0

无法获取我的文件大小！我有一个加载文件的变量，然后在我的 fileCompleteLoad 事件中我想检查该文件的大小（.png）。

// clickButton event to load the file

public function onMouseClick(e:MouseEvent):void{
    _fileRef = new File();
    _fileRef.addEventListener(Event.SELECT, onFileSelected, false, 0, true);
    _fileRef.addEventListener(Event.CANCEL, onCancel, false, 0, true);
    _fileRef.addEventListener(IOErrorEvent.IO_ERROR, onIOError, false, 0, true);
    _fileRef.addEventListener(SecurityErrorEvent.SECURITY_ERROR, 
    onSecurityError,  false, 0, true);

    _fileRef.browse([_imageFilter]);
}

// selected event

public function onFileSelected(evt:Event):void
{
    _fileRef.addEventListener(ProgressEvent.PROGRESS, onProgress, false, 0, true);
    _fileRef.addEventListener(Event.COMPLETE, onComplete, false, 0, true);
    _fileRef.load();
}


// thats my eventComplete

 public function onComplete(evt:Event):void
{
    _msgSuccessErrorTextField.text = "File was successfully loaded.";
    _pngInputTextField.text = String(_fileRef.nativePath);
    _atfOutputTextField.text = _fileRef.nativePath.replace(".png",".atf");
    _inputNativeProcess = _fileRef.nativePath;
    _outputNativeProcess = _atfOutputTextField.text;
    _flagLoadedFile = new Boolean(true);

    var test:Bitmap = evt.target.data as Bitmap;
    if(test){
        trace(test.height);
    }

    _fileRef.removeEventListener(Event.SELECT, onFileSelected);
    _fileRef.removeEventListener(ProgressEvent.PROGRESS, onProgress);
    _fileRef.removeEventListener(Event.COMPLETE, onComplete);
    _fileRef.removeEventListener(Event.CANCEL, onCancel);

现在，在那种情况下，我想检查我的文件大小......我尝试了很多东西，但没有成功......有时我从我的 _fileRef.data 中得到空值。

有什么建议可以解决这个问题吗？

谢谢

4

2 回答 2

2

只是为了确定，你是否得到data了处理程序的内部onComplete？您显示的代码现在不这样做。应该是这样的：

_fileRef.addEventListener(Event.COMPLETE, onComplete, false, 0, true);

private function onComplete(e:Event):void
{
    var test:Bitmap = e.target.data as Bitmap;
    if(test)
        trace(test.height);
}
于 2013-03-14T14:12:26.263 回答
0

答案是 -

//add that on my public function onComplete(evt:Event):void{}

var loader:Loader = new Loader();

loader.loadBytes(byteArray);

loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaderComplete);

// build another event

publicfunction loaderComplete(event:Event):void
{
var loaderInfo:LoaderInfo = LoaderInfo(event.target);

var bitmapData:BitmapData = new BitmapData(loaderInfo.width,
loaderInfo.height, false,   0xFFFFFF);

bitmapData.draw(loaderInfo.loader);
// result: bitmapData

}

现在我可以得到高度，witdh 和任何东西......谢谢！

于 2013-03-15T07:14:23.993 回答