Problem with becomeFirstResponder and keyboard

Question

Hi all,
I wonder why on its first call, my (modal) view controller works fine and the UITextField receives the 'becomeFirstResponder' message, has focus (i.e. the call does work!) but keyboard is not shown!!
Has anyone experienced this?
In subsequent calls when this view controller is showed, text field shows keyboard.
Rodrigo

Answer 1

I just ran into this problem in my new app. I have a view I display as a modal view. This view contains a single text field that I attempt to make the first responder.
If the modal view is displayed with animation the keyboard displays properly when 'becomeFirstResponder' is called on the text field. But, if the modal view is displayed without animation, the keyboard does NOT appear. No user interaction can make the keyboard appear.
Luckily I found a simple solution. I don't call 'becomeFirstResponder' in the 'viewDidLoad' method anymore. Instead I have the following code for 'viewDidAppear':
- (void)viewDidAppear:(BOOL)animated {
if (!animated) {
[txtField resignFirstResponder];
[txtField becomeFirstResponder];
This makes the keyboard show as expected whether the modal view was displayed with or without animation.
What's really weird is that in either case the 'viewDidAppear' method is getting called twice each time it appears. Why not once?