How to use inputAccessoryViewController in iOS 8 - ios

Question

In iOS 8 Apple introduced a new property under UIResponder called inputAccessoryViewController. However there has been no documentation explaining how one can use it.
Moreover, in iOS 8, setting the inputAccessoryView property of a UIViewController subclass and making the subclass the first responder seems to cause the view controller to leak.
My question is: How can I use an inputAccessoryViewController in a UIViewController subclass? Does that solve the memory leak problem?

Answer 1

If you want to use inputAccessoryViewController, you need to subclass any UITextView or UITextField controls and override the inputAccessoryViewController property readwrite.
#interface MyTextView: UITextView
#property (nonatomic, retain) UIInputViewController *inputAccessoryViewController;
#end
Note that the view controller you provide should be a UIInputViewController (which will give you access to input delegate and text document information) and will create the 'inputView' (as self.view) if you call [super loadView], which you can add your subviews to. This UIInputView will be styled appropriately for the keyboard. I haven't experimented with trying to load from .xib in this case.
I also found to properly size the inputView (and avoid a bunch of constraint errors), I added the following code
- (void)updateViewConstraints
{
self.view.frame = CGRectMake(0, 0, CGRectGetWidth(self.view.superview.frame), myAccessoryHeight);
[super updateViewConstraints];
}

Answer 2

Add this method in your code. This will help you. from iOS 7 you need to return UIView only as accessoryView.
-(UIView *)inputAccessoryView{
UIView *accessoryView = [[UIView alloc] initWithFrame:toolView.frame];
toolView.frame = CGRectMake(0, 0, self.view.frame.size.width, 50);
[accessoryView addSubview:toolView];
return accessoryView;
}