Question

我有这个功能：

Dim lastrow As Long
Dim i As Integer

lastrow = ActiveSheet.Cells(Rows.Count, "A").End(xlUp).Row + 1

i = 4
calc = "=SUM(SUMIF($K$3:$K$19,N3,$L$3:$L$19),"
Do Until i = lastrow
    calc = calc & "SUMIF($K$3:$K$19,N" & i & ",$L$3:$L$19),"
    i = i + 1
Loop

ActiveSheet.Range("N" & lastrow + 1 & ":BI" & lastrow + 1).Value = calc & ")"

我有一个显示和隐藏视图的功能。我想添加一个动画来显示/隐藏此视图。怎么做？动画的方向是从上到下。

有谁知道怎么做？

Answer 1

确保设置filterView.clipsToBounds = true。

func showwAndHideFilterMenu(category : Int) {

        if showFilterMenu == false {

            var filterFrame = filterView.frame
            let actualHeight = filterFrame.size.height

            //initially set height to zero and in animation block we need to set its actual height.
            filterFrame.size.height = 0
            filterView.frame = frame

            UIView.animate(withDuration: 0.6, delay: 0, options: .curveEaseInOut, animations: {

                self.filterView.isHidden = false
                self.showFilterMenu = true

                //setting the actual height with animation
                filterFrame.size.height = actualHeight
                filterView.frame = filterFrame

            }) { (isCompleted) in

            }

        } else {

            var filterFrame = filterView.frame

            UIView.animate(withDuration: 0.6, delay: 0, options: .curveEaseInOut, animations: {

                self.filterView.isHidden = true
                self.showFilterMenu = false

                //set the height of the filter view to 0
                filterView.frame = filterFrame
                filterFrame.size.height = 0
                filterView.frame = frame

            }) { (isCompleted) in

            }
        }
    }

Answer 2

您需要操纵alpha属性，而不是UIView淡入淡出动画的isHidden属性。

尝试以下方法：

func showAndHideFilterMenu(category : Int) {
    if showFilterMenu == false {
        self.filterView.alpha = 0.0
        self.filterView.isHidden = false
        self.showFilterMenu = true

        UIView.animate(withDuration: 0.6, delay: 0, options: .curveEaseInOut, animations: {
            self.filterView.alpha = 1.0
        }) { (isCompleted) in
        }
    } else{
        UIView.animate(withDuration: 0.6, delay: 0, options: .curveEaseInOut, animations: {
            self.filterView.alpha = 0.0
        }) { (isCompleted) in
            self.filterView.isHidden = true
            self.self.showFilterMenu = false
        }
    }
}

Answer 3

尝试此操作会使您的视图从上到下滑动，然后隐藏该视图

//MARK: Slide View - Top To Bottom
func viewSlideInFromTopToBottom(view: UIView) -> Void {
    let transition:CATransition = CATransition()
    transition.duration = 0.5
    transition.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
    transition.type = CATransitionType.push
    transition.subtype = CATransitionSubtype.fromBottom
    view.layer.add(transition, forKey: kCATransition)
}

<强>用法

// Cancel Button
@IBAction func cancelButtonAction(_ sender: Any) {            
   self.viewSlideInFromTopToBottom(view: hideAndShowPickerView)
   hideAndShowPickerView.isHidden = true
}

Swift中的动画节目和隐藏视图

3 个答案: