选择大量文件时Adobe Air应用程序关闭

时间:2019-03-14 15:23:46

标签: actionscript-3 actionscript air multiple-files

在我的应用程序中,当我加载很多文件(超过100个文件)时,应用程序会自动关闭。

我正在使用FileListEvent.SELECT_MULTIPLE,此应用程序仅用于获取文件名。

function selectFile(e: MouseEvent): void {

    file_selected.browseForOpenMultiple("Selecionar fotos:", [jpgFilter]); 
    file_selected.addEventListener(FileListEvent.SELECT_MULTIPLE, onFileSelected); 
}

function clearTextArea(e:MouseEvent):void {
    textArea.text = "";
    txt_folder.text = "";
}

function onFileSelected(e: FileListEvent): void {
    trace("test");
    for (var i:uint = 0; i < e.files.length; i++) 
    {
        //trace("NOME: " + e.files[i].name);
        obj_list.push({file_name:e.files[i].name});
    }

    fileInformation(obj_list[email_number].file_name);
}


function fileInformation($name:String):void {

    var domain_name:String = "";
    var file_name:String = $name;
    var nome:String;
    var email:String;

    if(file_name.indexOf(divisor) != -1){
        nome = file_name.slice(0, file_name.indexOf(divisor) - 1);
        email = file_name.slice(file_name.indexOf(divisor) + 2, file_name.length).toUpperCase();
    }

    if(email.indexOf("(") != -1){
        email = email.slice(0, email.indexOf("(") - 1);
    }

    trace("Nome: " + nome);
    trace("Email: " + email);

    textArea.appendText(String("\n" + email).toUpperCase());

    email_number++;
    if(email_number <= obj_list.length - 1){
        fileInformation(obj_list[email_number].file_name);
    }

}

加载多个文件有限制吗?

1 个答案:

答案 0 :(得分:0)

如果选择多个文件使应用程序崩溃,我只能想到一些解决方法...

选项1)为什么不更改逻辑?试试:

  • 用户将从所需的文件夹中浏览/选择一个jpeg。
  • 然后,您的应用会自动扫描同一文件夹,以获取每个文件自己的特定.jpgfile.name文本中带有文本file.url的所有文件名。

选项2)使用外部程序获取文件名列表。如果您使用的是Windows,则可以使用命令行(例如: cmd.exe及其dir选项)。像...

使用cmd.exe /K "cd /d e:\myImagesFolder\"E:\驱动器的myImagesFolder运行命令行。
然后使用dir *.jpg获取文件夹中所有jpeg的列表。

也许将命令行输出接收到AIR应用程序中可能是崩溃问题的解决方法?

以下代码未经测试,但您希望此逻辑用于命令行输出:
(不会弹出任何终端窗口,这是静默/不可见的运行,但您可以看到任务管理器中列出的cmd.exe) :

var file_selected :File = File.documentsDirectory;
var user_Folder_Path : String = ""; //# update with User folder path (after they selected 1 file)
var str_Temp : String = "";
var str_Files : String = "";

var processInfo:NativeProcessStartupInfo = new NativeProcessStartupInfo();
var processArgs:Vector.<String> = new Vector.<String>();
var process:NativeProcess = new NativeProcess();

function selectFile (e :MouseEvent) :void 
{ 
    file_selected.browseForOpen("Selecionar fotos:", [jpgFilter]);  
    file_selected.addEventListener(Event.SELECT, fileSelected); 
} 

function fileSelected(event:Event):void 
{ 
    str_Temp = fileToOpen.nativePath;

    //# trim down to folder path eg: remove file name part
    user_Folder_Path = str_Temp.substring(0, str_Temp.lastIndexOf("\") );

    str_Temp = str_Files = ""; //reset both strings

    if(NativeProcess.isSupported)
    {
        processInfo.executable = new File("C:/Windows/System32/cmd.exe");
        processArgs.push("dir *.jpg" + " " + user_Folder_Path );
        processInfo.arguments = processArgs;

        process.addEventListener(ProgressEvent.STANDARD_OUTPUT_DATA, std_onStandardOutputData);  
        process.addEventListener(ProgressEvent.STANDARD_ERROR_DATA, std_onError);

        process.start(processInfo);
        process.standardInput.writeUTFBytes(processArgs + "\n"); 
    }
}

function std_onStandardOutputData(evt:ProgressEvent):void  
{  
    var process:NativeProcess = evt.target as NativeProcess;  
    var data:String = process.standardOutput.readUTFBytes(process.standardOutput.bytesAvailable);  
    str_Files += data; //holds file names as they come in from CMD.exe
}   

function std_onError(evt:ProgressEvent):void 
{                    
    var process:NativeProcess = evt.target as NativeProcess;  
    var data:String = process.standardError.readUTFBytes(process.standardError.bytesAvailable);  
    str_Temp += data; //holds other text data from CMD...                     
}