我想在类中调用外部函数。这就是代码;
在checkConnectionStatus函数中,
此[_funcNameForSucceededCon]。适用();不起作用,因为“this”是类,而不是Application。我如何在此时联系应用程序或我该怎么办?
任何帮助将不胜感激。
最好的问候, 米拉。
package myLibrary
{
import air.net.URLMonitor;
import flash.events.Event;
import flash.events.StatusEvent;
import flash.net.URLRequest;
public class connectionControl
{
private var _urlReq:URLRequest;
private var _urlMonitor:URLMonitor;
private var _funcNameForSucceededCon:String;
private var _funcNameForFailedCon:String;
public function connectionControl(targetURL:String, funcNameForSucceededCon:String, funcNameForFailedCon:String)
{
_urlReq = new URLRequest(targetURL);
_urlMonitor = new URLMoniotor(_urlReq);
_urlMonitor.addEventListener(StatusEvent.STATUS, checkConnectionStatus);
_funcNameForSucceededCon = funcNameForSucceededCon;
_funcNameForFailedCon = funcNameForFailedCon;
if(_urlMonitor.running == false)
{
_urlMonitor.start();
}
else
{
_urlMonitor.stop();
_urlMonitor.start();
}
}
private function checkConnectionStatus(e:Event):void
{
_urlMonitor.removeEventListener(StatusEvent.STATUS, checkConnectionStatus);
if(_urlMonitor.available)
{
this[_funcNameForSucceededCon].apply();
}
else
{
this[_funcNameForFailedCon].apply();
}
}
}
}
答案 0 :(得分:2)
您已传递要用作回调的函数名称。使用函数本身并将其传递给connectionControl。
public class connectionControl
{
private var _funcSucceededCon:Function;
private var _funcFailedCon:Function;
public function connectionControl(targetURL:String, funcSucceededCon:Function, funcFailedCon:Function)
{
_urlReq = new URLRequest(targetURL);
_urlMonitor = new URLMoniotor(_urlReq);
_urlMonitor.addEventListener(StatusEvent.STATUS, checkConnectionStatus);
_funcSucceededCon= funcSucceededCon;
_funcFailedCon= funcFailedCon;
...
和
if(_urlMonitor.available)
{
_funcSucceededCon();
}