EXC_BAD_ACCESS in Custom UITableViewCell - ios

Question

I've been banging my head against a wall for the past day or so trying to figure out this problem, so I hope someone can help!
I'm just trying to create a custom subclass of a UITableViewCell, but my app keeps crashing with an EXC_BAD_ACCESS error in the init function of my custom TableViewCell. I'm on Xcode 7.01
DiscoverViewController.swift
import UIKit
class DiscoverViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
let networkInterface: GfyNetwork = GfyNetwork()
var gfyArray: Array<GfyModel> = []
var tableView: UITableView = UITableView()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.title = "Discover"
let navbar = self.navigationController!.navigationBar
navbar.tintColor = UIColor(red:0.32, green:0.28, blue:0.61, alpha:1.0)
networkInterface.getTrendingGfys("", completionHandler: printGfys)
tableView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
tableView.delegate = self
tableView.dataSource = self
tableView.separatorStyle = .None
tableView.rowHeight = 260
tableView.contentInset = UIEdgeInsetsMake(10, 0, 10, 0)
tableView.registerClass(GfyTableViewCell.self, forCellReuseIdentifier: "gfycell")
self.view.addSubview(tableView)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func printGfys(gfyJSON: Array<GfyModel>) -> Array<GfyModel> {
// Array of fetched gfys
self.gfyArray = gfyJSON
// Update Tableview
dispatch_async(dispatch_get_main_queue()) {
self.tableView.reloadData()
}
return gfyJSON
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.gfyArray.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCellWithIdentifier("gfycell", forIndexPath: indexPath) as? GfyTableViewCell else { fatalError("unexpected cell dequeued from tableView") }
cell.gfy = self.gfyArray[indexPath.row]
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
print("You selected cell #\(indexPath.row)!")
}
}
GfyTableViewCell.swift
import UIKit
class GfyTableViewCell: UITableViewCell {
let padding: CGFloat = 5
var gfy: GfyModel!
var bgView: UIView!
var imageURL: UIImageView!
var title: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
convenience override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
self.init(style: style, reuseIdentifier: reuseIdentifier) // Error happens here
backgroundColor = UIColor.whiteColor()
selectionStyle = .None
bgView.frame = CGRectMake(8, 0, contentView.frame.width-16, 250)
bgView.layer.cornerRadius = 3
bgView.layer.borderColor = UIColor(red:0, green:0, blue:0, alpha:0.4).CGColor
bgView.layer.borderWidth = 0.5
bgView.clipsToBounds = true
bgView.backgroundColor = UIColor.whiteColor()
title.frame = CGRectMake(10, 210, bgView.frame.width-100, 10)
title.text = gfy.title
title.font = UIFont.systemFontOfSize(10)
imageURL.frame = CGRectMake(0, 0, bgView.frame.width, 200)
if let url = NSURL(string: gfy.thumbUrl) {
if let data = NSData(contentsOfURL: url){
imageURL.contentMode = UIViewContentMode.ScaleAspectFill
imageURL.image = UIImage(data: data)
}
}
contentView.addSubview(bgView)
bgView.addSubview(imageURL)
}
override func prepareForReuse() {
super.prepareForReuse()
}
override func layoutSubviews() {
super.layoutSubviews()
}
}
Any help would be much appreciated. The app works when using standard UITableViewCells, but as soon as I try to add custom tableviewcells, it blows up :(
edit:
This is what my stack looks like. I'm pretty sure I'm doing something wrong in my override init() function in GfyTableViewCell.swift, but I don't know what that is:

Answer 1

The problem here is that the init method calls itself. Replace the following line:
self.init(style: style, reuseIdentifier: reuseIdentifier)
with:
super.init(style: style, reuseIdentifier: reuseIdentifier)
If you call a method within itself it will recursively call itself until the program eventually crashes because of a stack overflow or running out of memory. It's not obvious why this crashes with EXC_BAD_ACCESS, but it's possible this leads to one instance failing to actually be allocated.

Answer 2

Wow, as I expected, it was a simple error on my part.
Instead of calling:
convenience override init(style: UITableViewCellStyle, reuseIdentifier: String?) { ... }
It seems like I need to ditch the convenience and just call:
override init(style: UITableViewCellStyle, reuseIdentifier: String?) { ... }
Then I can do as Anthony posted above and call super.init(style: style, reuseIdentifier: reuseIdentifier) without any errors.

Answer 3

Fix:For Custom TableviewCell in Xcode 7.1.1.
func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) {
let cellT = cell as! CustomTableViewCellName
//enter code here
}