我正在尝试使用Retrofit和RxJava在正在处理的应用程序的自定义视图中进行API调用,但是尝试从Retrofit API调用订阅Observable时遇到类型不兼容的错误。 / p>
ApiService
public interface ApiService {
@GET("airline-tickets.php")
Observable<List<Ticket>> getStarredRepositories();
}
ApiClient
public class ApiClient {
private static final String GITHUB_BASE_URL = "https://api.androidhive.info/json/";
private ApiService apiService;
private static ApiClient instance;
public ApiClient() {
final Retrofit retrofit = new Retrofit.Builder()
.baseUrl(GITHUB_BASE_URL)
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.build();
apiService = retrofit.create(ApiService.class);
}
public static ApiClient getInstance() {
if (instance == null) {
instance = new ApiClient();
}
return instance;
}
public Observable<List<Ticket>> getStarredRepos() {
return apiService.getStarredRepositories();
}
}
MainActivity
public class MainActivity extends AppCompatActivity {
private static final String TAG = MainActivity.class.getName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Subscription subscription= (Subscription) ApiClient.getInstance()
.getStarredRepos()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<List<Ticket>>() {
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(List<Ticket> tickets) {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onComplete() {
}
});
}
}
这部分代码显示不可转换的类型;无法将'void'强制转换为'org.reactivestreams.Subscription
Subscription subscription= (Subscription) ApiClient.getInstance()
.getStarredRepos()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<List<Ticket>>() {
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(List<Ticket> tickets) {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onComplete() {
}
});
答案 0 :(得分:1)
使用subscribeWith
返回您传递给该方法的Observer
。您可能正在使用旧的RxJava 1代码。 RxJava 2 API有所更改。 Observable
现在接受Observer
,您应该将Subscription
更改为Observer