在我的项目(MP3播放器)中,当我点击“播放”按钮时它开始正常播放,但是当我点击“下一首歌曲”按钮时,它会增加我的点击次数,(2次点击乘以2次,3次点击3次.. 。)它在后台开始播放2首或3首或更多歌曲。为什么它会增加我的按钮点击次数?有人可以帮帮我吗?
按钮:
<s:Button id="PlayBtn" x="97" y="14" width="79" height="24" label="Play"
click="playButton_clickHandler(event)" enabled="true"/>
<s:Button id="nastepnyBtn" x="354" y="14" width="79" height="24" label="=>>" click="nastepnyBtn_clickHandler(event)"/>
操作:
protected function playButton_clickHandler(event:MouseEvent):void {Odtwarzaj();}
protected function nastepnyBtn_clickHandler(event:MouseEvent):void {Odtwarzaj(1);}
PlayCode:
function Odtwarzaj(tryb:Number=0):void{
var wybrany:Object = dataGridId.selectedItem;
if(wybrany!=null){
switch(tryb){
case 0:
if(playing)
stop();
WybranyKawalek=dataGridId.selectedIndex;
break;
case 1:
if(!Normalnie.selected){
Alert.show("losuje");
}else
{
if(WybranyKawalek==tablica.length-1){
WybranyKawalek=0;
}else
{
WybranyKawalek=WybranyKawalek+1;
}
}
stop();
//playing=false;
break;
case 2:
if(!Normalnie.selected){
Alert.show("losuje");
}else
{
if(WybranyKawalek==0){
WybranyKawalek=tablica.length-1;
}
else{
WybranyKawalek=WybranyKawalek-1;
}
}
stop();
//playing=false;
break;
}
Alert.show("test="+test+" tryb="+tryb+" wybrany:"+WybranyKawalek+" t.l="+tablica.length+" dg.si="+dataGridId.selectedIndex);
playingLable.text=tablica.getItemAt(WybranyKawalek).artysta+" - "+tablica.getItemAt(WybranyKawalek).tytul;
file = new File(tablica.getItemAt(WybranyKawalek).URL_PLIKU);
if(!playing){
muzyka=new Sound();
muzyka.addEventListener(IOErrorEvent.IO_ERROR, errorHandlerMusic);
muzyka.addEventListener(Event.COMPLETE, loadCompleteMusic);
muzyka.load(new URLRequest(file.url));//, context
}
}else{
Alert.show("Zaznacz plik do odegrania!");
}
test++;
}
Playstart功能:
private function play(pos:Number=0):void{
playing=true;
kanal=muzyka.play(pos,trans);
refresh();
addEventListener(Event.ENTER_FRAME, displayProgressInSec);
}
答案 0 :(得分:1)
这里的问题是每次按下按钮时调用addEventListener(Event.ENTER_FRAME,displayProgressInSec)但从不删除它。每次添加侦听器时,它都会累积,并且所有响应都会响应输入帧事件。