android - 如何自动化生物特征识别，如人脸识别和指纹？

Question

所以我正在尝试端到端自动化应用程序，它涉及面部识别来存储用户的照片。用户可以使用前置摄像头/后置摄像头，并在几秒钟内检测到面部特征并将其存储。是否有任何工具可用于验证此功能，或者我应该只使用存根来验证集成？

score 0 · Accepted Answer

实现'androidx.biometric：biometric：1.0.1'

 private Executor executor;
    private BiometricPrompt biometricPrompt;
    private BiometricPrompt.PromptInfo promptInfo;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);



      /*  BiometricManager biometricManager = BiometricManager.from(this);
        switch (biometricManager.canAuthenticate()) {
            case BiometricManager.BIOMETRIC_SUCCESS:
                Log.d("MY_APP_TAG", "App can authenticate using biometrics.");
                break;
            case BiometricManager.BIOMETRIC_ERROR_NO_HARDWARE:
                Log.e("MY_APP_TAG", "No biometric features available on this device.");
                break;
            case BiometricManager.BIOMETRIC_ERROR_HW_UNAVAILABLE:
                Log.e("MY_APP_TAG", "Biometric features are currently unavailable.");
                break;
            case BiometricManager.BIOMETRIC_ERROR_NONE_ENROLLED:
                Log.e("MY_APP_TAG", "The user hasn't associated " +
                        "any biometric credentials with their account.");
                break;
        }*/


                executor = ContextCompat.getMainExecutor(this);
        biometricPrompt = new BiometricPrompt(MainActivity.this,
                executor, new BiometricPrompt.AuthenticationCallback() {
            @Override
            public void onAuthenticationError(int errorCode,
                                              @NonNull CharSequence errString) {
                super.onAuthenticationError(errorCode, errString);
                Toast.makeText(getApplicationContext(),
                        "Authentication error: " + errString, Toast.LENGTH_SHORT)
                        .show();
            }

            @Override
            public void onAuthenticationSucceeded(
                    @NonNull BiometricPrompt.AuthenticationResult result) {
                super.onAuthenticationSucceeded(result);
                Toast.makeText(getApplicationContext(),
                        "Authentication succeeded!", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onAuthenticationFailed() {
                super.onAuthenticationFailed();
                Toast.makeText(getApplicationContext(), "Authentication failed",
                        Toast.LENGTH_SHORT)
                        .show();
            }
        });

        promptInfo = new BiometricPrompt.PromptInfo.Builder()
                .setTitle("Biometric login for my app")
                .setSubtitle("Log in using your biometric credential")
                .setNegativeButtonText("Use account password")
                .build();

        // Prompt appears when user clicks "Log in".
        // Consider integrating with the keystore to unlock cryptographic operations,
        // if needed by your app.
        Button biometricLoginButton = findViewById(R.id.biometric_login);
        biometricLoginButton.setOnClickListener(view -> {
            biometricPrompt.authenticate(promptInfo);
        });
    }