我无法遮盖UITextView
内的UIImageView
上的阴影。
我尝试了许多可能的方法。约束是,由于某些原因无法访问layoutMethods
,因此我无法覆盖它们。因此,为了进行演示,我将相同的代码放入viewDidLoad中进行调试,但无法弄清楚。请在这里解释我做错了。
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .black
let imageView = UIImageView()
imageView.image = #imageLiteral(resourceName: "guitar")
imageView.layer.cornerRadius = 15
imageView.clipsToBounds = true
view.addSubview(imageView)
imageView.translatesAutoresizingMaskIntoConstraints = false
imageView.heightAnchor.constraint(equalToConstant: 240).isActive = true
imageView.widthAnchor.constraint(equalToConstant: 240).isActive = true
imageView.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
imageView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
let textView = UITextView(frame: CGRect.zero)
textView.text = "This is a Sample text. This is a Sample text. This is a Sample text. This is a Sample text. This is a Sample text. "
textView.isEditable = false
textView.textAlignment = .left
textView.isSelectable = false
textView.backgroundColor = .systemBlue
textView.textColor = UIColor.white
textView.sizeToFit()
textView.isScrollEnabled = false
textView.textContainerInset = UIEdgeInsets(top: 6, left: 7, bottom: 6, right: 7)
textView.clipsToBounds = false
textView.layer.shadowColor = UIColor.gray.cgColor
textView.layer.shadowRadius = 10
textView.layer.opacity = 1
textView.layer.shadowOffset = .zero
textView.layer.shadowPath = UIBezierPath(rect: textView.bounds).cgPath
textView.layer.masksToBounds = false
imageView.addSubview(textView)
textView.translatesAutoresizingMaskIntoConstraints = false
textView.leftAnchor.constraint(equalTo: imageView.leftAnchor).isActive = true
textView.bottomAnchor.constraint(equalTo: imageView.bottomAnchor).isActive = true
textView.rightAnchor.constraint(equalTo: imageView.rightAnchor).isActive = true
}