edc0der

extension String {

    var base64encoded: String? {
        if let data = self.data(using: .utf8) {
            return data.base64EncodedString(options: Data.Base64EncodingOptions(rawValue: 0))
        }
        return nil
    }

edc0der

func randomizeArray<T>(_ arr: inout Array<T>) -> Void {
    let maxIndex = arr.count - 1

    for i in 0...maxIndex {
        arr.swapAt(i, Int(arc4random_uniform(UInt32(maxIndex + 1))))
    }
}

edc0der

func className(target: AnyObject) -> String {
    let nameSpaceClassName = NSStringFromClass(type(of: target))
    if let className = nameSpaceClassName.components(separatedBy: ".").last {
        return className
    }
    return ""
}

edc0der

import UIKit

fileprivate let overlayViewTag: Int = 999
fileprivate let activityIndicatorViewTag: Int = 1000

// Public interface
extension UIView {
    func displayAnimatedActivityIndicatorView() {
        setActivityIndicatorView()
    }