Question

There is a UIView named viewA, viewA has a UITapGestureRecognizer, I can’t modify the recognizer’s target code.
And viewA has many subviews. For some specific subviews, I want they don’t deliver tap event to viewA when I touch them (for other subviews, they should deliver tap event to viewA). What should I do?

Answer 1

Set viewA as delegate of recognizer. then use delegate method:

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

check if touch is in unwanted subviews:

for(UIView *v in unwantedSubviewsArray){
    CGPoint touchLocation = [touch locationInView:v];
    if (CGRectContainsPoint(v.frame, touchLocation)){
        return NO;
    }
}
return YES;