CODEWITHSUNDEEP
iosswiftuitableviewuiview
JameS
JameS

Reputation: 231

Reload custom tableview on UIView data after another view controller unwind segue

I've been trying to reload data after another view controller is done saving file and unwind to the tableview

By the way, since this tableview is created on UIViewController, I got this error after trying to put tableview.reload()

Thread 1: EXC_BAD_ACCESS (code=2, address=0x7ffedffbcfa8)

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    tableView.reloadData()
    return fileURLs.count
}

I guess doing it this way may cause an infinite loop and keep reloadData forever?

what is the proper way to implement this method?

edit

put 

    override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(true)
    tableView.reloadData()
}

or

@IBAction func unwindToCSVList(sender: UIStoryboardSegue) {
    //tableView.reloadData()
}

Didn't work, either way, Is this related to my UITableView delegate?

Upvotes: 0

Views: 689

Answers (1)

Bista
Bista

Reputation: 7893

tableView.reloadData() causes a call to numberOfRowsInSection and vice-versa. You guessed it right: infinite loop.

You can do the following:

  1. Create a delegate, which will be conformed by the First Controller.
  2. Second Controller will call the delegate method and reload the table inside that.

Delegate example: get indexPath of UITableViewCell on click of Button from Cell

Or easy way.

Call tableView.reloadData() inside ViewWillAppear or viewDidAppear method.

Upvotes: 1

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