Custom delegate not calling UITableViewController method - ios

Question

I have a custom UIButton class like below :
.h
#import <UIKit/UIKit.h>
#class FriendButton;
#protocol LongPressedButtonDelegate
- (void)buttonIsLongPressed:(FriendButton *)button;
#end
#interface FriendButton : UIButton
#property (nonatomic, weak) id<LongPressedButtonDelegate > delegate;
#end
.m
#implementation FriendButton
//this is called from the interface builder
-(id) initWithCoder:(NSCoder *)aDecoder {
self = [super initWithCoder:(NSCoder *)aDecoder];
NSLog(#"init called");
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:#selector(longPress:)];
[self addGestureRecognizer:longPress];
return self;
}
-(void)longPress:(id)sender {
NSLog(#"long press");
[self.delegate buttonIsLongPressed:self];
}
#end
My buttons are set up in the interface builder, they are contained in a UITableView cell. In my UITableViewController I have :
-(void)buttonIsLongPressed:(FriendButton *)button {
NSLog(#"Delegate method!");
}
and it controller conforms to protocol. The long press gesture works but the delegate method is not being called. I'm not sure why it's not working. Is it because I have to set each buttons delegate to the UITableViewController? If so how would I do that? The buttons are set up in the interface builder.

Answer 1

Define your UIButton property this way
#interface FriendButton : UIButton
#property (nonatomic, weak) IBOutlet id<LongPressedButtonDelegate > delegate;
#end
Then go to Interface Builder and right click on UIButton and you will see delegate link this delegate to UITableViewController. It should work

Answer 2

In your cellForRowAtIndexPath implementation in your UITableViewController you will need to do something like:
cell.button.delegate = self;
Edit: This is if you want to do it programmatically. Refer to the answers around IBOutlets if you want to do it in your storyboard.