UI experiment using CRPixellatedView and the basic layout of MGSpotyViewController

PixelViewController.swift

//
//  PixelViewController.swift
//
//  Created by Taylor Franklin
//

import UIKit

class PixelViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
    
    var imageView: CRPixellatedView!
    var overView: UIView!
    var startOffset: CGPoint!
    var pulled: Bool = false

    override func viewDidLoad() {
        super.viewDidLoad()
        
        var view = UIView(frame: UIScreen.mainScreen().bounds)
        view.backgroundColor = UIColor.lightGrayColor()
        
        imageView = CRPixellatedView(frame: CGRectMake(0, 0, view.frame.size.width, view.frame.size.width))
        imageView.contentMode = UIViewContentMode.ScaleAspectFill
        imageView.image = UIImage(named: "cat.jpg")
        imageView.animationDuration = 0.4
        imageView.pixelScale = 15.0
        view.addSubview(imageView)
        
        overView = UIView(frame: imageView.bounds)
        overView.backgroundColor = UIColor.clearColor()
        view.addSubview(overView)
        
        
        var table = UITableView(frame: view.frame)
        table.delegate = self
        table.dataSource = self
        table.backgroundColor = UIColor.clearColor()
        view.addSubview(table)
        
        startOffset = table.contentOffset
        
        self.view = view
    }
    
    func scrollViewDidScroll(scrollView: UIScrollView) {

        if scrollView.contentOffset.y < startOffset.y {
            var absoluteY = abs(scrollView.contentOffset.y)
            var diff = startOffset.y - scrollView.contentOffset.y
            
            imageView.frame = CGRectMake(0.0-diff/2.0, 0.0, overView.frame.size.width+absoluteY, overView.frame.size.width+absoluteY)
            overView.frame = CGRectMake(0.0, 0.0+absoluteY, overView.frame.size.width, overView.frame.size.height)
            
            if !pulled && diff > 35.0 {
                imageView.reverse = false
                imageView.animate()
                pulled = true
            }
        } else if scrollView.contentOffset.y >= startOffset.y && pulled {
            imageView.reverse = true
            imageView.animate()
            pulled = false
        }
    }
    
    
    func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        if section == 0 {
            var transparent = UIView(frame: overView.bounds)
            transparent.backgroundColor = UIColor.clearColor()
            return transparent
        }
        return nil
    }
    
    func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        if section == 0 {
            return overView.frame.size.height
        }
        return 0
    }
    
    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 12;
    }
    
    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        if let cell = tableView.dequeueReusableCellWithIdentifier("cellID") as? UITableViewCell {
            return cell
        }
        let cell = UITableViewCell()
        cell.textLabel?.text = "I am a Cell"
        return cell
    }
    
    func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
        return 80
    }
    

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        tableView.deselectRowAtIndexPath(indexPath, animated: true)
    }

}