Register Api Implement Using Retrofit In Android

 

Implement Register RestApi Using Retrofit

First Add This Three Dependency in build.gradle

implementation 'com.squareup.retrofit2:retrofit:2.4.0' // This is use for Retrofit.

implementation 'com.squareup.retrofit2:converter-gson:2.4.0' // This is use for Covert to gson.

implementation 'com.squareup.okhttp3:logging-interceptor:4.2.1' // This Is use for log checking.

Activity_register.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=".Register">

   

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="Cafe Coffee "

        android:layout_marginTop="130dp"

        android:gravity="center"

        android:textSize="70dp"

        android:fontFamily="cursive"

        android:textColor="#ED2067"

        android:layout_marginLeft="30dp"

        android:layout_marginRight="30dp"

        />

 

 

    <com.google.android.material.textfield.TextInputLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"

        android:layout_centerInParent="true"

        android:layout_marginLeft="30dp"

        android:layout_marginRight="30dp"

        android:id="@+id/nameLayout"

        >

 

        <EditText

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:hint="Name"

            android:id="@+id/etName"

            />

 

    </com.google.android.material.textfield.TextInputLayout>

 

    <com.google.android.material.textfield.TextInputLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"

        android:id="@+id/emaillayout"

        android:layout_marginLeft="30dp"

        android:layout_marginRight="30dp"

        android:layout_below="@+id/nameLayout"

        android:layout_marginTop="10dp"

        >

 

        <EditText

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:hint="Email"

            android:inputType="textEmailAddress"

            android:id="@+id/etEmail"

            />

 

    </com.google.android.material.textfield.TextInputLayout>

 

 

    <com.google.android.material.textfield.TextInputLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"

        android:id="@+id/passwordlayout"

        android:layout_below="@+id/emaillayout"

        android:layout_marginLeft="30dp"

        android:layout_marginRight="30dp"

        android:layout_marginTop="10dp"

        app:passwordToggleEnabled="true"

        app:passwordToggleTint="@color/black"

        >

 

        <EditText

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:hint="Password"

            android:inputType="textPassword"

            android:id="@+id/etPassword"

 

            />

 

    </com.google.android.material.textfield.TextInputLayout>

 

 

    <Button

        android:id="@+id/btnRegister"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="Register"

        android:textColor="@color/white"

        android:background="#3BB5EC"

        android:layout_below="@id/passwordlayout"

        android:layout_marginTop="20dp"

        android:layout_marginRight="30dp"

        android:layout_marginLeft="30dp"/>

 

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="Already Registster | Login Here"

        android:layout_below="@+id/btnRegister"

        android:gravity="center_horizontal"

        android:layout_marginTop="5dp"

        android:id="@+id/loginlink"/>

 

</RelativeLayout>

 

Create RegisterResponse.java for get Register Response.

package com.codewithandroid.fulldemo;

 

public class RegisterResponse {

 

    String error;

    String message;

 

    public RegisterResponse(String error, String message) {

        this.error = error;

        this.message = message;

    }

 

 

    public String getError() {

        return error;

    }

 

    public void setError(String error) {

        this.error = error;

    }

 

    public String getMessage() {

        return message;

    }

 

    public void setMessage(String message) {

        this.message = message;

    }

}

Create Api Interface Class

package com.codewithandroid.fulldemo;

import com.codewithandroid.fulldemo.ModelResponse.RegisterResponse;

import retrofit2.Call;

import retrofit2.http.Field;

import retrofit2.http.FormUrlEncoded;

import retrofit2.http.POST;

 

public interface Api {

 

    @FormUrlEncoded

    @POST("register.php")

    Call<RegisterResponse> register(

            @Field("username") String username,

            @Field("email") String email,

            @Field("password") String password

    );

}

Create RetrofitClient.java Class.

package com.codewithandroid.fulldemo;

import okhttp3.OkHttpClient;

import okhttp3.logging.HttpLoggingInterceptor;

import retrofit2.Retrofit;

import retrofit2.converter.gson.GsonConverterFactory;

 

public class RetrofitClient {

 

    private static String BASE_URL="http://anujsinha.ml/UserManagementApi/";

    private static RetrofitClient retrofitClient;

    private static Retrofit retrofit;

 

    private OkHttpClient.Builder builder = new OkHttpClient.Builder();

    private HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();

 

 

    private RetrofitClient(){

 

        interceptor.level(HttpLoggingInterceptor.Level.BODY);

        builder.addInterceptor(interceptor);

        retrofit = new Retrofit.Builder()

                .baseUrl(BASE_URL)

                .addConverterFactory(GsonConverterFactory.create())

                .client(builder.build())

                .build();

    }

 

    public static synchronized RetrofitClient getInstance(){

 

        if (retrofitClient==null){

            retrofitClient = new RetrofitClient();

        }

        return retrofitClient;

    }

 

    public Api getApi(){

        return retrofit.create(Api.class);

    }

 

} 

Register.Java

package com.codewithandroid.fulldemo;

 

import androidx.appcompat.app.AppCompatActivity;

 

import android.content.Intent;

import android.os.Bundle;

import android.util.Patterns;

import android.view.View;

import android.view.WindowManager;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

import android.widget.Toast;

 

import com.codewithandroid.fulldemo.ModelResponse.RegisterResponse;

 

import org.w3c.dom.Text;

 

import java.util.regex.Pattern;

 

import retrofit2.Call;

import retrofit2.Callback;

import retrofit2.Response;

 

public class Register extends AppCompatActivity implements View.OnClickListener {

 

    TextView loginLink;

    EditText name,email,password;

    Button register;

 

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_register);

 

        //hide Actionbar

        getSupportActionBar().hide();

 

        //hide Stataus bar

 

        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);

 

        loginLink  = findViewById(R.id.loginlink);

        name = findViewById(R.id.etName);

        email = findViewById(R.id.etEmail);

        password = findViewById(R.id.etPassword);

        register = findViewById(R.id.btnRegister);

 

        loginLink.setOnClickListener(this);

        register.setOnClickListener(this);

 

 

 

    }

 

    @Override

    public void onClick(View view) {

 

        switch(view.getId()){

            case R.id.btnRegister:

                registerUser();

                //Toast.makeText(this, "register", Toast.LENGTH_SHORT).show();

                break;

            case R.id.loginlink:

                swithOnLogin();

                break;

        }

    }

 

    private void registerUser() {

 

        String userName = name.getText().toString();

        String userEmail = email.getText().toString();

        String userPassword = password.getText().toString();

 

        if (userName.isEmpty()){

            name.requestFocus();

            name.setError("Please Enter Name");

            return;

        }

 

        if (userEmail.isEmpty()){

            email.requestFocus();

            email.setError("Please Enter Email");

            return;

        }

        if (Patterns.EMAIL_ADDRESS.matcher(userEmail).matches()){

            email.requestFocus();

            email.setError("Please Enter Correct Email");

            return;

        }

 

        if (userPassword.isEmpty()){

            password.requestFocus();

            password.setError("Please Enter Password");

            return;

        }

 

        if (userPassword.length()<8){

            password.requestFocus();

            password.setError("Please Enter Password");

            return;

        }

 

        Call<RegisterResponse> call = RetrofitClient

                .getInstance()

                .getApi()

                .register(userName,userEmail,userPassword);

 

        call.enqueue(new Callback<RegisterResponse>() {

            @Override

            public void onResponse(Call<RegisterResponse> call, Response<RegisterResponse> response) {

                RegisterResponse registerResponse = response.body();

                if (response.isSuccessful()){

                    Intent intent = new Intent(Register.this,Login.class);

                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);

                    startActivity(intent);

                    finish();

                    Toast.makeText(Register.this, registerResponse.getMessage(), Toast.LENGTH_SHORT).show();

                }

                else {

                    Toast.makeText(Register.this, registerResponse.getMessage(), Toast.LENGTH_SHORT).show();

                }

            }

 

            @Override

            public void onFailure(Call<RegisterResponse> call, Throwable t) {

 

            }

        });

 

    }

 

    private void swithOnLogin() {

        startActivity(new Intent( Register.this,Login.class));

    }

}

OUTPUT

If you Create Rest Api In PHP So Follow This Step.

First Step Create Connection.php File and Paste this Code.

<?php

 

   $hostName='localhost';

   $userName='root';

   $userPass='';

   $dbName='userdata';

 

   $con=mysqli_connect($hostName,$userName,$userPass,$dbName);

 

   /*if(!$con){

 

                echo "connection failed";

   }

   else

                echo "connection succes";*/

 

?>

 

Second Step Create Login.php File and Paste this Code.

 

  <?php

 require 'connection.php';

  $username=$_POST['username'];

  $email=$_POST['email'];

  $password=md5($_POST['password']);

 

 

 

  $checkUser="SELECT * from user WHERE email='$email'";

  $checkQuery=mysqli_query($con,$checkUser);

 

  if(mysqli_num_rows($checkQuery)>0){

 

                 $response['error']="002";

                $response['message']="User exist";

  }

  else

  {

     $insertQuery="INSERT INTO user(username,email,password) VALUES('$username','$email','$password')";

  $result=mysqli_query($con,$insertQuery);

 

  if($result){

 

                $response['error']="000";

                $response['message']="Register successful!";

  }

  else

  {

                $response['error']="001";

                $response['message']="Registeration failed!";

  }

 

 

 

  }

 

 

  echo json_encode($response);

 

?>