Question

I’m using SBJson to retrive data from URL. How to check if I have access to the URL before downloading. I want to check this, sometime application crash if there is no network connection.

Here is my code

id response = [self objectWithUrl:[NSURL URLWithString:@"http://myurl.com/Service.svc/GetId"]];

*I’m using stringWithUrl and objectWithUrl method to download the JSON.

Answer 1

Use the Reachability API and use that URL as your hostname you are testing

http://developer.apple.com/library/ios/#samplecode/Reachability/Introduction/Intro.html

//reachabilityWithHostName- Use to check the reachability of a particular host name. 
+ (Reachability*) reachabilityWithHostName: (NSString*) hostName;