How to use id variable in objective-c?

Question

I have an NSArray that contains two types of objects. Lets call them Apple and Orange.

Apple *myApple = [self.searchQueryResults objectAtIndex:indexPath.row];

When I build my cell, I do not know what type in my array is apples or oranges. How can I use a generic identifier type to store an object and then cast accordingly?

Answer 1

You can use isKindOfClass:(Class)aClassto check the type of a class:

if ([myObject isKindOfClass:[Apple class]])
   // do stuff

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Apple *myApple = (Apple *)myObject;

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Answer 2

NSArray.

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