Class type Objective C
-
30-09-2019 - |
Question
In the NSObject
protocol, it defines a method that is similar to this:
-(Class) class
What type of object is the Class object? Or is it even an object? What can I do with the object? Can I get the base class or adopted protocols?
Solution
Class
is itself a class defined by the Objective-C runtime, akin to the Class
class in Java. For example, you can use the function class_getClassName()
to get the name of a class:
NSObject *o = [[[NSObject alloc] init] autorelease];
NSLog(@"%s\n", class_getClassName([o class])); // prints "NSObject"
You can do all kinds of introspection/reflection with Class
objects; see the Objective-C runtime reference for details.
OTHER TIPS
It is now
NSObject *o = [[NSObject alloc]init];
NSLog(@"%s\n", object_getClassName([o class]));
object_getClassName
instead of class_getClassName
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