ios - Inconsistent Unicode Emoji Glyphs/Symbols -

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i've been trying make use of unicode symbols astrology in products both apple , ios. i'm getting inconsistent results, shown here:

image of astrological symbols in table

most of these coming out like, reason taurus symbol appearing 1 way on first line, following moon, , different way, emoji-like purple button, when follows mars. these results consistent different symbols , across apple hardware; here's screen capture phone showing same problem other signs - scorpio comes out right, libra , cancer buttons.

more symbols in clip iphone

the strings extremely straightforward; "moon taurus" in first image \u263d moon, \u2649 taurus, assembled [nsstring stringwithformat:@"%@%@", @"\u263d", @"\u2649"]. "mars taurus" image same, \u2642 mars. string formatting identical in different cells of osx table, , in ios attributedstring.

any idea makes these symbols appear 1 way sometimes, , way other times?

unicode uses variation sequences select between different renderings code points—listed in standardizedvariants.txt file. in case, astrological symbols have both "text style" , "emoji style" variants selected between u+feoe (text style) or u+fe0f (emoji style) following code point:

u+2650 u+fe0e: ♐︎

u+2650 u+fe0f: ♐️

note correct interpretation of variation selector depends on support both application/framework , fonts being used. on chrome (42) there doesn't appear difference between examples above, on safari (8) distinct.


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