add RestError.java

 package network;

import com.google.gson.annotations.Expose;

import com.google.gson.annotations.SerializedName;

public class RestError

{

    private boolean error;

    @SerializedName("status")

    @Expose

    private Integer status;

    @SerializedName("message")

    @Expose

    private String message;

    public RestError(String message) {

        this.message = message;

    }

    public boolean isError() {

        return error;

    }

    public void setError(boolean error) {

        this.error = error;

    }

    public String getMessage() {

        return message;

    }

    public void setMessage(String message) {

        this.message = message;

    }

}

add interface ApiInterface

 package network;

import retrofit2.Call;

import retrofit2.http.Body;

import retrofit2.http.Headers;

import retrofit2.http.POST;

import retrofit2.http.Query;

public interface ApiInterface

{

    String GET_CAT="readc.php";

   @Headers({"Content-Type: application/json","Accept: application/json"})

    @POST(GET_CAT)

    Call<contact> getdata();

}

Add StringConverter.java

 package network;

import androidx.annotation.NonNull;

import java.io.IOException;

import java.lang.annotation.Annotation;

import java.lang.reflect.Type;

import okhttp3.MediaType;

import okhttp3.RequestBody;

import okhttp3.ResponseBody;

import retrofit2.Converter;

import retrofit2.Retrofit;

class StringConverter extends Converter.Factory

{

    private static final MediaType MEDIA_TYPE = MediaType.parse("text/plain");

    @Override

    public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) {

        if (String.class.equals(type)) {

            return new Converter<ResponseBody, String>() {

                @Override

                public String convert(@NonNull ResponseBody value) throws IOException {

                    return value.string();

                }

            };

        }

        return null;

    }

    @Override

    public Converter<?, RequestBody> requestBodyConverter(Type type, Annotation[] parameterAnnotations,

                                                          Annotation[] methodAnnotations, Retrofit retrofit) {

        if (String.class.equals(type)) {

            return new Converter<String, RequestBody>() {

                @Override

                public RequestBody convert(@NonNull String value) throws IOException {

                    return RequestBody.create(MEDIA_TYPE, value);

                }

            };

        }

        return null;

    }

}

Add TLSSocketFactory.java

 package network;

import java.io.IOException;

import java.net.InetAddress;

import java.net.Socket;

import java.security.KeyManagementException;

import java.security.NoSuchAlgorithmException;

import javax.net.ssl.SSLContext;

import javax.net.ssl.SSLSocket;

import javax.net.ssl.SSLSocketFactory;

class TLSSocketFactory extends SSLSocketFactory

{

    private SSLSocketFactory delegate;

    public TLSSocketFactory() throws KeyManagementException, NoSuchAlgorithmException {

        SSLContext context = SSLContext.getInstance("TLS");

        context.init(null, null, null);

        delegate = context.getSocketFactory();

    }

    @Override

    public String[] getDefaultCipherSuites() {

        return delegate.getDefaultCipherSuites();

    }

    @Override

    public String[] getSupportedCipherSuites() {

        return delegate.getSupportedCipherSuites();

    }

    @Override

    public Socket createSocket() throws IOException {

        return enableTLSOnSocket(delegate.createSocket());

    }

    @Override

    public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {

        return enableTLSOnSocket(delegate.createSocket(s, host, port, autoClose));

    }

    @Override

    public Socket createSocket(String host, int port) throws IOException {

        return enableTLSOnSocket(delegate.createSocket(host, port));

    }

    @Override

    public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException {

        return enableTLSOnSocket(delegate.createSocket(host, port, localHost, localPort));

    }

    @Override

    public Socket createSocket(InetAddress host, int port) throws IOException {

        return enableTLSOnSocket(delegate.createSocket(host, port));

    }

    @Override

    public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {

        return enableTLSOnSocket(delegate.createSocket(address, port, localAddress, localPort));

    }

    private Socket enableTLSOnSocket(Socket socket) {

        if (socket != null && (socket instanceof SSLSocket)) {

            ((SSLSocket) socket).setEnabledProtocols(new String[]{"TLSv1.1", "TLSv1.2"});

        }

        return socket;

    }

}

get data from Api Using Retrofit2 ApiClient.java

package network;

import java.security.KeyManagementException;

import java.security.NoSuchAlgorithmException;

import java.util.concurrent.TimeUnit;

import okhttp3.OkHttpClient;

import okhttp3.logging.HttpLoggingInterceptor;

import retrofit2.Retrofit;

import retrofit2.converter.gson.GsonConverterFactory;

import retrofit2.converter.scalars.ScalarsConverterFactory;

public class ApiClient

{

    private static final String BASE_URL="http://www.gkmaza.com/apps/gujarati_suvichar/";

    private static Retrofit retrofit=null;

    private static OkHttpClient client;

    public static Retrofit getClient()

    {

        if(retrofit==null)

        {

            HttpLoggingInterceptor interceptor=new HttpLoggingInterceptor();

            interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);

            try

            {

                client = new OkHttpClient.Builder()

                        .followRedirects(true)

                        .followSslRedirects(true)

                        .sslSocketFactory(new TLSSocketFactory())

                        .retryOnConnectionFailure(true)

                        .addInterceptor(interceptor)

                        .connectTimeout(30, TimeUnit.MINUTES)

                        .readTimeout(30, TimeUnit.MINUTES)

                        .addInterceptor(interceptor)

                        .build();

            }catch (KeyManagementException e)

            {

                e.printStackTrace();

            }catch (NoSuchAlgorithmException e)

            {

                e.printStackTrace();

            }

            retrofit=new Retrofit.Builder()

                    .baseUrl(BASE_URL)

                    .client(client)

                    .addConverterFactory(new StringConverter())

                    .addConverterFactory(ScalarsConverterFactory.create())

                    .addConverterFactory(GsonConverterFactory.create())

                    .build();

        }

        return retrofit;

    }

}

 

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 Hey Guys, in this video I have told you some facts on ISRO. ISRO is well known for its economical and successful missions. ISRO (Indian Space Research Organization) is one of the top space organization which runs on a very little budget. But the work done and the success achieved by ISRO in limited resources is remarkable. In this video I tried to explain the basic main facts about ISRO but there is more about ISRO as it growing everyday with very new concept of technology which will be beneficial for INDIA and world. It is hard work of scientist at ISRO which led it to the this position in the world ranking. Also it received criticism for the launching of Mars Orbiter Mission, I always wonder why these critics space technology ignore the fact that how space technology has made huge difference in human lives. Just take a example of your Electronic chips in the phone,scratch resistance screen.and many more, if space technology wasn't there god knows when these things would have invented Hope you enjoy the video and if you enjoyed make sure to LIKE, SHARE And SUBSCRIBE !!!!!!

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