Using DZNEmptyDataSet in a UIViewController

DetailViewController.swift

//
//  DetailViewController.swift
//  objcInterop
//
//  Created by Christina Moulton on 2015-07-02.
//  Copyright (c) 2015 Teak Mobile Inc. All rights reserved.
//

import UIKit
import DZNEmptyDataSet

class DetailViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, DZNEmptyDataSetSource, DZNEmptyDataSetDelegate {

  @IBOutlet weak var tableView: UITableView?
  var objects = [AnyObject]()
  
  var detailItem: AnyObject? {
    didSet {
        // Update the view.
        self.configureView()
    }
  }

  func configureView() {
    // Update the user interface for the detail item.
    tableView?.emptyDataSetSource = self
    tableView?.emptyDataSetDelegate = self
    
    // A little trick for removing the cell separators
    self.tableView?.tableFooterView = UIView()
  }
  
  deinit {
    self.tableView?.emptyDataSetSource = nil
    self.tableView?.emptyDataSetDelegate = nil
  }

  override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    self.configureView()
  }

  override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
  }

  // MARK: - Table View
  
  func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return 1
  }
  
  func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return objects.count
  }
  
  func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath)
    
    let object = objects[indexPath.row] as! NSDate
    cell.textLabel!.text = object.description
    return cell
  }
  
  func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
    // Return false if you do not want the specified item to be editable.
    return true
  }
  
  func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
    if editingStyle == .Delete {
      objects.removeAtIndex(indexPath.row)
      tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
      self.tableView?.reloadEmptyDataSet()
    } else if editingStyle == .Insert {
      // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
    }
  }

  // MARK: - DZNEmptyDataSetSource, DZNEmptyDataSetDelegate

  func titleForEmptyDataSet(scrollView: UIScrollView!) -> NSAttributedString! {
    return NSAttributedString(string: "Got nothin'")
  }
  
  func descriptionForEmptyDataSet(scrollView: UIScrollView!) -> NSAttributedString! {
    return NSAttributedString(string: "Sorry about this, I'm just all out of data")
  }
  
  func emptyDataSetShouldDisplay(scrollView: UIScrollView!) -> Bool {
    return objects.count == 0
  }
}