How to add parameter in the addTarget's selector?

Question

Say I have a function like this:

-(void)activateDict:(NSNumber*)dictID{

}

Then I add a action for my button:

 [aBtn addTarget:self action:@selector(activateDict) forControlEvents:UIControlEventTouchUpInside];

There is a parameter in the activateDict function, which is (NSNumber*)dictID, so when I add the action to button, how can I add the parameter to the function? like: action:@selector(activateDict:theDictID).

Answer 1

通常，您可以将activateDict定义为activateDict: (id) sender ，然后将dictID设置为发送者的ivar。