loader.load(new URLRequest(url + ".jpg"));
private function ioError(e:IOErrorEvent):void
{
trace("err :" + e);
if (e.type == "ioError")
{
loader.load(new URLRequest(url + ".png"));
loader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR, ioError);
loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError2);
}
}
private function ioError2(e:IOErrorEvent):void
{
trace("err :" + e);
}
feiver 发表于 2019-1-9 16:59
根据文件头数据判断文件类型
JPEG (jpg),文件头:FFD8FF
PNG (png),文件头:89504E47
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