?Android O???21??? ?????

??3??????Android O????????5???Android O?????????Android Police??David Ruddock??????Android O?????8?21????????????????????????????????

?Android O???8?21??

???????????????????????????(Android4.0)????(Android4.1/4.2)???(Android4.4)????(Android5.0)????(Android6.0)????(Android7.0)??????Android O??????(Oreo)?

Android O????????

??Android?????Hiroshi Lockheimer???????O?????(Oreo)??????????????????????????????????????????