Question

how to get id and and another parameter from @selector?? , im trying by this but not working!

-(void)displayContent:(UIViewController *)currentView sender:(id)sender{}

and

[button addTarget:self action:@selector(displayContent:self:)     forControlEvents:UIControlEventTouchUpInside]; 

Answer 1

From Cocoa Fundamentals Guide: Communicating with Objects: Target-Action in UIKit

the UIKit framework allows three different forms of action selector:

- (void)action

- (void)action:(id)sender

- (void)action:(id)sender forEvent:(UIEvent *)event

Your method -displayContent:sender: does not match any of those signatures, so it is not valid for passing to -[UIControl addTarget:action:forControlEvents:]. You’ll have to find another way of getting currentView into your action, probably by using an instance variable to keep track of the current view.