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Complex Retrofit Class With Database

URL:- http://www.mocky.io/v2/5b936d6f33000011002061d3

1 ) Create RetrofitClient(Base URL Class)


import retrofit2.GsonConverterFactory;
import retrofit2.Retrofit;

public class RetrofitClient {
    //http://www.mocky.io/v2/5b936d6f33000011002061d3
    public static final String API_BASE_URL = "http://www.mocky.io/v2/";

    public static Retrofit retrofit=null;

    public static Retrofit getApiClient()
    {
        if(retrofit==null)
        {
            retrofit=new Retrofit.Builder().baseUrl(API_BASE_URL).addConverterFactory(GsonConverterFactory
                    .create()).build();
        }
        return retrofit;
    }
}










2 ) Create Retrofit ApiInterface Class(End URL Class)






import com.example.discusit.complexretrofitdemo.model.Data;

import retrofit2.Call;
import retrofit2.http.GET;

public interface ApiInterface {
    @GET("5b936d6f33000011002061d3")
    Call<Data> getData();
}






3 ) Create Require Model Class








    A) Data


       


import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

import java.util.List;

public class Data {

    @SerializedName("status")
    @Expose    private String status;
    @SerializedName("message")
    @Expose    private String message;
    @SerializedName("data")
    @Expose    private List<Datum> data = null;

    public String getStatus() {
        return status;
    }
    public void setStatus(String status) {
        this.status = status;
    }
    public String getMessage() {
        return message;
    }
    public void setMessage(String message) {
        this.message = message;
    }
    public List<Datum> getData() {
        return data;
    }
    public void setData(List<Datum> data) {
        this.data = data;
    }
}




  B) Datum


import com.google.gson.annotations.Expose;


import com.google.gson.annotations.SerializedName;

import java.util.List;

public class Datum {

    @SerializedName("id")
    @Expose    private String id;
    @SerializedName("name")
    @Expose    private String name;
    @SerializedName("country")
    @Expose    private String country;
    @SerializedName("city")
    @Expose    private String city;
    @SerializedName("mobile")
    @Expose    private List<Mobile> mobile = null;

    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getCountry() {
        return country;
    }
    public void setCountry(String country) {
        this.country = country;
    }
    public String getCity() {
        return city;
    }
    public void setCity(String city) {
        this.city = city;
    }
    public List<Mobile> getMobile() {
        return mobile;
    }
    public void setMobile(List<Mobile> mobile) {
        this.mobile = mobile;
    }
}




C) Phone




import com.google.gson.annotations.Expose;


import com.google.gson.annotations.SerializedName;

public class Mobile {

    @SerializedName("android")
    @Expose    private String android;

    public String getAndroid() {
        return android;
    }
    public void setAndroid(String android) {
        this.android = android;
    }
}






4 ) Recyclerview Adatper Class




 
 
 
 



import android.content.Context;
import android.content.SharedPreferences;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.example.discusit.complexretrofitdemo.R;
import com.example.discusit.complexretrofitdemo.model.Datum;
import com.example.discusit.complexretrofitdemo.model.Mobile;
import java.util.ArrayList;
public class DataAdapter extends RecyclerView.Adapter {
    private int mViewItem = 1;
    private String mReminderId;
    private Context mActivity;
    private LayoutInflater mLayoutInflater;
    private SharedPreferences.Editor ReminderId;
    private ArrayList<Mobile> mArrPhoneModel = new ArrayList<>();
    private ArrayList<Datum> mArrContactModel = new ArrayList<>();
    public DataAdapter(Context mActivity, ArrayList<Datum> mArrContactModel)
    {
        this.mActivity = mActivity;
        this.mArrContactModel=mArrContactModel;
        mLayoutInflater = LayoutInflater.from(mActivity);
    }
    public DataAdapter(Context mActivity, ArrayList<Datum> mArrContactModel, ArrayList<Mobile> mArrPhoneModel)
    {
        this.mActivity = mActivity;
        this.mArrContactModel=mArrContactModel;
        this.mArrPhoneModel=mArrPhoneModel;
        mLayoutInflater = LayoutInflater.from(mActivity);
    }
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
    {
        View view = mLayoutInflater.inflate(R.layout.row_data, parent, false);
        return new CustomViewHolder(view);
    }
    @Override
    public int getItemViewType(int position)
    {
        return mArrContactModel.get(position) != null ? mViewItem : 0;
    }
    @Override
    public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position)
    {
        try {
            final Datum contactModel = mArrContactModel.get(position);
            ((CustomViewHolder) holder).mTextId.setText(contactModel.getId());
            ((CustomViewHolder) holder).mTextName.setText(contactModel.getName());
            ((CustomViewHolder) holder).mTextCountry.setText(contactModel.getCountry());
            ((CustomViewHolder) holder).mTextCity.setText(contactModel.getCity());
            ((CustomViewHolder) holder).mTextMobile.setText(contactModel.getMobile().get(0).getAndroid());
        }
        catch (Exception exception)
        {
            Log.e("Error:>>>>>>", String.valueOf(exception));
        }
    }
    @Override
    public int getItemCount()
    {
        return mArrContactModel.size();
    }
    public static class CustomViewHolder extends RecyclerView.ViewHolder
    {
        private TextView mTextId, mTextName,mTextCountry,mTextCity,mTextMobile,mTextHome,mTextOffice;
        public CustomViewHolder(View view)
        {
            super(view);
            mTextId = (TextView) view.findViewById(R.id.text_row_data_id);
            mTextName = (TextView) view.findViewById(R.id.text_row_data_name);
            mTextCountry= (TextView) view.findViewById(R.id.text_row_data_country);
            mTextCity= (TextView) view.findViewById(R.id.text_row_data_city);
            mTextMobile= (TextView) view.findViewById(R.id.text_row_data_mobile);
        }
    }
}






6 ) Database Helper Class






public class DatabaseHelper extends SQLiteOpenHelper {

    public static final String TABLE_NAME = "notes";

    public static final String COLUMN_ID = "id";
    public static final String COLUMN_NAME = "name";
    public static final String COLUMN_COUNTRY = "country";
    public static final String COLUMN_CITY = "city";
    public static final String COLUMN_MOBILE = "mobile";

    // Create table SQL query    public static final String CREATE_TABLE =
            "CREATE TABLE " + TABLE_NAME + "("                    + COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"                    + COLUMN_NAME + " TEXT,"                    + COLUMN_COUNTRY + " TEXT,"                    + COLUMN_CITY + " TEXT,"                    + COLUMN_MOBILE + " TEXT"                    + ")";

    // Database Version    private static final int DATABASE_VERSION = 1;

    // Database Name    private static final String DATABASE_NAME = "notes_db";

    public DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }
    // Creating Tables    @Override    public void onCreate(SQLiteDatabase db) {
        // create notes table        db.execSQL(CREATE_TABLE);
    }
    // Upgrading database    @Override    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if existed        db.execSQL("DROP TABLE IF EXISTS " +TABLE_NAME);
        // Create tables again        onCreate(db);
    }

    public void insertContactData(ArrayList<Datum> contactList)
    {
        SQLiteDatabase db = getWritableDatabase();

        for (Datum contactsModel : contactList) {
            ContentValues values = new ContentValues();
            values.put(COLUMN_NAME,contactsModel.getName());
            values.put(COLUMN_COUNTRY,contactsModel.getCountry());
            values.put(COLUMN_CITY,contactsModel.getCountry());
            values.put(COLUMN_MOBILE,contactsModel.getCountry());
            db.insert(TABLE_NAME, null, values);
        }
        db.close();
    }
}








6 ) Main Activity






import android.content.Context;


import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import com.example.discusit.complexretrofitdemo.adapter.DataAdapter;
import com.example.discusit.complexretrofitdemo.model.Data;
import com.example.discusit.complexretrofitdemo.model.Datum;
import com.example.discusit.complexretrofitdemo.webservices.ApiInterface;
import com.example.discusit.complexretrofitdemo.webservices.RetrofitClient;
import java.io.IOException;
import java.util.ArrayList;
import retrofit2.Call;
import retrofit2.Response;
public class MainActivity extends AppCompatActivity {
    private String mEndUrl;
    private DataAdapter dataAdapter;
    private RecyclerView mRecyclerView;
    private LinearLayoutManager mLinearLayoutManagerList;
    private String TAG = MainActivity.class.getSimpleName();
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setIds();
        setLayout();
        callDemoAPI();
    }
    //set Ids For The Views
    private void setIds()
    {
        mRecyclerView=findViewById(R.id.recycle_Activity_main);
    }
    // Set Layout For Recycler View
    private void setLayout()
    {
//        dataAdapter = new DataAdapter(mActivity,mArrSubFoldersListModel , this);
        callDemoAPI();
    }
    private void callDemoAPI()
    {
        new MainActivity.RetrofitAyncTask().execute(this);
    }
    private class RetrofitAyncTask extends AsyncTask<Context, Void, ArrayList<Datum>> {
        private String TAG = MainActivity.RetrofitAyncTask.class.getSimpleName();
        private Context contx;
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
        }
        @Override
        protected ArrayList<Datum> doInBackground(Context... params) {
            Log.e(TAG, "processing http request in async task using retrofit");
            contx = (Context) params[0];
            //create service which is implementation of CouponApi interface by passing it to retrofit object
            ApiInterface couponService = RetrofitClient.getApiClient().create(ApiInterface.class);
            //call api method which returns call object
            Call<Data> call = couponService.getData();
            try {
                //call the api synchronously as this is part of back ground thread already with AsncTask
                Response<Data> rp  =  call.execute();
                return (ArrayList<Datum>) rp.body().getData();
            } catch (IOException e) {
                Log.e(TAG, "error in getting response from service using retrofit");
            }
            return null;
        }
        @Override
        protected void onPostExecute(ArrayList<Datum> result) {
            super.onPostExecute(result);
            if (result != null) {
                Log.e(TAG, "populate recyclerview Linear in UI after response from service using retrofit");
                //populate recyclerview grid from retrofit response result
                DataAdapter couponAdapter = new DataAdapter(contx,result);
                DataAdapter couponAdapter = new DataAdapter(contx,result);
                DatabaseHelper sqLiteHelper = new DatabaseHelper(MainActivity.this);
                sqLiteHelper.insertContactData(result);


                mRecyclerView.setHasFixedSize(true);
                mLinearLayoutManagerList = new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false);
                mRecyclerView.setLayoutManager(mLinearLayoutManagerList);
                mRecyclerView.setAdapter(couponAdapter);
            }
        }
    }
}












6 ) Activity Main.XML






<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycle_Activity_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"/>
</RelativeLayout>







    

7 )row.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/text_row_data_id"
        tools:text="id"
        android:textSize="20sp"
        android:textStyle="bold"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/text_row_data_name"
        tools:text="name"
        android:textSize="20sp"
        android:textStyle="bold"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/text_row_data_country"
        tools:text="country"
        android:textSize="20sp"
        android:textStyle="bold"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/text_row_data_city"
        tools:text="city"
        android:textSize="20sp"
        android:textStyle="bold"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/text_row_data_mobile"
        tools:text="mobile"
        android:textSize="20sp"
        android:textStyle="bold"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/text_row_data_home"
        tools:text="hoem"
        android:textSize="20sp"
        android:textStyle="bold"
        />
    <TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/text_row_data_office"
    tools:text="office"
    android:textSize="20sp"
    android:textStyle="bold"
    />
</LinearLayout>








Notes : 


1 ) Require Libraries






//App Design


implementation 'com.android.support:design:27.1.0'


//AppCompact


implementation 'com.android.support:appcompat-v7:27.1.1'


// Retrofit & OkHttp


implementation 'com.squareup.retrofit2:retrofit:2.0.0-beta3'


implementation 'com.squareup.retrofit2:converter-gson:2.0.0-beta3'


implementation 'com.squareup.okhttp3:okhttp:3.0.0-RC1'


implementation 'com.squareup.okhttp3:logging-interceptor:3.0.0-RC1'


//Recyclerview


implementation 'com.android.support:recyclerview-v7:27.1.1'






// Output 






{
    "status": "true",
    "message": "Data fetched successfully!",
    "data": [
        {
            "id": "1",
            "name": "Roger Federer",
            "country": "Switzerland",
            "city": "Basel",
            "mobile": [
                {
                    "android": "Samsung"
                }
            ]
        },
        {
            "id": "2",
            "name": "Rafael Nadal",
            "country": "Spain",
            "city": "Madrid",
            "mobile": [
                {
                    "android": "One PLus"
                }
            ]
        },
        {
            "id": "3",
            "name": "Novak Djokovic",
            "country": "Serbia",
            "city": "Monaco",
            "mobile": [
                {
                    "android": "Redmi"
                }
            ]
        },
        {
            "id": "4",
            "name": "Andy Murray",
            "country": "United Kingdom",
            "city": "London",
            "mobile": [
                {
                    "android": "Gionee"
                }
            ]
        },
        {
            "id": "5",
            "name": "Maria Sharapova",
            "country": "Russia",
            "city": "Moscow",
            "mobile": [
                {
                    "android": "RealMe"
                }
            ]
        },
        {
            "id": "6",
            "name": "Caroline Wozniacki",
            "country": "Denmark",
            "city": "Odense",
            "mobile": [
                {
                    "android": "Oppo"
                }
            ]
        },
        {
            "id": "7",
            "name": "Eugenie Bouchard",
            "country": "Canada",
            "city": " Montreal",
            "mobile": [
                {
                    "android": "Vivo"
                }
            ]
        },
        {
            "id": "8",
            "name": "Ana Ivanovic",
            "country": "Serbia",
            "city": "Belgrade",
            "mobile": [
                {
                    "android": "Nokia"
                }
            ]
        }
    ]
}

















































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