问题
When the parent view has userInteractionEnabled=NO, its subviews will not accept touch events even if their userInteractionEnabled property is set to YES.
Is there any way to still get touch events in subviews?
回答1:
To get a view to let touches pass-through but give its subviews handle touches, let userInteractionEnabled on that view to YES and, instead, use this snippet:
-(id)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
id hitView = [super hitTest:point withEvent:event];
if (hitView == self) return nil;
else return hitView;
}
Source: http://cocoaheads.tumblr.com/post/2130871776/ignore-touches-to-uiview-subclass-but-not-to-its
回答2:
Setting the parent view's userInteractionEnabled property to NO also implicitly sets its subviews userInteractionEnabled properties to NO as well. I don't know of a way to get touch events to the subview using the approach that you have described, but perhaps you could create a view that simply overlays the views that you want users to interact with, but is not the parent of those views.
回答3:
Swift solution- You need to have a custom view class for the parent view and add the following code to it. Please keep the parent view's user-interactions enabled.
I hope the following code will help you.
class MyCustomParentView: UIView {
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
let hitView = super.hitTest(point, with: event)
if hitView == self {
return nil
} else {
return hitView
}
}
}
回答4:
A work around would be to disable the userinteraction of buttons etc to nil rather than disabling the user interaction of the whole parent view
来源：https://stackoverflow.com/questions/4661589/how-to-get-touches-when-parent-view-has-userinteractionenabled-set-to-no-in-ios