[ios] 투명한 UIView 뒤의 버튼을 어떻게 클릭합니까?

컨테이너에 대한 사용자 지정보기를 만들고 pointInside : 메시지를 재정 의하여 포인트가 다음과 같이 적격 한 자식보기 내에 있지 않은 경우 false를 반환합니다.

빠른:

class PassThroughView: UIView {
    override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
        for subview in subviews {
            if !subview.isHidden && subview.isUserInteractionEnabled && subview.point(inside: convert(point, to: subview), with: event) {
                return true
            }
        }
        return false
    }
}

목표 C :

@interface PassthroughView : UIView
@end

@implementation PassthroughView
-(BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event {
    for (UIView *view in self.subviews) {
        if (!view.hidden && view.userInteractionEnabled && [view pointInside:[self convertPoint:point toView:view] withEvent:event])
            return YES;
    }
    return NO;
}
@end

이 뷰를 컨테이너로 사용하면 모든 자식이 터치를받을 수 있지만 뷰 자체는 이벤트에 투명합니다.

답변

myView.userInteractionEnabled = NO;

-(BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event

-(BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
{
    // Allow buttons to receive press events.  All other views will get ignored
    for( id foundView in self.subviews )
    {
        if( [foundView isKindOfClass:[UIButton class]] )
        {
            UIButton *foundButton = foundView;

            if( foundButton.isEnabled  &&  !foundButton.hidden &&  [foundButton pointInside:[self convertPoint:point toView:foundButton] withEvent:event] )
                return YES;
        }
    }
    return NO;
}

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event{
    UIView *view = [super hitTest:point withEvent:event];
    if (view == self) {
        return nil; //avoid delivering touch events to the container view (self)
    }
    else{
        return view; //the subviews will still receive touch events
    }
}