ios - Wifi unavailable during Network request -

ios - Wifi unavailable during Network request -

i calling web service synchronously using afnetowrking. illustration uploading info server , while uploading wifi out. how know wifi unavailable , cancel request?

i don't know have used reachability class or not. if not used given in below apple sample code.

reachability introduction

include these class in project. help of appdelegate.m file can track availability of network.

add notification observer in didfinishlaunchingwithoptions: method. notify on network changes.

- (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions { [[nsnotificationcenter defaultcenter] addobserver:self selector:@selector(reachabilitydidchange:) name:kreachabilitychangednotification object:nil]; }

the notification method phone call when there alter in host connectivity or network connectivity.

- (void)reachabilitydidchange:(nsnotification *)notification { reachability *reachability = (reachability *)[notification object]; networkstatus internetstatus = [reachability currentreachabilitystatus]; switch (internetstatus) { case notreachable: { nslog(@"the net down."); break; } case reachableviawifi: { nslog(@"the net working via wifi."); break; } case reachableviawwan: { nslog(@"the net working via wwan."); break; } } networkstatus hoststatus = [reachability currentreachabilitystatus]; switch (hoststatus) { case notreachable: { nslog(@"a gateway host server down."); break; } case reachableviawifi: { nslog(@"a gateway host server working via wifi."); break; } case reachableviawwan: { nslog(@"a gateway host server working via wwan."); break; } } }

cancel nsurlconnection request when lost connectivity.

to cancel on going request utilize - (void)cancel; method of nsurlconnection.

ios objective-c afnetworking-2