Question

so, basically I need to know if there is a way to have a observer o another method that is called when the keyboard is hidden.

The problem i have is that after dismissing the Keyboard, I commit 2 Animations, one to take the view to the original position (since I move up the view so the user can see the textfield while typing) and an Animation Flipping the View but the Flip occurs before the Keyboard is fully hidden so I have a little graphic glitch.

I’ve tried sleep(), and another wait methods without luck.

The Code Basically is this

- (BOOL)textFieldShouldReturn:(UITextField *)textFieldi{

[textFieldi resignFirstResponder];
     [UIView beginAnimations:nil context:NULL];

     [UIView setAnimationDuration:1.0];

     [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];

     [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];

     CuantoFaltaiOSAppDelegate * del = [CuantoFaltaiOSAppDelegate instance];

     del.headerView.frame = CGRectMake(0, 20, del.headerView.frame.size.width, del.headerView.frame.size.height);

     [UIView commitAnimations];

     return YES;
}

The problem is that the Keyboard isn’t fully Hide and the Flip is perfomed, so i need a way to wait for it.

Answer 1

Register for the UIKeyboardDidHideNotification notification.

[[NSNotificationCenter defaultCenter] addObserver:(id)
                                         selector:(SEL)
                                             name:(NSString *)
                                           object:(id)];

Example:

Subscribe to the UIKeyboardDidHideNotification as follows (put this in your viewWillAppear: method):

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidHide:) name:UIKeyboardDidHideNotification object:nil];

This assumes you have a method called keyboardDidHide: (this is where your animation logic will reside)