iPhone: How to fix inputAccessoryView to View? - ios

Question

I have a toolbar which I need to use when editing text, and when not.
In previous apps, I've moved the toolbar manually (listening for notifications, etc.)
But I want to use inputAccessoryView... so in my viewDidLoad, I do
for (/*myTextFields*/) {
textField.inputAccessoryView = keyboardToolbar;
}
[self.view addSubView:keyboardToolbar];
Which works fine, the toolbar appears, I click on a text field, toolbar slides up - all good.
But when I then hide the keyboard, inputAccessoryView drags my toolbar off the screen. Is there any way to tell the inputAcessoryView where it's fixed location is? - Or do I have to go back to my old way of listening for notifications etc...?

Answer 1

I solved this by listening for Notifications and moving the toolbar up... oh well.
Something like this does the job:
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
/* Listen for keyboard */
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}
- (void)keyboardWillShow:(NSNotification *)notification
{
[keyboardToolbar setItems:itemSetFull animated:YES];
/* Move the toolbar to above the keyboard */
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
CGRect frame = self.keyboardToolbar.frame;
frame.origin.y = self.view.frame.size.height - 210.0;
self.keyboardToolbar.frame = frame;
[UIView commitAnimations];
}
- (void)keyboardWillHide:(NSNotification *)notification
{
[keyboardToolbar setItems:itemSetSmall animated:YES];
/* Move the toolbar back to bottom of the screen */
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
CGRect frame = self.keyboardToolbar.frame;
frame.origin.y = self.view.frame.size.height - frame.size.height;
self.keyboardToolbar.frame = frame;
[UIView commitAnimations];
}
I guess input accessory view is literally just meant for something stuck on top of the keyboard :)

Answer 2

I've figured it out recently, and it seems few people have. So, I would like to direct you to this answer: https://stackoverflow.com/a/24855095/299711, which I will just copy below:
Assign your UIToolbar to a property in your view controller:
#property (strong, nonatomic) UIToolbar *inputAccessoryToolbar;
In your top view controller, add these methods:
- (BOOL)canBecomeFirstResponder{
return YES;
}
- (UIView *)inputAccessoryView{
return self.inputAccessoryToolbar;
}
And then (optionally, as it usually shouldn't be necessary), whenever the keyboard gets hidden, just call:
[self becomeFirstResponder];
That way, your inputAccessoryToolbar will be both your view controller's and your text view's input accessory view.