retrofit_snippet_6

package com.example.retrofitsimple;

import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

import android.content.DialogInterface;
import android.content.Intent;
import android.media.DeniedByServerException;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

import static androidx.constraintlayout.widget.Constraints.TAG;

public class MainActivity extends AppCompatActivity {

    private Button clickMe;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        clickMe = findViewById(R.id.call_api);

        clickMe.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                callApi();
            }
        });
    }

    private void callApi() {

        ApiInterface apiService = APIClient.getClient().create(ApiInterface.class);
        Call<com.example.retrofitsimple.Response> callLoginRetro = apiService.getAllData();
        callLoginRetro.enqueue(new Callback<com.example.retrofitsimple.Response>() {
            @Override
            public void onResponse(Call<com.example.retrofitsimple.Response> call, Response<com.example.retrofitsimple.Response> response) {
                String title = response.body().getTitle();
                Toast.makeText(getApplicationContext(), title, Toast.LENGTH_SHORT).show();
            }

            @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR2)
            @Override
            public void onFailure(Call<com.example.retrofitsimple.Response> call, Throwable t) {
                if (t instanceof DeniedByServerException) {
                    new android.app.AlertDialog.Builder(MainActivity.this)
                            .setTitle("Error")
                            .setMessage("Server not found")
                            .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.cancel();
                                }
                            }).show();
                } else if (t instanceof java.net.SocketTimeoutException) {
                    new android.app.AlertDialog.Builder(MainActivity.this)
                            .setTitle("Error")
                            .setMessage("Timed out")
                            .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.cancel();
                                }
                            }).show();
                } else if (t instanceof java.net.ConnectException) {
                    new android.app.AlertDialog.Builder(MainActivity.this)
                            .setTitle("Error")
                            .setMessage("No internet connection")
                            .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.cancel();
                                }
                            }).show();
                } else{
                    new android.app.AlertDialog.Builder(MainActivity.this)
                            .setTitle("Error")
                            .setMessage("Some error occurred please try after sometime.")
                            .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialog, int which) {
                                    dialog.cancel();
                                }
                            }).show();
                }
                //    GrowerUtility.getUtilityInstance().sweetPopup(sweetAlertDialog, mContext, SweetAlertDialog.ERROR_TYPE, error.toString());

            }
        });
    }

}