var MyTextField:TextField = new TextField();

var MyButtonField:TextField = new TextField();

var MyFile:FileReference = new FileReference();

 

MyTextField.border = true;

MyTextField.type = TextFieldType.INPUT;

 

MyButtonField.background = true;

MyButtonField.backgroundColor = 0x339933;

MyButtonField.x = 150;

MyButtonField.height = 20;

MyButtonField.text = "Click here to save";

 

addChild(MyTextField);

addChild(MyButtonField);

MyButtonField.addEventListener(MouseEvent.CLICK, clickhandler);

 

function clickhandler(e:MouseEvent): void {

    MyFile.save(MyTextField.text);

}

private function saveFile(filePath:String, data:String):void {

        var file:File = File.documentsDirectory.resolvePath(filePath);

        var fileStream:FileStream = new FileStream();

        fileStream.open(file, FileMode.WRITE);

        fileStream.writeMultiByte(data, "Windows-1251");

        fileStream.close();

}

saveFile('asd', '')