After adding this line to AddItemViewController:
textField.becomeFirstResponder()
I get this:
Unexpectedly found nil while implicitly unwrapping
Help!
After adding this line to AddItemViewController:
textField.becomeFirstResponder()
I get this:
Unexpectedly found nil while implicitly unwrapping
Help!
Hi @steveb_la, the error “unexpectedly found nil while implicitly unwrapping” will usually point to an optional’s value being nil. You can unwrap it safely using a guard statement for example or forcibly. In this case, if you are using a storyboard the IBOutlet connected to the textField, I would make sure it is properly named and connected.
Best,
Gina
Hi @gdelarosa ,
I was looking for example guard statements. Could you point me to some?
Thank you.
Steve
Sure thing @steveb_la,
One example here displays the parameter firstName as an optional. Then using a guard let statement we can make sure firstName is not nil.
func checkIn(_ firstName: String?) {
guard let unwrapName = firstName else {
print("Not a valid name in our system.")
return
}
print("Thank you for checking in \(unwrapName)!")
}
Resources:
Best,
Gina
Thank you for those references. I’ll go look at them. I was playing around and found that this works. (Xcode 12.4)
textField?.becomeFirstResponder()
@steveb_la Please check out my tutorial about guard statements when you get a chance:
I hope it helps!