Table View Data Source not showing all the rows - ios

Question

I am a seasoned web and Android developer and am teaching myself iPhone development on my MacBook running xCode 8.2 using the book Beginning iPhone Development with Swift 2. I am running into issues converting the examples in the book to Swift 3, but have been able to deal with most of them.
The tables are not going well, however. I have converted all of the methods I can figure out, but I can't get all of the table data to show on any of the examples. Here is my code:
//
// RootViewController.swift
// Fonts
//
// Created by Thomas Hehl on 12/21/16.
//
import UIKit
class RootViewController: UITableViewController {
private var familyNames: [String]!
private var cellPointSize: CGFloat!
private var favoritesList: FavoritesList!
private static let familyCell = "FamilyName"
private static let favoritesCell = "Favorites"
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
familyNames = (UIFont.familyNames as [String]).sorted()
let preferredTableViewFont = UIFont.preferredFont(forTextStyle: UIFontTextStyle.headline)
cellPointSize = preferredTableViewFont.pointSize
favoritesList = FavoritesList.sharedFavoritesList
tableView.estimatedRowHeight = cellPointSize
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
tableView.reloadData()
}
func fontForDisplay(atIndexPath indexPath: NSIndexPath) -> UIFont? {
if indexPath.section == 0 {
let familyName = familyNames[ indexPath.row]
let fontName = UIFont.fontNames(forFamilyName: familyName).first
return fontName != nil ? UIFont(name: fontName!, size: cellPointSize) : nil
} else {
return nil
}
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
// return the number of sections
return favoritesList.favorites.isEmpty ? 1 : 2
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return section == 0 ? familyNames.count : 1
}
override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return section == 0 ? "All Font Families" : "My Favorite Fonts"
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
// the font names list
let cell = tableView.dequeueReusableCell(withIdentifier: RootViewController.familyCell, for: indexPath)
cell.textLabel?.font = fontForDisplay(atIndexPath: indexPath as NSIndexPath)
cell.textLabel?.text = familyNames[indexPath.row]
cell.detailTextLabel?.text = familyNames[indexPath.row]
return cell
} else {
//the favorites list
return tableView.dequeueReusableCell(withIdentifier: RootViewController.favoritesCell, for: indexPath)
}
}
/*
// Override to support conditional editing of the table view.
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
// Return false if you do not want the specified item to be editable.
return true
}
*/
/*
// Override to support editing the table view.
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
// Delete the row from the data source
tableView.deleteRows(at: [indexPath], with: .fade)
} 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
}
}
*/
/*
// Override to support rearranging the table view.
override func tableView(_ tableView: UITableView, moveRowAt fromIndexPath: IndexPath, to: IndexPath) {
}
*/
/*
// Override to support conditional rearranging of the table view.
override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
// Return false if you do not want the item to be re-orderable.
return true
}
*/
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
Unfortunately, even though that familyNames contains 75 entries, the table is only showing the first screenful. Here is the screenshot.
As you can see, the scrollbar's all the way at the bottom, but that's not nearly all of the fonts.

Answer 1

[EDIT - After chat, it appears the problem is merely that the OP doesn't know how to scroll. The OP sent me the actual project, I ran it, and it works just fine.]
Your code works fine. I literally just copied and pasted your code into the Master-Detail template, made a few adjustments (commenting out the second section stuff because you didn't supply any info about it), and got this: