1. is the code you're talking about similar to this?

this is the loadbar code

my_sound.addEventListener(ProgressEvent.PROGRESS, prog);

function prog(e:Event):void{

          var loadtime:Number = my_sound.bytesLoaded / my_sound.bytesTotal;

 

}

 

if it is, then I'm having trouble converting the loadtime number to the width of the loadbar movieclip, what code should I use? Is it progressbar.width = loadtime ?

2. I mean at the last 10 seconds of every song there should be a movie clip instance playing that shows the next song's name, artist, album... not automatically play the next song when one ends?

1. OK, so what you're saying is that I have to use progressbar.addChild(fillbar); in the script or create a mc instance with the instance name "fillbar"?

2. To use the enterframe loop, do I use my_sound.addEventListener(Event.ENTER_FRAME) or my_sound.OnEnterFrame and use a while loop?

Sorry If I (have been) bothering you mate, but I'm really stupid in AS3, I just upgraded into CS6 from 8, and I used to do easier things, but this is the first time I have done a project this size, and the first time I use AS3 to coding.

So could you please rewrite the code for me, with the fully-functional seekbar,loadbar (well the automatic movie clip at the last 10 seconds might not be necessary), I want to learn from a pro, and see where did I go wrong.

I used both of your codes, and this happens on the output panel:

This is from loadbar/progressbar code:

TypeError: Error #1009: Cannot access a property or method of a null object reference.

          at mp3player_fla::MainTimeline/frame1()

 

TypeError: Error #1009: Cannot access a property or method of a null object reference.

          at mp3player_fla::MainTimeline/playprogressF()

 

and the above is from the enterframe code

Here is the code I used:

my_sound.addEventListener(ProgressEvent.PROGRESS, prog);

          function prog(e:Event):void{

                    var loadtime:Number = my_sound.bytesLoaded / my_sound.bytesTotal;

                    progressbar.fillbar = loadtime * progressbar.width;

}

 

 

this.addEventListener(Event.ENTER_FRAME,playprogressF);

          function playprogressF(e:Event):void{

          if(my_sound.length-my_channel.position<10000){

                   next_mc.visible=true;

          }

}

 

and then I tried to make a blank MC instance, with the instance name Fake_MC, and edited the code like this:

this.fakeMC.addEventListener(Event.ENTER_FRAME,playprogressF);

          function playprogressF(e:Event):void{

          if(my_sound.length-my_channel.position<10000){

                    next_mc.visible=true;

          }

}

but the same error just keeps showing up.

here are the error codes that I found:

my_sound.addEventListener(ProgressEvent.PROGRESS, prog);

and

if(my_sound.length-my_channel.position<10000){

I even tried to edit it like this:

fakeMC.addEventListener(Event.ENTER_FRAME,playprogressF);

          function playprogressF(e:Event):void{

  var cpoint:Number = my_sound.length-my_channel.position;

          if(cpoint<10000){

                    next_mc.visible=true;  // change this to suit your code.

          }

}

 

but it still show that the error is in here:

var cpoint:Number = my_sound.length - my_channel.position;

I tried adding the codes after my_sound = new Sound();

this time, no error, but nothing happens! I even tried Simulate Download, but no loadbar, no automatic movie clip

I traced loadtime, cpoint, next_mc.visible and progressbar.width, progressbar.width*loadtime but only loadtime and cpoint changes, the other stayed at their default variables. Where could I went wrong?

import flash.net.URLLoader;

import flash.net.URLRequest;

import flash.events.Event;

import flash.media.Sound;

import flash.media.SoundChannel;

import flash.events.MouseEvent;

import flash.events.ProgressEvent;

import flash.display.MovieClip;

 

 

var my_songs:XMLList;

var my_total:Number;

 

 

var my_sound:Sound;

var my_channel:SoundChannel;

 

 

var song_position:Number;

var song_paused:Boolean;

 

 

var current_song:Number = 0;

 

 

var myXMLLoader:URLLoader = new URLLoader();

myXMLLoader.load(new URLRequest("playlist.xml"));

myXMLLoader.addEventListener(Event.COMPLETE, processXML);

 

 

function processXML (e:Event):void{

          var myXML:XML = new XML(e.target.data);

          my_songs = myXML.SONG;

          my_total = my_songs.length();

 

          myXMLLoader.removeEventListener(Event.COMPLETE, processXML);

          myXMLLoader = null;

}

 

 

function playSong(mySong:Number):void{

          var myTitle = my_songs[mySong].@TITLE;

          var myArtist = my_songs[mySong].@ARTIST;

          var myAlbum = my_songs[mySong].@ALBUM;

          var myURL = my_songs[mySong].@URL;

 

          title_txt.text = myTitle;

          artist_txt.text = myArtist;

          album_txt.text = myAlbum;

 

          if (my_channel){

          my_channel.stop()

          my_channel.removeEventListener(Event.SOUND_COMPLETE, onNext);

}

 

          my_sound = new Sound();

          my_sound.load(new URLRequest(myURL));

          my_channel = my_sound.play();

          my_channel.addEventListener(Event.SOUND_COMPLETE, onNext);

                    my_sound.addEventListener(ProgressEvent.PROGRESS, prog);

          function prog(e:Event):void{

                    var loadtime:Number = my_sound.bytesLoaded / my_sound.bytesTotal;

                                                  trace (loadtime);//trace returns numbers ranging from 0.1 to 1

                    progressbar.fillbar = loadtime * progressbar.width;

                                                  trace (loadtime * progressbar.width);//trace always returns the original width of the progressbar: 250

}

 

                    this.addEventListener(Event.ENTER_FRAME,playprogressF);

                    function playprogressF(e:Event):void{

                              var cpoint:Number = my_sound.length - my_channel.position;

                              trace (cpoint);//trace returns a range of number counting down

                              if(cpoint<10000){

                                        next_mc.visible=true;

                              // change this to suit your code.

          }

          trace (next_mc.visible);//trace always returns "true"

}

}

 

 

play_btn.addEventListener(MouseEvent.CLICK, onPlay);

function onPlay(e:MouseEvent):void{

          if (song_paused){

                    my_channel = my_sound.play(song_position);

                    song_paused = false;

          } else if (!my_channel){

                    playSong(current_song);

                    play_mc.gotoAndPlay(1);

          }

}

 

 

next_btn.addEventListener(MouseEvent.CLICK, onNext);

function onNext(e:Event):void{

          current_song++;

          if (current_song>=my_total){

                    current_song = 0;

          }

          playSong(current_song);

          play_mc.gotoAndPlay(1);

}

 

 

prev_btn.addEventListener(MouseEvent.CLICK, onPrev);

function onPrev(e:MouseEvent):void{

          current_song--;

          if (current_song<0){

                    current_song = my_total-1;

          }

          playSong(current_song);

          play_mc.gotoAndPlay(1);

}

 

 

pause_btn.addEventListener(MouseEvent.CLICK, onPause);

function onPause(e:MouseEvent):void{

          if (my_channel){

                    song_position = my_channel.position

                    my_channel.stop();

                    song_paused = true;

          }

}