Air app Updates

Preparation: Update.xml,xxx.air Two files are stored in the Server update directory

Update.xml

<update xmlns="http://ns.adobe.com/air/framework/update/description/2.5"><versionNumber> 0.0.1</versionnumber><url>http://localhost:8080/update/xxx.air</url> <description/></update>

Check for Updates

//reading configuration Files         Public functionReadconfig ():void        {            //get the version numberAppupdater=NewApplicationupdater (); Global.getinstance (). CurrentVersion=appupdater.currentversion; varUrlload:urlloader=NewURLLoader (); Urlload.load (Newurlrequest ("Http://localhost:8080/update/update.xml"));       Urlload.addeventlistener (httpstatusevent.http_status,checkfunction); } protectedfunctionCheckfunction (event:httpstatusevent):void        {            if(Event.status = = 200) {checkversion (); }            Else            {                 This. dispatchevent (NewEvent (event.complete));
If the network does not work, skip the update}}                //Check for version Automatic UpdatesProtectedfunctionCheckversion ():void{beetleApp.startPage.Tips="Detecting version updates ..."; NativeApplication.nativeApplication.addEventListener (event.exiting,function(e:event):void {                    varOpened:array =NativeApplication.nativeApplication.openedWindows;  for(varI:int = 0; i < opened.length; i + +) {opened[i].close ();             }                }); The difference is whether there is a hint//appupdater = new Applicationupdater ();appupdater.isnewerversionfunction=isnewerversionfunction; //appupdater.configurationfile = configurationfile;            //appupdater.ischeckforupdatevisible = false;Appupdater.updateurl =Constants.update_url;            Appupdater.addeventlistener (updateevent.initialized, updaterinitialized);            Appupdater.addeventlistener (Statusupdateevent.update_status, statusupdate);            Appupdater.addeventlistener (Updateevent.before_install, Beforeinstall);            Appupdater.addeventlistener (Statusupdateerrorevent.update_error, statusupdateerror);            Appupdater.addeventlistener (Updateevent.download_start, downloadstarted);            Appupdater.addeventlistener (progressevent.progress, downloadprogress);            Appupdater.addeventlistener (Updateevent.download_complete, downloadcomplete);            Appupdater.addeventlistener (Downloaderrorevent.download_error, downloaderror);            Appupdater.addeventlistener (Errorevent.error, updatererror);                    Appupdater.initialize (); }                Private varappversion:string; Private varbaseurl:string; Private varupateversion:string; Private vardescription:string; Private varisfirstrun:string; Private varapplicationname:string; Private varinstalledversion:string; Private functionUpdaterinitialized (event:updateevent):void        {             This. IsFirstRun =Event.target.isFirstRun;  This. ApplicationName =Getapplicationname ();  This. installedversion =getapplicationversion ();        Appupdater.checknow (); }                Private functiongetapplicationversion (): String {varAppxml:xml =NativeApplication.nativeApplication.applicationDescriptor; varNs:namespace =Appxml.namespace (); returnappxml.ns::version; }                /** Getter method to get the name of the application, this does not a support multi-language. * Based on a method from Adobes Applicationupdaterdialogs.mxml, which are part of Adobes AIR Updater Framework * Al So based on Jens Krause blog post:http://www.websector.de/blog/2009/09/09/ custom-applicationupdaterui-for-using-air-updater-framework-in-flex-4/* * @return String name of Applicat Ion **/        Private functiongetapplicationname (): String {varapplicationname:string; varXmlns:namespace=NewNamespace ("Http://www.w3.org/XML/1998/namespace"); varAppxml:xml=NativeApplication.nativeApplication.applicationDescriptor; varNs:namespace=Appxml.namespace (); //filename is mandatory            varelem:xmllist=Appxml.ns::filename; //Use name are if it exists in the application descriptor            if((appxml.ns::name). Length ()! = 0) {Elem=Appxml.ns::name; }                        //See If element contains simple content            if(Elem.hassimplecontent ()) {ApplicationName=elem.tostring (); }                        returnApplicationName; }                Private functionStatusupdate (event:statusupdateevent):void        {            //Stop the event from triggering the update download/install by itselfTrace (event.tostring ());            Event.preventdefault (); if(event.available) {varalertinfo:string="Discover the new version ("+ Event.version +"), do you want to upgrade now?; varalerttitle:string="Upgrade Tips"; varalertflag:uint=alert.ok|Alert.cancel; Alert.oklabel="Yes"; Alert.cancellabel=" Great place to stay";            Alert.show (Alertinfo,alerttitle,alertflag,this,updatechoicealerthandler); }Else            {                 This. dispatchevent (NewEvent (event.complete)); }        }                Private functionUpdatechoicealerthandler (event:closeevent):void{Trace ("Updatechoicealerthandler:"+event.tostring ()); if(Event.detail = =Alert.ok) {appupdater.downloadupdate (); Trace ("Alert.ok"); }Else{appupdater.cancelupdate ();  This. dispatchevent (NewEvent (event.complete)); Trace ("Alert.cancel"); }        }            Private functionBeforeinstall (event:updateevent):void        {Trace (event); }                Private functionStatusupdateerror (event:statusupdateerrorevent):void{event.preventdefault (); }                Private functionDownloadstarted (event:updateevent):void{trace (event); }                Private functionDownloadProgress (event:progressevent):void        {            varNum:int = (event.bytesloaded/Event.bytestotal) *100;Trace ("Updated Software"+num+"%"); }                Private functionDownloadComplete (event:updateevent):void{event.preventdefault ();//Prevent default Install        }                Private functionDownloaderror (event:downloaderrorevent):void{event.preventdefault (); Trace (event.text); }                Private functionUpdatererror (event:errorevent):void        {            Trace (event.text); } protectedfunctionIsnewerversionfunction (currentversion:string, updateversion:string):Boolean         {            varLocal_vers:array = Currentversion.split ('. '); varRemote_vers:array = Updateversion.split ('. '); varLocal_ver:int; varRemote_ver:int; varLocal_points: Number= 0; varRemote_points: Number= 0;  for(vari:int=0; I<math.max (Local_vers.length, remote_vers.length); i++) {Local_ver= Local_vers.length <= I? 0: Int (local_vers[i]); Remote_ver= Remote_vers.length <= I? 0: Int (remote_vers[i]); Local_points= local_points * 100 +Local_ver; Remote_points= remote_points * 100 +Remote_ver; }            returnRemote_points >local_points; }

Air app Updates