Not sure if Swiftkey has Chinese pinyin language pack? You may need to go thru Swiftkey settings to check what languages are supported.
If not, you can install Gboard (Google keyboard) and Google Pinyin input from play store. You will have a globe icon to switch to pinyin in Gboard
Yea . Just realised is inside the swiftkey.
I tot build in have chinese input. Is embedded into third party input software
Not sure if Swiftkey has Chinese pinyin language pack? You may need to go thru Swiftkey settings to check what languages are supported.
If not, you can install Gboard (Google keyboard) and Google Pinyin input from play store. You will have a globe icon to switch to pinyin in Gboard