2010-11-08 57 views
0

我正在構建自定義音頻播放器。整個事情驅動MediaPlayback組件。我有一個隨着歌曲進程而移動的洗刷器。我希望能夠點擊並擦除它。目前我已設置爲將playheadTime設置爲等於拖動滑塊的百分比距離乘以播放組件的總時間。在釋放滑塊後,我會追蹤播放頭時間,它似乎很好,但我無法讓它繼續播放。以下是控制器中的代碼:Flash AS2:設置MediaPlayback組件的playheadTime

var totalDistance = bar_mc._width - slider_mc._width; 
var wasPlaying = false; 
this.onEnterFrame = function(){ 
    var tTime = this._parent._parent._parent.music_mp3.totalTime; 
    var cTime = this._parent._parent._parent.music_mp3.playheadTime; 
    var percDone = cTime/tTime; 
    slider_mc._x = percDone * totalDistance; 
} 
slider_mc.onPress = function(){ 
    wasPlaying = this._parent._parent._parent._parent.music_mp3.playing; 
    this._parent._parent._parent._parent.music_mp3.pause(); 
    this.startDrag(false,0,0,totalDistance,0); 
    delete this._parent.onEnterFrame; 
    this.onEnterFrame = function(){ 
      this._parent._parent._parent._parent.music_mp3.playheadTime = this._x/totalDistance * this._parent._parent._parent._parent.music_mp3.totalTime; 
    } 
} 
slider_mc.onRelease = slider_mc.onReleaseOutside = function(){ 
    this.stopDrag(); 
    if(wasPlaying){ 
      this._parent._parent._parent._parent.music_mp3.play(); 
      trace(this._parent._parent._parent._parent.music_mp3.playheadTime); 
    } 
    this._parent.onEnterFrame = function(){ 
      var tTime = this._parent._parent._parent._parent.music_mp3.totalTime; 
      var cTime = this._parent._parent._parent._parent.music_mp3.playheadTime; 
      var percDone = cTime/tTime; 
      slider_mc._x = percDone * totalDistance; 
    } 
} 

回答

0

哇,我很笨。我剛剛意識到我將播放時間設置爲onEnterFrame中的當前位置。然後在onRelease中,我不刪除那個引用,所以它只是不斷地將播放頭時間設置爲拖動了Scrubber位置的點。

需要在slider_mc.onRelease中刪除this.onEnterFrame。