ViewControllerExtensions.swift
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//
// ViewControllerExtensions.swift
// WarplySDKFrameworkIOS
//
// Created by Manos Chorianopoulos on 5/5/22.
//
import UIKit
extension UIViewController {
func setBackButton(_ icon:String = "ic_back_3") {
// let uiscreen: CGRect = UIScreen.main.bounds
// let backButton = UIButton(type: UIButton.ButtonType.custom) as UIButton
// if (icon == "ic_close_2") {
// backButton.frame = CGRect(x: 0, y: 0, width: 18, height: 18)
// } else {
// backButton.frame = CGRect(x: 0, y: 0, width: 18, height: 18)
// }
// // backButton.frame = CGRect(x: 0, y: 0, width: uiscreen.height * 0.01, height: uiscreen.height * 0.01)
// // backButton.backgroundColor = .red
// backButton.imageView!.contentMode = .scaleAspectFit
// //backButton.setBackgroundImage(UIImage(named:Assets.Navigation.backButton), for: UIControlState())
// // backButton.setImage(UIImage(named: icon), for: .normal)
// backButton.setBackgroundImage(UIImage(named: icon), for: .normal)
// // backButton.imageEdgeInsets = UIEdgeInsets(top: 0, left: -20, bottom: 0, right: 0)
// backButton.addTarget(self, action: #selector(moveToBack(_:)), for: .touchUpInside)
// backButton.translatesAutoresizingMaskIntoConstraints = false
// // Add width, height constraints
// if (icon == "ic_close_2") {
// let widthContraints = NSLayoutConstraint(item: backButton, attribute: NSLayoutConstraint.Attribute.width, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 18)
// let heightContraints = NSLayoutConstraint(item: backButton, attribute: NSLayoutConstraint.Attribute.height, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 18)
// NSLayoutConstraint.activate([heightContraints,widthContraints])
// } else {
// let widthContraints = NSLayoutConstraint(item: backButton, attribute: NSLayoutConstraint.Attribute.width, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 18)
// let heightContraints = NSLayoutConstraint(item: backButton, attribute: NSLayoutConstraint.Attribute.height, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 18)
// NSLayoutConstraint.activate([heightContraints,widthContraints])
// }
// let leftBarButtonItem: UIBarButtonItem = UIBarButtonItem(customView: backButton)
// NSLayoutConstraint.activate([(leftBarButtonItem.customView!.widthAnchor.constraint(equalToConstant: 18)),(leftBarButtonItem.customView!.heightAnchor.constraint(equalToConstant: 18))])
// self.navigationItem.setLeftBarButton(leftBarButtonItem, animated: false)
self.navigationItem.setHidesBackButton(true, animated:false)
//your custom view for back image with custom size
let view = UIView(frame: CGRect(x: 0, y: 0, width: 40, height: 40))
let imageView = UIImageView(frame: CGRect(x: 10, y: 10, width: 18, height: 18))
if let imgBackArrow = UIImage(named: icon, in: MyEmptyClass.resourceBundle(), compatibleWith: nil) {
imageView.image = imgBackArrow
}
view.addSubview(imageView)
let backTap = UITapGestureRecognizer(target: self, action: #selector(moveToBack(_:)))
view.addGestureRecognizer(backTap)
let leftBarButtonItem = UIBarButtonItem(customView: view )
self.navigationItem.leftBarButtonItem = leftBarButtonItem
self.navigationItem.title = ""
// Add backgroundColor
if #available(iOS 15, *) {
let navigationBarAppearance = UINavigationBarAppearance()
navigationBarAppearance.configureWithDefaultBackground()
navigationBarAppearance.backgroundColor = .white
navigationItem.standardAppearance = navigationBarAppearance
navigationItem.compactAppearance = navigationBarAppearance
navigationItem.scrollEdgeAppearance = navigationBarAppearance
} else {
navigationController?.navigationBar.barTintColor = UIColor.white
navigationController?.navigationBar.tintColor = UIColor.white
// navigationController?.navigationBar.isTranslucent = false
}
// Remove navigationBar bottom border
// self.navigationController?.navigationBar.hideBottomHairline()
self.navigationController?.hideHairline()
self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for:.default)
self.navigationController?.navigationBar.shadowImage = UIImage()
self.navigationController?.navigationBar.layoutIfNeeded()
}
@objc func moveToBack(_ sender:UIButton){
self.navigationController?.popViewController(animated: true)
self.dismiss(animated: true, completion: {})
}
func addNavShadow() {
// Add shadow
self.navigationController?.navigationBar.layer.masksToBounds = false
self.navigationController?.navigationBar.layer.shadowColor = UIColor.lightGray.cgColor
self.navigationController?.navigationBar.layer.shadowOpacity = 0.8
self.navigationController?.navigationBar.layer.shadowOffset = CGSize(width: 0, height: 2.0)
self.navigationController?.navigationBar.layer.shadowRadius = 2
}
func setNavigationTitle(_ title: String, _ fontWeight: String? = "medium") {
let uiscreen: CGRect = UIScreen.main.bounds
let titleLabel = UILabel(frame: CGRect(x: 0, y: 0, width: uiscreen.width * 0.7, height: uiscreen.height * 0.03))
titleLabel.text = title
titleLabel.textColor = UIColor(red: 0.13, green: 0.13, blue: 0.13, alpha: 1.00)
// Fix width for ipad
if UIDevice.current.userInterfaceIdiom == .pad {
// iPad
if (fontWeight == "bold") {
titleLabel.font = UIFont(name: "BTCosmo-Bold", size: 21)
} else {
titleLabel.font = UIFont(name: "BTCosmo-Bold", size: 21)
}
} else {
// not iPad (iPhone, mac, tv, carPlay, unspecified)
if (fontWeight == "bold") {
titleLabel.font = UIFont(name: "BTCosmo-Bold", size: 18)
} else {
titleLabel.font = UIFont(name: "BTCosmo-Bold", size: 18)
}
}
titleLabel.adjustsFontSizeToFitWidth = true
titleLabel.textAlignment = .center
self.navigationItem.titleView = titleLabel
}
// pop back n viewcontroller
func popBack(_ nb: Int) {
if let viewControllers: [UIViewController] = self.navigationController?.viewControllers {
guard viewControllers.count < nb else {
self.navigationController?.popToViewController(viewControllers[viewControllers.count - nb], animated: true)
return
}
}
}
}
extension String {
var htmlToAttributedString: NSAttributedString? {
guard let data = data(using: .utf8) else { return nil }
do {
return try NSAttributedString(data: data, options: [.documentType: NSAttributedString.DocumentType.html, .characterEncoding:String.Encoding.utf8.rawValue], documentAttributes: nil)
} catch {
return nil
}
}
var htmlToString: String {
return htmlToAttributedString?.string ?? ""
}
}
extension String {
var length: Int {
return count
}
subscript (i: Int) -> String {
return self[i ..< i + 1]
}
func substring(fromIndex: Int) -> String {
return self[min(fromIndex, length) ..< length]
}
func substring(toIndex: Int) -> String {
return self[0 ..< max(0, toIndex)]
}
subscript (r: Range<Int>) -> String {
let range = Range(uncheckedBounds: (lower: max(0, min(length, r.lowerBound)),
upper: min(length, max(0, r.upperBound))))
let start = index(startIndex, offsetBy: range.lowerBound)
let end = index(start, offsetBy: range.upperBound - range.lowerBound)
return String(self[start ..< end])
}
}
extension UIView {
func addDashedBorderVertical(color: UIColor, width: CGFloat, height: CGFloat) {
let color = color.cgColor
let frameSize = self.frame.size
let lineLayer = CAShapeLayer()
lineLayer.strokeColor = color
lineLayer.lineWidth = width
lineLayer.lineDashPattern = [10,10]
let path = CGMutablePath()
path.addLines(between: [CGPoint(x: frameSize.width/2, y: 0), CGPoint(x: frameSize.width/2, y: height)])
lineLayer.path = path
self.layer.addSublayer(lineLayer)
}
}
extension UIImageView {
func load(link: String, placeholder: UIImage?, cache: URLCache? = nil) {
guard let url = URL(string: link) else { return }
let cache = cache ?? URLCache.shared
let request = URLRequest(url: url)
if let data = cache.cachedResponse(for: request)?.data, let image = UIImage(data: data) {
DispatchQueue.main.async {
self.image = image
}
} else {
self.image = placeholder
URLSession.shared.dataTask(with: request, completionHandler: { (data, response, error) in
if let data = data, let response = response, ((response as? HTTPURLResponse)?.statusCode ?? 500) < 300, let image = UIImage(data: data) {
let cachedData = CachedURLResponse(response: response, data: data)
cache.storeCachedResponse(cachedData, for: request)
DispatchQueue.main.async {
self.image = image
}
}
}).resume()
}
}
}
let imageCache = NSCache<NSString, AnyObject>()
extension UIImage {
static func loadImageUsingCacheWithUrlString(_ urlString: String, completion: @escaping (UIImage) -> Void) {
if let cachedImage = imageCache.object(forKey: urlString as NSString) as? UIImage {
completion(cachedImage)
} else {
//No cache, so create new one and set image
if let url = URL(string: urlString) {
URLSession.shared.dataTask(with: url, completionHandler: { (data, response, error) in
if let error = error {
print(error)
return
}
DispatchQueue.main.async(execute: {
if let downloadedImage = UIImage(data: data!) {
imageCache.setObject(downloadedImage, forKey: urlString as NSString)
completion(downloadedImage)
}
})
}).resume()
}
}
}
}
typealias GradientPoints = (startPoint: CGPoint, endPoint: CGPoint)
enum GradientOrientation {
case topRightBottomLeft
case topLeftBottomRight
case horizontal
case vertical
var startPoint : CGPoint {
return points.startPoint
}
var endPoint : CGPoint {
return points.endPoint
}
var points : GradientPoints {
switch self {
case .topRightBottomLeft:
return (CGPoint(x: 0.0,y: 1.0), CGPoint(x: 1.0,y: 0.0))
case .topLeftBottomRight:
return (CGPoint(x: 0.0,y: 0.0), CGPoint(x: 1,y: 1))
case .horizontal:
return (CGPoint(x: 0.0,y: 0.5), CGPoint(x: 1.0,y: 0.5))
case .vertical:
return (CGPoint(x: 0.0,y: 0.0), CGPoint(x: 0.0,y: 1.0))
}
}
}
extension UIView {
func applyGradient(colours: [UIColor], locations: [NSNumber]? = nil, cornerRadius: CGFloat) {
let gradient = CAGradientLayer()
gradient.frame = self.bounds
gradient.colors = colours.map { $0.cgColor }
gradient.locations = locations
gradient.cornerRadius = cornerRadius
gradient.name = "linearGradientLayer"
self.layer.insertSublayer(gradient, at: 0)
}
func applyGradient(colours: [UIColor], gradient orientation: GradientOrientation, cornerRadius: CGFloat) {
let gradient = CAGradientLayer()
gradient.frame = self.bounds
gradient.colors = colours.map { $0.cgColor }
gradient.startPoint = orientation.startPoint
gradient.endPoint = orientation.endPoint
gradient.cornerRadius = cornerRadius
gradient.name = "linearGradientLayer"
self.layer.insertSublayer(gradient, at: 0)
}
}
extension UIViewController
{
func setupToHideKeyboardOnTapOnView()
{
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(UIViewController.dismissKeyboardWarply))
tap.cancelsTouchesInView = false
view.addGestureRecognizer(tap)
}
@objc func dismissKeyboardWarply()
{
view.endEditing(true)
}
}
extension UIFont {
class func mediumSystemFont(ofSize pointSize: CGFloat) -> UIFont {
return self.systemFont(ofSize: pointSize, weight: .medium)
}
}
public extension UIView {
private static let kLayerNameGradientBorder = "GradientBorderLayer"
func gradientBorder(width: CGFloat,
colors: [UIColor],
startPoint: CGPoint = CGPoint(x: 0.5, y: 0.0),
endPoint: CGPoint = CGPoint(x: 0.5, y: 1.0),
andRoundCornersWithRadius cornerRadius: CGFloat = 0) {
let existingBorder = gradientBorderLayer()
let border = existingBorder ?? CAGradientLayer()
border.frame = CGRect(x: bounds.origin.x, y: bounds.origin.y,
width: bounds.size.width + width, height: bounds.size.height + width)
border.colors = colors.map { return $0.cgColor }
border.startPoint = startPoint
border.endPoint = endPoint
let mask = CAShapeLayer()
let maskRect = CGRect(x: bounds.origin.x + width/2, y: bounds.origin.y + width/2,
width: bounds.size.width - width, height: bounds.size.height - width)
mask.path = UIBezierPath(roundedRect: maskRect, cornerRadius: cornerRadius).cgPath
mask.fillColor = UIColor.clear.cgColor
mask.strokeColor = UIColor.white.cgColor
mask.lineWidth = width
border.mask = mask
let exists = (existingBorder != nil)
if !exists {
layer.addSublayer(border)
}
}
private func gradientBorderLayer() -> CAGradientLayer? {
let borderLayers = layer.sublayers?.filter { return $0.name == UIView.kLayerNameGradientBorder }
if borderLayers?.count ?? 0 > 1 {
fatalError()
}
return borderLayers?.first as? CAGradientLayer
}
}
public extension CGPoint {
enum CoordinateSide {
case topLeft, top, topRight, right, bottomRight, bottom, bottomLeft, left
}
static func unitCoordinate(_ side: CoordinateSide) -> CGPoint {
switch side {
case .topLeft: return CGPoint(x: 0.0, y: 0.0)
case .top: return CGPoint(x: 0.5, y: 0.0)
case .topRight: return CGPoint(x: 1.0, y: 0.0)
case .right: return CGPoint(x: 0.0, y: 0.5)
case .bottomRight: return CGPoint(x: 1.0, y: 1.0)
case .bottom: return CGPoint(x: 0.5, y: 1.0)
case .bottomLeft: return CGPoint(x: 0.0, y: 1.0)
case .left: return CGPoint(x: 1.0, y: 0.5)
}
}
}
extension UITextField {
@IBInspectable var doneAccessory: Bool{
get{
return self.doneAccessory
}
set (hasDone) {
if hasDone{
addDoneButtonOnKeyboard()
}
}
}
func addDoneButtonOnKeyboard()
{
let doneToolbar: UIToolbar = UIToolbar(frame: CGRect.init(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
doneToolbar.barStyle = .default
let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))
let items = [flexSpace, done]
doneToolbar.items = items
doneToolbar.sizeToFit()
self.inputAccessoryView = doneToolbar
}
@objc func doneButtonAction()
{
self.resignFirstResponder()
}
}
extension UINavigationBar {
func hideBottomHairline() {
self.hairlineImageView?.isHidden = true
}
func showBottomHairline() {
self.hairlineImageView?.isHidden = false
}
}
extension UIToolbar {
func hideBottomHairline() {
self.hairlineImageView?.isHidden = true
}
func showBottomHairline() {
self.hairlineImageView?.isHidden = false
}
}
extension UIView {
fileprivate var hairlineImageView: UIImageView? {
return hairlineImageView(in: self)
}
fileprivate func hairlineImageView(in view: UIView) -> UIImageView? {
if let imageView = view as? UIImageView, imageView.bounds.height <= 1.0 {
return imageView
}
for subview in view.subviews {
if let imageView = self.hairlineImageView(in: subview) { return imageView }
}
return nil
}
}
extension UINavigationController {
func hideHairline() {
if let hairline = findHairlineImageViewUnder(navigationBar) {
hairline.isHidden = true
}
}
func restoreHairline() {
if let hairline = findHairlineImageViewUnder(navigationBar) {
hairline.isHidden = false
}
}
func findHairlineImageViewUnder(_ view: UIView) -> UIImageView? {
if view is UIImageView && view.bounds.size.height <= 1.0 {
return view as? UIImageView
}
for subview in view.subviews {
if let imageView = self.findHairlineImageViewUnder(subview) {
return imageView
}
}
return nil
}
}
/// Class to allow links but no selection.
/// Basically, it disables unwanted UIGestureRecognizer from UITextView.
class UnselectableTappableTextView: UITextView {
// required to prevent blue background selection from any situation
override var selectedTextRange: UITextRange? {
get { return nil }
set {}
}
override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
if gestureRecognizer is UIPanGestureRecognizer {
// required for compatibility with isScrollEnabled
return super.gestureRecognizerShouldBegin(gestureRecognizer)
}
if let tapGestureRecognizer = gestureRecognizer as? UITapGestureRecognizer,
tapGestureRecognizer.numberOfTapsRequired == 1 {
// required for compatibility with links
return super.gestureRecognizerShouldBegin(gestureRecognizer)
}
// allowing smallDelayRecognizer for links
if let longPressGestureRecognizer = gestureRecognizer as? UILongPressGestureRecognizer,
// comparison value is used to distinguish between 0.12 (smallDelayRecognizer) and 0.5 (textSelectionForce and textLoupe)
longPressGestureRecognizer.minimumPressDuration < 0.325 {
return super.gestureRecognizerShouldBegin(gestureRecognizer)
}
// preventing selection from loupe/magnifier (_UITextSelectionForceGesture), multi tap, tap and a half, etc.
gestureRecognizer.isEnabled = false
return false
}
}
extension UIBezierPath {
convenience init(shouldRoundRect rect: CGRect, topLeftRadius: CGSize = .zero, topRightRadius: CGSize = .zero, bottomLeftRadius: CGSize = .zero, bottomRightRadius: CGSize = .zero){
self.init()
let path = CGMutablePath()
let topLeft = rect.origin
let topRight = CGPoint(x: rect.maxX, y: rect.minY)
let bottomRight = CGPoint(x: rect.maxX, y: rect.maxY)
let bottomLeft = CGPoint(x: rect.minX, y: rect.maxY)
if topLeftRadius != .zero{
path.move(to: CGPoint(x: topLeft.x+topLeftRadius.width, y: topLeft.y))
} else {
path.move(to: CGPoint(x: topLeft.x, y: topLeft.y))
}
if topRightRadius != .zero{
path.addLine(to: CGPoint(x: topRight.x-topRightRadius.width, y: topRight.y))
path.addCurve(to: CGPoint(x: topRight.x, y: topRight.y+topRightRadius.height), control1: CGPoint(x: topRight.x, y: topRight.y), control2:CGPoint(x: topRight.x, y: topRight.y+topRightRadius.height))
} else {
path.addLine(to: CGPoint(x: topRight.x, y: topRight.y))
}
if bottomRightRadius != .zero{
path.addLine(to: CGPoint(x: bottomRight.x, y: bottomRight.y-bottomRightRadius.height))
path.addCurve(to: CGPoint(x: bottomRight.x-bottomRightRadius.width, y: bottomRight.y), control1: CGPoint(x: bottomRight.x, y: bottomRight.y), control2: CGPoint(x: bottomRight.x-bottomRightRadius.width, y: bottomRight.y))
} else {
path.addLine(to: CGPoint(x: bottomRight.x, y: bottomRight.y))
}
if bottomLeftRadius != .zero{
path.addLine(to: CGPoint(x: bottomLeft.x+bottomLeftRadius.width, y: bottomLeft.y))
path.addCurve(to: CGPoint(x: bottomLeft.x, y: bottomLeft.y-bottomLeftRadius.height), control1: CGPoint(x: bottomLeft.x, y: bottomLeft.y), control2: CGPoint(x: bottomLeft.x, y: bottomLeft.y-bottomLeftRadius.height))
} else {
path.addLine(to: CGPoint(x: bottomLeft.x, y: bottomLeft.y))
}
if topLeftRadius != .zero{
path.addLine(to: CGPoint(x: topLeft.x, y: topLeft.y+topLeftRadius.height))
path.addCurve(to: CGPoint(x: topLeft.x+topLeftRadius.width, y: topLeft.y) , control1: CGPoint(x: topLeft.x, y: topLeft.y) , control2: CGPoint(x: topLeft.x+topLeftRadius.width, y: topLeft.y))
} else {
path.addLine(to: CGPoint(x: topLeft.x, y: topLeft.y))
}
path.closeSubpath()
cgPath = path
}
}
extension UIView{
func roundCorners(topLeft: CGFloat = 0, topRight: CGFloat = 0, bottomLeft: CGFloat = 0, bottomRight: CGFloat = 0) {//(topLeft: CGFloat, topRight: CGFloat, bottomLeft: CGFloat, bottomRight: CGFloat) {
let topLeftRadius = CGSize(width: topLeft, height: topLeft)
let topRightRadius = CGSize(width: topRight, height: topRight)
let bottomLeftRadius = CGSize(width: bottomLeft, height: bottomLeft)
let bottomRightRadius = CGSize(width: bottomRight, height: bottomRight)
let maskPath = UIBezierPath(shouldRoundRect: bounds, topLeftRadius: topLeftRadius, topRightRadius: topRightRadius, bottomLeftRadius: bottomLeftRadius, bottomRightRadius: bottomRightRadius)
let shape = CAShapeLayer()
shape.path = maskPath.cgPath
layer.mask = shape
}
}
extension UIView {
func applyRadiusMaskFor(topLeft: CGFloat = 0, bottomLeft: CGFloat = 0, bottomRight: CGFloat = 0, topRight: CGFloat = 0) {
let path = UIBezierPath()
path.move(to: CGPoint(x: bounds.width - topRight, y: 0))
path.addLine(to: CGPoint(x: topLeft, y: 0))
path.addQuadCurve(to: CGPoint(x: 0, y: topLeft), controlPoint: .zero)
path.addLine(to: CGPoint(x: 0, y: bounds.height - bottomLeft))
path.addQuadCurve(to: CGPoint(x: bottomLeft, y: bounds.height), controlPoint: CGPoint(x: 0, y: bounds.height))
path.addLine(to: CGPoint(x: bounds.width - bottomRight, y: bounds.height))
path.addQuadCurve(to: CGPoint(x: bounds.width, y: bounds.height - bottomRight), controlPoint: CGPoint(x: bounds.width, y: bounds.height))
path.addLine(to: CGPoint(x: bounds.width, y: topRight))
path.addQuadCurve(to: CGPoint(x: bounds.width - topRight, y: 0), controlPoint: CGPoint(x: bounds.width, y: 0))
let shape = CAShapeLayer()
shape.path = path.cgPath
layer.mask = shape
}
}
extension UIButton {
func setInsets(
forContentPadding contentPadding: UIEdgeInsets,
imageTitlePadding: CGFloat
) {
self.contentEdgeInsets = UIEdgeInsets(
top: contentPadding.top,
left: contentPadding.left,
bottom: contentPadding.bottom,
right: contentPadding.right + imageTitlePadding
)
self.titleEdgeInsets = UIEdgeInsets(
top: 0,
left: imageTitlePadding,
bottom: 0,
right: -imageTitlePadding
)
}
}