bondDeviceAtAddress method

Future<bool?> bondDeviceAtAddress(String address, { String? pin, bool? passkeyConfirm, })

Starts outgoing bonding (pairing) with device with given address. Returns true if bonded, false if canceled or failed gracefully.

pin or passkeyConfirm could be used to automate the bonding process, using provided pin or confirmation if necessary. Can be used only if no pairing request handler is already registered.

Note: passkeyConfirm will probably not work, since 3rd party apps cannot get BLUETOOTH_PRIVILEGED permission (at least on newest Androids).

Implementation

Future<bool?> bondDeviceAtAddress(String address,
    {String? pin, bool? passkeyConfirm}) async {
  if (pin != null || passkeyConfirm != null) {
    if (_pairingRequestHandler != null) {
      throw "pairing request handler already registered";
    }
    setPairingRequestHandler((BluetoothPairingRequest request) async {
      Future.delayed(Duration(seconds: 1), () {
        setPairingRequestHandler(null);
      });
      if (pin != null) {
        switch (request.pairingVariant) {
          case PairingVariant.Pin:
            return pin;
          default:
            // Other pairing variant requested, ignoring pin
            break;
        }
      }
      if (passkeyConfirm != null) {
        switch (request.pairingVariant) {
          case PairingVariant.Consent:
          case PairingVariant.PasskeyConfirmation:
            return passkeyConfirm;
          default:
            // Other pairing variant requested, ignoring confirming
            break;
        }
      }
      // Other pairing variant used, cannot automate
      return null;
    });
  }
  return await _methodChannel
      .invokeMethod('bondDevice', {"address": address});
}