UITextView subclass to replace range with attributed text, with undo/redo support. (iOS 7 only)

MyTextView.h

#import <UIKit/UIKit.h>

@interface MyTextView : UITextView

- (void)replaceSelectionWithAttributedText:(NSAttributedString *)text;
- (void)replaceRange:(NSRange)range withAttributedText:(NSAttributedString *)text;

@end

MyTextView.m

#import "MyTextView.h"

@implementation MyTextView

- (void)replaceSelectionWithAttributedText:(NSAttributedString *)text
{
    [self replaceRange:self.selectedRange withAttributedText:text];
}

- (void)replaceRange:(NSRange)range withAttributedText:(NSAttributedString *)text
{
    [self replaceRange:range withAttributedText:text andSelectRange:NSMakeRange(range.location, text.length)];
}

- (void)replaceRange:(NSRange)range withAttributedText:(NSAttributedString *)text andSelectRange:(NSRange)selection
{
    [[self.undoManager prepareWithInvocationTarget:self] replaceRange:NSMakeRange(range.location, text.length)
                                                   withAttributedText:[self.attributedText attributedSubstringFromRange:range]
                                                       andSelectRange:self.selectedRange];
    [self.textStorage replaceCharactersInRange:range withAttributedString:text];
    self.selectedRange = selection;
}

@end

I've been struggling with this for several hours and this is a simple and complete solution to the problem of pasting attributed text into a UITextView. Thank you!