更改UrlLoader.load

Question

package { 

    import flash.display.MovieClip; 
    import flash.display.Sprite; 
    import flash.events.Event; 
    import flash.events.MouseEvent; 
    import flash.events.TimerEvent; 
    import flash.utils.Timer; 
    import flash.text.StyleSheet; 
    import flash.text.TextField; 
    import flash.text.TextFieldType; 
    import flash.text.TextFormat; 
    import flash.text.* 
    import flash.net.* 


    public class SpeechBox extends MovieClip{ 

     public var textLoader:URLLoader = new URLLoader(); 
     public var box:Sprite = new Sprite(); 
     public var nextBox:Sprite = new Sprite(); 
     private var nextText:TextField = new TextField(); 
     private var textBox:TextField = new TextField(); 
     private var speechText:String; 
     public var _speechBoxCheck:Timer = new Timer(1000); 
     public var clickedNext:Boolean = false; 

     public function SpeechBox() 
     { 
      textLoader.addEventListener(Event.COMPLETE, onLoaded); 
      textBox.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownScroll); 
      _speechBoxCheck.addEventListener(TimerEvent.TIMER, speechBoxCheck); 
      _speechBoxCheck.start(); 
      //////////////////SPEECH BOX/////////////////// 
      box.graphics.lineStyle(3.5,0xffffff); 
      box.graphics.beginFill(0x003366, .35); 
      box.graphics.drawRoundRect(0,0,650,145,20); 
      box.graphics.endFill(); 
      box.x = 100; 
      box.y = 450; 
      addChild(box); 
      //////////////////SPEECH TEXT/////////////////// 
      var speechFont = new DataText(); 
      var textFormat:TextFormat = new TextFormat(); 
      textFormat.font = speechFont.fontName; 
      textFormat.align = TextFormatAlign.LEFT; 
      textFormat.leading = 3; 
      textFormat.color = 0xFFFFFF; 
      textFormat.size = 16; 

      textBox.defaultTextFormat = textFormat; 
      textBox.width = 620; 
      textBox.height = 115; 
      textBox.x = box.x + 14; 
      textBox.y = box.y + 14; 
      textBox.multiline = true; 
      textBox.wordWrap = true; 
      textBox.selectable = false; 
      addChild(textBox); 
      //////////////////NEXT BUTTON/////////////////// 
      nextBox.graphics.beginFill(0x000000, 0); 
      nextBox.graphics.drawRect(0,0,50,30); 
      nextBox.graphics.endFill(); 
      nextBox.x = box.x + 600; 
      nextBox.y = box.y + 115; 
      nextText.defaultTextFormat = textFormat; 
      nextText.text = "Next"; 
      nextText.textColor = 0xffffff; 
      nextText.autoSize = "left"; 
      nextText.selectable = false; 
      nextText.mouseEnabled = false; 
      nextText.x = nextBox.x + 2 
      nextText.y = nextBox.y + 5 
      nextBox.buttonMode = true; 
      //nextBox.mouseEnabled = true; 

      nextBox.addEventListener(MouseEvent.MOUSE_DOWN, clickNext); 
      nextBox.addEventListener(MouseEvent.MOUSE_OVER, moveOver); 
      nextBox.addEventListener(MouseEvent.MOUSE_OUT, moveOut); 
     } 
     function onLoaded(e:Event):void { 
      trace(e.target.data); 
      textBox.text = e.target.data; 
     } 
     function mouseDownScroll(event:MouseEvent):void 
     { 
      textBox.scrollV+=4; 
      textBox.addEventListener(MouseEvent.MOUSE_UP,mouseup); 
     } 
     function mouseup(event:MouseEvent):void 
     { 
      if(textBox.scrollV == textBox.maxScrollV) 
      { 
       addChild(nextBox); 
       addChild(nextText); 
      } 
     } 
     function clickNext(event:MouseEvent):void 
     { 
      trace("click"); 
      clickedNext = true; 
      _speechBoxCheck.stop(); 
      (parent as Main).onTransition.start(); 
      textBox.scrollV = 0; 
      textLoader.removeEventListener(Event.COMPLETE, onLoaded); 
      this.parent.removeChild(this); 
     } 
     function moveOver(event:MouseEvent):void 
     { 
      nextText.textColor = 0xffcc00; 
     } 
     function moveOut(event:MouseEvent):void 
     { 
      nextText.textColor = 0xffffff; 
     } 
     /////////////////////////////////////////////////////////////// 
     function speechBoxCheck(event:TimerEvent) 
     { 
      if ((parent as Main).introduction == true) 
      { 
       textLoader.load(new URLRequest("Texts/LV1introduction.txt")); 
       trace("beginning"); 
       (parent as Main).onTransition.stop(); 
      } 
      if ((parent as Main).levelNum == 1) 
      { 
       textLoader.load(new URLRequest("Texts/LV1complete.txt")); 
       trace("go to lv 2") 
       (parent as Main).onTransition.stop(); 
      } 
      if ((parent as Main).levelNum == 2) 
      { 
       textLoader.load(new URLRequest("Texts/LV2complete.txt")); 
       trace("go to lv 3") 
       (parent as Main).onTransition.stop(); 
      } 
     } 

    } 

} 

编辑：游戏开始时，LV1介绍文本开始。一旦scrollV等于maxScrollV，就会出现下一个按钮。点击它，它会自行删除，游戏开始。一旦你打败了第一阶段，levelNum自动等于2，我再次从我的主文档类中添加这个类。但是，无论什么级别，它都会一遍又一遍地显示相同的文本。

那么urlLoader总是保持不变？如果是这样，我该如何改变它？

Answer 1

可以重复使用URLLoader以使用新的URLRequest实例加载另一个数据。重用相同的URLLoader实例来加载另一个文件是完全可以的。你的问题不在URLLoader中，而是在逻辑或其他地方。你最好试试调试器来确保变量级别的值为2.

1. 你为什么要加载文本文件每秒？加载它们只会改变级别。
2. 这个textLoader实例是否附加了事件监听器？

::::::::: ::::::::: EDITED

1. 您从textLoader在clickNext删除事件侦听器（）调用。 textLoader会加载文件，但不会运行onLoaded（）来更新textBox.text

2. 您的speechBoxCheck（）方法做错了。 1.您必须在speechBox（）方法中只进行1次load（）调用。您的方法中的条件不是唯一的，并且在进行多个load（）调用时可能会造成麻烦（之前的装载操作将被取消）。考虑“其他如果”链。

3. 建议不要采用这种方式来加载文件。应避免不必要的I/O操作，特别是在运行时。只在需要时加载文件;在这种情况下，当电平发生变化时。