ViewController.swift
import UIKit
class ViewController: UIViewController {
var xibView: UIView?
override func viewDidLoad() {
super.viewDidLoad()
print(“usa”)
xibView = ViewTemp.instanceFromNibForViewTemp()
xibView?.frame = CGRect(x: 0, y: 0, width: 300, height: 500)
xibView?.autoresizingMask = [.flexibleWidth, .flexibleHeight]
self.view.addSubview(xibView!)
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func buttonActionRemoveView(_ sender: AnyObject) {
self.xibView?.removeFromSuperview()
}
}
ViewTemp.swift
import UIKit
class ViewTemp: UIView {
/*
// Only override draw() if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func draw(_ rect: CGRect) {
// Drawing code
}
*/
class func instanceFromNibForViewTemp() -> UIView {
return UINib(nibName: “ViewTemp”, bundle: nil).instantiate(withOwner: nil, options: nil)[0] as! UIView
}
override init(frame: CGRect) {
super.init(frame: frame)
nibSetup()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
nibSetup()
}
private func nibSetup() {
let myView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
myView.backgroundColor = UIColor.blue
self.addSubview(myView)
}
@IBAction func buttonActionClickHere(_ sender: AnyObject) {
print(“usa”)
}
}
NibLoadingView.swift
import UIKit
// Usage: Subclass your UIView from NibLoadView to automatically load a xib with the same name as your class
protocol NibDefinable {
var nibName: String { get }
}
@IBDesignable
class NibLoadingView: UIView, NibDefinable {
@IBOutlet weak var view: UIView!
var nibName: String {
return String(describing: type(of: self))
}
override init(frame: CGRect) {
super.init(frame: frame)
nibSetup()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
nibSetup()
}
private func nibSetup() {
backgroundColor = UIColor.clear
view = loadViewFromNib()
view.frame = bounds
view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.translatesAutoresizingMaskIntoConstraints = true
addSubview(view)
}
private func loadViewFromNib() -> UIView {
let bundle = Bundle(for: type(of: self))
let nib = UINib(nibName: nibName, bundle: bundle)
let nibView = nib.instantiate(withOwner: self, options: nil).first as! UIView
return nibView
}
}
iOS Development Swift 