Allowing interaction with a UIView under another UIView

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You should create a UIView subclass for your top view and override the following method:

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event {
    // UIView will be "transparent" for touch events if we return NO
    return (point.y < MIDDLE_Y1 || point.y > MIDDLE_Y2);
}

You may also look at the hitTest:event: method.

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