Objective-C Извлечь индекс диапазона, возвращаемого rangeOfString:

Question

Как извлечь NSUInteger index от

NSRange range = [string rangeOfString: substring]

так что я могу написать этот индекс в [array objectAtIndex:index]?

Answer 1

// make sure that the substring was actually found:
NSRange result = [string rangeOfString:substring];

if (result.location != NSNotFound)
{
    // make sure that the index exists in the array
    if (result.location < [array count])
    {
        id someObj = [array objectAtIndex:result.location];
        // do something cool with someObj here
    }
}

Answer 2

NSRange range = [string rangeOfString:substring];
NSUInteger index = range.location;
//...