버튼을 클릭하면 이미지 팝업이 닫히지 않습니다.

Question

이렇게하면 오른쪽 상단 모서리에 이미지가 사라지는 "X"버튼이 약간 투명한 이미지가 나타납니다. 어떤 이유로 그것은 작동하지 않습니다! 이미지를 없애는 방법에 대한 아이디어가 있습니까? 버튼 어쩌면 내가 제대로 선택을 작성하지 않은

확인 ...

#define OVERLAY_TAG 997 
-(void)showTutorial 
{ 
    UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow]; 
    UIView *overlay = [[UIView alloc] initWithFrame:[UIScreen mainScreen].bounds]; 
    overlay.backgroundColor = [UIColor clearColor]; 
    overlay.userInteractionEnabled = YES; 
    [keyWindow addSubview:overlay]; 
    UITapGestureRecognizer * tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self 
                        action:@selector(dismissTutorial)]; 
    CGFloat border = 10; 
    CGRect frame = overlay.bounds; 

    // 20 is the status bar height (sorry for using the number) 
    frame = CGRectMake(border, border + 20, frame.size.width - border * 2, frame.size.height - border * 2 - 20); 

    // the black view in the example is probably a scroll view 
    UIView *blackView = [[UIView alloc] initWithFrame:frame]; 
    blackView.backgroundColor = [UIColor blackColor]; 
    blackView.alpha = 0.7; 
    [overlay addSubview:blackView]; 

    // add all the subviews for your tutorial 
    /*UIImage* image = [UIImage imageNamed:@"slide_image_3.png"]; 
    UIImageView* info = [[UIImageView alloc] initWithImage:image]; 
    info.frame = CGRectMake(0, 0, 200, 150); 
    [blackView addSubview:info];*/ 

    UIImage* image4 = [UIImage imageNamed:@"close_img.png"]; 
    dismissTut = [[UIButton alloc] initWithFrame:CGRectMake(250, 18, 26, 26)]; 
    [dismissTut setBackgroundImage:image4 forState:UIControlStateNormal]; 
    [dismissTut addTarget:self action:@selector(dismissTutorial) 
     forControlEvents:UIControlEventTouchUpInside]; 
    [dismissTut setShowsTouchWhenHighlighted:YES]; 

    [blackView addSubview:dismissTut]; 

    // make it appear with an animation 
    [UIView animateWithDuration:0.3 
        animations:^{blackView.alpha = 0.6;} 
        completion:^(BOOL finished){[overlay addGestureRecognizer:tapRecognizer];}]; 
} 

-(void)dismissTutorial 
{ 
    UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow]; 
    UIView *overlay = [keyWindow viewWithTag:OVERLAY_TAG]; 
    [UIView animateWithDuration:0.3 
        animations:^{ 
         overlay.alpha = 0.0; 
        } 
        completion:^(BOOL finished){ 
         [overlay removeFromSuperview]; 
        }]; 
} 

Answer 1

보기에 태그를 추가 overlay.tag = OVERLAY_TAG;

-(void)showTutorial 
{ 
    UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow]; 
    UIView *overlay = [[UIView alloc] initWithFrame:[UIScreen mainScreen].bounds]; 
    overlay.tag = OVERLAY_TAG; 
..... 
}