Swift 2.0中的UIView.animateWithDuration？

Question

在解释我的问题之前,重要的是要说我已经实现了这个问题中提出的建议,我认为我对这种animateWithDuration方法的怀疑是完全不同的,尽管两个问题的标题非常相似.

所以,我是一个Swift新手,我正在Swift做一些小项目,基于我以前做过的之前的Objective C演示.

这是我的Objective C代码:

- (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;
                         }
                     }];
}

这是我的Swift版本:

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
        }
    })
}

我得到了这个错误.

无法使用类型'的参数列表调用'animateWithDuration'(Double,delay:Double,options:UIViewAnimationTransition,animations :() - > Void,completion:(Bool) - > Void)'

我阅读了文档,但实际上我不确定问题是什么.

顺便说一句,我正在研究Xcode 7和Swift 2.0

Answer 1

您将类型的枚举传递UIViewAnimationTransition给需要类型UIViewAnimationOptions(options参数)的参数

以下是具有正确枚举值的正确语法:

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
    })
}