It's true, the point is, then it's asynchronous.AsyncTask is a good way out if it wasn't old, so this option is off.You can look towards RxJava and generally reactive programming, but I'm afraid that will make you want to be programmed)Option No. 1To create Callback's, that is, all your call.enqueue to do as a separate method and, as an argument, to give him what should be done where it is called.The approach is old, in the interior, and it's not perfect.Option No. 2Relocate to Kotlin and meet Corrutin and LiveData.You indicated the Android mark, so sooner or later you'll have to cross to Cotlin. And you've already encountered a problem that is difficult in Java, and in Kotlin's simple.

That's what I did and solved my problem:List<Route> trt = response.body().getRoutes(); for(Route rtr : trt){ List<Platform> pl = rtr.getPlatforms(); for(Platform plt : pl){ Log.d("asd", "" + plt.getLng()); String lon = String.valueOf(plt.getLng()); editText.setText("" + lon); }

Why do you have a model in front of the mass? @SerializedName("personnel_number")I think you should also consider that there are objects that you don't process. By logic, you need something like that:class PersonnelArray{ @SerializedName("personnel") private List&lt;PersonnelValue&gt; personnels; public List&lt;PersonnelValue&gt; getPersonnels() { return personnels; } } and human model:class PersonnelValue{ @SerializedName("personnel_number") @Expose private String perNum; .... public void setPersonnelNumber(Integer personnelNumber) { this.personnelNumber = personnelNumber; } public Integer getPersonnelNumber() { return personnelNumber; } } And you've all been in one class model, which is a little against your json. Next, you can get a list and go through the cycle. https://dds861.medium.com/json-arrays-parsing-using-retrofit-and-recycleview-9b2d494cc24c I hope you need to work with json masses.UPDATEThis is how the cycle goes:List myEmpls = new ArrayList(); Iterator itr = myEmpls.iterator(); while(itr.hasNext()) { PersonnelValue pobj = (PersonnelValue) itr.next(); System.out.println(pobj .getPersonnelNumber()); } P.S. The mete android-studio should be used in matters directly related to IDE. Please consider this in further matters.

In fact, after some bubble dances, I managed to solve the problem. I'm adding the work code.public class MeasurementActivity extends AppCompatActivity { Button button; ImageView imageView; public static final int MEDIA_TYPE_IMAGE = 1; private Uri fileUri; private String postPath; public static final int REQUEST_PICK_VIDEO = 1; public ProgressDialog pDialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_measurement); button = (Button) findViewById(R.id.button4); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent pickVideoIntent = new Intent(Intent.ACTION_GET_CONTENT); pickVideoIntent.setType("video/*"); startActivityForResult(pickVideoIntent, REQUEST_PICK_VIDEO); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == RESULT_OK) { if (requestCode == REQUEST_PICK_VIDEO) { if (data != null) { Toast.makeText(this, "Video content URI: " + data.getData(), Toast.LENGTH_LONG).show(); Uri video = data.getData(); uploadVideoToServer(video.getPath()); } } } else if (resultCode != RESULT_CANCELED) { Toast.makeText(this, "Sorry, there was an error!", Toast.LENGTH_LONG).show(); } } /** returning image / video */ protected void showpDialog() { if (!pDialog.isShowing()) pDialog.show(); } protected void hidepDialog() { if (pDialog.isShowing()) pDialog.dismiss(); } private void uploadVideoToServer(String pathToVideoFile){ File videoFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + pathToVideoFile); RequestBody videoBody = RequestBody.create(MediaType.parse("video/*.mp4"), videoFile); MultipartBody.Part vFile = MultipartBody.Part.createFormData("video", videoFile.getName(), videoBody); Retrofit retrofit = new Retrofit.Builder() .baseUrl("https://") .addConverterFactory(GsonConverterFactory.create()) .build(); GetData vInterface = retrofit.create(GetData.class); Call&lt;Post&gt; serverCom = vInterface.upload(videoFile); serverCom.enqueue(new Callback&lt;Post&gt;() { @Override public void onResponse(Call&lt;Post&gt; call, Response&lt;Post&gt; response) { response.code(); Toast.makeText(MeasurementActivity.this, "" + response.code(), Toast.LENGTH_LONG).show(); } @Override public void onFailure(Call&lt;Post&gt; call, Throwable t) { Toast.makeText(MeasurementActivity.this, "Попробуйте снова." + t, Toast.LENGTH_LONG).show(); } }); }}

You've got a GET request you don't want it to say:@GET("endpoint_name") fun getJokeList(): Call<List<JokeModel>> In the end, you'll have the final address:"https://api.icndb.com/jokes/random/10/endpoint_name" And now you're probably the most likely to have a request here:"https://api.icndb.com/jokes/random/10/" https://habr.com/ru/post/520544/ described how to work with Retrofit2 on the boiler. Either indicate as a parameter to the method:fun getJokeList(@Url url:String): Call<List<JokeModel>>

In fact, the interface Call this part of the implementation of the template https://ru.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BC%D0%B0%D0%BD%D0%B4%D0%B0_(%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F) ♪ I mean. Call contains all necessary parameters for the implementation of the request.Using a type object Call The request is synchronized (method) executeor asynchronous ()enqueueor maintain the facility and comply with the request later.It's part of the retrofit2, i.e. it's not part of the standard java library.

In accordance with https://square.github.io/retrofit/ the GET-request parameter can be transmitted as follows:interface ApiRequest { @GET("bridge?version=5&platform=PC") fun herList(@Query("player") player: String) : Call<TestHero> } Next, in Astiviti, we'll take it. EditText id:val nicknameView = findViewById<EditText>(R.id.nicknameEditText) Get his contents:val nickname = nicknameView.text.toString() Finally, we call for api interface, transmitting nickname as player:api.herList(nickname)

To implement my decision, thank you @woesss for the clue, evaporated the data. Mapdata class AllLegends (@SerializedName("all") val all: Map<String, LegendWrapper> = emptyMap()) data class LegendWrapper( val data: List<PlayerPerformance>? = emptyList() ) data class PlayerPerformance(val name: String, val value: Int, val key: String) data class TestList (val name: ArrayList<String>) I've put it all in RecyclerView, and I can see it. https://ru.stackoverflow.com/questions/1319937/%D0%9D%D0%B5-%D0%BF%D0%BE%D0%BB%D1%83%D1%87%D0%B0%D0%B5%D1%82%D1%81%D1%8F-%D0%BE%D1%82%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B8%D1%82%D1%8C-%D0%B2%D1%81%D0%B5-%D0%B4%D0%B0%D0%BD%D0%BD%D1%8B%D0%B5-%D0%BC%D0%B0%D1%81%D1%81%D0%B8%D0%B2%D0%B0-%D0%B2-recyclerview/1319974?noredirect=1#comment2331259_1319974

That's pretty big. https://github.com/public-apis/public-apis Api

It's not exactly the right thing to do, but without knowing the whole architecture of the application, you might be able to tell me how to get away with it:val requests = mutableListOf<Call>() for (domain in databaseResponseLiveData.value!!) { val request = DomainsAPI.retrofitDomainService.getDomainDescriptionWithRetrofit()) request.enqueue(object : Callback<String> { override fun onFailure(call: Call<String>, t: Throwable) { currentDomainLiveData.value = "ERROR" requests.forEach { it.cancel() } Timber.e("failure on ${databaseResponseLiveData.value!!.indexOf(domain)} element") Timber.e(t) } override fun onResponse(call: Call&lt;String&gt;, response: Response&lt;String&gt;) { downloadingResult[domain] = response.body()!! currentDomainLiveData.value = domain } }) requests.add(request) } As I recall, cancel() May be summoned as many times as possible and in any condition of the request.

Try to use the screwdriver, something like:public class PageWrapper { private long page; private long total; private List<CountryNetworkEntity> countries; ... //геттеры, сеттеры } And in the api method, you're the one return. PageWrapperor List<PageWrapper> (depending on what comes in your answer):public interface BankApi { @GET("country") Call<List<PageWrapper>> getCountries(@Query("format") String format, @Query("per_page") int per_page); }

The problem was the limit of API requests.

Create a viewmodel and a subscription to liveata in a method that is launched once. Like example, if you start it in a fragment, the best place for this onViewCreated. lateinit var viewModel : PriceViewModel override fun onViewCreated(view: View, savedInstanceState: Bundle?){ viewModel = ViewModelProvider(this).get(PriceViewModel::class.java) viewModel.getPriceObserver().observe(this, Observer<RealTimePriceModel> { it -> if(it != null) { Log.d(TAG, it.toString()) } else { Log.e(TAG, "Error in fetching data") } }) } fun getRealTimePrice(input: String) { viewModel.makeApiCall(input) }

Upon receipt of the response, modify the objects. Pseudocod:// Поле в Activity Map<String, Response1> result = new ConcurrentHashMap<>(); onResponse(Response<List<Response1>> response)){ for(r: response.body()){ if(!result.containsKey(r.getNum()){ result.put(r.getNum(), new Response1(r.getNum()); } // для других ответов заполняем остальные поля result.get(r.getNum()).setRay(r.getRay()); ... } adapter.setData(new ArrayList<>(result.values())); } Adapter1.setData(List<Response1> newData){ this.responseList1 = newData; notifyDataSetChanged(); }

Just changed. getRates() ♪ getRate(). getter/setter should be a name.

I found a solution to use CountDownLatch.@Test public void getDataTest(){ CountDownLatch latch = new CountDownLatch(1); Server.getData(new DataListener(){ @Override onSuccess(String data){ assertNotEquals(data,""); latch.countDown(); } }); try { latch.await(); } catch (InterruptedException e) { e.printStackTrace(); } }

Decided it like that: apiService.getContactDataTechnicalSupport(country) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(response -> { if (response.getSuccess()) view.setTechSupportData(response); else view.showErrorRequestSupportContact(response.getCode(), response.getMessage()); }, throwable -> { if (throwable instanceof SocketTimeoutException || throwable instanceof UnknownHostException) view.showErrorRequestSupportContact(NO_INTERNET_CODE, "Нет интернета"); else view.showErrorRequestSupportContact(0, "Ошибка подключения"); });

My problem was I didn't get json right. I had to fix the class of json.

You don't want the answer from the server. Your request is expected List<GetUser>but the server's probably returning the object inside of which is the list.You need to take this. JSON and any http://www.jsonschema2pojo.org/ evaporate. It's the same for the studio. https://plugins.jetbrains.com/plugin/8634-robopojogenerator ♪It's harder to say, because you need to see the answer as well as your models, but the problem is exactly annex expects the wrong answer that comes from the server.

Well, since your request is being carried out for a while, you're not gonna be able to take your interface back to download.There are two options:Hang some boater, in the simplest case, a cooler, if you want to jump in and make the User-Frendly interface look towards the Skeleton pattern.It's to load the data in advance, keep them in the cash and then pull them out. But there's a couple of nuances here:If you don't have any data at the time of the start-up on the new screen, it's not gonna fit you. For example, if you get some information from the user and depending on this information, you're gonna have to go to option one.If all data are downloaded when your application is downloaded, the data will be downloaded, but the user will never use it (not come on this screen for example) and it will be possible that you have spent the user and the phone's memory on empty.Therefore, your task is to take these points into account and plan the loading at a time when the user has the potential to use them. If, for example, you have a float when the user enters a bank application, and there's a screen for the order. To this end, he needs to make a flash drive like this: меню -> еще -> инфо -> заказать справки. You don't need to load them with the app, but if, for example, the user failed before the Info feed, maybe it's time to start loading them.Well, it's a good tone, but more difficult implementation is to show data as they are downloaded. Suddenly, if you also have a bank application and a map screen contains the maps and a list of operations on it, and they're holding two different requests, then don't wait for both of them, but show them as they get, for example, first if they're downloaded, then the list of operations. It's possible to keep the data from being loaded with all the coppers, so the user has a very slow internet, so you can show him some information.