可以使用Android检查指纹扫描仪

Question

如果指纹扫描仪可用，则允许用户通过使用指纹进行身份验证来使用我的应用功能。

Answer 1

试试这段代码：

FingerprintManager fingerprintManager = (FingerprintManager) context.getSystemService(Context.FINGERPRINT_SERVICE);
if (!fingerprintManager.isHardwareDetected()) { 
    // Device doesn't support fingerprint authentication     
} else if (!fingerprintManager.hasEnrolledFingerprints()) { 
    // User hasn't enrolled any fingerprints to authenticate with 
} else { 
    // Everything is ready for fingerprint authentication 
}

Answer 2

PackageManager个实例上的

Try hasSystemFeature(PackageManager.FEATURE_FINGERPRINT)（您可以通过任意方便getPackageManager()致电Context获得一个。）