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Last active October 20, 2019 20:14
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Stuff I used that is super handy
//
// UsefulExtensions.swift
//
// Created by Mert Ejder on 14.11.2018.
// Copyright © 2018 mertejder. All rights reserved.
//
import Foundation
extension UIViewController {
func setMask(with hole: CGRect, in view: UIView){
// Create a mutable path and add a rectangle that will be h
let mutablePath = CGMutablePath()
mutablePath.addRect(view.bounds)
mutablePath.addRect(hole)
// Create a shape layer and cut out the intersection
let mask = CAShapeLayer()
mask.path = mutablePath
mask.fillRule = CAShapeLayerFillRule.evenOdd
// Add the mask to the view
view.layer.mask = mask
}
func setMask(withCircle hole: CGRect, in view: UIView){
// Create a mutable path and add a rectangle that will be h
let mutablePath = CGMutablePath()
mutablePath.addRect(view.bounds)
mutablePath.addEllipse(in: hole)
// mutablePath.addRect(circleHole)
// let circleHole = UIBezierPath(ovalIn: circleHole)
// Create a shape layer and cut out the intersection
let mask = CAShapeLayer()
mask.path = mutablePath
mask.fillRule = CAShapeLayerFillRule.evenOdd
// Add the mask to the view
view.layer.mask = mask
}
func alertWithTitle(title: String, message: String) -> UIAlertController {
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
return alert
}
}
public extension UIDevice {
static let modelName: String = {
var systemInfo = utsname()
uname(&systemInfo)
let machineMirror = Mirror(reflecting: systemInfo.machine)
let identifier = machineMirror.children.reduce("") { identifier, element in
guard let value = element.value as? Int8, value != 0 else { return identifier }
return identifier + String(UnicodeScalar(UInt8(value)))
}
func mapToDevice(identifier: String) -> String { // swiftlint:disable:this cyclomatic_complexity
#if os(iOS)
switch identifier {
case "iPod5,1": return "iPod Touch 5"
case "iPod7,1": return "iPod Touch 6"
case "iPhone3,1", "iPhone3,2", "iPhone3,3": return "iPhone 4"
case "iPhone4,1": return "iPhone 4s"
case "iPhone5,1", "iPhone5,2": return "iPhone 5"
case "iPhone5,3", "iPhone5,4": return "iPhone 5c"
case "iPhone6,1", "iPhone6,2": return "iPhone 5s"
case "iPhone7,2": return "iPhone 6"
case "iPhone7,1": return "iPhone 6 Plus"
case "iPhone8,1": return "iPhone 6s"
case "iPhone8,2": return "iPhone 6s Plus"
case "iPhone9,1", "iPhone9,3": return "iPhone 7"
case "iPhone9,2", "iPhone9,4": return "iPhone 7 Plus"
case "iPhone8,4": return "iPhone SE"
case "iPhone10,1", "iPhone10,4": return "iPhone 8"
case "iPhone10,2", "iPhone10,5": return "iPhone 8 Plus"
case "iPhone10,3", "iPhone10,6": return "iPhone X"
case "iPhone11,2": return "iPhone XS"
case "iPhone11,4", "iPhone11,6": return "iPhone XS Max"
case "iPhone11,8": return "iPhone XR"
case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return "iPad 2"
case "iPad3,1", "iPad3,2", "iPad3,3": return "iPad 3"
case "iPad3,4", "iPad3,5", "iPad3,6": return "iPad 4"
case "iPad4,1", "iPad4,2", "iPad4,3": return "iPad Air"
case "iPad5,3", "iPad5,4": return "iPad Air 2"
case "iPad6,11", "iPad6,12": return "iPad 5"
case "iPad7,5", "iPad7,6": return "iPad 6"
case "iPad2,5", "iPad2,6", "iPad2,7": return "iPad Mini"
case "iPad4,4", "iPad4,5", "iPad4,6": return "iPad Mini 2"
case "iPad4,7", "iPad4,8", "iPad4,9": return "iPad Mini 3"
case "iPad5,1", "iPad5,2": return "iPad Mini 4"
case "iPad6,3", "iPad6,4": return "iPad Pro (9.7-inch)"
case "iPad6,7", "iPad6,8": return "iPad Pro (12.9-inch)"
case "iPad7,1", "iPad7,2": return "iPad Pro (12.9-inch) (2nd generation)"
case "iPad7,3", "iPad7,4": return "iPad Pro (10.5-inch)"
case "iPad8,1", "iPad8,2", "iPad8,3", "iPad8,4":return "iPad Pro (11-inch)"
case "iPad8,5", "iPad8,6", "iPad8,7", "iPad8,8":return "iPad Pro (12.9-inch) (3rd generation)"
case "AppleTV5,3": return "Apple TV"
case "AppleTV6,2": return "Apple TV 4K"
case "AudioAccessory1,1": return "HomePod"
case "i386", "x86_64": return "Simulator \(mapToDevice(identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "iOS"))"
default: return identifier
}
#elseif os(tvOS)
switch identifier {
case "AppleTV5,3": return "Apple TV 4"
case "AppleTV6,2": return "Apple TV 4K"
case "i386", "x86_64": return "Simulator \(mapToDevice(identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "tvOS"))"
default: return identifier
}
#endif
}
return mapToDevice(identifier: identifier)
}()
}
extension Double {
/// Rounds the double to decimal places value
func rounded(toPlaces places:Int) -> Double {
let divisor = pow(10.0, Double(places))
return (self * divisor).rounded(.down) / divisor
}
func rounded(toPlaces places:Int, roundingRule: FloatingPointRoundingRule) -> Double {
let divisor = pow(10.0, Double(places))
return (self * divisor).rounded(roundingRule) / divisor
}
}
extension Date {
var ticks: UInt64 {
return UInt64((self.timeIntervalSince1970 + 62_135_596_800) * 10_000_000)
}
}
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 UIImageView {
func setImageRenderingMode(_ renderMode: UIImage.RenderingMode) {
assert(image != nil, "Image must be set before setting rendering mode")
// AlwaysOriginal as an example
image = image?.withRenderingMode(.alwaysOriginal)
}
}
extension UIView {
// Using a function since `var image` might conflict with an existing variable
// (like on `UIImageView`)
func asImage() -> UIImage {
if #available(iOS 10.0, *) {
let renderer = UIGraphicsImageRenderer(bounds: bounds)
return renderer.image { rendererContext in
layer.render(in: rendererContext.cgContext)
}
} else {
UIGraphicsBeginImageContext(self.frame.size)
self.layer.render(in:UIGraphicsGetCurrentContext()!)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return UIImage(cgImage: image!.cgImage!)
}
}
}
extension UIView {
func findViewController() -> UIViewController? {
if let nextResponder = self.next as? UIViewController {
return nextResponder
} else if let nextResponder = self.next as? UIView {
return nextResponder.findViewController()
} else {
return nil
}
}
}
extension Array where Element == Int {
func median() -> Double {
let sortedArray = sorted()
if count % 2 != 0 {
return Double(sortedArray[count / 2])
} else {
return Double(sortedArray[count / 2] + sortedArray[count / 2 - 1]) / 2.0
}
}
}
extension UIView {
var parentViewController: UIViewController? {
var parentResponder: UIResponder? = self
while parentResponder != nil {
parentResponder = parentResponder!.next
if let viewController = parentResponder as? UIViewController {
return viewController
}
}
return nil
}
}
extension UIViewController {
class func displaySpinner(onView : UIView) -> UIView {
let spinnerView = UIView.init(frame: onView.bounds)
spinnerView.backgroundColor = UIColor.init(red: 0.5, green: 0.5, blue: 0.5, alpha: 0.5)
let ai = UIActivityIndicatorView.init(style: .whiteLarge)
ai.startAnimating()
ai.center = spinnerView.center
DispatchQueue.main.async {
spinnerView.addSubview(ai)
onView.addSubview(spinnerView)
}
return spinnerView
}
class func removeSpinner(spinner :UIView) {
DispatchQueue.main.async {
spinner.removeFromSuperview()
}
}
class func addDarkBackground(to onView: UIView) -> UIView {
let spinnerView = UIView.init(frame: UIScreen.main.bounds)
spinnerView.backgroundColor = UIColor.init(red: 0, green: 0, blue: 0, alpha: 0.5)
onView.addSubview(spinnerView)
return spinnerView
}
class func removeDarkBackground(view :UIView) {
DispatchQueue.main.async {
view.removeFromSuperview()
}
}
func showAlert(title: String , message: String , okButtonText : String) {
let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertController.Style.alert)
alert.addAction(UIAlertAction(title: okButtonText, style: UIAlertAction.Style.default, handler: nil))
self.present(alert, animated: true, completion: nil)
}
}
extension String {
var isInt: Bool {
return Int(self) != nil
}
}
extension String {
func hexStringToUIColor (hex:String) -> UIColor {
var cString:String = hex.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()
if (cString.hasPrefix("#")) {
cString.remove(at: cString.startIndex)
}
if ((cString.count) != 6) {
return UIColor.gray
}
var rgbValue:UInt32 = 0
Scanner(string: cString).scanHexInt32(&rgbValue)
return UIColor(
red: CGFloat((rgbValue & 0xFF0000) >> 16) / 255.0,
green: CGFloat((rgbValue & 0x00FF00) >> 8) / 255.0,
blue: CGFloat(rgbValue & 0x0000FF) / 255.0,
alpha: CGFloat(1.0)
)
}
}
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