http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UITextViewDelegate_Protocol/Reference/UITextViewDelegate.html

实施

- (void)textViewDidEndEditing:(UITextView *)textView

例程,并将包含textview的UIViewController分配给textview’委托.

在那个例程中,你可以做你想做的！你需要打电话给

resignFirstResponder

方法.

http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UIResponder_Class/Reference/Reference.html#//apple_ref/occ/instm/UIResponder/resignFirstResponder

您必须实现实现蓝色完成按钮的键盘样式.

http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UITextInputTraits_Protocol/Reference/UITextInputTraits.html#//apple_ref/occ/intf/UITextInputTraits

最终的回答

- (void)textViewDidEndEditing:(UITextView *)textView{
    [textView resignFirstResponder];
}