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public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";
    NsdManager mNsdManager;
    public String mServiceName = "serviceName";
    public static final String SERVICE_TYPE = "_http._tcp.";
    NsdServiceInfo mService;
    MyDiscoveryListener discoveryListener;
    RecyclerView applianceListView;
    ApplianceAdapter applianceAdapter;

maydin

public class MyDiscoveryListener implements NsdManager.DiscoveryListener {

    private static final String TAG = "MyDiscoveryListener";
    public static final String SERVICE_TYPE = "_http._tcp.";
    String mServiceName;
    NsdManager mNsdManager;
    MainActivity activity;

    public MyDiscoveryListener(String mServiceName,NsdManager mNsdManager,MainActivity activity)
    {

maydin

public class ApplianceAdapter extends
        RecyclerView.Adapter<ApplianceAdapter.ViewHolder> {

    private List<Appliance> applianceList;
    private Context mContext;

    public ApplianceAdapter(Context context, List<Appliance> applianceList) {
        this.applianceList = applianceList;
        this.mContext = context;
    }

maydin

public class ApplianceAdapter extends
        RecyclerView.Adapter<ApplianceAdapter.ViewHolder> {

    private List<Appliance> applianceList;
    private Context mContext;

    public ApplianceAdapter(Context context, List<Appliance> applianceList) {
        this.applianceList = applianceList;
        this.mContext = context;
    }

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public class RxDiscoveryManager {

    final NsdManager mNsdManager;
    public static final String SERVICE_TYPE = "_http._tcp.";

    public RxDiscoveryManager(NsdManager mNsdManager)
    {
        this.mNsdManager = mNsdManager;
    }

maydin

public class MainActivity extends AppCompatActivity implements rx.functions.Action1<Appliance>{

    RecyclerView applianceListView;
    ApplianceAdapter applianceAdapter;
    private Subscription rxSensorSubscriptionAsync;
    private RxDiscoveryManager rxDiscoveryManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

maydin

public class App extends Application {
  private DiscoveryComponent component;

  @Override
  public void onCreate() {
    super.onCreate();
    component = DaggerDiscoveryComponent.builder()
                            .discoveryModule(new DiscoveryModule(this))
                            .build();
  }

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@Singleton
@Component(modules = {DiscoveryModule.class})
public interface DiscoveryComponent {

  void inject(MainActivity activity);
  void inject(SecondActivity activity);
}

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public class MainActivity extends AppCompatActivity implements rx.functions.Action1<Appliance> {

    RecyclerView applianceListView;
    ApplianceAdapter applianceAdapter;
    private Subscription rxSensorSubscriptionAsync;

    @Inject
    RxDiscoveryManager rxDiscoveryManager;

    @Override

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@Module
public class DiscoveryModule {
        private final Context context;

        public DiscoveryModule(Context context) {
            this.context = context;
        }

        @Provides
        @Singleton