某些设备上的Android重新打印库isHardwarePresent返回False

Question

我正在使用Reprint库进行指纹身份验证。但Reprint.isHardwarePresent（）方法在某些指纹支持的设备上返回false。

if (Reprint.isHardwarePresent() && Reprint.hasFingerprintRegistered()) {
            Reprint.authenticate(new AuthenticationListener() {
                @Override
                public void onSuccess(int moduleTag) {
                    numpad.setDesc(getString(R.string.success_fingerprint));
                    startActivity(new Intent(SigninActivity.this, MainActivity.class));
                    finish();
                }

                @Override
                public void onFailure(AuthenticationFailureReason failureReason, boolean fatal, CharSequence errorMessage, int moduleTag, int errorCode) {
                    Log.d(TAG, "Fingerprint Error :"+errorMessage.toString());
                    if(prefHelper.isVibrateWhenWrong()) feedbackHelper.vibrateNorm();
                    ivFingerPrint.getDrawable().setColorFilter(getResources().getColor(R.color.colorWrong), PorterDuff.Mode.MULTIPLY );
                    new Handler().postDelayed(new Runnable() {
                        public void run() {
                            ivFingerPrint.getDrawable().clearColorFilter();
                        }
                    }, 500);
                }
            });
        }

我的第二个问题，有时Reprint.Authenticate没有开始。它记录了这个

V/FingerprintService: handleError(client=mypackagename, error = 5)

谢谢：）