Пользовательский ввод с последующей проверкой отпечатков пальцев Android
Я хочу сделать приложение, в котором оно запрашивает номер aadhar, проверяет номер и проверяет отпечаток пальца пользователя. Я проверил проверку фиктивного номера aadhar и проверку отпечатков пальцев по отдельности, все работает нормально. Но если я хочу объединить их обоих, это не работает желаемым образом.
вот код:
public class MainActivityAadharNumber extends AppCompatActivity implements MainView, Button.OnClickListener, AadharEnterAmountView {
//copied variables
private KeyStore keyStore;
// Variable used for storing the key in the Android Keystore container
private static final String KEY_NAME = "androidHive";
private Cipher cipher;
boolean fingerprintResult = false;
boolean amountNumberSuccess = false;
private AadharPresenterImpl aadharPresenter;
private PresenterAadharAmountImplementation aadharPresenterImpl;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_aadhar_input);
aadharPresenter = new AadharPresenterImpl(this);
aadharPresenterImpl = new PresenterAadharAmountImplementation(this);
Button button = (Button) findViewById(R.id.button_next);
button.setOnClickListener(this);
fingerprintValidation();
// fingerprint validation function to validate the fingerprint
//fingerprintValidation();
}
@TargetApi(Build.VERSION_CODES.M)
protected void generateKey() {
try {
keyStore = KeyStore.getInstance("AndroidKeyStore");
} catch (Exception e) {
e.printStackTrace();
}
KeyGenerator keyGenerator;
try {
keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
} catch (NoSuchAlgorithmException | NoSuchProviderException e) {
throw new RuntimeException("Failed to get KeyGenerator instance", e);
}
try {
keyStore.load(null);
keyGenerator.init(new
KeyGenParameterSpec.Builder(KEY_NAME,
KeyProperties.PURPOSE_ENCRYPT |
KeyProperties.PURPOSE_DECRYPT)
.setBlockModes(KeyProperties.BLOCK_MODE_CBC)
.setUserAuthenticationRequired(true)
.setEncryptionPaddings(
KeyProperties.ENCRYPTION_PADDING_PKCS7)
.build());
keyGenerator.generateKey();
} catch (NoSuchAlgorithmException |
InvalidAlgorithmParameterException
| CertificateException | IOException e) {
throw new RuntimeException(e);
}
}
@TargetApi(Build.VERSION_CODES.M)
public boolean cipherInit() {
try {
cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw new RuntimeException("Failed to get Cipher", e);
}
try {
keyStore.load(null);
SecretKey key = (SecretKey) keyStore.getKey(KEY_NAME,
null);
cipher.init(Cipher.ENCRYPT_MODE, key);
return true;
} catch (KeyPermanentlyInvalidatedException e) {
return false;
} catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException | NoSuchAlgorithmException | InvalidKeyException e) {
throw new RuntimeException("Failed to init Cipher", e);
}
}
/**
* This function performs the validation check with the presenter when the submit button is clicked
* @param v
*/
@Override
public void onClick(View v) {
if(validateAmountAndAadhar() )
{
//Toast.makeText(this, "fingerprint enter", Toast.LENGTH_SHORT).show();
//fingerprintValidation();
//if(fingerprintResult)
//
startActivity(new Intent(this,AuthSuccessActivity.class));
}
else{
Toast.makeText(this, "fingerprint error & amount error", Toast.LENGTH_SHORT).show();
}
}
@Override
public void showValidationError() {
//show validationError message
Toast.makeText(this, "check for the addhar number correctness", Toast.LENGTH_SHORT).show();
}
@Override
public void onValidationSuccess() {
Toast.makeText(this, "Aadhar validated successfully", Toast.LENGTH_SHORT).show();
}
@Override
public void onCorrectAmount() {
Toast.makeText(this, "correct amount entered", Toast.LENGTH_SHORT).show();
}
@Override
public void inValidAmount() {
Toast.makeText(this, "check the amount entered", Toast.LENGTH_SHORT).show();
}
@Override
public void onBackPressed() {
Toast.makeText(this, "back press not allowed", Toast.LENGTH_SHORT).show();
}
public boolean validateAmountAndAadhar()
{
EditText aadharNumber, aadharAmount;
TextInputLayout aadharAmountTextInputLayout, aadharNumberTextInputLayout;
//ImageView initialFingerPrintImage;
aadharNumber = (EditText) findViewById(R.id.aadharnumberAnimatededitText);
aadharAmount = (EditText) findViewById(R.id.aadharAmountAnimatededitText);
aadharNumberTextInputLayout = (TextInputLayout) findViewById(R.id.aadhar_number_TextView_id);
aadharNumberTextInputLayout.setHint("aadhar number");
aadharAmountTextInputLayout = (TextInputLayout) findViewById(R.id.aadhar_amount_TextView_id);
aadharAmountTextInputLayout.setHint("amount");
// initialFingerPrintImage = (ImageView) findViewById(R.id.img_finger_print);
boolean aadharValidatedNumber = aadharPresenter.aadharNumberValidator(aadharNumber.getText().toString());
boolean aadharAmountValidator = aadharPresenterImpl.aadharAmountValidator(aadharAmount.getText().toString());
if (aadharValidatedNumber && aadharAmountValidator ) {
amountNumberSuccess = true;
aadharAmountTextInputLayout.setError(null);
aadharNumberTextInputLayout.setError(null);
return true;
}
// initialFingerPrintImage.setBackgroundResource(R.drawable.finger_print_success);
// Intent intent = new Intent(getApplicationContext(), ActivityFingerPrint.class);
//startActivity(intent);
else {
// multiple IF-else block to catch the possible error outcomes
if (!aadharAmountValidator && aadharValidatedNumber ) {
Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake);
aadharAmount.startAnimation(shake);
aadharNumberTextInputLayout.setError(null);
aadharAmountTextInputLayout.setError("enter the correct amount");
} else {
if (aadharAmountValidator && !aadharValidatedNumber) {
Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake);
aadharNumber.startAnimation(shake);
aadharAmountTextInputLayout.setError(null);
aadharNumberTextInputLayout.setError("enter correct Aadhar");
} else {
if (!aadharAmountValidator && !aadharValidatedNumber) {
Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake);
aadharNumber.startAnimation(shake);
aadharAmount.startAnimation(shake);
aadharAmountTextInputLayout.setError("enter correct amount");
aadharNumberTextInputLayout.setError("enter correct aadhar");
}
}
}
// initialFingerPrintImage.setBackgroundResource(R.drawable.finger_print_failure);
// Toast.makeText(this,"cannot start the activity",Toast.LENGTH_SHORT).show();
return false;
}
}
public void fingerprintValidation()
{
//begining of the code copu
KeyguardManager keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
FingerprintManager fingerprintManager = (FingerprintManager) getSystemService(FINGERPRINT_SERVICE);
TextView textView;
textView = (TextView) findViewById(R.id.textView);
// Check whether the device has a Fingerprint sensor.
if (!fingerprintManager.isHardwareDetected()) {
/**
* An error message will be displayed if the device does not contain the fingerprint hardware.
* However if you plan to implement a default authentication method,
* you can redirect the user to a default authentication activity from here.
* Example:
* Intent intent = new Intent(this, DefaultAuthenticationActivity.class);
* startActivity(intent);
*/
textView.setText("Your Device does not have a Fingerprint Sensor");
} else {
// Checks whether fingerprint permission is set on manifest
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
textView.setText("Fingerprint authentication permission not enabled");
} else {
// Check whether at least one fingerprint is registered
if (!fingerprintManager.hasEnrolledFingerprints()) {
textView.setText("Register at least one fingerprint in Settings");
} else {
// Checks whether lock screen security is enabled or not
if (!keyguardManager.isKeyguardSecure()) {
textView.setText("Lock screen security not enabled in Settings");
} else {
generateKey();
if (cipherInit()) {
if (amountNumberSuccess) {
FingerprintManager.CryptoObject cryptoObject = new FingerprintManager.CryptoObject(cipher);
FingerprintHandler helper = new FingerprintHandler(this);
helper.startAuth(fingerprintManager, cryptoObject);
fingerprintResult = true;
}
}
}
}
}
}
}
}
В этом я хочу ввести сумму, число aadhar, если оба верны, то я хочу прослушать отпечаток пальца пользователя. После успешной проверки они должны перенаправить на следующую страницу. Пожалуйста, помогите мне с этим
1 ответ
Я нашел решение для этого, ответ так прост: в классе FingerprintHandler создайте статическую переменную mfingerprintAuth = false, а внутри метода onAuthenticationSucceeded(FingerprintManager.AuthenticationResult) определите mfingerprintAuth = true, получите его в mainActivity, например FingerprintHandler.mfingerprintAuth и сделать необходимую проверку.