Xcode4.3 UIActionSheet导致错误消息

Question

这个应用程序在测试时运行的很好，但是在delegate:self旁边我得到了.

将'ViewController *const __strong‘发送到不兼容类型'id< UIActionSheetDelegate>’的参数

在这方面的任何帮助都是非常感谢的，因为我已经在这上面几天了！

我的视图控制器.

#import <UIKit/UIKit.h>
#import <Social/Social.h>

#import "Accounts/Accounts.h"
#import <MessageUI/MessageUI.h>


@interface ViewController : UIViewController<MFMailComposeViewControllerDelegate>

{
    UIAlertView *objresponseAlert;
}
@property (weak, nonatomic) IBOutlet UITextView *myTextView;

- (IBAction)emailButton:(id)sender;
@end

在我看来。我有.

- (IBAction)emailButton:(id)sender {    
    UIActionSheet *actionsheet = [[UIActionSheet alloc]
                                  initWithTitle:@"Title"
                                  delegate:self
                                  cancelButtonTitle:@"Cancel"
                                  destructiveButtonTitle:nil
                                  otherButtonTitles:@"Email", nil];
    [actionsheet showInView:self.view];
}

Answer 1

这是完美的！

// Make Class conform to UIActionSheet delegate
@interface ViewController : UIViewController<MFMailComposeViewControllerDelegate,UIActionSheetDelegate>