Android Question Rotate image with finger (gesture)

Hi all.
someone have a example of how rotate a image with finger?
i know how make a image rotate with animation library but not with finger (gesture)

example image


someone can send a example how make this with gesture?

example app
https://play.google.com/store/apps/details?id=com.ketchapp.fingerspinner

i dont found any example of rotate with finger on the forum

PS: I will pay 20$ for working example (The better, if you have more than one)

thx