AFNetworkReachabilityManager return NO all the time - ios

Question

[[AFNetworkReachabilityManager sharedManager] startMonitoring];
AFNetworkReachabilityManager*manger =[AFNetworkReachabilityManager sharedManager];
BOOL is=[manger isReachable];
Why does it return NO all the time? I do know I connect the internet with wifi.

Answer 1

Requires some time to Determine network status.
So,isReachable right after startMonitoring will always return false.
You need check isReachable inside setReachabilityStatusChangeBlock ;
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status){
NSLog(#"network staus changed");
//check for network related flag
}];

Answer 2

[[AFNetworkReachabilityManager sharedManager] startMonitoring] will take little bit time to return proper value.
I'm using this code and this works for me!
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
NSLog(#"Rechability : %#", AFStringFromNetworkReachabilityStatus(status));
switch (status) {
case AFNetworkReachabilityStatusNotReachable:
{
// NO Internet Connection.
break;
}
case AFNetworkReachabilityStatusReachableViaWWAN:
{
break;
}
case AFNetworkReachabilityStatusReachableViaWiFi:
{
break;
}
case AFNetworkReachabilityStatusUnknown:
{
break;
}
default: break;
}
}];
[[AFNetworkReachabilityManager sharedManager] startMonitoring];

Answer 3

Do following steps, this is working code in my project.
Step 1:
//AppDelegate.m
[self startMonitoringTheNetwork];// Call this method didFinishLaunchingWithOptions
Step 2:
#pragma mark - Interenet Connection Status
-(void)startMonitoringTheNetwork {
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
switch (status) {
case AFNetworkReachabilityStatusUnknown:
break;
case AFNetworkReachabilityStatusReachableViaWWAN:
break;
case AFNetworkReachabilityStatusReachableViaWiFi:
//available
break;
case AFNetworkReachabilityStatusNotReachable:
//not available
break;
default:
break;
}
}];
//start monitoring
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
}
Step 3:
Add following class level method to CommonClass.h
+ (BOOL) isInternetConnected;
Step 4:
And implement above method to CommonClass.m
+(BOOL) isInternetConnected {
BOOL isConnected = NO;
if (!isConnected) {
isConnected = [AFNetworkReachabilityManager sharedManager].reachable;
}
return isConnected;
}
Step 5:
Now you are ready to access to the internet status everywhere by importing that CommonClass.h i.e #import "CommonClass.h"
Bool isInternetConnected = [CommonClass isInternetConnected];
Note : Step 3 & 4 are not compulsory, you can directly access if you want.

Answer 4

In the latest Version of AFNetworking,
Reachability should be monitered when the app is launched,ie
you should write the below code in the AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
method, so that the Rechability manager starts monitering the status when the application starts.
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
NSLog(#"Rechability : %#", AFStringFromNetworkReachabilityStatus(status));
switch (status) {
case AFNetworkReachabilityStatusNotReachable:
{
// NO Internet Connection.
break;
}
case AFNetworkReachabilityStatusReachableViaWWAN:
{
break;
}
case AFNetworkReachabilityStatusReachableViaWiFi:
{
break;
}
case AFNetworkReachabilityStatusUnknown:
{
break;
}
default: break;
}
}];
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
If you want to know the status before performing some operation you can use:
[[AFNetworkReachabilityManager sharedManager] isReachable];
If you want to know immediately if network is cut off, then you can post a NSNotification so that you can receive it anywhere and perform some operation