Reputation: 1
Im a newbie to Objective -C and having some issues with an assignment. The question is: Add a Method declaration called buttonClick that takes in a variable of type id called sender, and "returns" an IBAction event
I have no idea how to do this This is what I have so Far but getting errors
// method declaration called ButtonClick
@property (nonatomic,assign) id ButtonClick;
- (IBAction)return:(id)sender;
@end
Upvotes: 0
Views: 187
Reputation: 95335
Methods are declared in an @interface
and defined in an @implementation
. An interface declaration is usually put in a .h
file and looks something like this:
// Here we are deriving from NSObject, but it is not uncommon to subclass
// from other classes like NSView.
@interface MyClass : NSObject
{
int clickCount;
}
- (IBAction) buttonClick:(id) sender;
- (IBAction) resetCounter:(id) sender;
@end
The implementation of the method typically goes in a .m
file, and can look something like this:
@implementation MyClass
- (IBAction) buttonClick:(id) sender
{
clickCount++;
NSLog(@"Button has been clicked %d time(s)", clickCount);
}
- (IBAction) resetCounter:(id) sender
{
clickCount = 0;
}
@end
Use Interface Builder to connect one button to the buttonClick:
method, and another button to the resetCounter:
method.
Upvotes: 2
Reputation: 15055
Trying to make a button press method? Google is your friend. But this may help:
- (IBAction)ButtonClick:(id)sender {
[self insertOtherMethodToDoHere];
}
Not sure what you mean by returns an IBAction, but hope that helped.
Upvotes: 0