Question

在我的应用程序上有一个按钮，用于加载位于服务器上的XML文件。 XML文件包含31条信息，每天根据日期编号发送一条。用户触摸按钮重新加载信息，因此每天都会更改。

这是我坚持的事情。当应用程序从后台恢复并触摸按钮时，它将不会提取新的一天的信息;它继续显示昨天的信息。如果我强制该应用程序退出（在手机上），然后再次启动它，它将正确加载新的一天的信息。

我的问题 - 如何在每次按键触摸时强制重新加载？

感谢您的协助。这是我的ActionScript 3代码。

2012年10月12日更新：我在几个24小时的时间段内对此进行了测试，发现它在Flash 5.5模拟器中每天都无法正确更新。所以问题可能不在手机上。我会对代码做更多的工作并回报，希望有一些改进。

// Main 'Today!' button function
var myDateDay:Date = new Date();
var dayNumber:int = myDateDay.day;  

myButton.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler);
function fl_MouseClickHandler(event:MouseEvent):void {

// Opens previously saved text file to read XML URL
var file:File = File.applicationStorageDirectory;
file = file.resolvePath("qstURL.txt");
var fileStream:FileStream = new FileStream();
fileStream.open(file, FileMode.READ);
var QSTURL:String = fileStream.readUTFBytes(fileStream.bytesAvailable);
trace("QST URL:" + " " + QSTURL);
fileStream.close();

// Load, process main XML file
var qst:XML;
var qstLoader:URLLoader = new URLLoader();
qstLoader.load(new URLRequest(QSTURL));
qstLoader.addEventListener(Event.COMPLETE, processQST);

function processQST(e:Event):void {
    qst = new XML(e.target.data);
    isProcessed();
}

//Wait until the XML is finished being processed
function isProcessed():void{
    trace("QST is processed and ready for use");

    //Clear welcome message before adding new content
    if(contains(textWelcomeMessage)){
        removeChild(textWelcomeMessage);
        removeChild(imageNoAudio);
        removeChild(textProductKeyMessage);
        trace("Welcome items removed");
    }
    else{
        trace("textWelcomeMessage not onStage");
    }

//Text Section
    // Text field formating 
    var myTextFormat1:TextFormat = new TextFormat();
    myTextFormat1.align = TextFormatAlign.LEFT; 
    myTextFormat1.size = 20; 
    myTextFormat1.font = "Verdana"; 
    myTextFormat1.color = "0x333333";
    myTextFormat1.bold = true;

    var myTextFormat2:TextFormat = new TextFormat();
    myTextFormat2.align = TextFormatAlign.LEFT; 
    myTextFormat2.size = 30; 
    myTextFormat2.font = "Verdana"; 
    myTextFormat2.color = "0x333333";

    // Text field to display title
    var title:XMLList = qst.title;
    var myText1:TextField = new TextField();
    myText1.text = title;
    myText1.autoSize = TextFieldAutoSize.NONE;
    myText1.border = false;
    myText1.width = 315;
    myText1.multiline = false;
    myText1.wordWrap = false;
    myText1.y = 125;
    myText1.x = 5; 
    myText1.setTextFormat(myTextFormat1); 

    // Text field to display question of the day
    var question:XMLList = qst.question.(@day == dayNumber).text;
    var myText2:TextField = new TextField();
    myText2.text = question;
    myText2.autoSize = TextFieldAutoSize.CENTER;
    myText2.border = false;
    myText2.width = stage.stageWidth - 60;
    myText2.multiline = true;
    myText2.wordWrap = true;
    myText2.y = 180;
    myText2.x = 30; 
    myText2.setTextFormat(myTextFormat2); 

    // Text field to display clearing statement
    var cs:XMLList = qst.clearingStatement;
    var myText3:TextField = new TextField();
    myText3.text = cs;
    myText3.autoSize = TextFieldAutoSize.CENTER;
    myText3.border = false;
    myText3.width = stage.stageWidth - 60;
    myText3.multiline = true;
    myText3.wordWrap = true;
    myText3.y = myText2.y + myText2.height + 10;
    myText3.x = 30; 
    myText3.setTextFormat(myTextFormat2); 

    //Remove existing text field to stop overlaying when button touched repeatdly
    while (numChildren > 3) removeChildAt(3);
    /Add text to stage
    addChild(myText1);
    addChild(myText2);
    addChild(myText3);

other code ....

    }//Close function "isProcessed" - load & process main XML file
} //Close function fl_MouseClickHandler - 'Today!' button

Answer 1

我认为操作系统正在缓存您的xml文件。

如果是这种情况，请尝试在网址末尾添加随机字符串。类似的东西：

url + "?v=" + Math.ceil(Math.random()*10000)

Answer 2

我终于发现了这个，发现了一个保存日期的变量，超出了主按钮的范围。因此，当单击按钮时，要重新加载所有内容，它不会重新加载日期并更新此变量。因此，日期编号未更新，此用于检索每天的信息。

它如何变得更好？

XML文件没有重新加载onResume。

2 个答案: