private void ChangeUnlockMode(FingerprintUnlockMode oldMode, FingerprintUnlockMode newMode)
{
if (oldMode == newMode)
{
return;
}
if (_samsungBiometry != null)
{
_unlockMode = newMode;
UpdateCloseDatabaseAfterFailedBiometricQuickUnlockVisibility();
ISharedPreferencesEditor edit = PreferenceManager.GetDefaultSharedPreferences(this).Edit();
edit.PutString(App.Kp2a.CurrentDb.CurrentFingerprintModePrefKey, _unlockMode.ToString());
edit.Commit();
return;
}
if (newMode == FingerprintUnlockMode.Disabled)
{
_unlockMode = newMode;
UpdateCloseDatabaseAfterFailedBiometricQuickUnlockVisibility();
StoreUnlockMode();
return;
}
_desiredUnlockMode = newMode;
FindViewById(Resource.Id.radio_buttons).Visibility = ViewStates.Gone;
UpdateCloseDatabaseAfterFailedBiometricQuickUnlockVisibility();
FindViewById(Resource.Id.fingerprint_auth_container).Visibility = ViewStates.Visible;
try
{
_enc = new BiometricEncryption(new BiometricModule(this), CurrentPreferenceKey);
if (!_enc.Init())
{
throw new Exception("Failed to initialize cipher");
}
ResetErrorTextRunnable();
_enc.StartListening(new BiometricAuthCallbackAdapter(this, this));
}
catch (Exception e)
{
CheckCurrentRadioButton();
Toast.MakeText(this, e.ToString(), ToastLength.Long).Show();
FindViewById(Resource.Id.radio_buttons).Visibility = ViewStates.Visible;
FindViewById(Resource.Id.fingerprint_auth_container).Visibility = ViewStates.Gone;
}
}
protected override void OnCreate(Bundle savedInstanceState)
{
_activityDesign.ApplyTheme();
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.fingerprint_setup);
Enum.TryParse(
PreferenceManager.GetDefaultSharedPreferences(this).GetString(App.Kp2a.CurrentDb.CurrentFingerprintModePrefKey, ""),
out _unlockMode);
_fpIcon = FindViewById <ImageView>(Resource.Id.fingerprint_icon);
_fpTextView = FindViewById <TextView>(Resource.Id.fingerprint_status);
SupportActionBar.SetDisplayHomeAsUpEnabled(true);
SupportActionBar.SetHomeButtonEnabled(true);
int[] radioButtonIds =
{
Resource.Id.radio_fingerprint_quickunlock, Resource.Id.radio_fingerprint_unlock,
Resource.Id.radio_fingerprint_disabled
};
_radioButtons = radioButtonIds.Select(FindViewById <RadioButton>).ToArray();
_radioButtons[0].Tag = FingerprintUnlockMode.QuickUnlock.ToString();
_radioButtons[1].Tag = FingerprintUnlockMode.FullUnlock.ToString();
_radioButtons[2].Tag = FingerprintUnlockMode.Disabled.ToString();
foreach (RadioButton r in _radioButtons)
{
r.CheckedChange += (sender, args) =>
{
var rbSender = ((RadioButton)sender);
if (!rbSender.Checked)
{
return;
}
foreach (RadioButton rOther in _radioButtons)
{
if (rOther == sender)
{
continue;
}
rOther.Checked = false;
}
FingerprintUnlockMode newMode;
Enum.TryParse(rbSender.Tag.ToString(), out newMode);
ChangeUnlockMode(_unlockMode, newMode);
};
}
CheckCurrentRadioButton();
int errorId = Resource.String.fingerprint_os_error;
SetError(errorId);
FindViewById(Resource.Id.cancel_button).Click += (sender, args) =>
{
_enc.StopListening();
_unlockMode = FingerprintUnlockMode.Disabled; //cancelling a FingerprintEncryption means a new key has been created but not been authenticated to encrypt something. We can't keep the previous state.
StoreUnlockMode();
FindViewById(Resource.Id.radio_buttons).Visibility = ViewStates.Visible;
FindViewById(Resource.Id.fingerprint_auth_container).Visibility = ViewStates.Gone;
_enc = null;
CheckCurrentRadioButton();
};
FindViewById(Resource.Id.radio_buttons).Visibility = ViewStates.Gone;
FindViewById(Resource.Id.fingerprint_auth_container).Visibility = ViewStates.Gone;
FindViewById <CheckBox>(Resource.Id.close_database_after_failed).Checked =
Util.GetCloseDatabaseAfterFailedBiometricQuickUnlock(this);
FindViewById <CheckBox>(Resource.Id.close_database_after_failed).CheckedChange += (sender, args) =>
{
PreferenceManager.GetDefaultSharedPreferences(this)
.Edit()
.PutBoolean(GetString(Resource.String.CloseDatabaseAfterFailedBiometricQuickUnlock_key), args.IsChecked)
.Commit();
};
UpdateCloseDatabaseAfterFailedBiometricQuickUnlockVisibility();
}
