public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        rxpref=(TextView)view.findViewById(R.id.rxpref);



        final SharedPreferences sharedPreferences = getActivity().getSharedPreferences("prefs", Context.MODE_PRIVATE);
        final RxSharedPreferences_java rxShared = RxSharedPreferences_java.with(sharedPreferences);

        rxShared.putString("dev", "Soussi")
                .flatMap( name-> rxShared.putString("name", "soussi"))
                .flatMap(email -> rxShared.putString("email", "soussi.mohamed747@gmail.com"))
                .flatMap(phone -> rxShared.putInteger("tel", 55055055))
                .flatMap(post -> rxShared.putString("post", "dev android"))

                .flatMap(post -> rxShared.getAll())
                .flatMap(stringMap -> Observable.fromIterable(stringMap.entrySet()))
                .map(Object::toString)

               // .subscribe(s -> Log.d("TAG 1", s)
                .subscribe(s -> textlog1="Subscribe :"+s+"\n"
                );

        rxShared.getInt("tel", 0)
                .subscribe(tel -> {
                    //display phone
                    Log.d("TAG 2", "phone: " + tel);
                    textlog2="phone :"+tel+"\n";
                });

        Observable.just(new Admin())
                .flatMap(user -> rxShared.getInt("id", 0), (admin, id) -> {
                    admin.setId(id);
                    return admin;
                })
                .flatMap(admin -> rxShared.getString("name", ""), (admin, name) -> {
                    admin.setName(name);
                    return admin;
                })

                .flatMap(admin -> rxShared.getString("post", ""), (admin, post) -> {
                    admin.setPost(post);
                    return admin;
                })

                .flatMap(admin -> rxShared.getString("email", ""), (admin, email) -> {
                    admin.setEmail(email);
                    return admin;
                })

                .flatMap(admin -> rxShared.getInt("tel", 0), (admin, phone) -> {
                    admin.setTel(phone);
                    return admin;
                })

                .subscribe(admin -> {
                    //display admin
                    Log.d("TAG 3", admin.toString());
                    Log.d("TAG 4", admin.getEmail());
                    Log.d("TAG 5", admin.getTel().toString());

                    textlog3="admin :"+admin.toString()+"\n";
                    textlog4="admin email :"+admin.getEmail()+"\n";
                    textlog5="admin phone :"+admin.getTel().toString()+"\n";
                    textlog6="admin post :"+admin.getPost().toString()+"\n";

                });

        rxpref.setText(get_data());
    }
    public String get_data()
    {
        sb =new StringBuilder();
        sb.append(textlog1);
        sb.append("\n");
        sb.append(textlog2);
        sb.append("\n");
        sb.append(textlog3);
        sb.append("\n");
        sb.append(textlog4);
        sb.append("\n");
        sb.append(textlog5);
        sb.append("\n");
        sb.append(textlog6);
        return sb.toString();
    }

 @Override
    public void onResume() {
        super.onResume();

        networkDisposable = ReactiveNetwork.observeNetworkConnectivity(getActivity())
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(connectivity -> {
                    Log.d(TAG, connectivity.toString());
                    final NetworkInfo.State state = connectivity.getState();
                    final String name = connectivity.getTypeName();
                    tvConnectivityStatus.setText(String.format("state: %s, typeName: %s", state, name));
                });

        internetDisposable = ReactiveNetwork.observeInternetConnectivity()
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(isConnected -> tvInternetStatus.setText(isConnected.toString()));
    }

    @Override
    public void onPause() {
        super.onPause();
        safelyDispose(networkDisposable, internetDisposable);
    }

    private void safelyDispose(Disposable... disposables) {
        for (Disposable subscription : disposables) {
            if (subscription != null && !subscription.isDisposed()) {
                subscription.dispose();
            }
        }
    }

 private void getResultActivity()
    {
        final Intent intent = new Intent(getActivity(), Result.class);

        RxActivityResultCompact.startActivityForResult(this, intent, REQUEST_CODE)
                .subscribe(new Consumer<ActivityResult>() {
                    @Override
                    public void accept(@NonNull ActivityResult result) throws Exception {
                        if (result.isOk()) {
                            final String txt = result.getData().getStringExtra(Result.GET_TEXT);
                            textresult.setText(txt);
                        }
                    }
                });

    }

private Intent data = new Intent();

data.putExtra(GET_TEXT, "Service is Disable");
setResult(Activity.RESULT_OK, data);