iOS - Reachability isReachable not working - ios

Question

I'm using this library: https://github.com/tonymillion/Reachability
The problem is sometimes when I check the following expression:
[[[ReachabilityManager sharedManager] reachability] isReachable]; returns NO when should be YES. I know there is internet because i invoke Rest services in the meantime.
Plus, if I execute [Reachability reachabilityWithHostname:#"www.google.com"]; and ask for the method isReachable then works as I expected.
My tests are simple, try on emulator and then plug and unplug the ethernet cable.
#implementation ReachabilityManager
#pragma mark -
#pragma mark Default Manager
+ (ReachabilityManager *)sharedManager {
static ReachabilityManager *_sharedManager = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_sharedManager = [[self alloc] init];
});
return _sharedManager;
}
#pragma mark -
#pragma mark Memory Management
- (void)dealloc {
// Stop Notifier
if (_reachability) {
[_reachability stopNotifier];
}
}
#pragma mark -
#pragma mark Class Methods
+ (BOOL)isReachable {
return [[[ReachabilityManager sharedManager] reachability] isReachable];
}
+ (BOOL)isUnreachable {
return ![[[ReachabilityManager sharedManager] reachability] isReachable];
}
+ (BOOL)isReachableViaWWAN {
return [[[ReachabilityManager sharedManager] reachability] isReachableViaWWAN];
}
+ (BOOL)isReachableViaWiFi {
return [[[ReachabilityManager sharedManager] reachability] isReachableViaWiFi];
}
#pragma mark -
#pragma mark Private Initialization
- (id)init {
self = [super init];
if (self) {
// Initialize Reachability
self.reachability = [Reachability reachabilityWithHostname:#"www.google.com"];
// Start Monitoring
[self.reachability startNotifier];
}
return self;
}
#end

Answer 1

#property (nonatomic) Reachability *hostReachability;
#property (nonatomic) Reachability *internetReachability;
#property (nonatomic) Reachability *wifiReachability;
Declare one bool,
BOOL _isInternetAvaliable;
Init your reachability,
-(void) initializeReachability {
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(reachabilityChanged:) name:kReachabilityChangedNotification object:nil];
//hostReachability
NSString *remoteHostName = #"www.apple.com";
self.hostReachability = [Reachability reachabilityWithHostName:remoteHostName];
[self.hostReachability startNotifier];
[self updateInterfaceWithReachability:self.hostReachability];
//internetReachability
self.internetReachability = [Reachability reachabilityForInternetConnection];
[self.internetReachability startNotifier];
[self updateInterfaceWithReachability:self.internetReachability];
//wifiReachability
self.wifiReachability = [Reachability reachabilityForLocalWiFi];
[self.wifiReachability startNotifier];
[self updateInterfaceWithReachability:self.wifiReachability];
}
- (void)updateInterfaceWithReachability:(Reachability *)reachability
{
if (reachability == self.hostReachability)
{
[self configurereachability:reachability];
}
if (reachability == self.internetReachability)
{
[self configurereachability:reachability];
}
if (reachability == self.wifiReachability)
{
[self configurereachability:reachability];
}
}
- (void)configurereachability:(Reachability *)reachability
{
NetworkStatus netStatus = [reachability currentReachabilityStatus];
BOOL connectionRequired = [reachability connectionRequired];
switch (netStatus)
{
case NotReachable: {
_isInternetAvaliable = NO;
break;
}
case ReachableViaWWAN: {
_isInternetAvaliable = YES;
break;
}
case ReachableViaWiFi: {
_isInternetAvaliable = YES;
break;
}
}
if (connectionRequired)
{
_isInternetAvaliable = NO;
}
}
-(BOOL) isInternetAvailable {
return _isInternetAvaliable;
}
Now you are ready to call & access internet status,
if([[ReachabilityManager sharedManager] isInternetAvailable]){
//Internet on
}

Answer 2

Finally I found a reliable solution. https://stackoverflow.com/a/14870229/2139691