@SuppressLint("NewApi") private boolean testFingerPrintSettings() {
print("Testing Fingerprint Settings");

if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
{
print("This Android version does not support fingerprint authentication.");
return false;
}

keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
fingerprintManager = (FingerprintManager)
getSystemService(FINGERPRINT_SERVICE);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
if (!keyguardManager.isKeyguardSecure()) {
    print("User hasn't enabled Lock Screen");
    return false;
}
}

if (ActivityCompat.checkSelfPermission(this,Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
print("User hasn't granted permission to use Fingerprint");
return false;
}

if (!fingerprintManager.hasEnrolledFingerprints()) {
print("User hasn't registered any fingerprints");
return false;
}

print("Fingerprint authentication is set.n");

return true;

}