UIView addSubview auto layout not working

Question

I created a UIView programatically and add NSLayoutConstraint to it and it works and then add it as a subView of view controller\'s view. Right now I need to remove this vie

Answer 1

When you create constraints assign it to variables

@property (nonatomic, strong)NSLayoutConstraint *viewConstraintTop;
self.viewConstraintTop = [Your Constraint];

When you want to remove it from the superview remove the constraints

[self.viewConstraintTop autoRemove];

Remove your view and again while adding assign the constraint as

self.viewConstraintTop = [Your Constraint];