更改情节提要中已经存在的UIView的宽度？ 迅速

Question

I already have created a UIView in the storyboard and connected it as an outlet, with the name progressView In Swift, I want to be able to change the width of this view in a certain function, however, so far I have been unable to.

I would really appreciate any help.

Answer 1

I've just write an example , if your project is autolayout , you need to define width constraint for progressView , then you need to make an outlet connection from your constraint and then change this property at method

@property (weak, nonatomic) IBOutlet NSLayoutConstraint *ViewWidth;

in method:

 self.ViewWidth.constant =number;