How to use

isHardwareDetected

method

in

android.support.v4.hardware.fingerprint.FingerprintManagerCompat

if (!managerCompat.isHardwareDetected()) { //判断设备是否支持
  if (listener != null)
    listener.onSupportFailed();

public boolean isFingerprintAuthAvailable() {
  // The line below prevents the false positive inspection from Android Studio
  // noinspection ResourceType
  return mFingerprintManager.isHardwareDetected()
      && mFingerprintManager.hasEnrolledFingerprints();
}

  /**
   * Check if the device have supported hardware fir the finger print scanner.
   *
   * @param context instance of the caller.
   * @return true if device have the hardware.
   */
  public static boolean isSupportedHardware(Context context) {
    FingerprintManagerCompat fingerprintManager = FingerprintManagerCompat.from(context);
    return fingerprintManager.isHardwareDetected();
  }
}

public boolean isFingerprintAuthAvailable() {
  return mFingerprintManager.isHardwareDetected()
      && mFingerprintManager.hasEnrolledFingerprints();
}

private boolean isFingerprintApiAvailable(Context context) {
  return FingerprintManagerCompat.from(context).isHardwareDetected();
}

private boolean isFingerPrintAvailable(Context context) {
  return FingerprintManagerCompat.from(context).isHardwareDetected();
}

if (!fingerprintManager.isHardwareDetected()) {

/**
 * Check if the finger print hardware is available.
 *
 * @param context instance of the caller.
 * @return true if finger print authentication is supported.
 */
private boolean checkFingerPrintAvailability(@NonNull Context context) {
  // Check if we're running on Android 6.0 (M) or higher
  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    //Fingerprint API only available on from Android 6.0 (M)
    FingerprintManagerCompat fingerprintManager = FingerprintManagerCompat.from(context);
    if (!fingerprintManager.isHardwareDetected()) {
      // Device doesn't support fingerprint authentication
      mCallback.onNoFingerPrintHardwareFound();
      return false;
    } else if (!fingerprintManager.hasEnrolledFingerprints()) {
      // User hasn't enrolled any fingerprints to authenticate with
      mCallback.onNoFingerPrintRegistered();
      return false;
    }
    return true;
  } else {
    mCallback.onBelowMarshmallow();
    return false;
  }
}