How to return BOOL when checking internet connection in XCODE

Question

I want to be able to check for internet connectivity when my View loads. To predetermine the contents of my view.

I have the following viewDidLoad method:

Answer 1

Yo can respect the asynchronicity in the implementation and modify the signature of the method to accept a block too.

First you typedef your new block in the header

typedef void(^ReachabilityCompletionBlock)(BOOL reachable);

then

- (void)isInternetReachable:(ReachabilityCompletionBlock)paramReachabilityBlock
{
    NSLog(@"Starting connection test");

    internetReachableFoo = [Reachability reachabilityWithHostname:@"www.google.com"];

    // Internet is reachable
    internetReachableFoo.reachableBlock = ^(Reachability*reach){
    // Update the UI on the main thread
    dispatch_async(dispatch_get_main_queue(), ^{
        NSLog(@"We have internet");
        paramReachabilityBlock(YES); 
        });
    };

    // Internet is not reachable
    internetReachableFoo.unreachableBlock = ^(Reachability*reach){
    // Update the UI on the main thread
    dispatch_async(dispatch_get_main_queue(), ^{
        NSLog(@"We do not have internet");
        paramReachabilityBlock(NO);
        });
    };

    [internetReachableFoo startNotifier];
}