Remove Bottom Space From UITextView

UITextView adds a little extra space to the bottom of the text. This isn't开发者_StackOverflow中文版 an extra line of text, but space that effects scrolling.

Is there any way to remove this space? I have attempted to use contentInset, contentOffset and contentSize but they all seem to have no effect.

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I found a very good solution at http://www.hanspinckaers.com/multi-line-uitextview-similar-to-sms.