Tableview委托不返回值

Question

我有 UIButton 取消 tableviewcontroller 的问题，当我做测试时，我点击取消按钮来调用动作，他没有给代表打电话，没有工作，遵守代码。

StalkViewController

#import <UIKit/UIKit.h>
#import "FMDBDataAccess.h"
#import "EditStalkViewController.h"
#import "NewStalkViewController.h"

@interface StalkViewController : UITableViewController<NewStalkViewControllerDelegate>

@property (nonatomic,strong) NSMutableArray *stalks;
-(void)populateStalk;

@end

StalkViewController.m

-(void) addNewStalkViewControllerDidCancel:(NewStalkViewController *)controller
{
    [self dismissViewControllerAnimated:YES completion:nil];
}

-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if([segue.identifier isEqualToString:@"addStalk"])
    {
        UINavigationController *navigationController = segue.destinationViewController;
        NewStalkViewController *addNewStalkViewController = (NewStalkViewController *)[[navigationController viewControllers] objectAtIndex:0];
        addNewStalkViewController.delegate = self;

    }
}

NewStalkViewController.h

#import "Stalk.h"
#import "Utility.h"

@class NewStalkViewController;

@protocol NewStalkViewControllerDelegate<NSObject>


-(void) addNewStalkViewControllerDidCancel:(NewStalkViewController *)controller;

@end

@interface NewStalkViewController : UITableViewController<FBFriendPickerDelegate, UITextFieldDelegate>
{
}

@property (nonatomic,weak) id<NewStalkViewControllerDelegate> delegate;

- (IBAction)cancel:(id)sender;

@end

NewStalkViewController.m

#import "NewStalkViewController.h"

@implementation NewStalkViewController

@synthesize delegate;

-(IBAction)cancel:(id)sender
{
    [self.delegate addNewStalkViewControllerDidCancel:self];
}

@end

帮助我!!