How to catch exception in iOS?

Question

In JSON parse, save the parsing data into NSDictionary, And read the key-value like:

NSString *verCode = [JSONDict objectForKey:@\"v\"];


        

Answer 1

You can use @try{ } around code to catch exceptions.

In your case though a better approach is to look at the types of the object in the array for a key and use the right conversion as needed:

id object = [myJSONDict objectForKey:@"theValue"];

NSString *finalVal = nil;

if ( [object isKindOfClass:[NSNumber class]] )
  finalVal = [object stringValue]
else
  finalVal = object;