UIView.animateWithDuration in Swift 2.0?

Question

Before explain my problem, it is important to say that I already implemented the suggestion made in this question and I think my doubts about this animateWithDuration method are quite different, despite both questions having a very similar title.

So, I am a Swift newbie and I am doing some small projects in Swift, based on previous Objective C demos that I did before.

This is my Objective C code:

- (void)moveSideBarToXposition: (int) iXposition{

    [UIView animateWithDuration:0.5f
                          delay:0.1
                        options: UIViewAnimationOptionTransitionNone
                     animations:^{  self.mainView.frame = CGRectMake(iXposition, 20, self.mainView.frame.size.width, self.mainView.frame.size.height); }

                     completion:^(BOOL finished){
                         if (self.isSidebarHidden==YES) {
                             self.isSidebarHidden = NO;
                         }

                         else{
                             self.isSidebarHidden = YES;
                         }
                     }];
}

And this is my Swift version:

func moveSideBarToXposition(iXposition: Float) {

    UIView.animateWithDuration(0.5, delay: 1.0, options: UIViewAnimationTransition.None, animations: { () -> Void in

        self.contentView.frame = CGRectMake(iXposition, 20, self.contentView.frame.size.width, self.contentView.frame.size.height)

    }, completion: { (finished: Bool) -> Void in

        if isMenuHidden == true {
            isMenuHidden = false
        } else {
            isMenuHidden = true
        }
    })
}

And I get this error.

Cannot invoke 'animateWithDuration' with an argument list of type '(Double, delay: Double, options: UIViewAnimationTransition, animations: () -> Void, completion: (Bool) -> Void)'

I read the documentation but actually I am not sure what the problem is.

Btw, i am working on Xcode 7 and Swift 2.0

Sami Sami · Accepted Answer · 2015-07-06T20:59:52

You are passing enum of type UIViewAnimationTransition to an argument which requires type UIViewAnimationOptions (options argument)

Here is the correct syntax with the correct enum value:

func moveSideBarToXposition(iXposition: Float) {
    let convertedXposition = CGFloat(iXposition)
    UIView.animateWithDuration(0.5, delay: 1.0, options: UIViewAnimationOptions.TransitionNone, animations: { () -> Void in

        self.contentView.frame = CGRectMake(convertedXposition, 20, self.contentView.frame.size.width, self.contentView.frame.size.height)

        }, completion: { (finished: Bool) -> Void in

            // you can do this in a shorter, more concise way by setting the value to its opposite, NOT value
            isMenuHidden = !isMenuHidden
    })
}

UIView.animateWithDuration in Swift 2.0?

1 Answers