Dynamic type cast from id to class in objective c

Question

I would like to cast dynamically in Objective C and access instance properties. Here a pseudo code: ``` id obj; if (condition1) obj = (Class1*)[_fetchedResults objectAtIndex:indexPath.row]; else obj = (Class2*)[_fetchedResults objectAtIndex:indexPath.row]; NSNumber *latitude = obj.latitude; ``` Then the compiler tells me the following: property 'latitude' not found on object of type '__strong id' Either Class1 and Class2 are core data entities and have nearly the same kind of attributes. In condition1 _fetchedResults returns objects of type Class1 and in condition2 _fetchedResults returns objects of type Class2. Could someone give me a hint how to solve this kind of problem? Thanks!

Accepted Answer

You can access the properties through Key-Value Coding (KVC):

```
[obj valueForKey:@"latitude"]
```

Dynamic type cast from id to class in objective c

Solution

Problem