I want to know if I can develop an application that users touch the screen and their fingerprint are registered. If it is possible, is there any library to store and retrieve and detect finger prints?
This is not possible, current consumer touch screens cannot 'see' with that level of detail. You might have more luck using the camera but I don't know of any projects that have done this before.
i do not think that exists yet.
http://www.talkandroid.com/51754-fingerprint-scanner-sdk-available-for-android-courtesy-of-xda/
Came across this http://www.diamondfortress.com/sdk. It's a paid SDK and it uses camera. But I have not personally tried it out.
来源：https://stackoverflow.com/questions/10369799/is-fingerprint-supported-in-android-devices