iOS Development--Network Programming OC Chapter & (v) Network monitoring

Network Monitoring

With the mobile network upgrade: 2G->3G->4G even the development of 5G, the network speed is more and more fast, but this flow is like flowing water generally rushing away.

Online is not a joke: sleep forgot to close the flow, the next day the house will be moved!

This is an exaggeration to say, but as a good app developer, we need to give the most appropriate hints in the app.

Give some hints when you need to spend a lot of traffic (for example: video, downloads, etc.).

When users switch the network during user video, give the prompt to continue watching!

The following author gives a real-time monitoring of the network status change Method!

I use the network to spread the widest network monitoring class: Reachability

Click here to download this demo: Click to download

Unzip the files downloaded above and add the Networkreachability folder to the project you need to add.

Example Description: This example demonstrates how to use the Systemconfiguratio Reachalility program interface to determine the associated network connection status and state changes, so use the reachability in this example. (h/m) file in its own project is premised on the need to introduce systemconfiguration.framework.

One: How to use reachability

1- (void) Viewdidload2 {3 [Super Viewdidload];4     5     //listen for notification of changes in network status6[[Nsnotificationcenter Defaultcenter] addobserver:self selector: @selector (networkstatechange) Name: KreachabilitychangednotificationObject: nil];7     8     //get Reachability Object9Self.reachability =[reachability reachabilityforinternetconnection];Ten     //Start monitoring the network One [self.reachability Startnotifier]; A  - //    //1. Get Reachability object - //reachability *wifi = [reachability Reachabilityforlocalwifi]; the //     - //    //2. Get the current network status of the Reachability object - //networkstatus wifistatus = wifi.currentreachabilitystatus; - //if (wifistatus! = notreachable) { + //NSLog (@ "WiFi"); - //    } + } A  at- (void) Dealloc - { - [self.reachability Stopnotifier]; - [[Nsnotificationcenter Defaultcenter] removeobserver:self]; - } -  in- (void) Networkstatechange - { toNSLog (@"the network state has changed."); + [self checknetworkstate]; - } the  *- (void) Touchesbegan: (Nsset *) touches withevent: (Uievent *)Event $ {Panax Notoginseng [self checknetworkstate]; - } the  + /** A * Monitor network status the  */ +- (void) Checknetworkstate - { $     if([Icocosnetworktool Isenablewifi]) { $NSLog (@"WiFi Environment"); -}Else if([Icocosnetworktool isenable3g]) { -NSLog (@"mobile phone comes with network"); the}Else { -NSLog (@"No network");Wuyi     } the}

Judge

1 //whether WiFi2+(BOOL) Isenablewifi {3     return([[Reachability Reachabilityforlocalwifi] currentreachabilitystatus]! =notreachable);4 }5 6 //is 3G7+(BOOL) isenable3g {8     return([[Reachability reachabilityforinternetconnection] currentreachabilitystatus]! =notreachable);9}

Second: The use of AFN:(AFN is actually using the system from the reachability to achieve)

1- (void) Viewdidload2 {3 [Super Viewdidload];4     5     //additional setup after loading the view, typically from a nib.6     7Afnetworkreachabilitymanager *mgr =[Afnetworkreachabilitymanager Sharedmanager];8[Mgr setreachabilitystatuschangeblock:^(afnetworkreachabilitystatus status) {9         //Call this block when the network state changesTen         Switch(status) { One              CaseAfnetworkreachabilitystatusreachableviawifi: ANSLog (@"WIFI"); -                  Break; -                  the              CaseAfnetworkreachabilitystatusreachableviawwan: -NSLog (@"bring your Own network"); -                  Break; -                  +              Caseafnetworkreachabilitystatusnotreachable: -NSLog (@"No network"); +                  Break; A                  at              CaseAfnetworkreachabilitystatusunknown: -NSLog (@"Unknown Network"); -                  Break; -             default: -                  Break; -         } in     }]; -     //Start Monitoring to [Mgr Startmonitoring]; +      - //[[reachability reachabilityforlocalwifi] currentreachabilitystatus] =! Notreachable the //[[reachability reachabilityforinternetconnection] currentreachabilitystatus] =! notreachable; *      $[[Nsnotificationcenter Defaultcenter] addobserver:self selector: @selector (reacgabilitychange:) Name: KreachabilitychangednotificationObject: nil];Panax Notoginseng      - } the  +- (void) Dealloc A { the [[Afnetworkreachabilitymanager Sharedmanager] stopmonitoring]; +}

iOS Development--Network Programming OC Chapter & (v) Network monitoring