The fallback mechanism with iOS is used to set fonts for different languages (script), thereby making text mixing typography more elegant. iOS 上利用 fallback 机制为不同语言的文字 (script) 设定字体，从而使得文本混排更为优雅。
css
language
font
ios
string
script
custom
uilabel
text
japanese
charm
fallback
font-family
english
chinese
mix
family
different
nsattributedstring
composited
-
Updated
Apr 15, 2021 - Swift