I have to make an app that, depending on the option that the user takes, must first be validated by the fingerprint reader in order to continue.
Users can use the cell phone for several months and then be replaced by other users, it is for that reason that I thought that my app should allow to create or update the fingerprint according to the need.
Download the example program and do tests on a Samsung A50 and for the example to work I first had to create the footprint in the configuration options.
In the example it is allowed to enter a key and its value.
I'm sure I'm not understanding how it works and I have the following doubts:
Is there a way to create the fingerprint without having it previously created in the cell phone settings?
What is the key for me if I can add, take or delete an item without it?
Although the device supports the fingerprint reader, I don't see a way for an app to detect it if there is not a configured fingerprint first. This can be misleading.
I appreciate your comments.