Graphiques itemrenderers en flex 3

Question

Quelqu'un peut-il dire, comment ajouter une image dans le tableau de données?

Answer 1

Vous devez créer une sous-classe de datatip et remplacer la fonction updateDisplayList.

Voici ce que je faisais:

override protected function updateDisplayList(w:Number, h:Number):void { 
     super.updateDisplayList(w, h); 
     this.setStyle("textAlign","left"); 
     this.setStyle("color", "0xCCCCCC"); 

     if (this.numChildren > 1) 
      this.removeChildAt(1); 

     numLines = (data.displayText as String).split("<br").length; 

     var g:Graphics = graphics; 
     g.clear(); 
     var m:Matrix = new Matrix(); 
     m.createGradientBox(w+60,h+numLines*25,0,0,0); 
     g.beginGradientFill(GradientType.LINEAR,[0x00FF00,0xFFFFFF], 
      [.1,1],[0,255],m,null,null,0); 
     g.drawRect(-30,0,w+60,h+numLines*25); 
     g.endFill(); 

     // load current image 
     var imageFile:File = File.applicationStorageDirectory.resolvePath(Constants.TINY_IMG_PATH + data.item.name); 
     var urlLoader:URLLoader = new URLLoader(); 
     urlLoader.dataFormat = URLLoaderDataFormat.BINARY; 
     urlLoader.addEventListener(Event.COMPLETE, onLoadingComplete); 
     urlLoader.load(new URLRequest(imageFile.nativePath)); 
    } 

    private function onLoadingComplete(e: Event):void 
    { 
     var dispLoader: Loader = new Loader(); 

     dispLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onParsingComplete); 
     dispLoader.loadBytes(e.currentTarget.data); 
    } 

    private function onParsingComplete(e:Event):void { 

     var container:Sprite = new Sprite(); 
     this.addChild(container); 
     container.y = numLines*15 + 10; 

     var _bitmap:Bitmap = new Bitmap((e.currentTarget.content as Bitmap).bitmapData); 
     container.graphics.beginBitmapFill(_bitmap.bitmapData, null, false, true); 
     container.graphics.drawRect(0, 0, _bitmap.width, _bitmap.height); 
     container.graphics.endFill(); 
    } 

Profitez