PROSAGA码农传奇-html/HTML5-拖动图像时停止Flash

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  <P>
    库中有一行你必须将它注释掉。
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  <BLOCKQUOTE>
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      context.clearRect（0,0，canvas.width，canvas.height）; //它用于清除绘图而不是重绘它。
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  </BLOCKQUOTE>
  <P>
    用我在下面给你的方法替换你的方法它会起作用。
  </p>
   <pre>
    <code>
      container.updateStyle = function() {
            clearTimeout(timeout);
            timeout = setTimeout(function() {
               // context.clearRect(0, 0, canvas.width, canvas.height);
                context.beginPath();
                context.globalCompositeOperation = "source-over";
                image = new Image();
                image.setAttribute('crossOrigin', 'anonymous');
                image.src = settings.maskImageUrl;
                image.onload = function() {
                    canvas.width = image.width;
                    canvas.height = image.height;
                    context.drawImage(image, 0, 0, image.width, image.height);
                    div.css({
                        "width": image.width,
                        "height": image.height
                    });                 
                };

img = new Image();
                img.src = settings.imageUrl;
                img.setAttribute('crossOrigin', 'anonymous');
                img.onload = function() {
                    settings.x = settings.x == 0 && initImage ? (canvas.width - (img.width * settings.scale)) / 2 : settings.x;
                    settings.y = settings.y == 0 && initImage ? (canvas.height - (img.height * settings.scale)) / 2 : settings.y;
                    context.globalCompositeOperation = 'source-atop';
                    context.drawImage(img, settings.x, settings.y, img.width * settings.scale, img.height * settings.scale);
                    initImage = false;
                };
            }, 0);
        };

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  </pre>
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