How to call static methods of parent class in Objective - C.

Question

Question: How to call superclass static method ?

I mean directly by using:

[SuperClassName method]

OR

There is any other way existed?

Answer 1

If you wants to call drive class methods from base class then, declare class method in your drive class like this: using (+) sign before method name.

+(void)myClassMethod;

Call this method from base class like this:

[YourDriveClassName myClassMethod];

Or you wants to call drive class instance methods from base class, declare instance method in your drive class using (-)sign before method name.

-(void)sayHelloToSomeOne:(NSString *)greeting;

Call this method from base class.

[super sayHelloToSomeOne:@"Hello Worlds!"];

Answer 2

In Objective-C, there are two type of Methods:

1) Class Method

e.g:

+ (void)aClassMethod;

You can call this method by his class name like : [MyClass aClassMethod]

2) Instance Method

e.g:

- (void)anInstanceMethod;

You can call this method by his class's instance name like :

MyClass *object = [[MyClass alloc] init]; [object anInstanceMethod];

Hope this will helps you.

Answer 3

If the call is from a static method. That is

+ (void)someMethod{
  [self method];
}

if call is from an instance method it is really required to call it like

- (void)someMethod{
  [SuperClassName method];
}

Answer 4

You will declare a class level method in iOS to use "+" before the method declaration.

declared in your class.h file

+ (void)yourStaticMethod;

// call is from anywhere

[yourClassName myStaticMethod];