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我在表格视图单元格中使用带有图像的滚动视图但是有两个问题：1-有一个额外的页面不是我的图像数量和2：图像没有填满屏幕并且每个图像之间都有空白这是我看到的图像

这是我的带有滚动视图代码的表格视图单元格

class scrollViewCell: UITableViewCell , UIScrollViewDelegate {

@IBOutlet weak var pageControl: UIPageControl!
@IBOutlet weak var scrollView: UIScrollView!

var contentWidth : CGFloat = 0.0


override func awakeFromNib() {
    super.awakeFromNib()        

    scrollView.delegate = self
    for image in 0...2 {
        let imageToDisplay = UIImage(named : "1")
        let imageView = UIImageView(image : imageToDisplay)

        let xCoordinate = self.contentView.frame.midX + self.contentView.frame.width * CGFloat(image)
        contentWidth += self.contentView.frame.width
        scrollView.addSubview(imageView)

        imageView.frame = CGRect(x: xCoordinate - 50 , y: 0 , width: self.contentView.frame.width, height: 100)

        imageView.autoresizingMask = [.flexibleWidth, .flexibleHeight, .flexibleBottomMargin, .flexibleRightMargin, .flexibleLeftMargin, .flexibleTopMargin]
        imageView.contentMode = .scaleAspectFit // OR .scaleAspectFill
        imageView.clipsToBounds = true


    }

    scrollView.contentSize = CGSize(width: contentWidth, height: self.contentView.frame.height)


}


func scrollViewDidScroll(_ scrollView: UIScrollView) {
    pageControl.currentPage = Int(scrollView.contentOffset.x / CGFloat(414))
}


override func setSelected(_ selected: Bool, animated: Bool) {
    super.setSelected(selected, animated: animated)

    // Configure the view for the selected state
}
}
4

2 回答 2

1

你能试试这个

func addscrollV()
{
     for image in 0...2 {
    let imageToDisplay = UIImage(named : "1")
    let imageView = UIImageView(image : imageToDisplay)

    let xCoordinate = self.contentView.frame.width * CGFloat(image)
    contentWidth += self.contentView.frame.width
    scrollView.addSubview(imageView)

    imageView.frame = CGRect(x: xCoordinate , y: 0 , width: self.contentView.frame.width, height: self.contentView.frame.height)

    imageView.contentMode = .scaleAspectFill
    imageView.clipsToBounds = true
   }

   scrollView.contentSize = CGSize(width: contentWidth, height: self.contentView.frame.height)

}

func layoutSubviews()
{
  super.layoutSubviews()
   if(Once)
   {
     Once = false
     self.addscrollV()
  }
}
于 2018-03-17T12:01:22.277 回答
0

问题在于您的 xCoordinate 计算，contentView 框架在 awakeFromNib 中不可用。

您不应该用户super.awakeFromNib计算帧。创建一个名为的方法

func configureUI(){ //Update your UI here }

cellForRowAtIndex:从UITableViewCell 的委托方法调用此方法

于 2018-03-17T11:53:52.753 回答