在Android应用程序中注册用户指纹

Question

我想制作一个Android应用程序，该应用程序注册用户指纹（从设备的指纹扫描仪中获取）并将其存储在数据结构或密钥存储提供程序中，下一次用户放置指纹扫描仪时，应该从存储在数据中的指纹进行身份验证结构或来自android keystore provider。如果有人可以帮助我如何解决这个问题。提前致谢。

Answer 1

抱歉，据我所知，无法注册指纹。用户应在设置中注册他/她的手指。您只需检查用户指纹即可进行身份验证。如果没有注册手指或没有指纹传感器，轻松烘烤它。

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//Check whether the device has a fingerprint sensor//\n        if (!mFingerprintManager.isHardwareDetected()) {\n            // If a fingerprint sensor isn\xe2\x80\x99t available, then inform the user that they\xe2\x80\x99ll be unable to use your app\xe2\x80\x99s fingerprint functionality//\n            textView.setText("Your device doesn\'t support fingerprint authentication");\n        }\n        //Check whether the user has granted your app the USE_FINGERPRINT permission//\n        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {\n            // If your app doesn\'t have this permission, then display the following text//\n            Toast.makeText(EnterPinActivity.this, "Please enable the fingerprint permission", Toast.LENGTH_LONG).show();\n        }\n\n        //Check that the user has registered at least one fingerprint//\n        if (!mFingerprintManager.hasEnrolledFingerprints()) {\n            // If the user hasn\xe2\x80\x99t configured any fingerprints, then display the following message//\n            Toast.makeText(EnterPinActivity.this, "No fingerprint configured. Please register at least one fingerprint in your device\'s Settings", Toast.LENGTH_LONG).show();\n        }\n\n        //Check that the lockscreen is secured//\n        if (!mKeyguardManager.isKeyguardSecure()) {\n            // If the user hasn\xe2\x80\x99t secured their lockscreen with a PIN password or pattern, then display the following text//\n            Toast.makeText(EnterPinActivity.this, "Please enable lockscreen security in your device\'s Settings", Toast.LENGTH_LONG).show();\n        }\n

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查看本教程以了解如何检查用户指纹：

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链接 1 \n链接 2

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