UIButton is not receiving actions behind UIScrollView

Question

I put UIButton inside UITableViewCell in UITableView that is behind UIScrollView. I subclassed UIScrollView to forward touches to UITableView.

So method from UITableViewDelegate didSelectRow is calling properly. The problem is that UIButton inside table cell is not receiving TouchUpInside actions.

How can I solve this problem without deleting ScrollView over TableView?

EDIT:

I resolved this issue by detecting which view will receive touch. Here's the code:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    UIView *hitView = [self hitTest:[(UITouch*)[[touches allObjects] objectAtIndex:0] locationInView:self] withEvent:event];
    if ([hitView isKindOfClass:[UIButton class]]) {
        [(UIButton*)hitView sendActionsForControlEvents:UIControlEventTouchUpInside];
    }
    [super touchesBegan:touches withEvent:event];
}

Answer 1

If you want to enable actions for bouth objects - UIScrollView and UIButton you should to implement custom hit test mechanism for ScrollView.

In your UIScrollView subclass override - (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event method to make views behind ScrollView available for getting events.

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
    return __touchesEnabled;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    _touchesEnabled = NO;
    UIWindow *window = [UIApplication sharedApplication].delegate.window;
    for(UITouch *touch in touches) {
       CGPoint point = [touch locationInView:self];
       point = [window convertPoint:point fromView:self];
       UIView *view = [window hitTest:point withEvent:event];
       [view touchesBegan:touches withEvent:event];
    }  
    _touchesEnabled = YES;
}

It works for me

Answer 2

Since you have added your scroll view over the UIButton, all the touch actions will not be passed to the button.

    [yourScrollView setUserInteractionEnabled:NO];

This may solve your problem.