Question

How to hide the navigationBar on double tap and show on single tap on UIView without using the navigation controller? And also the animations when hiding and showing?

Thanks in advance.

Answer 1

UITapGestureRecognizer* tapGesture =[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(your_selector)];
tapGesture.numberOfTapsRequired = 2;
[self.view addGestureRecognizer:tapGesture];
[tapGesture release];

In your selector:

-(void)your_selector{
    [UIView animateWithDuration:0.5
                 animations:^{
                     bar.frame = CGRectOffset(bar.frame, 0, bar.bounds.size.height*bar.frame.origin.y<0?-1:1);
                 }];
}

In this implementation you have only double-touch event that will change status of bar to reverse.
Unfortunately there are no easy implementation for single and double touché gestures at one moment. Much more human behavior and easy for you – work only with event of double touch.

XCode project – example