OkHttp Library - NetworkOnMainThreadException auf einfachen Post

Sollten Sie verwenden, OkHttp die async-Methode.

public static final MediaType JSON = MediaType.parse("application/json; charset=utf-8");

OkHttpClient client = new OkHttpClient();

Call post(String url, String json, Callback callback) {
  RequestBody body = RequestBody.create(JSON, json);
  Request request = new Request.Builder()
      .url(url)
      .post(body)
      .build();
  Call call = client.newCall(request);
  call.enqueue(callback);
  return call;
}

Und dann Ihre Reaktion behandelt werden würde in der callback (OkHttp 2.x):

post("http://www.roundsapp.com/post", json, new Callback() {
  @Override
  public void onFailure(Request request, Throwable throwable) {
     //Something went wrong
  }

  @Override public void onResponse(Response response) throws IOException {
    if (response.isSuccessful()) {
       String responseStr = response.body().string();
       //Do what you want to do with the response.
    } else {
       //Request not successful
    }
  }
});

Oder OkHttp 3.x:

post("http://www.roundsapp.com/post", "", new Callback() {
        @Override
        public void onFailure(Call call, IOException e) {
            //Something went wrong
        }

        @Override
        public void onResponse(Call call, Response response) throws IOException {
            if (response.isSuccessful()) {
                String responseStr = response.body().string();
                //Do what you want to do with the response.
            } else {
                //Request not successful
            }
        }
    });

Werfen Sie einen Blick auf Ihre Rezepte für mehr Beispiele: https://github.com/square/okhttp/wiki/Recipes

InformationsquelleAutor der Antwort se_bastiaan

Wenn Sie die folgenden Schritte zu implementieren, OKHTTP, dann auf jeden Fall wirst du mehrere API-Aufruf auf mehreren Bildschirm, indem nur zwei Zeilen code

UpdateListener updateListener = new UpdateListener(HitAPIActivity.this, baseHTTPRequest);
updateListener.getJsonData();

Schritt 1:

baseHTTPRequest = new BaseHTTPRequest();
    //   baseHTTPRequest.setURL("https://api.geonames.org/citiesJSON?north=44.1&south=-9.9&east=-22.4&west=55.2&lang=de&username=demohttps://api.geonames.org/citiesJSON?north=44.1&south=-9.9&east=-22.4&west=55.2&lang=de&username=demo");
baseHTTPRequest.setURL("http://jsonparsing.parseapp.com/jsonData/moviesDemoItem.txt");
        baseHTTPRequest.setRequestCode(reqType);
        baseHTTPRequest.setCachedRequired(true);

        UpdateListener updateListener = new UpdateListener(HitAPIActivity.this, baseHTTPRequest);
        updateListener.executeRequest();

Schritt 2 : Erstellen Sie eine Anfrage Klasse

/**
* Erstellt von Deepak Sharma auf 4/7/16.
* Dies ist ein HTTP-request Klasse, die die grundlegenden Parameter.
* Wenn Sie hinzufügen will, einige weitere Parameter ein, bitte machen Sie eine Unterklasse der Klasse
* und fügen Sie mit Ihrer Unterklasse. Ändern Sie nicht diese Klasse.
*/

 public class BaseHTTPRequest<T> {

    private Context context;
    private String URL;
    private int requestCode;
    private List<T> listParameters;
    private String header;
    private boolean isCachedRequired;

    public Context getContext() {
        return context;
    }
    public void setContext(Context context) {
        this.context = context;
    }
    public void setURL(String URL) {
        this.URL = URL;
    }
    public String getURL() {
        return URL;
    }

    public int getRequestCode() {
        return requestCode;
    }

    public void setRequestCode(int requestCode) {
        this.requestCode = requestCode;
    }

    public List<T> getListParameters() {
        return listParameters;
    }

    public void setListParameters(List<T> listParameters) {
        this.listParameters = listParameters;
    }

    public String getHeader() {
        return header;
    }

    public void setHeader(String header) {
        this.header = header;
    }

    public boolean isCachedRequired() {
        return isCachedRequired;
    }
    public void setCachedRequired(boolean cachedRequired) {
        isCachedRequired = cachedRequired;
    }
}

Schritt 4 : Erstellen einer listener-Klasse

import android.util.Melden Sie;
import com.google.gson.Gson;
import java.io.IOException;
import dxswifi_direct.com.wifidirectcommunication.base.Modell.Anfrage.BaseHTTPRequest;
import okhttp3.Call;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Rückruf;
import okhttp3.Anfrage;
import okhttp3.RequestBody;
import okhttp3.Antwort;

/**
* Erstellt von Deepak Sharma auf 4/7/16.
* @E-Mail : [email protected]
* Dies ist eine Einfache java-Klasse, die Ihnen helfen, die für die HTTP-Anforderung/Antwort und es wird
* werfen Sie die Antwort auf Ihre Korrespondenz Aktivität.
*/

public class UpdateListener {

    private OnUpdateViewListener onUpdateViewListener;

    OkHttpClient okHttpClient = new OkHttpClient();
    BaseHTTPRequest mRequestModel;
    private String mURL = null;
    private Request mRequest = null;

    public interface OnUpdateViewListener {
        void updateView(String responseString, boolean isSuccess,int reqType);
    }

    public UpdateListener(OnUpdateViewListener onUpdateView, final BaseHTTPRequest requestModel) {
        this.mRequestModel = requestModel;
        this.onUpdateViewListener = onUpdateView;

        if (requestModel.isCachedRequired())
        {
            /*File httpCacheDirectory = new File(requestModel.getContext().getCacheDir(), "responses");
            Cache cache = null;
            cache = new Cache(httpCacheDirectory, 10 * 1024 * 1024);
            if (cache != null) {
                okHttpClient.setCache(cache);
            }*/
        }

        /*mURL = null;
        if (requestModel.getListParameters()!=null && requestModel.getListParameters().size()>0)
        {
            HttpUrl.Builder urlBuilder = HttpUrl.parse(requestModel.getURL()).newBuilder();
            List<RequestParameter> requestParameters = requestModel.getListParameters();
            for (int i=0; i<requestParameters.size();i++)
            {
                urlBuilder.addQueryParameter(requestParameters.get(i).getKey(),requestParameters.get(i).getValue());
            }
            mURL = urlBuilder.build().toString();
        }
        else
        {
            mURL = requestModel.getURL();
        }*/

            mURL = requestModel.getURL();
        if (mRequestModel.getListParameters()!=null && mRequestModel.getListParameters().size()>1)
        {
            MediaType JSON = MediaType.parse("application/json; charset=utf-8");
            mRequest = new Request.Builder()
                    .url(mURL)
                    .post(RequestBody.create(JSON, new Gson().toJson(BaseHTTPRequest.class)))
                    .build();
        }
        else
        {
            mRequest = new Request.Builder()
                    .url(mURL)
                    .build();
        }

    }

    public void executeRequest()
    {
        Call call = okHttpClient.newCall(mRequest);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                e.printStackTrace();
                onUpdateViewListener.updateView(NetworkException.getErrorMessage(e), false, mRequestModel.getRequestCode());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (!response.isSuccessful()) {
                    //You can also throw your own custom exception
                    throw new IOException("Unexpected code " + response);
                } else {
                    Log.i("Response:",response.toString());
                    Log.i("Response body:",response.body().toString());
                    Log.i("Response message:",response.message());
                    onUpdateViewListener.updateView(response.body().string(),true, mRequestModel.getRequestCode());
                }
                //do something wih the result
            }
        });
    }
}

Schritt 5 : Aus der Tätigkeit, die Sie anfordern, implementieren listener

public class HitAPIActivity extends AppCompatActivity implements View.OnClickListener, UpdateListener.OnUpdateViewListener{

@Override
    public void updateView(final String responseString, boolean isSuccess, int reqType) {

if (isSuccess)
        {

if (!responseString.contains("failure")
                    && !responseString.contains("Error")) {
                //Handle request on the basis of Request Type.
                switch (reqType) {
                    case ApiConstants.GET_CONTACTS:

break;

default:
break;

}

}
}

}

InformationsquelleAutor der Antwort Maddy