Detect WiFi Connection

[fondu-Dev]

I try the following code to detect wifi. I Also imported the Reachabillity.h file but I gives me two errors and one warning.

[[Reachability sharedReachability] setHostName:@"www.drobnik.com"]; //Warning: 'Reachabillity' may not respond to '+sharedReachabillity'
	
	NetworkStatus internetStatus = [[Reachability sharedReachability] remoteHostStatus]; //Incompatible Types
	
	if ((internetStatus != ReachableViaWiFiNetwork)) //ReachableViaWifiNetwork undeclared
	{
		UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"No Internet Connection" message:@"You require an internet connection via WiFi" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
		[myAlert show];
		[myAlert release];
	}

errors are in comments

[Momeks]

here is correct code and works fine

YourAppDelegate.h

#import <sys/socket.h>
#import <netinet/in.h>
#import <arpa/inet.h>
#import <netdb.h>
#include <SystemConfiguration/SCNetworkReachability.h>


-(BOOL)connectedToNetwork;

YourAppDelegate.m

- (BOOL) connectedToNetwork
{
	// Create zero addy
	struct sockaddr_in zeroAddress;
	bzero(&zeroAddress, sizeof(zeroAddress));
	zeroAddress.sin_len = sizeof(zeroAddress);
	zeroAddress.sin_family = AF_INET;
	
	// Recover reachability flags
	SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);
	SCNetworkReachabilityFlags flags;
	
	BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
	CFRelease(defaultRouteReachability);
	
	if (!didRetrieveFlags)
	{
		printf("Error. Could not recover network reachability flags\n");
		return NO;
	}
	
	BOOL isReachable = ((flags & kSCNetworkFlagsReachable) != 0);
	BOOL needsConnection = ((flags & kSCNetworkFlagsConnectionRequired) != 0);
	return (isReachable && !needsConnection) ? YES : NO;
}

- (void)applicationDidFinishLaunching:(UIApplication *)application {	
	
	// Override point for customization after app launch	
    [window addSubview:viewController.view];
	[window makeKeyAndVisible];
	[[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeRight];
	if (![self connectedToNetwork]) {
		UIAlertView *alert = [[UIAlertView alloc]
							  initWithTitle:@"Network Connection Error"
							  message:@"You need to be connected to the internet."
							  delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
		[alert show];
		[alert release];
	}

}

import SystemConfiguration.framework on your project

[Alexj17]

hey, sorry to bring up an old thread,

did this help you? i have the same errors, i have added the code in the second post but i have got the exact same errors still.

Alex