Swift tableview numberOfRowsInSection返回nil致命错误可选值

Question

Hello i have tableview and loading items when table numberOFRowsInSection 0 gives fatal error: unexpectedly found nil while unwrapping an Optional value

My code here

var itemsList = [String]()


internal func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
      self.itemsmessage.text = "Listed your last \(itemsList.count) items"

    return itemsList.count
}

Giving Error

fatal error: unexpectedly found nil while unwrapping an Optional value

When return nil gives this error in self.itemsmessage.text line. Thank you.

Answer 1

Your self.itemsmessage may not be connected to the actual control in your view controller. Check that its connected. To put safe code around that try this.

if let message = self.itemsmessage { message.text = "Listed your last \\(itemsList.count) items" } else { print("Seems like your itemsmessage is not connected to a text label") }