Test Completed by Samuel Moriyasu

.gitignore

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+# OS X
+.DS_Store
+
+# Xcode
+build/
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata
+*.xccheckout
+profile
+*.moved-aside
+DerivedData
+*.hmap
+*.ipa
+*.xcuserdata
+*.xcuserstate
+
+# CocoaPods
+Pods
+.idea
+
+/Docs/
+report.xml

CatchTestSam/CatchTestSam.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

CatchTestSam/CatchTestSam.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

CatchTestSam/CatchTestSam/Content/ContentViewController.swift

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+//
+//  ContentViewController.swift
+//  CatchTestSam
+//
+//  Created by smoriyasu on 26/07/20.
+//  Copyright © 2020 smoriyasu. All rights reserved.
+//
+
+import UIKit
+
+class ContentViewController: UIViewController {
+
+	var record : Record?;
+
+	@IBOutlet var contentTextView: UITextView!
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        // Do any additional setup after loading the view.
+		contentTextView.text = record?.content;
+		title = record?.title;
+    }
+}

CatchTestSam/CatchTestSam/List/ListCell.swift

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+//
+//  ListCell.swift
+//  CatchTestSam
+//
+//  Created by smoriyasu on 26/07/20.
+//  Copyright © 2020 smoriyasu. All rights reserved.
+//
+
+import UIKit
+
+class ListCell: UITableViewCell
+{
+	var record : Record?;
+
+    override func awakeFromNib() {
+        super.awakeFromNib()
+        // Initialization code
+    }
+
+	func configure(record : Record)
+	{
+		self.record = record;
+		self.textLabel?.text = record.title;
+		self.detailTextLabel?.text = record.subtitle;
+	}
+}

CatchTestSam/CatchTestSam/List/ListViewController.swift

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+//
+//  ListViewController.swift
+//  CatchTestSam
+//
+//  Created by smoriyasu on 25/07/20.
+//  Copyright © 2020 smoriyasu. All rights reserved.
+//
+
+import UIKit
+import Refreshable
+
+class ListViewController: UITableViewController {
+
+	let recordCollection = RecordCollection(fetchURL: URL(string: "https://raw.githubusercontent.com/catchnz/ios-test/master/data/data.json")!);
+	let pullDownHeight : CGFloat = 111;
+	let animator = SpinnerAnimator();
+
+
+    var coverView : UIView!
+    var logoView : UIImageView!
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+		self.tableView.addPullToRefresh(withAnimator: animator, height: pullDownHeight, action: self.refresh)
+
+		self.coverView = UIView();
+		self.coverView.isUserInteractionEnabled = false;
+		self.coverView.backgroundColor = .black;
+		self.logoView = UIImageView(image: UIImage(named: "Logo"));
+		self.coverView.addSubview(self.logoView);
+
+		self.tableView.addSubview(self.coverView)
+    }
+
+	override func viewDidLayoutSubviews() {
+		let safeAreaBounds = CGRect(x: 0, y: 0, width: self.tableView.bounds.width, height: self.tableView.contentSize.height);
+		self.coverView.frame = safeAreaBounds;
+
+		let midPoint = (self.tableView.bounds.height - (self.tableView.safeAreaInsets.top + self.tableView.safeAreaInsets.bottom)) / 2;
+		self.logoView.center = CGPoint(x: self.coverView.center.x, y: midPoint) ;
+	}
+
+	func refresh()
+	{
+		self.recordCollection.fetchRecords
+		{
+			self.tableView.reloadData();
+			self.hideCover();
+			self.tableView.stopPullToRefresh();
+		}
+    }
+
+
+	func hideCover()
+	{
+		UIView.animate(withDuration: 0.3, animations:
+		{
+			self.coverView.alpha = 0.25;
+		})
+		{ (finished) in
+
+		}
+	}
+
+	// MARK: Status Bar settings
+
+	override var prefersStatusBarHidden: Bool {
+		get {
+			return false
+		}
+	}
+
+	override var preferredStatusBarStyle: UIStatusBarStyle {
+		return .lightContent
+	}
+
+    // MARK: - Table view delegate
+
+	override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
+		return 60;
+	}
+
+    // MARK: - Table view data source
+
+    override func numberOfSections(in tableView: UITableView) -> Int {
+        return 1
+    }
+
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+		return recordCollection.records.count;
+    }
+
+
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+		let cell = tableView.dequeueReusableCell(withIdentifier: "ListCell", for: indexPath);
+
+		if let listCell = cell as? ListCell
+		{
+			let record = recordCollection.records[indexPath.row];
+			listCell.configure(record: record);
+		}
+
+        return cell
+    }
+
+	// MARK: Scroll View Delegate
+
+	override func scrollViewDidScroll(_ scrollView: UIScrollView)
+	{
+		let fixedOffset = -(self.tableView.contentOffset.y + self.tableView.safeAreaInsets.top);
+		let maxOffset = pullDownHeight - self.tableView.safeAreaInsets.top;
+		animator.setColorFromDisplacement(offset: fixedOffset, maxOffset: maxOffset);
+	}
+
+
+    // MARK: - Navigation
+    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
+
+		if let destination = segue.destination as? ContentViewController, let tappedCell = sender as? ListCell
+		{
+			destination.record = tappedCell.record;
+		}
+    }
+
+
+}

CatchTestSam/CatchTestSam/List/SpinnerAnimator.swift

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+//
+//  SpinnerAnimator.swift
+//  CatchTestSam
+//
+//  Created by smoriyasu on 26/07/20.
+//  Copyright © 2020 smoriyasu. All rights reserved.
+//
+
+import UIKit
+import Refreshable
+
+class SpinnerAnimator: UIView, PullToRefreshDelegate
+{
+    var spinner : UIImageView!
+	var header : UIView!
+
+	let backgroundBrightness = 0.4;
+
+	override init(frame: CGRect) {
+        super.init(frame: frame)
+        autoresizingMask = .flexibleWidth
+		self.backgroundColor = .black;
+
+		// The space above the Refresh Control is empty, so this view is prevent the table background from being visible.
+		let headerFrame = CGRect(x: 0, y: -1000, width: 2000, height: 1000);
+		header = UIView(frame: headerFrame);
+		self.header.backgroundColor = UIColor(white: backgroundBrightness, alpha: 1.0);
+		addSubview(self.header);
+
+		self.spinner = UIImageView(image: UIImage(named: "Spinner"));
+        addSubview(spinner)
+        spinner.isHidden = true
+    }
+
+	public required init(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+	override func layoutSubviews() {
+		self.spinner.center = self.center;
+	}
+
+	func pullToRefreshAnimationDidStart(_ view: PullToRefreshView)
+	{
+		startAnimation();
+	}
+
+	func pullToRefreshAnimationDidEnd(_ view: PullToRefreshView)
+	{
+        spinner.isHidden = true
+	}
+
+	func pullToRefresh(_ view: PullToRefreshView, stateDidChange state: PullToRefreshState)
+	{
+	}
+
+	// Change the background color based on how far down it has been pulled.
+	func setColorFromDisplacement(offset: CGFloat, maxOffset: CGFloat)
+	{
+		let brightness = CGFloat((max(min(offset, maxOffset), 0) / maxOffset) * backgroundBrightness);
+		self.backgroundColor = UIColor(white: brightness, alpha: 1.0);
+	}
+
+	func startAnimation()
+	{
+		self.spinner.isHidden = false;
+		self.spinner.alpha = 0.0;
+
+		UIView.animate(withDuration: 0.1) {
+			self.spinner.alpha = 1.0;
+		}
+		animateSpinner();
+	}
+    func animateSpinner()
+	{
+		UIView.animate(
+			withDuration: Double(0.3),
+            delay: Double(0.0),
+			options: UIView.AnimationOptions.curveLinear,
+            animations: {
+                // Rotate the spinner by PI/2 = 90 degrees
+				self.spinner.transform = self.spinner.transform.rotated(by: -.pi/2)
+
+            },
+            completion: { finished in
+				if(!self.spinner.isHidden)
+				{
+					// Keep animating until it is hidden.
+					self.animateSpinner();
+				}
+            }
+        )
+    }
+}

CatchTestSam/CatchTestSam/Records/Record.swift

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+//
+//  Record.swift
+//  CatchTestSam
+//
+//  Created by smoriyasu on 26/07/20.
+//  Copyright © 2020 smoriyasu. All rights reserved.
+//
+
+import UIKit
+import SwiftyJSON
+
+class Record: NSObject
+{
+	var id : Int = -1;
+	var title : String = "";
+	var subtitle: String = "";
+	var content: String = "";
+
+	init(json : JSON)
+	{
+		id = json["id"].intValue;
+		title = json["title"].stringValue;
+		subtitle = json["subtitle"].stringValue;
+		content = json["content"].stringValue;
+	}
+}