Programmatically check if iPhone keyboard is on screen or not

Question

Possible Duplicate:
How to programatically check whether a keyboard is present in iphone app?
Detect if UIKeyBoard is Showing

Is there a way to programmatically check if the iPhone's keyboard is on screen or not?

score 8 · Accepted Answer · answered Oct 21 '11 at 22:13

8

Basically, you want to add an NSNotificationCenter observer:

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow) name:UIKeyboardDidShowNotification object:nil];

answered Oct 21 '11 at 22:13

WrightsCS

2

I don't want it to necessarily call a function upon receiving the notification, though, I just want it to check before it adds a subview. It'll affect the frame of the subview. – Mason Oct 21 '11 at 22:15
Oh wait, never mind. I can just change the value of a boolean. Thanks! – Mason Oct 21 '11 at 22:17
You can set the `selector` to **`nil`**, but how else do you expect to know when it appears? – WrightsCS Oct 21 '11 at 22:17

1 Answers1