Keyboard hides TabBar

Question

I am working in a TabBar app. In one view there is a UISearchBar and, when is pressed, the keyboard appears.

The problem is that the keyboard hides the tabbar.

Do you know how to solve it?

Answer 1

It's been a while since this was asked, but for the sake of documentation, here it goes: First, subscribe to the NSNotificationCenter to receive the keyboard notification:

-(void) viewWillAppear:(BOOL)animated
{
 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillToggle:)
                                             name:UIKeyboardWillShowNotification object:nil];
 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillToggle:)
                                             name:UIKeyboardWillHideNotification object:nil];
}

don't forget to unsubscribe

- (void)viewWillDisappear:(BOOL)animated 
{
 [self.view endEditing:YES];
 [super viewWillDisappear:animated];
 [[NSNotificationCenter defaultCenter] removeObserver:self
                                                name:UIKeyboardWillShowNotification object:nil];
 [[NSNotificationCenter defaultCenter] removeObserver:self
                                                name:UIKeyboardWillHideNotification  object:nil];
}

Then implement the function that will be called by the notification center:

- (void) keyboardWillToggle:(NSNotification *)aNotification
{
 CGRect frame = [[[self tabBarController] tabBar] frame];
 CGRect keyboard = [[aNotification.userInfo valueForKey:@"UIKeyboardFrameEndUserInfoKey"] CGRectValue];
 frame.origin.y = keyboard.origin.y - frame.size.height;
 [UIView animateWithDuration:[[aNotification.userInfo valueForKey:@"UIKeyboardAnimationDurationUserInfoKey"] floatValue] animations:^
 {
     [[[self tabBarController] tabBar] setFrame:frame];
 }];

This will animate the TabBar at the keyboard's pace and keep it on top.