Flash controls the stop and play of animated sounds

Today, a flash friend asked how to control the sound problem in AS3, using the following small example to illustrate:

/*

As3sound.as

*/

Package {

Import Flash.display.Sprite;

Import flash.events.*;

Import Flash.media.Sound;

Import Flash.media.SoundChannel;

Import Flash.net.URLRequest;

Import Flash.utils.Timer;

Import Flash.text.TextField;

Import flash.text.TextFieldAutoSize;

Import Flash.filters.DropShadowFilter;

public class As3sound extends Sprite {

private var url:string = "Http://XXX.com/music/XXX.mp3";

private Var Soundfactory:sound;

private Var Channel:soundchannel;

private Var Positiontimer:timer;

private Var Play_btn:sprite;

private Var Stop_btn:sprite;

private var d_filtersropshadowfilter=new dropshadowfilter (5,45,0x000000,80,8,8);

Used to record whether the music is now paused

private var Bsoundstop:boolean = false;

Public Function As3sound () {

var Sxl_txt:textfield = new TextField ();

sxl_txt.text= "How to control the playback or stopping of sound in CS4";

Sxl_txt.autosize=textfieldautosize.left;

SXL_TXT.X=STAGE.STAGEWIDTH/2-SXL_TXT.WIDTH/2;

sxl_txt.y=20;

AddChild (Sxl_txt);

var mp3_request:urlrequest = new URLRequest (URL);

Soundfactory = new Sound ();

After the data has been successfully loaded

Soundfactory.addeventlistener (Event.complete, Completehandler);

When there is ID3 data available for MP3 sound

Soundfactory.addeventlistener (EVENT.ID3, Id3handler);

When you load a music error

Soundfactory.addeventlistener (Ioerrorevent.io_error, Ioerrorhandler);

Music Loading ...

Soundfactory.addeventlistener (progressevent.progress, Progresshandler);

Soundfactory.load (mp3_request);

Channel = Soundfactory.play ();

Music playback Complete

Channel.addeventlistener (Event.sound_complete, Soundcompletehandler);

Monitor the playback progress of music with a timer

Positiontimer = new Timer (1000);

Positiontimer.addeventlistener (Timerevent.timer, Positiontimerhandler);

Positiontimer.start ();

Create a button to play the music

PLAY_BTN = new Sprite ();

Play_btn.graphics.beginFill (0XFFCC32);

Play_btn.graphics.drawRoundRect (0, 0, 70, 18, 10, 10);

Play_btn.graphics.endFill ();

var Play_txt:textfield = new TextField ();

Play_txt.text = "Play";

play_txt.x=18;

play_btn.x=50;

play_btn.y=100;

Play_txt.selectable = false;

Play_btn.addchild (Play_txt);

Play_btn.filters=[d_filters];

Play_btn.addeventlistener (Mouseevent.click, Soundplay);

AddChild (PLAY_BTN);

Create a button to stop the music

STOP_BTN = new Sprite ();

Stop_btn.graphics.beginFill (0XFFCC32);

Stop_btn.graphics.drawRoundRect (0, 0, 70, 18, 10, 10);

Stop_btn.graphics.endFill ();

stop_btn.x=130;

stop_btn.y=100;

var Stop_txt:textfield = new TextField ();

stop_txt.x=18;

Stop_txt.text = "Pause";

Stop_txt.selectable = false;

Stop_btn.addchild (Stop_txt);

Stop_btn.filters=[d_filters];

Stop_btn.addeventlistener (Mouseevent.click, soundstop);

AddChild (STOP_BTN);

}

Monitor the playback progress of music

Private Function Positiontimerhandler (event:timerevent): void {

var ybf:int = channel.position.toFixed (0);

var zcd:int = soundfactory.length;

var bfs:int = Math.floor (ybf/zcd*100);

Trace ("Total music length:" +zcd, "music has played:" +YBF, "The playback Progress is:" +bfs+ "%");

}

When loading music completes

Private Function Completehandler (event:event): void {

Trace ("Load Music Complete:" + event);

}

When there is ID3 data available for MP3 sound

Private Function Id3handler (event:event): void {

Trace ("The ID3 information of the music is as follows:");

For (var s in soundfactory.id3) {

Trace ("", S, ":", Soundfactory.id3[s]);

}

Trace ("About ID3 information, see Sound class--> attribute-->id3");

}

When you load a music error

Private Function Ioerrorhandler (event:event): void {

Trace ("Load music error, error message as follows:" + event);

Positiontimer.stop ();

}

When you load music

Private Function Progresshandler (eventrogressevent): void {

var yjz:int = event.bytesloaded;

var zcd:int = event.bytestotal;

var bfs:int = Math.floor (yjz/zcd*100);

Trace ("Total music length:" +zcd, "Loaded:" +YJZ, "Loading progress is:" +bfs+ "%");

}

Music playback Complete

Private Function Soundcompletehandler (event:event): void {

Trace ("Music playback Complete:" + event);

Positiontimer.stop ();

}

Click the Play button event

Private Function Soundplay (event:mouseevent): void {

if (bsoundstop) {

Bsoundstop = false;

Channel = Soundfactory.play (channel.position.toFixed (0));

}

}

Click the Stop button event

Private Function Soundstop (event:mouseevent): void {

if (!bsoundstop) {

Bsoundstop = true;

Channel.stop ();

}

}

}

}