IOS---Detect network status

 

The network state of the device for reachability 1.5.typedef enum {    notreachable = 0,  //no connection    Reachableviacar Rierdatanetwork,//Use 3G/GPRS network    reachableviawifinetwork  //Use WiFi network} networkstatus;//the Device for reachability 2.0.typedef enum {    notreachable = 0,  //No connection    Reachableviawifi,  //using 3G/GPRS Network    Reachableviawwan  //Use WiFi network} networkstatus;

For example, to detect the continuation status of a particular site, you can use the following code:

reachability *r =  [reachabilityforlocalwifi];

switch ([R Currentreachabilitystatus]) {case    notreachable:        //No network connection break        ;    Case Reachableviawwan:        //Use 3G network break        ;    Case Reachableviawifi:        //Use WiFi network break        ;}

Add Reachability.h and REACHABILITY.M to your project and use Systemconfiguration.framework to make it work.

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOptions{

if ([reachability reachabilityforinternetconnection].currentreachabilitystatus==notreachable) | |  ([reachability reachabilityforlocalwifi].currentreachabilitystatus==notreachable)]  {

Uialertview *alert=[[uialertview alloc]initwithtitle:@"Warning" message:@ "your device is temporarily free of network!  "Delegate:self cancelbuttontitle:@"determines "Otherbuttontitles:nil";

[Alert show];

}

}

Add real-time monitoring of network changes

Referencing in APPDELETEGATE.M

#import "Reachability.h"
@interface Appdelegate ()
@property (Nonatomic,strong) reachability *conn;
@end

@implementation Appdelegate

-(void) reachabilitychanged: (nsnotification *) Note
{
reachability* Curreach = [Note Object];
Nsparameterassert ([Curreach iskindofclass: [reachability class]]);
NetworkStatus status = [Curreach currentreachabilitystatus];
Switch (status)
{
Case Notreachable:
No network connection
NSLog (@ "Network is not Connected");
Break
Case Reachableviawwan:
Using the 2G/3G Network
NSLog (@ "Connected cellular data");
Break
Case Reachableviawifi:
Use WiFi network
NSLog (@ "Connected WiFi");
Break
}
}

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (Nsdictionary *) launchOptions {
Add monitoring
[[Nsnotificationcenter Defaultcenter] addobserver:self selector: @selector (reachabilitychanged:) Name: Kreachabilitychangednotification Object:nil];
Self.conn = [reachability reachabilityforinternetconnection];
[Self.conn Startnotifier];
return YES;
}

IOS---Detect network status