NSTextField becomeFirstResponder not work in awakeFromNib

Question

I want to set focus when form load but it didn't work in awakeFromNib.

[myTextField becomeFirstResponder];

Answer 1

Just to quote the apple docs:

Use the NSWindow makeFirstResponder: method, not this method, to make an object the first responder. Never invoke this method directly.

Do this instead:

[[myTextField window] makeFirstResponder:myTextField];

Answer 2

The Swift version to this question:

textField.window?.makeFirstResponder(textField)