Ios 如何将Facebook闪影添加到图像和视图中？

我正在试用Facebook shimmering库，我能够使用此代码将shimmering添加到文本标签

    self.shimmeringView = FBShimmeringView(frame: CGRectMake(0, 0, 200, (self.navigationController?.navigationBar.bounds.height)!))
    self.shimmeringView.contentView = navLabel
    self.navigationItem.titleView = self.shimmeringView
    self.shimmeringView.shimmering = true

---

但是，我无法使图像或UIImage闪烁。这可能吗？谢谢

您为使

UIImageView

闪烁所做的操作是错误的

您没有将微光作为子视图添加到视图中

您没有将

UIImageView

设置为微光的

contentView

使用以下内容更新代码：

@IBOutlet var imageView: UIImageView!

var shimmer: FBShimmeringView!

override func viewDidLoad() {
    shimmer = FBShimmeringView(frame: self.imageView.frame)
    shimmer.contentView = imageView
    self.view.addSubview(shimmer)
    shimmer.isShimmering = true
}

---

您为使

UIImageView

闪烁所做的操作是错误的

您没有将微光作为子视图添加到视图中

您没有将

UIImageView

设置为微光的

contentView

使用以下内容更新代码：

@IBOutlet var imageView: UIImageView!

var shimmer: FBShimmeringView!

override func viewDidLoad() {
    shimmer = FBShimmeringView(frame: self.imageView.frame)
    shimmer.contentView = imageView
    self.view.addSubview(shimmer)
    shimmer.isShimmering = true
}

---

我对@Shubhank answer有一个问题，尽管大部分答案都很好

使用viewDidLoad而不是viewDidLayoutSubviews作为微光帧并没有得到我想要的结果

所以我更新了代码，一切正常

@IBOutlet var imageView: UIImageView!

var shimmer: FBShimmeringView!

override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()

        shimmer = FBShimmeringView(frame: self.imageView.frame)
        shimmer.contentView = imageView
        self.view.addSubView(shimmer)
        shimmer.shimmering = true
}

---

我对@Shubhank answer有一个问题，尽管大部分答案都很好

使用viewDidLoad而不是viewDidLayoutSubviews作为微光帧并没有得到我想要的结果

所以我更新了代码，一切正常

@IBOutlet var imageView: UIImageView!

var shimmer: FBShimmeringView!

override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()

        shimmer = FBShimmeringView(frame: self.imageView.frame)
        shimmer.contentView = imageView
        self.view.addSubView(shimmer)
        shimmer.shimmering = true
}

带微光的Swift 3（1.0.2）：

带微光的Swift 3（1.0.2）：

---

也可以使用约束，而无需每次在视图布局子视图时初始化“微光”视图：

let shimmer = FBShimmeringView(frame: .zero)
view.addSubview(shimmer)
shimmer.translatesAutoresizingMaskIntoConstraints = false
let leadingConstraint = NSLayoutConstraint(item: shimmer, attribute: .leading, relatedBy: .equal, toItem: navLabel, attribute: .leading, multiplier: 1, constant: 0)
let trailingConstraint = NSLayoutConstraint(item: shimmer, attribute: .trailing, relatedBy: .equal, toItem: navLabel, attribute: .trailing, multiplier: 1, constant: 0)
let topConstraint = NSLayoutConstraint(item: shimmer, attribute: .top, relatedBy: .equal, toItem: navLabel, attribute: .top, multiplier: 1, constant: 0)
let bottomConstraint = NSLayoutConstraint(item: shimmer, attribute: .bottom, relatedBy: .equal, toItem: navLabel, attribute: .bottom, multiplier: 1, constant: 0)
view.addConstraints([leadingConstraint, trailingConstraint, topConstraint, bottomConstraint])

---

也可以使用约束，而无需每次在视图布局子视图时初始化“微光”视图：

let shimmer = FBShimmeringView(frame: .zero)
view.addSubview(shimmer)
shimmer.translatesAutoresizingMaskIntoConstraints = false
let leadingConstraint = NSLayoutConstraint(item: shimmer, attribute: .leading, relatedBy: .equal, toItem: navLabel, attribute: .leading, multiplier: 1, constant: 0)
let trailingConstraint = NSLayoutConstraint(item: shimmer, attribute: .trailing, relatedBy: .equal, toItem: navLabel, attribute: .trailing, multiplier: 1, constant: 0)
let topConstraint = NSLayoutConstraint(item: shimmer, attribute: .top, relatedBy: .equal, toItem: navLabel, attribute: .top, multiplier: 1, constant: 0)
let bottomConstraint = NSLayoutConstraint(item: shimmer, attribute: .bottom, relatedBy: .equal, toItem: navLabel, attribute: .bottom, multiplier: 1, constant: 0)
view.addConstraints([leadingConstraint, trailingConstraint, topConstraint, bottomConstraint])

---

请添加你为闪屏UIImageView所做的代码。我为闪屏ImageView@IBOutlet var ImageView:UIImageView尝试了类似的操作！var shimmer:FBShimmeringView！override func viewDidLoad（）{shimmer=FBShimmeringView（frame:self.imageView.frame）shimmer.shimmering=true}@Shubhank我已经添加了下面的代码。请添加为填充UIImageView所做的代码。我为填充imageView@IBOutlet var imageView:UIImageView尝试了类似的方法！var shimmer:FBShimmeringView！override func viewDidLoad（）{shimmer=fbsimmeringview（frame:self.imageView.frame）shimmer.shimming=true}@Shubhank我添加了下面的代码。