Flex代碼實現彙總：Flex Loading

1.實現FLex點擊下載：

private function onWmDownload(event:MouseEvent):void{

    var urlRequest:URLRequest=new URLRequest('data/tangshan/download/hellotangshan.CAB');

    urlRequest.method="POST";

    urlRequest.contentType = 'application/octet-stream';

    navigateToURL(urlRequest,"_blank");

}

2.實現loading效果：

public var dataLoading:DataLoading;

public var isDataLoadingShowing:Boolean = false;

public function showDataLoading():void{

    if(isDataLoadingShowing)return;

    dataLoading = new DataLoading();

    PopUpManager.addPopUp(dataLoading,this,true);

    PopUpManager.centerPopUp(dataLoading);

    isDataLoadingShowing = true;

}

public function removeDataLoading():void{

    PopUpManager.removePopUp(dataLoading);

    isDataLoadingShowing = false;

}

實現細節：在click事件響應函數中加入showDataLoading(),在callback中removeDataLoading()