Preloaders

Hello,
I am currrently having problems with a preloader, the
preloader is named preloader_mc and it is an animation, and the swf
being loaded is called mainScreen. Below is the code that i have
used, i dont know if i have done it correctly or if there are any
glaring mistakes, but i get an error appear when i run the code the
error states:
TypeError: Error #1009: Cannot access a property or method of
a null object reference.
at panFlash2_fla::MainTimeline/panFlash2_fla::frame1()
Many thanks for any help on this matter
Jude :D
My code is:

Hello,
Thank you for getting back to me :D
This code that i have posted is in the preloader.fla file on
the timeline, is this a correct place to put it or should i have it
elsewhere. Also the only other explanation that i would give is
that the file that is loading, is also loading images too, would
this perhaps cause the problem??
Thanks in advance
Jude :D

Similar Messages

Preloaders not displaying in IE 6

Hmmm, I'm having some browser-related issues with preloaders.
I'm using Captivate 2.
I've published with both a default preloader .SWF file and a
default preloader .GIF file (both default files in the Captivate
preloader gallery folder).
They both work fine when I download and view the files in
Firefox, but they don't load at all when I download and view the
file in IE 6.
Let me qualify that... they don't load in IE 6 if I link
directly to the .SWF files, but they do work when I link to the
published htm file (which we prefer not to do - we're really
wanting our output to scale to the user's browser window size... I
know, I know, I'll get grief for this, but it's what the client
wants).
Anyone know of a way to get these to display in IE 6 without
the htm file, or a reason why they don't load? If only everyone
used Firefox, which displays the preloader directly from the .SWF
or the .htm files... :)
Thanks,
David

Hi again David
Looks like you may have misunderstood me. When I said "a
_skin.swf", I simply meant a .SWF that has the same name as your
project, but containing _skin.swf. Basically, the playback control
swf.
Sounds like you are using that file and still seeing the same
result. Oh well... I figured it was a long shot but was indeed
hopeful!
Yeah, it's always been a puzzler to me as to why it works
okay in FireFox but not IE. Go figure. Maybe it's just the way that
browsers work. I always thought it was because when you linked to
the raw .SWF, it all had to load up anyway before playback
commenced.
Hope you find something that works for you! Rick

Getting ActionScript Error while trying to use Preloaders

Hi,
I am new to the Flex.Now we are using Flex 3 in our project.I
need to create custom Progress Bar, for this i got some reference
examples using preloader, by googling.But i am getting the error
while trying this.
The stack trace of the error is as follows:
Error: No class registered for interface
'mx.managers::ILayoutManager'.
at
mx.core::Singleton$/getInstance()[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\ Singleton.as:111]
at
mx.core::Application()[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Application .as:273]
at
preloader::CustomPreloader()[D:\meena\flexworkspace\src\preloader\CustomPreloader.mxml:0]
at
mx.preloaders::Preloader/initialize()[E:\dev\3.0.x\frameworks\projects\framework\src\mx\p reloaders\Preloader.as:210]
at mx.managers::SystemManager/
http://www.adobe.com/2006/flex/mx/internal::initialize()[E:\dev\3.0.x\frameworks\projects\ framework\src\mx\managers\SystemManager.as:1508
at
mx.managers::SystemManager/initHandler()[E:\dev\3.0.x\frameworks\projects\framework\src\m x\managers\SystemManager.as:2196]
Please can anyone help.............

Hi,
I am new to the Flex.Now we are using Flex 3 in our project.I
need to create custom Progress Bar, for this i got some reference
examples using preloader, by googling.But i am getting the error
while trying this.
The stack trace of the error is as follows:
Error: No class registered for interface
'mx.managers::ILayoutManager'.
at
mx.core::Singleton$/getInstance()[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\ Singleton.as:111]
at
mx.core::Application()[E:\dev\3.0.x\frameworks\projects\framework\src\mx\core\Application .as:273]
at
preloader::CustomPreloader()[D:\meena\flexworkspace\src\preloader\CustomPreloader.mxml:0]
at
mx.preloaders::Preloader/initialize()[E:\dev\3.0.x\frameworks\projects\framework\src\mx\p reloaders\Preloader.as:210]
at mx.managers::SystemManager/
http://www.adobe.com/2006/flex/mx/internal::initialize()[E:\dev\3.0.x\frameworks\projects\ framework\src\mx\managers\SystemManager.as:1508
at
mx.managers::SystemManager/initHandler()[E:\dev\3.0.x\frameworks\projects\framework\src\m x\managers\SystemManager.as:2196]
Please can anyone help.............

Preloaders, loading order and -levels

Hi, everyone
I am using Flash 8 and AS2 for my project.
My website is now working just about as I like, as long as
the whole movie has loaded. I have a main time line and several
movie clips on the time line.
Only problem is, that the movie seems to load from beginning
to end, regardless which button you choose in the menu.
If you choose a button that takes you to a frame or a movie
clip that has not yet loaded, it will act confused and show you
something other than what you want.
I am new to _levels in Flash 8.
Does the level number decide in which order things load? My
feeling is that the hightest
level number loads first, and the main movie time line is
always _level0. Is that correct?
I am thinking, if I put a preloader in each frame that the
menu points to, in f.x. _level50, then the load order would go
straight to that particular chosen frame on the time line, run the
preloader and then the movie clip (or frames following it) ,
without loading anything undesireable in the meantime. And
eliminating delay.
Is that correct?
You see many good flash sites that run preloaders at the
beginning of each new menu point. They seem to very responsive.
Is that why?
Can anyone suggest a very simple preloader script, say for
just a progression bar, (I dont care about numbers running)
that would take me to the exact frame that I want to load,
run the preloader and then the next frame?
Should the preloader be located in the frame preceding the
frame you want people to see? Or should it be imbedded in the
movieclip (if I am using a movie clip)
I want to be able to re-use the preloader easily.
Also the latest preloader scripts I have seen do not seem to
allow you to select how many frames you want loaded of the
_parent time time line before going to it. It seems you used
to be able to decide how many frames it should load.
You can download my .fla file here and see what I am talking
about:
http://www.gggraphic.com/downloads
viewed at:
http://www.grandtdesign.com
Thank you again on beforehand for all your help
ggaarde

Related to this, is there any default behaviour on the order between WEB-INF/classes and WEB-INF/lib? I guess WEB-INF/classes are found first but not sure if this is official and guaranteed behaviour.The Servlet specification (Section 10.5, page 78) defines the order of loading for WEB-INF/classes and WEB-INF/lib as follows:
>
The contents of the WEB-INF directory are:
The /WEB-INF/web.xml deployment descriptor.
The /WEB-INF/classes/ directory for servlet and utility classes. The classes in this directory must be available to the application class loader.
The /WEB-INF/lib/*.jar area for Java ARchive files. These files contain servlets, beans, static resources and JSPs packaged in a JAR file and other utility classes useful to the Web application. The Web application class loader must be able to load classes from any of these archive files.
The Web application class loader must load classes from the WEB-INF/classes directory first, and then from library JARs in the WEB-INF/lib directory.
>
-steve-

Where should I place my preloaders?

Hi all,
Would like to seek advice on where should I place the
preloaders.
I have a banner swf, menu swf, main content swf, and intro
swf. where should i load the preloader? on the main MC that will be
calling these swf? or each swf have their own preloader? that would
look rather weird.
Of should I just merged banner, menu, main content and intro
altogether? How do i do that? I am lost as to should I separate
them out or put all eggs in 1 nest. My main content will have
transitions between each sections.
since my menu is separate from the main content, how do I
point them to get the main content to change section whenever user
click on 1 sections?
I am so lost. Please advise. Thanks

Hey X, sorry I haven't responded of late, working elsewhere.
Let me address some of the questions you've had above.
1) I'm very sorry, I see that I missed that assignment when I
typed this out, within the loadFile function the correct call
should be: mcl.loadClip(src, clip);
2)the code is AS2, and yes it is legal coding. first, we're
setting up parameters for our function here, and then we pass them
this information when we call the method that we've set up, so that
we can 'feed' information to the function that then uses it to
perform it's job. the variable declarations in this case here are
called 'strict typing' (ie. src:String, file:String, ...) and it's
just a way to define variables of a particular 'type', it isn't
necessary to follow the variable names with the type declaration,
but I thought that I would include it here so that it made sense to
you and so that you could see what type of variables need to be
passed to the function. the varaibles MUST be passed to the
function in the order that they are listed.
3) yes you've got this all right :) The onLoadInit handler
fires when the loaded clip becomes instantiated on the timeline
(eg. available), previous to this point you could NOT say something
like 'clip.gotoAndPlay(10);' because the loading clip was not yet
available for the call, and it would fail. So you can use this
handler to tell the loaded clip to 'do something' if you need this
type of functionality, like say for instance that you need the
loaded swf to go to a certain 'page' depending on what button the
user pressed, this handler would be a way for you to pass that
informtion along, and tell the loaded clip to goto the correct
position, handy ;)
As to the last question in 3, I touched on that above, my bad
4) I was just talking about the name of the swf file being
called 'dummy'.
5) No, put everything in frame one, but on a different
layers. Place your preloader on the top layer, and the 'blank' MCs
(to load into) on layers below.
OK, on to your last post.
Yes, the way it's set up here the preload bar would run to
100% for each load and then start again for the next one, it also
has a text instance that tells the use what is being loaded each
time. This could all be changed, and you can certainly use you own
preloader instance, however you will need to reconstruct the method
that is handling the progress. See if you wanted ALL of the
instance your loading to equal 100% of your loader bars progress
(for the first load anyway) you can't calculate the total bytes of
all files previous to initiating the load, so you have a problem
here. One method might be to 'break up' the load and apportion the
progress indicator evenly for each item needed in the intital site
loading. what I mean by that is, if you have 4 items that are
needed to load, then each item would 'move' the progress bar by
25%, so that when 100% of the first item is loaded, the progress
bar is revealed by 25%, then the second load reveals 50%, and so
on. It will just take a little math to change the code to handle
the progressions. Now I would suggest that you NOT animate the
masking rectangle by frames, I would do this with code adjusting
the _x position of the mask by an amount that has been calculated
with the loading code. also this method will have to accomidate,
both multi-loads and singlular loads so you'll need to use another
parameter to define how the preload indicator progress is 'broken'
and into how many parts. This would end up in the math that defines
the system that controls the indicator.
OK this should be enough for you to think about for now
:)

Preloaders in external .swf not working

Hi people.
I have built this website to showcase our work
http://www.perfectmarketing.co.uk
All the movie clips shown in the centre of the screen are
external .swfs with their own preloader.
But when the site is live, the preloaders don't seem to be
working, it takes a while for the movie clip to load and the
preloader doesn't show. I want it to show so people know something
is loading.
anyone have any ideas.
Thanks,
Paul

I am experiencing the exact same problem on my site -
www.expansiondesign.com
It works in flash player but not when live (tested safari and
firefox)
I don't know if you are using the same script as I am paul.
I execute the following when each image button is pressed:
button1.onRelease = function () {
startLoading("image1.jpg");
which runs this:
function startLoading(whichImage) {
loadMovie(whichImage, "_root.image_holder");
_root.onEnterFrame = function() {
infoLoaded = _root.image_holder.getBytesLoaded();
infoTotal = _root.image_holder.getBytesTotal();
percentage = (infoLoaded/infoTotal*100);
_root.loader._yscale = percentage;
_root.loader._visible = true;
if (percentage>=100) {
delete this.onEnterFrame;
_root.loader._visible = false;
Thanks,
Barton

Preloaders or Splash Screen

I realize how stupid this question is but here it is. Converting a flash game to AIR for Android apk. Preloader does not work and therefore cannot play the game on my Android device. Should I just convert the preloader to a splash screen which I assume will work or is there need for preloaders when using AIR for Android? Thanks in advanced for any answers.

Hi 420visions
In the games I build i normally have a splash screen this allows me to do any kind of initalization in background. Once complete I jump i tot the game because the game is ready to play. I have noticed on some air for android games people have an initializing preloader then jump in the game. So you just need some sort of logic for your preloader to know when to stop playing as all assets and data are loaded and the game is ready to play.
regards Mike

Cant get my head around preloaders in Flash CS4

Hi Folks,
Can anyone help me with preloaders please?
On my site I have a simple slideshow of 3 images that I have made in Flash. They are layered and the first images starts on frame2, when the final image has finished it loops back to the start to replay, no problems with that.
However I have the fact that until the swf loads there is an empty box with a white boarder, this only lasts maybe a second or so but I wanted to apply a preloader but cant for the life of me get this to work.
The instructions with the loader say;
There is no need to edit your Flash project to implement this loader. This loader (swf) will show your project (swf) once loaded.
No I have no idea what that means and what I do. I have played around with this for an hour or so and now want to throw my pc out of the window. Very frustrating that I can make a slideshow but cannot for the life of me work this out.
Attached the preloader file for you to have a look at.
If anyone has any better preloader ideas that are simple to use I would be SO grateful.
Thanks, P.

Hi,
This still isn't working right. Blimey I didn't think a preloader would be such a task. Well it is to me!
When I get the earlier suggested numeric preloader to work it seems to mess with the display of my slideshow the first time round. For example it displays the first two images both at once, then the third and once it has done that only then does it display all three images separately.
Also I was really hoping to use either a pre bought preloader, or at least something a little more creative than numbers from 1 to 100%.
Any thoughts on doing something a little nicer?
I have Fireworks and they have some nice preloaders. Seen a tutorial on how to import into Flash but no idea how to make them work and can't find a full tutorial on how to use and make work a Fireworks preloader in Flash.
Any thoughts would be sooooooooooooooo welcome ;-)

Preloaders at Royaly-Free Purchasing Sites

I have created a website using Flash CS4 and Actionscript 3.0. I recently realized that I will need to have a preloader included. I searched the internet and found a variety of Flash components sites that will sell you very nice preloaders. There is something that I do not understand however. There was one very nice preloader that used triangles spinning in a circle. It fits my website theme perfectly. However the documentation states that the preloader opens with Flash CS3 and I have used CS4 in mine. It also says that it uses Actionscript version 2.0 whereas I have created my site using 3.0. Does this mean that I'm stuck in the water? Can I make this work? Thanks!

One thing you should note when programming in AS3 is that you can't mix AS2 and AS3 in the same code.
Therfore im pretty sure that the code is not going to work. But, converting an AS2 code to AS3 shouldnt be a problem.
Im positive that you will be able to convert it. Maybe you should have a look at a tutorial on how to make a simple preloader
and look at the code, after you understand how cosume preloaders work in flash you will have the tools you need to convert it.
http://www.republicofcode.com/tutorials/flash/as3preloader/
Thanks

Module Preloaders

I know it's relatively simple to apply custom Preloaders to flex application via the preloader property in the main application tag but I'm wondering is there a way to apply the same effect to modules as they are loaded into a module loader or to perhaps have a preloader applied to the module loader itself which would be ideal. It seems neither modules nor module loaders include the preloader property though so I'm wondering if anyone is aware of any examples of achieving this effect or has any tips on how it could be done for someone like myself that has only just recently srated employing modules/module loaders in my apps.

Browse your 'Help' files on 'SystemManager' which works perfectly with preloading modules!
regards aktell

Trouble loading external .SWF into my main page with preloaders

Dear All,
I am working on my first Flash project with AS3.
The structure of the flash site is pretty simple. I have a
stage 1165px wide x 710px height
Inside my Stage I have an horizontal bar with a menu followed
by a container right under.
**** My goal
is that whenever I click on one of the button on the menu, that the
related external .SWF loads into
the container with a preloading bar and %. *****
I already did all my .SWF files and it is pretty frustrating
at this point to be stuck at this point of development.
Please help.
-Alex

Visit gotoandlearn.com. There is a video tutorial there
regarding preloading that should answer most, if not all, of your
wonderings.

Preloaders for my video clips in Dreamweaver

I’ve been trying to get a Preloader to work with my
video clips playing in Dreamweaver. I have many short video clips
on my site, from 1 to 3 Megs starting up as their download is
completed. I’d like to have a pre-loader give my viewers a
heads-up that video is coming, but I haven’t been able to
make it happen yet. I've been through the tutorials and getting
closer.
In Scene 1 (titled: loader) I’m using a simple
"LOADING..." animation I made.
In Scene 2 (titled: main) I have the video clip, sized to fit
the table in Dreamweaver with a URL linking to the full video on
the web.
Here’s the code that I’m using and the error
message:
Whatever assistance you can offer will be greatly
appreciated, thank you for looking it over.
LB

The problem seems to be solved and the scene method is
working well! I put about 14 clips with pre-loaders attached up on
my site within Dreamweaver. Sometimes the clips are loading fast
and I don’t need to have each clip display a pre-loader.
I’m still working out the details on another preloading
file that has a row of pictures attached which is requiring more
coding - I’m trying to figure this out now.
I want to thank two mentors who have helped me reach this
level so far: Craig at LearnFlash.com & Dzedward, Senior Member
at Adobes forums.
Thank you again very much!!
Here’s the coding I was instructed to use:
stop();
myInterval = setInterval(preload,100);
function preload() {
if (_root.getBytesLoaded() >= _root.getBytesTotal()) {
gotoAndStop("main", 1);
clearInterval(myInterval);
Sincerely,
LB47
ChabadVideos.com

Flash Preloaders

(Using Flash 8 Professional) Hi, I have a Flash movie
comprised of two scenes. The first scene is fairly complex, with
over 20 layers. I want to add a preloader to the front of this
movie. In searching on the web, I found one forum where the
solution was to add a new scene containing the preloader onto the
front. Is that the best way to go?
If not, what do you recommend? I tried inserting frames on
the layers at the beginning of the first now-existing scene of the
movie, but I didn't have any success. When I tried inserting frames
or keyframes, they just added to the already existing layers
instead of opening up empty space so that the already existing
layers will start after the preloader.
If a new scene is the best idea, are there any issues
concerning the interaction between scenes that might trip me up?
Thanks!
Bill

quote:
(Using Flash 8 Professional) Hi, I have a Flash movie
comprised of two scenes. The first scene is fairly complex, with
over 20 layers. I want to add a preloader to the front of this
movie. In searching on the web, I found one forum where the
solution was to add a new scene containing the preloader onto the
front. Is that the best way to go?
If not, what do you recommend? I tried inserting frames on
the layers at the beginning of the first now-existing scene of the
movie, but I didn't have any success. When I tried inserting frames
or keyframes, they just added to the already existing layers
instead of opening up empty space so that the already existing
layers will start after the preloader.
If a new scene is the best idea, are there any issues
concerning the interaction between scenes that might trip me up?
The choice is entirely up to you, and what you are
comfortable with. If you put it at the beginning of your timeline,
you'll need to know gotoAndPlay(); function. If you create a new
scene, you'll still need to know gotoAndPlay(); function, however,
you'll need to know how to call a new scene. You can also create
your preloader in its own .fla, and call upon the .swf file,
however, you'll need to know the loadMovie function. So the choice
is yours... Good Luck
D

General problem with preloaders

Hallo there, i am using a preloader from an external file, that when the main animation loads, it displays it, clasicaly. the problem i encounter is this. when the animation loads, it doesn't start from frame 1, but instead from frame 50, for example, if the animation takes 35 seconds to load, the animation then starts from the 35th second of its timeline.
Can anyone tell me how to solve this problem?
Thanks people for your time
Fanourios Sikakis

as you know flash is STREAMED to the client, as soon as enough content has been loaded (normally the content on frame 1) it will start to play.
The only thing you can do is:
1) use the external preloader that tells the loaded swf to play when everything has been loaded, don't forget to add a stop action to the first frame of the loading swf.
or
2) use a preloader on the same swf and jump to frame 2 when everything has been loaded ( frame 2 would be your start frame.

Multiple Preloaders for Multiple Movie Clips

Designed in Flash 8, the site's timeline is all in Scene 1
and is comprised of an introduction, which contains a short video,
and 6 movie clip categories that the user selects to view. Since I
want the intro to play as soon as possible, I'd like to limit the
first preloader to just the video in the intro and not
_root.getBytesTotal. Then, as the viewer watches this short video,
the rest of Scene 1 movie clips will keep on loading. After the
intro, the viewer will choose which of the 6 categories to view.
These categories are identified with buttons which play the
particular movie clip. Since I don't know the order of the
categories they will select, I thought there should be a separate
preloader for each category. Hopefully, after they view a category,
the rest of the categories will have loaded and the loading time
will be nil. The design for the preloader is comprised of a status
bar and a percent loaded. Is there a way to limit the
_root.GetBytesTotal to specific frames? I know I could break these
categories up into separate SWF files but then I loose the
advantage of one loading while another is being viewed.

MovieClipLoader is a built in class of functions that will
allows you to easily load Media (swfs/jpgs) from external sources.
This will create a MCL object
var mcl:MovieClipLoader = new MovieClipLoader
We want the MCL object to receive events for any movie that
is loaded into the main timeline
mcl.addListener(this);
Ok. now we have a movie clip loader that is able to recieve
events. Since we want to show the progressive download and want to
do something with that content after it loads, we need to declare
two event handlers onLoadProgress and onLoadInit. onLoadProgress is
pretty straight forward. onLoadInit executes it's action as soon
all of the AS on frame 1 of its time has finished loading. In this
case, we want two different things to happen. 1st, load the first
clip and show it.... 2nd, load all remaining clips into the buffer.
But first, lets declare those next...
function onLoadProgress( target:MovieClip,
bytesLoaded:Number, bytesTotal:Number):Void {
// standard preloader code goes here
function onLoadInit( target:MovieClip ):Void {
// display the clip - this will be as easy as just calling
our loadClip function for the mcl...more on that in a minute
// If you want something special to happen, i.e. movie fades
in or a mask is applied to it, you'd do that here.
Now all we need to do is call the loadClip member function
for the MovieClipLoader. Just replace the two parameters with the
location of the swf and then the name of the instance you want it
to load into
mcl.loadClip( "myswf.swf", targetMovieClip );
The other movie clips are now a breeze as well. For each
button, just add an on(release) or onRelease = function (depending
on your situation) to just call that mcl.loadClip() line from up
above. Just change the movie you want loaded.
Let me know if you need more help...

Preloaders

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