Android Tutorial => Retrofit2 with RxJava

Example

First, add relevant dependencies into the build.gradle file.

dependencies {
    ....
    compile 'com.squareup.retrofit2:retrofit:2.3.0'
    compile 'com.squareup.retrofit2:converter-gson:2.3.0'
    compile 'com.squareup.retrofit2:adapter-rxjava:2.3.0'
    ....
}

Then create the model you would like to receive:

public class Server {
    public String name;
    public String url;
    public String apikey;
    public List<Site> siteList;
}

Create an interface containing methods used to exchange data with remote server:

public interface ApiServerRequests {

    @GET("api/get-servers")
    public Observable<List<Server>> getServers();
}

Then create a Retrofit instance:

public ApiRequests DeviceAPIHelper ()
{
    Gson gson = new GsonBuilder().create();

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("http://example.com/")
            .addConverterFactory(GsonConverterFactory.create(gson))
            .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
            .build();

    api = retrofit.create(ApiServerRequests.class);
    return api;
}

Then, anywhere from the code, call the method:

apiRequests.getServers()
   .subscribeOn(Schedulers.io()) // the observable is emitted on io thread
   .observerOn(AndroidSchedulers.mainThread()) // Methods needed to handle request in background thread
   .subscribe(new Subscriber<List<Server>>() {
       @Override
       public void onCompleted() {
                    
       }

       @Override
       public void onError(Throwable e) {

       }

       @Override
       public void onNext(List<Server> servers) {
           //A list of servers is fetched successfully
       }
   });

PDF - Download Android for free

Previous Next

Android

Fastest Entity Framework Extensions

Example

Got any Android Question?

Android

Android Retrofit2 with RxJava Retrofit2 with RxJava

Fastest Entity Framework Extensions

Example

Got any Android Question?