How to Use Unsupported Exception for Lower Platform Version

Question

I have a DialogFragment that handles login and fingerprint authentication for my application. This fragment uses two classes that are exclusive to API 23,

Answer 1

I had the same error and solved it the following way:

catch (Exception e) {
    if (e instanceof KeyPermanentlyInvalidatedException) {
        //your error handling goes here
    }

It isn't vey nice, but it works