent.ROLL_OUT, outBtn);

  home_button.addEventListener (MouseEvent.CLICK, clickBtn);

  video_button.addEventListener (MouseEvent.ROLL_OVER, overBtn);

  video_button.addEventListener (MouseEvent.ROLL_OUT, outBtn);

  video_button.addEventListener (MouseEvent.CLICK, clickBtn);

  animation_button.addEventListener (MouseEvent.ROLL_OVER, overBtn);

  animation_button.addEventListener (MouseEvent.ROLL_OUT, outBtn);

  animation_button.addEventListener (MouseEvent.CLICK, clickBtn);

  faq_button.addEventListener (MouseEvent.ROLL_OVER, overBtn);

  faq_button.addEventListener (MouseEvent.ROLL_OUT, outBtn);

  faq_button.addEventListener (MouseEvent.CLICK, clickBtn);

  quiz_button.addEventListener (MouseEvent.ROLL_OVER, overBtn);

  quiz_button.addEventListener (MouseEvent.ROLL_OUT, outBtn);

  quiz_button.addEventListener (MouseEvent.CLICK, clickBtn);

  function overBtn(evt:MouseEvent):void

  {

  evt.currentTarget.gotoAndPlay (10);

  }

  function outBtn(evt:MouseEvent):void

  {

  evt.currentTarget.gotoAndPlay (1);

  }

  function clickBtn(evt:MouseEvent):void

  {

  evt.currentTarget.gotoAndPlay (20);

  }

  the end animation button - start navigation;

  video_button.addEventListener (MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_13);

  function fl_ClickToGoToAndStopAtFrame_13(event:MouseEvent):void

  {

  gotoAndStop (15);

  }

  animation_button.addEventListener (MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_14);

  function fl_ClickToGoToAndStopAtFrame_14(event:MouseEvent):void

  {

  gotoAndStop (30);

  }

  faq_button.addEventListener (MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_15);

  function fl_ClickToGoToAndStopAtFrame_15(event:MouseEvent):void

  {

  gotoAndStop (45);

  }

  quiz_button.addEventListener (MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_16);

  function fl_ClickToGoToAndStopAtFrame_16(event:MouseEvent):void

  {

  gotoAndStop (60);

  }

  home_button.addEventListener (MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_17);

  function fl_ClickToGoToAndStopAtFrame_17(event:MouseEvent):void

  {

  gotoAndStop (1);

  }

  end of navigation-Begin code mp3 player

  var mySound:Sound;

  var myChannel:SoundChannel;

  var soundIsPlaying:Boolean = false; prevent play overlap btn

  var p:uint = 0;

  mySound = new sound;

  mySound.load (new URLRequest("assets/track1.mp3"));

  btn_play.addEventListener (MouseEvent.CLICK, playSound);

  btn_stop.addEventListener (MouseEvent.CLICK, stopSound);

  btn_pause.addEventListener (MouseEvent.CLICK, pauseSound);

  function stopSound(myEvent:MouseEvent):void

  {

  myChannel.stop ();

  p = 0;

  soundIsPlaying = false;

  }

  function playSound(myEvent:MouseEvent):void

  {

  If (! soundIsPlaying)

  {

  myChannel = mySound.play (p); location of song //play (p)

  soundIsPlaying = true;

  }

  }

  function pauseSound(myEvent:MouseEvent):void

  {

  If (soundIsPlaying)

  {

  p = Math.floor (myChannel.position);

  myChannel.stop ();

  soundIsPlaying = false;

  }

  }

  the video code

  Video: video of var = new Video (480,204);

  Video.y = stage.stageHeight / 278-2 / 2;

  Video.x = stage.stageWidth / 290-2 / 2;

  var nc:NetConnection = new NetConnection();

  NC. Connect (null);

  var ns:NetStream = new NetStream (nc);

  ns.addEventListener (NetStatusEvent.NET_STATUS, onStatusEvent);

  function onStatusEvent(stat:Object):void

  {

  trace (stat.info.code);

  }

  var meta: Object = new Object();

  meta.onMetaData = function (meta: Object) {}

  trace (Meta.Duration);

  };

  NS.client = meta;

  video.attachNetStream (ns);

  btn_playvid.addEventListener (MouseEvent.CLICK, playFunction);

  function playFunction(evt:MouseEvent):void

  {

  NS. Play("Assets/Movie.MP4");

  }

  btn_stopvid.addEventListener (MouseEvent.CLICK, STOP function);

  function stopFunction(evt:MouseEvent):void

  {

  NS.pause ();

  }

  }

  Hide video playback on the first image buttons

  btn_playvid. Visible = false;

  btn_stopvid. Visible = false;

  Change the location of the video object there something out of the visible area of the scene, that is-1000.

• Problem of event listeners

  I have a problem with the firing of the event listeners.  I have 4 functions (see below). Function f1 is triggered when the user clicks button1 and function f3 is triggered when it is clicked on button3.  F1 calls getFileOperation (a Web service operation) and must call function f2, while the f3 function must call the function f4.

  the function f1 (event: MouseEvent): void
  {
  trace ("f1 triggered");
  getFileOperation.addEventListener (ResultEvent.RESULT, f2);
  }

  the function f2 (ev:ResultEvent): void {}
  trace ("f2 triggered");

  }

  the f3 function (event: MouseEvent): void
  {
  trace ("f3 triggered");
  getFileOperation.addEventListener (ResultEvent.RESULT, f4);
  }

  function f4(e:ResultEvent):void {}
  trace ("f4 triggered");

  }

  However, the output being given when I press followed button2 button1 is:

  F1 has triggered
  F2 triggered
  F3 triggered
  F2 triggered / / / repeated!
  F4 triggered

  Similarly, the output being given when I press button2 followed of button1 is:

  F3 triggered
  F4 triggered
  F1 has triggered
  F4 triggered / / / repeated!
  F2 triggered

  Why is f2 triggers again in the first case and f4 in the second case? How can I go about it to avoid this repetition.  Any help would be appreciated... Thank you!!

  Remove the first receiver before adding the second listening port if you do not want to call two functions of an event.

• Delete several event listeners.

  Hello

  In some cases, it is important to eliminate several event listeners in order to reduce the time CPU.

  Below is the code btn [i] .removeEventListener (event.type, arguments.callee); to //x doesn't seem to work.

  var btn:Array = (mc1, mc2);

  
  

  main.addEventListener (MouseEvent.CLICK, click);

  MC1.addEventListener (MouseEvent.Click, One);

  MC2.addEventListener (MouseEvent.Click, Two);

  
  

  function Click(event:MouseEvent):void

  {

  for (var i: uint = 0; i < btn.length; i ++)

       {

  event.currentTarget.removeEventListener (event.type, arguments.callee);

  x [i] BTN .removeEventListener (event.type, arguments.callee);

  trace(BTN[i]); [object MovieClip] twice, including mc1 and mc2 respectively.

       }

  }

  function one(event:MouseEvent):void

  {

  trace ("mc1", event.currentTarget + event.type); [object MovieClip] mc1 click.

  }

  function two(event:MouseEvent):void

  {

  trace ("mc2", event.currentTarget + event.type); mc2 click [object MovieClip].

  }

  Note that if we put code event.currentTarget.removeEventListener (event.type, arguments.callee), inside the Click function, it removes the listener very well.

  The problem may be with the table, but the trace in the loop of return [object MovieClip] twice.

  No, except if you know or can derive listener functions references:

  var btn:Array = (mc1, mc2);

  var f: Array = [1, 2]

  
  

  main.addEventListener (MouseEvent.CLICK, click);

  MC1.addEventListener (MouseEvent.Click, One);

  MC2.addEventListener (MouseEvent.Click, Two);

  
  

  function Click(event:MouseEvent):void

  {

  for (var i: uint = 0; i

  {

  event.currentTarget.removeEventListener (event.type, arguments.callee);

  BTN [i] .removeEventListener (event.type, f [i]);

  trace(BTN[i]); [object MovieClip] twice, including mc1 and mc2 respectively.

  }

  }

  function one(event:MouseEvent):void

  {

  trace ("mc1", event.currentTarget + event.type); [object MovieClip] mc1 click.

  }

  function two(event:MouseEvent):void

  {

  trace ("mc2", event.currentTarget + event.type); mc2 click [object MovieClip].

  }

• delete the MC leaving the framework

  Hi I have a framework that DID this:
  
  this.createEmptyMovieClip("news",1)
  news.loadMovie ("news.swf")
  
  When I click on a btn and arrives at another framework that news.swf file always stays above other elements.
  is there a way to remove it when I leave the current frame? (Thanks in advance)

  You can use:

  news.removeMovieClip ();