问题
I am developing one application, in that application i want to add some restriction based on Finger print login.
Let's assume i have added two Fingerprint in my device.
1) Left hand index finger
2) Right hand index finger
Is there any way so i can get idea about which finger has been used for the authentication, i mean to say i am logged in my app using left index finger or right index finger.
FingerprintManager.AuthenticationResult
回答1:
Is there any way so i can get idea about which finger has been used for the authentication
No, sorry.
回答2:
sorry, you can't register fingerprint or access the data but only can check the enrollment with code below
//Check whether the device has a fingerprint sensor//
if (!mFingerprintManager.isHardwareDetected()) {
// If a fingerprint sensor isn’t available, then inform the user that they’ll be unable to use your app’s fingerprint functionality//
textView.setText("Your device doesn't support fingerprint authentication");
}
//Check whether the user has granted your app the USE_FINGERPRINT permission//
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
// If your app doesn't have this permission, then display the following text//
Toast.makeText(EnterPinActivity.this, "Please enable the fingerprint permission", Toast.LENGTH_LONG).show();
}
//Check that the user has registered at least one fingerprint//
if (!mFingerprintManager.hasEnrolledFingerprints()) {
// If the user hasn’t configured any fingerprints, then display the following message//
Toast.makeText(EnterPinActivity.this, "No fingerprint configured. Please register at least one fingerprint in your device's Settings", Toast.LENGTH_LONG).show();
}
//Check that the lockscreen is secured//
if (!mKeyguardManager.isKeyguardSecure()) {
// If the user hasn’t secured their lockscreen with a PIN password or pattern, then display the following text//
Toast.makeText(EnterPinActivity.this, "Please enable lockscreen security in your device's Settings", Toast.LENGTH_LONG).show();
}
来源:https://stackoverflow.com/questions/53139490/is-there-any-way-that-we-can-get-idea-about-the-finger-details-of-fingerprint-au