Air detection network

Package com.juyou.util.net {import flash. events. statusevent; import flash.net. URLRequest; import air.net. urlmonitor;/*** network listener **/public class netchecker {Private Static Var request: URLRequest = new URLRequest ("http://www.baidu.com"); Private Static Var monitor: urlmonitor; /** detection interval */Public Static Var _ interval: Number = 10000; Private Static Var available: Boolean = true; Private Static Var ob Serverlist: vector. <inetobserver> = new vector. <inetobserver> (); Public Function netchecker () {}/ *** register the observer object * @ Param OBJ observer object */public static function attach (OBJ: inetobserver ): void {If (observerlist. indexof (OBJ) =-1) {observerlist. push (OBJ) ;}}/*** Delete observer object * @ Param OBJ observer object */public static function detach (OBJ: inetobserver): void {var index: int = observerlist. indexof (OBJ); If (Index =- 1) return; observerlist. splice (index, 1);}/*** notifies all registered observer objects */Private Static function nodifyobservers (): void {for each (var obj: inetobserver in observerlist) {obj. updatenetavailable (available);}/*** start listening to network conditions **/public static function monitornetwork (): void {If (! Monitor) monitor = new urlmonitor (request); monitor. pollinterval = _ interval; monitor. addeventlistener (statusevent. status, onstatushandler); monitor. start ();}/*** set the listening network interval * @ Param Val **/public static function set interval (VAL: number ): void {If (_ interval = Val) return; _ interval = val; If (monitor & Monitor. running) {Monitor. stop (); monitor. pollinterval = _ interval; monitor. start () ;}} publi C static function get interval (): number {return _ interval;}/*** stop listening network status **/public static function stopmonitor (): void {If (Monitor) monitor. stop ();}/*** determine whether the current network is available * @ return **/public static function get networkavailable (): Boolean {return available ;} private Static function onstatushandler (E: statusevent): void {// trace ("> onstatusevent: EVT. code = "+ E); If (E. level = "status") {va R flag: Boolean = false; If (Monitor. Available &&! Available) {trace ("network connected"); available = true; flag = true;} else if (! Monitor. available & available) {available = false; trace ("No network detected"); flag = true ;}if (FLAG) {nodifyobservers ();}}}}} package {public interface inetobserver {function updatenetavailable (Ava: Boolean): void ;}}

 

Air detection network