问题
Hello All,
I have a problem regarding Unicode characters. I'm able to append Apple Art Work Unicode Characters in UITextView.
Like this : -
self.textView.text = @"\ue00A";
It is Okay.
But now i have many Unicodes Characters which're not in Apple art work.
One of them is U+1F3C7
Now I'm trying to show it in UITextView.
self.textView.text = @"\u1f3c7";
Then it is showing me an Special Character instead of Emoji.
This is the Emoji Icon of this Unicode But it is showing me Ἴ7.
Apple doesn't support all Unicode Characters ?How can I add my own emojies in my application ?
Let me know if my question is not clear for you.
回答1:
Doesn't Objective-C use UTF-16 internally, like Java and C#?
If so, then U+1F3C7 wouldn't be "\u1f3c7", but the surrogate-pair, "\uD83C\uDFC7".
Otherwise, there has to be some way to indicate a higher character, because "\u1f3c7" is the same as "\u1f3c" + "7", which is Ἴ7 (capital iota with psili and oxia, then 7).
Edit: After some discussion between the OP and myself, we figured out that the way to do this in Objective C is one I know as the C++ way:
"\U0001F3C7"
(\uXXXX with a small u and 4 hex digits works if it fits in thos 4 hex digits, \UXXXXXXXX with a capital U and 8 hex digits works for everything, but is longer to type).
Now our friend just needs to deal with the matter of font support, which alas is another problem in getting this to actually look as he wants.
来源：https://stackoverflow.com/questions/12140770/does-ios-support-all-unicode-emojies