import UIKit
class ViewController: UIViewController {
@IBOutlet weak var textField: UITextField!
private var substrateView = UIView()
private var substrateLabel = UILabel()
private var constraint = NSLayoutConstraint()
@IBAction func someAction(_ sender: Any) {
substrateView.isHidden = false
UIView.animate(withDuration: 0.3) { [unowned self] in
self.constraint.isActive = false
self.constraint = self.substrateView.heightAnchor.constraint(equalToConstant: 60)
self.constraint.isActive = true
self.view.layoutIfNeeded()
}
}
override func viewDidLoad() {
super.viewDidLoad()
textField.layer.borderWidth = 3
textField.layer.borderColor = UIColor(red: 233/255, green: 128/255, blue: 129/255, alpha: 1).cgColor
textField.layer.cornerRadius = 8
substrateView.backgroundColor = UIColor(red: 233/255, green: 128/255, blue: 129/255, alpha: 1)
substrateView.layer.cornerRadius = 8
substrateLabel.text = "Login is not valid"
substrateLabel.textAlignment = .center
substrateLabel.textColor = UIColor.white
substrateLabel.backgroundColor = UIColor.clear
substrateView.addSubview(substrateLabel)
substrateLabel.translatesAutoresizingMaskIntoConstraints = false
substrateLabel.frame = CGRect.zero
substrateLabel.sizeToFit()
substrateLabel.bottomAnchor.constraint(equalTo: substrateView.bottomAnchor).isActive = true
substrateLabel.centerXAnchor.constraint(equalTo: substrateView.centerXAnchor).isActive = true
view.addSubview(substrateView)
substrateView.translatesAutoresizingMaskIntoConstraints = false
substrateView.topAnchor.constraint(equalTo: textField.topAnchor).isActive = true
substrateView.leftAnchor.constraint(equalTo: textField.leftAnchor).isActive = true
substrateView.rightAnchor.constraint(equalTo: textField.rightAnchor).isActive = true
substrateView.widthAnchor.constraint(equalTo:textField.widthAnchor).isActive = true
constraint = substrateView.heightAnchor.constraint(equalTo: textField.heightAnchor)
constraint.isActive = true
textField.layer.zPosition = 1
substrateView.isHidden = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
UIView.layer.shadowPath.import UIKit
@IBDesignable
class ViewController: UIViewController {
@IBOutlet weak var textField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
textField.layer.shadowColor = UIColor.purple.cgColor
textField.layer.cornerRadius = 8
textField.layer.masksToBounds = false
textField.layer.shadowOffset = CGSize.zero
textField.layer.shadowRadius = 3.0
textField.layer.shadowOpacity = 0.7
let path = UIBezierPath()
path.move(to: CGPoint(x: 0.0, y: 0.0))
path.addLine(to: CGPoint(x: textField.bounds.size.width/2, y: textField.bounds.size.height/2))
path.addLine(to: CGPoint(x: textField.bounds.maxX, y: 0.0))
path.addLine(to: CGPoint(x: textField.bounds.maxX, y: textField.bounds.maxY))
path.addLine(to: CGPoint(x: 0.0, y: textField.bounds.maxY))
path.close()
textField.layer.shadowPath = path.cgPath
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Int. Связанно это с Unicode скалярами. Нужно делать как-то так:let greeting = "Guten Tag!"
greeting[greeting.startIndex]
// G
greeting[greeting.index(before: greeting.endIndex)]
// !
greeting[greeting.index(after: greeting.startIndex)]
// u
let index = greeting.index(greeting.startIndex, offsetBy: 7)
greeting[index]
// aThere will not be any difference between loading web view from loadRequest vs loadHTMLString method, shouldStartLoadWithRequest method will be called in both cases. You can override your headers there and add header as per your requirements.
import Foundation
// Дополним String для простоты работы с NSRegularExpression
extension String {
// Вычислимое св-во, которое возвращает NSRange строки String
var toNSRange: NSRange { return NSMakeRange(0, self.utf16.count) }
// Метод возвращающий String по заданному NSRange
func substringFromNSRange(with nsrange: NSRange) -> String? {
guard let range = Range(nsrange) else { return nil }
let start = String.UTF16Index(encodedOffset: range.lowerBound)
let end = String.UTF16Index(encodedOffset: range.upperBound)
return String(self.utf16[start..<end])
}
}
var htmlContext = "products_and_categories(123123)]}"
let regExp = try? NSRegularExpression(pattern: "products_and_categories(.*?)\\]\\}")
let matches = regExp?.matches(in: htmlContext, range: htmlContext.toNSRange)
for match in matches! {
print(htmlContext.substringFromNSRange(with: match.range)!)
}