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// Playground - noun: a place where people can play


struct Distance {
    let value: Double
}

struct Time {
    let value: Double
}

bizz84

#import <objc/runtime.h>

@implementation UIViewController(Tracking)

+ (void)load {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        
        [self swizzleOriginalSelector:@selector(performSegueWithIdentifier:sender:)
                     swizzledSelector:@selector(xxx_performSegueWithIdentifier:sender:)];

bizz84

#!/bin/bash
# Script to count lines of code (.swift and .h and .m) for XCode projects

find . "(" -name "*.swift" -or -name "*.m" -or -name "*.h" ")" -print0 | xargs -0 wc -l | sort -n

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override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

    segue.destinationViewController.title = customTitle()
}

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class DestinationViewController: UIViewController {

    var viewModel: ViewModel!
	
    @IBOutlet var label: UILabel!

    override func viewDidLoad() {
        super.viewDidLoad()	
	
        // viewModel should be set by prepareForSegue. It it's not,

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// MARK: UITableViewDelegate
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    let cell = tableView.cellForRowAtIndexPath(indexPath)
    if shouldPerformSegue(cell) {
        self.performSegueWithIdentifier("CellDetailSegue", sender: cell)
    }
}

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class ViewController: UIViewController, UIPopoverPresentationControllerDelegate {

    @IBAction var sourceButton: UIButton!

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if segue.identifier == "SlideshowPopoverSegue" {
            let contentViewController = segue.destinationViewController
            
            contentViewController.modalPresentationStyle = UIModalPresentationStyle.Popover
            if let popover = contentViewController.popoverPresentationController {

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protocol TitlePresentable {
  var titleLabel: UILabel! { get set }
  func setTitle(title: String?)
}

extension TitlePresentable {
  func setTitle(title: String?) {
    titleLabel.text = title
  }
}

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protocol BytesCountPresentable {
  var bytesCountLabel: UILabel! { get set }
  func setBytesCount(bytesCount: Int64?)
}

extension BytesCountPresentable {
  func setBytesCount(bytesCount: Int64?) {
    bytesCountLabel.text = bytesCountString(bytesCount)
  }
  private func bytesCountString(bytesCount: Int64?) -> String {

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class BytesCountTitleTableViewCell: UITableViewCell, TitlePresentable, BytesCountPresentable {
  @IBOutlet var titleLabel: UILabel!
  @IBOutlet var bytesCountLabel: UILabel!
}