Android 接入指纹识别

���入指纹框架：https://github.com/Tencent/soter

implementation 'com.github.Tencent.soter:soter-wrapper:2.0.9'

1.Application中初始化

class IApplication : Application() {    override fun onCreate() {        super.onCreate()        instance = this        initSort()   }            private fun initSort() {        val param = InitializeParamBuilder()            .setScenes(100)            .build()        SoterWrapperApi.init(this, { result ->            logDebug("$result")        }, param)    }  }

2.准备密钥

  SoterWrapperApi.prepareAuthKey(            { result ->                logDebug("init sort = $result")                if (result.errCode == SoterErrCode.ERR_OK) {                //支持指纹                    binding.llFingerPay.visibility = View.VISIBLE                } else {                    binding.llFingerPay.visibility = View.GONE                }            }, false, true, 100, null, null        )

也可以通过准备密钥结果来判断是否设备是否支持指纹

3.调起系统指纹进行验证

3.1 请求验证前获取AuthenticationParam

    private var canceller: SoterBiometricCanceller? = null    fun getAuthParam(act: AppCompatActivity?, showPassword: Boolean = true): AuthenticationParam {        canceller = SoterBiometricCanceller()        canceller!!.refreshCancellationSignal()        val param = AuthenticationParam.AuthenticationParamBuilder()            .setScene(100)            .setContext(act)            .setBiometricType(ConstantsSoter.FINGERPRINT_AUTH)            .setSoterBiometricCanceller(canceller)            //用于获取挑战因子的网络封装结构体。如果在授权之前已经通过其他模块拿到后台挑战因子，则可以改为调用setPrefilledChallenge            .setPrefilledChallenge("test1")            .setSoterBiometricStateCallback(object : SoterBiometricStateCallback {                override fun onStartAuthentication() {                  //开始验证                }                override fun onAuthenticationHelp(                    helpCode: Int,                    helpString: CharSequence?                ) {                                   }                override fun onAuthenticationSucceed() {                   //验证成功                }                override fun onAuthenticationFailed() {                   //指纹错误                }                override fun onAuthenticationCancelled() {                    //用户主动取消，可能会切换密码                                  }                override fun onAuthenticationError(                    errorCode: Int,                    errorString: CharSequence?                ) {                   //验证异常                }            }).build()        return param    }

3.2 请求验证

        SoterWrapperApi.requestAuthorizeAndSign({ result ->            if (result.isSuccess) {            //每个手指的指纹标识            val fid = result.extData.fid               //指纹验证成功            } else {            //指纹不匹配或其他错误                showFingerError(result)            }        }, authParam)

多个指纹，可以使用fid进行判断对比。

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