How do I set the firstresponder?

问题

I have a view built through IB, there's a text view and and button on it. When the view shows up I would like to have the keyboard to be already displayed.

I tried to set the first responder in the didViewLoad but that didn't work.

I do have an IBOutlet that is connected to the textView and related accessor.

回答1:

Looks like you may have accidentally misspelled the method name didViewLoad instead of viewDidLoad. All you should need there (assuming your IBOutlet is connected in IB) is the following:

[textView becomeFirstResponder];

回答2:

I know this is tagged as cocoa-touch but this is highly ranked in Google and I ran into trouble with using -becomeFirstResponder on OS X; it did nothing. From the NSResponder documentation,

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

So on OS X use,

[[myView window] makeFirstResponder:myView];

回答3:

For Swift

textView.becomeFirstResponder()

来源：https://stackoverflow.com/questions/1422733/how-do-i-set-the-firstresponder