Question

I’ve created a subclass of UIScrollView to implement a one of my custom controls, at this point everything is working great.

However what I’d like to be able to call a methods whenever a Touch Up Inside event is detected (just like interface builder) does anybody know how I could do this?

Answer 1

Because UIScrollView does not inherit from UIControl, this is not possible. You can, however, relay the scroll view’s touch events by implementing the UIResponder methods in your custom UIScrollView class:

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event 
{   
    if (!self.dragging)
    {
        [self.nextResponder touchesEnded: touches withEvent:event]; 
    }       

    [super touchesEnded: touches withEvent: event];
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    if (!self.dragging)
    {
        [self.nextResponder touchesBegan: touches withEvent:event]; 
    }       

    [super touchesBegan: touches withEvent: event];
}