Handling lists with RxJava and Retrofit in android

Handling lists with RxJava and Retrofit in android

By : user2949558
Date : November 17 2020, 01:00 AM
this one helps. RxJava has added flatMapIterable. So you don't need flattenList now. E.g.,
code :
  Observable<UserWrapper> o =
       .flatMap(user -> getItems(user.getUserName())
                        .flatMapIterable(items -> items)
                        .flatMap(item -> getItemInfo(item.getId()))
                        .map(ignored -> user))
        .flatMap(user -> getFriends(user.getUserName())
                         .flatMapIterable(friends -> friends)
                         .map(ignored -> user)

Share : facebook icon twitter icon
Android rxJava Error handling with retrofit

Android rxJava Error handling with retrofit

By : user2991156
Date : March 29 2020, 07:55 AM
hope this fix your issue It looks like you may be running into an issue has been fixed as of RxJava 1.0:
TrampolineScheduler NullPointerException
Retrofit 2 + Rxjava handling error

Retrofit 2 + Rxjava handling error

By : Cordova Labs
Date : March 29 2020, 07:55 AM
will help you I found a solution, I have a application class that Creates a Retrofit and then i just created a ResponseBody and converted using responseBodyConverter(,)
code :
                public void onError(Throwable e) {
                    if (e instanceof HttpException) {
                        ResponseBody body = ((HttpException) e).response().errorBody();

                        Converter<ResponseBody, Error> errorConverter =
                            application.getRetrofit().responseBodyConverter(Error.class, new Annotation[0]);
                    // Convert the error body into our Error type.
                        try {
                            Error error = errorConverter.convert(body);
                            Log.i("","ERROR: " + error.message);
                        } catch (IOException e1) {

                static class Error{
                String message;
Handling different flows with RxJava and Retrofit

Handling different flows with RxJava and Retrofit

By : Abdallah Omar
Date : March 29 2020, 07:55 AM
To fix the issue you can do I use a Data wrapper class for passing things between the different layers of the application. For your case I'd have something like:
code :
public class Data<T> {

    public static final int LOADING = 0;
    public static final int SUCCESS = 1;
    public static final int NO_CHANGE = 2;
    public static final int ERROR = 3;

    public final int status;
    public final T result;
    public final DataError error;

    public Data(int status, T result, DataError error) {
        this.status = status;
        this.result = result;
        this.error = error;
public static <R> Data<R> success(R result) {
    return new Data<>(SUCCESS, result, null);

public static <R> Data<R> noChange(R result) {
    return new Data<>(NO_CHANGE, result , null);
public Observable<Data<List<Dog>>> getAllDogs() {
        .map(new Func1<Response<List<Dog>>, Data<List<Dog>>>() {
            public Data<List<Dog>> call(Response<List<Dog>> serverSideResponse) {

                if (serverSideResponse.getCode() == 304) {
                    return Data.noChange(serverSideResponse.getBody());
                } else {
                    return Data.success(serverSideResponse.getBody());
public void onNext(Data<List<Dog>> data) {

    if (result.status == SUCCESS)

    if (result.status == NO_CHANGE) {

    if (result.status == ERROR) {
Android Kotlin RxJava Retrofit - Json object that has lists as attributes expected BEGIN_ARRAY but was BEGIN_OBJECT

Android Kotlin RxJava Retrofit - Json object that has lists as attributes expected BEGIN_ARRAY but was BEGIN_OBJECT

By : Satish Pati
Date : March 29 2020, 07:55 AM
I hope this helps you . If the API created by conventions than persons/{personId} should return Person object instead of list of Persons. So I assume you should replace
code :
fun getPerson(@Path("personId") id: Int): Observable<List<Person>>
fun getPerson(@Path("personId") id: Int): Observable<Person>
Error Handling of Rxjava in mvvm using retrofit

Error Handling of Rxjava in mvvm using retrofit

By : user3674735
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I am calling one api which gives Http status code 400 , man, you're asking for many questions in 1.
code :
fun getWordCountList() {
courseRepository.wordCount()?.subscribe { resource -> getWordCountLiveData().postValue(resource) }
    successResponse -> // handle success
{ error -> // handle error
Related Posts Related Posts :
  • How to combine java native within the XML android and dart Flutter
  • Intercept the outgoing call data, alter it & then write it back out- Why it is not possible?- Android
  • Bundle extra sends wrong string
  • Display a view using windowmanager on lock screen
  • is it possible to load images from the directory on web server?
  • android SDK manager, only show installed package
  • How to handle time zone difference between server and native android application?
  • ViewPager PagerAdapter delete items
  • How to solve different Preview/Picture sizes returned by android.hardware.camera?
  • How to get songs from album/Artist in android,using MediametadataRetriever?
  • Android UIAutomator how to tilt device
  • DialogFragment issues with screen orientation and MediaController
  • blank screen after re-starting launcher activity (failed binder transaction)
  • How to start activity Language and input
  • location-based Augmented Reality Framework (Android, iOS) with 3D Models?
  • android teamviewer intent with parameters
  • Picasso does not call onBitmapLoaded for the first time
  • How can I pass an audio file as input instead of recorded voice to Google search voice?
  • How to set `ImageView`'s height to match it's width while `layout_weight` is set?
  • How to run a task once, only on installing, on android
  • ADT - Android SDK manager shows update installed with a red mark
  • Android: how to show two activity in one window using java code (not using .xml)
  • How to do independently scrolling rows and columns (a la Netflix app) on Android in a WebView?
  • Sending Data between Activities in Android periodically.
  • Classcastexception achartengine
  • Google Play shows no supported devices
  • OkHttp3 is returning timeout exception
  • What is the best camera parameters for android camera opened in surface view
  • how do i update the database table on the basis of checkbox/unchecked
  • Placeholder for contacts without name in listview
  • Storing username and password in plain text
  • Android Material default colors
  • Android studio importing in gradle issue
  • syntax error (code 1): , while compiling: CREATE TABLE
  • different behavior of app when signed with production key
  • Prevent softkeyboard dismiss on the android back button press
  • can't instantiate class... no empty constructor
  • Image Quality degrading after getting bitmap from internet and setting it to a Image View
  • Home Icon is not showing next to Hamburger icon in ActionBar
  • Layout issue with Toolbar
  • Prevent my android:theme from modifying dialogs?
  • Facebook login with Parse always returns false in user.isNew() Android
  • I get NullPointerException in an Android animation?
  • Things move out of place on different screen sizes
  • android database: the method open() is undefined for the type databasehelper class
  • sending intent with a parcelable extra from widget crashes on activity startup
  • How to record a video less than 10 mb using Android
  • Android - serialize object to pass it over Bluetooth NotSerializableException
  • Facebook Login Button Android in Eclipse
  • Null pointer exception on adding a marker to google maps
  • Jackson : Can not deserialize instance of java.util.ArrayList out of VALUE_TRUE token
  • How to customize PagerTitleStrip android
  • Click event not being captured for ListView items with HorizontalScrollView
  • HAX kernel module is not installed
  • Android: signed watchface on Android Wear 5.0 not installed
  • Dialog Builder in PreferenceFragment
  • HttpClient change UserAgent
  • Numerous 'No resource found' and 'Error retrieving parent' in Android Project
  • Get call log of a particular number
  • Invalid "--android-sdk" value "C:\android-sdk-win" in Titanium while deploying app on android mobile
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org