class DeviceListPresenterImpl implements DeviceListPresenter {

    @Override
    public void startBluetooth() {
        RLog.e();
        // create subject
        createSubject();

        createScanCallback();

        createBluetoothLeAdapter();
        // checkpermission
        checkPermission();

    }

    public  DeviceListPresenterImpl(DeviceListPresenter.View view);

}