iOS Development-Network monitoring

Network listening to the class for Reachability.h, this Xcode project is not self-contained, need to download from GitHub, when used to remember to import systemconfiguration.framework.

The first is to set up network monitoring in APPDELEGATE.M.

[[Nsnotificationcenter Defaultcenter] addobserver:self selector: @selector (reachabilitychanged:) Name: Kreachabilitychangednotification Object:nil];

Initialization

_reachability = [reachability reachabilityforinternetconnection]; [_reachability Startnotifier]; [Self updateinterfacewithreachability:_reachability];

Implement two methods:

-(void) reachabilitychanged: (nsnotification*) note;//network connectivity Changes

-(void) Updateinterfacewithreachability: (reachability*) curreach;//processing after connection change

The following is a concrete implementation of the method, which can be changed according to the circumstances:

Connection change-(void) reachabilitychanged: (nsnotification*) Note {    reachability* Curreach = [Note Object];    Nsparameterassert ([Curreach iskindofclass: [reachability class]]);    [Self Updateinterfacewithreachability:curreach];} After processing the connection changes-(void) Updateinterfacewithreachability: (reachability*) Curreach {    ////response to the connection change.    networkstatus status = [Curreach currentreachabilitystatus];        if (status = = notreachable) {        _isreachable = NO;        No connection to the network pops up live        uialertview *netalert = [[Uialertview alloc] initwithtitle:@ "cellular data Closed" message:@ " Enable cellular data or wireless LAN to access data "Delegate:nil cancelbuttontitle:@" OK "otherbuttontitles:nil";        [Netalert show];    } else {        _isreachable = YES;    }}

iOS Development-Network monitoring