Terminating app due to uncaught exception 'UIViewControllerHierarchyInconsistency',

Question

I created a toolbar above the picker with two buttons and worked on ios7, when i run in ios8 crash:

Terminating app two to uncaught exception \'UIVi

Answer 1

I had the same exception on iOS 8 and now fixed as the following codes.

The point is, you should not add an input view as a child view of view controller's view. (I have no idea why the code worked well in iOS 7 is no longer working well in iOS 8.)

Before (occurs error)

UITextField* someTF;
View* customView;
UIViewController *mainVC;

[mainVC.view addSubview:customView];
someTF.inputView = customView;

After (working well)

UITextField* someTF;
View* customView;
UIViewController *mainVC;

//  [mainVC.view addSubview:customView];  <-- delete this line
someTF.inputView = customView;