flex - How to access a file stored in File.applicationStorageDirectory in AIR, for Android -

i have actionscript code downloads simple text file , wish display in stagewebview. file downloads , saved in file.applicationstoragedirectory successfully. can output contents console, however, cannot display file in stagewebview. according have read, should work. why can not display file downloaded , saved locally, on android?

please note, cannot change stagewebview open file remote location because user needs able access file in offline-mode.

i cannot store file on sdcard because not want user have access file.

here sample test, demonstrates trying do. using apache flex 4.9.0 , deploying android 4.1.2

<s:application xmlns:fx="http://ns.adobe.com/mxml/2009"             xmlns:s="library://ns.adobe.com/flex/spark" applicationdpi="160" > <fx:declarations>     <!-- place non-visual elements (e.g., services, value objects) here --> </fx:declarations> 

    protected var webview:stagewebview = new stagewebview();     public static const local_file_store:file = file.applicationstoragedirectory;      protected function onclick(e:event):void{          trace("file.applicationstoragedirectory: "+ file.applicationstoragedirectory.nativepath);         trace("file.desktopdirectory: "+ file.desktopdirectory.nativepath);         trace("file.applicationdirectory: "+ file.applicationdirectory.nativepath);         trace("file.documentsdirectory: "+ file.documentsdirectory.nativepath);           var loader: urlloader = new urlloader();         var request:urlrequest = new urlrequest("http://www.apache.org/dist/flex/4.9.1/readme");         loader.dataformat= urlloaderdataformat.binary;         loader.addeventlistener(event.complete, completehandler);         loader.addeventlistener(ioerrorevent.io_error, ioerrorhandler);         loader.addeventlistener(securityerrorevent.security_error, securityerrorhandler);         loader.addeventlistener(httpstatusevent.http_status, httpstatushandler);         try {             loader.load(request);         } catch (error:error) {             trace("unable load requested document.");         }     }      private function completehandler(event:event):void {         var urlloader:urlloader = urlloader(event.target);          var writefile:file = file.applicationstoragedirectory.resolvepath("test.txt");          var writestream:filestream = new filestream();         writestream.open(writefile, filemode.write);         writestream.writebytes(urlloader.data);         writestream.close();          //test if can output contents console         var readstream:filestream= new filestream();         readstream.open(writefile, filemode.read);         var content:string= readstream.readutf();         trace("file contents: "+ content);          //test if can display file in stagewebview         var sview:stagewebview= new stagewebview();         sview.stage= this.stage;         sview.viewport= new rectangle(0, 40, stage.stagewidth, stage.stageheight);         sview.addeventlistener(errorevent.error, handleerror);         sview.addeventlistener(event.complete, handlecomplete);          trace("loading file://"+writefile.nativepath);         sview.loadurl("file://"+writefile.nativepath);     }      protected function onerror(event:errorevent):void     {         trace("uh ohhhh " + event);     }      private function ioerrorhandler(event:ioerrorevent):void {         trace("ioerrorhandler: " + event);     }      private function securityerrorhandler(event:securityerrorevent):void {         trace("securityerrorhandler: " + event);     }      private function httpstatushandler(event:httpstatusevent):void {         trace("httpstatushandler: " + event);     }      protected function handleerror(event:errorevent):void     {         trace("got me error: "+ event.errorid + "  "+ event.text);     }      protected function handlecomplete(event:event):void     {         trace("done");     }  ]]> 

so there must bug in apache flex 4.9.0, because when updated flex 4.9.1, above code started work.