问题
I'm building a textview to compose status messages, and one of the functions it has is to include #hashtags within the text of a status message.
However, these #hashtags often aren't actual words, so iOS' autocorrect functionality causes them to appear with a red underline once the hashtag has been typed.
(For example: #seafair2014, #wwdc, and other non-word hashtags)
Is there a way to temporarily add a term to the iOS dictionary, so as to ignore any #hashtag or @username typos but still provide spell-checking for the rest of the UITextView?
回答1:
Use +[UITextChecker learnWord:]. You can listen to change events and dynamically add hashtag words.
Apple Reference
来源：https://stackoverflow.com/questions/21996291/is-there-a-way-to-have-ios-autocorrect-ignore-a-single-word-or-regex-in-a-uitex