如何通过滑动UITableViewCell

Question

来揭示隐藏的文本我试图在用户从左向右滑动单元格时显示的UITableView中单元格的左侧放置日期字段。释放时，细胞应该弹回原位，隐藏日期字段。有谁知道如何做到这一点？它是否在

func tableView(_ tableView: UITableView, editActionsForRowAt: IndexPath) -> [UITableViewRowAction]? { 

或以某种方式定义在自定义单元格内？

Answer 1

我不会在发布时使用编辑委托。

将单元格内容放入UIView的UIScrollView中，然后在您希望显示的UIScrollView后面设置信息。

然后在滚动delegate,scrollViewDidEndDragging上，将contentOffset设置为0动画。

编辑：潘手势例如

如果你想为最简单的途径，建立了customContentView这是你的细胞大小的电池，泛姿态加入到这一点，那么设置和按钮，你想要的，我的例子下面我有一个按钮，每边。

注：这是SWIFT 2，但应该很容易翻译，我做了这个一个longgg时间前，当SWIFT 2发布之后，它可能与重构

var savedX = 0 as CGFloat 
var buttonWidth = 60 as CGFloat 
var open = false 

func panGestureHandler(gesture: UIPanGestureRecognizer) { 

    if gesture.state == .Changed { 
     let translation = gesture.translationInView(tagView) 

     let difference = -translation.x 

     if difference > 0 && !allowScrollRight { 
      return 
     } 

     let newConstant = savedX + difference 

     tagViewCenterXConstraint.constant = newConstant 

     let alpha = abs(tagViewCenterXConstraint.constant)/buttonWidth 

     deleteButton.alpha = min(alpha, 1) 
     followButton.alpha = min(alpha, 1) 

     if let action = swipe { 
      action(self) 
     } 
    } 

    if gesture.state == .Ended { 
     let translation = gesture.translationInView(self) 

     let trans = fabs(translation.x) 

     open = !open && trans > buttonWidth 

     if open { 
      if(translation.x > 0){ 
       resetRight(true) 
      } else { 
       if allowScrollRight { 
        resetLeft(true) 
       } 
      } 
     } else { 
      resetView(true){ 

      } 
     } 
    } 
} 

func resetLeft (animated : Bool) { 
     tagViewCenterXConstraint.constant = self.buttonWidth 
     savedX = self.buttonWidth 


    if animated { 
     UIView.animateWithDuration(0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 0.7, options: [UIViewAnimationOptions.CurveEaseIn, UIViewAnimationOptions.BeginFromCurrentState], animations: {() -> Void in 
      self.tagView.layoutIfNeeded() 
      self.leftView.layoutIfNeeded() 
      self.rightView.layoutIfNeeded() 

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

func resetRight (animated : Bool) { 
    tagViewCenterXConstraint.constant = -self.buttonWidth 
    savedX = -self.buttonWidth 

    if animated { 
     UIView.animateWithDuration(0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 0.7, options: [UIViewAnimationOptions.CurveEaseIn, UIViewAnimationOptions.BeginFromCurrentState], animations: {() -> Void in 
      self.tagView.layoutIfNeeded() 
      self.leftView.layoutIfNeeded() 
      self.rightView.layoutIfNeeded() 

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

func resetView (animated : Bool, completion:() -> Void) { 
    tagViewCenterXConstraint.constant = 0 
    savedX = 0 
    open = false 

    if animated { 
     UIView.animateWithDuration(0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 0.7, options: [UIViewAnimationOptions.CurveEaseIn, UIViewAnimationOptions.BeginFromCurrentState], animations: {() -> Void in 
      self.tagView.layoutIfNeeded() 
      self.leftView.layoutIfNeeded() 
      self.rightView.layoutIfNeeded() 

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