How To Resign The UITextView With Done Button - iphone

Question

i was wondering if any of you knew how to get access to that done button that appears above the keyboard when editing.
I have seen it before, above the keyboard there is a transparent black area and on the right there is a blue "Done" Button.
I could do this by hand with my own animations and buttons above the keyboard in my app to resign the UITextView, but i would prefer to use Apple GUI elements that people know.
So does anybody have any information about where this "Done" button comes from?

Answer 1

You don't really "get access" to that button, but through the UITextViewDelegate protocol, you essentially can:
http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UITextViewDelegate_Protocol/Reference/UITextViewDelegate.html
Implement the
- (void)textViewDidEndEditing:(UITextView *)textView
routine, and assign the UIViewController holding the textview to the textview' delegate.
Inside of that routine, you can do what you wish! You will need to call the
resignFirstResponder
method.
http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UIResponder_Class/Reference/Reference.html#//apple_ref/occ/instm/UIResponder/resignFirstResponder
You will have to implement the style of keyboard that implements that blue done button.
http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UITextInputTraits_Protocol/Reference/UITextInputTraits.html#//apple_ref/occ/intf/UITextInputTraits
FINAL ANSWER
- (void)textViewDidEndEditing:(UITextView *)textView{
[textView resignFirstResponder];
}