Membuat Register User dengan Firebase di Android Studio

Februari 24, 2018 , 0 Comments



Selamat siang Register User berguna untuk mengauthentikasi pengguna aplikasi kita, Register User biasanya terdapat pada aplikasi jejaring social ataupun ecommerce.  Register User bisa dibuat dengan menggunakan database MySQL, SQLite, MongoDB dll, tapi kali ini kita akan menggunakan Firebase, sudah disinggung sebelumnya kalau firebase ini menyediakan fungsi authentikasi yang lengkap, pada postingan sebelumnya kita telah membuat login user dengan Firebase, nah sekarang kita akan membuat form registernya. untuk membuatnya hampir sama dengan membuat form login bedanya pada register kita memasukan data user ke database kalau login hanya mencocokan data. langsung saja untuk memulainya buat dulu form registernya
 
xml version="1.0" encoding="utf-8"?>
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="com.giviews.giviewsmessenger.RegisterActivity">

           
android:id="@+id/main_page_toolbar"
       
layout="@layout/app_bar_layout"
       
android:layout_width="match_parent"
       
android:layout_height="wrap_content"
       
android:layout_marginLeft="0dp"
       
android:layout_marginTop="0dp"
       
app:layout_constraintHorizontal_bias="0.0"
       
app:layout_constraintLeft_toLeftOf="parent"
       
app:layout_constraintRight_toRightOf="parent"
       
app:layout_constraintTop_toTopOf="parent"
       
tools:ignore="NotSibling" />

           
android:id="@+id/reg_name"
       
android:layout_width="0dp"
       
android:layout_height="wrap_content"
       
android:layout_marginLeft="8dp"
       
android:layout_marginRight="8dp"
       
android:ems="10"
       
android:hint="Name ..."
       
android:inputType="textPersonName"
       
app:layout_constraintHorizontal_bias="0.0"
       
app:layout_constraintLeft_toLeftOf="parent"
       
app:layout_constraintRight_toRightOf="parent"
       
android:layout_marginStart="8dp"
       
android:layout_marginEnd="8dp"
       
android:layout_marginTop="26dp"
       
app:layout_constraintTop_toBottomOf="@+id/textView" />

           
android:id="@+id/reg_email"
       
android:layout_width="0dp"
       
android:layout_height="wrap_content"
       
android:layout_marginLeft="8dp"
       
android:layout_marginRight="8dp"
       
android:ems="10"
       
android:hint="Email ..."
       
android:inputType="textEmailAddress"
       
app:layout_constraintHorizontal_bias="0.0"
       
app:layout_constraintLeft_toLeftOf="parent"
       
app:layout_constraintRight_toRightOf="parent"
       
android:layout_marginStart="8dp"
       
android:layout_marginEnd="8dp"
       
android:layout_marginTop="8dp"
       
app:layout_constraintTop_toBottomOf="@+id/reg_name" />

           
android:id="@+id/reg_password"
       
android:layout_width="0dp"
       
android:layout_height="wrap_content"
       
android:ems="10"
       
android:hint="Password ..."
       
android:inputType="textPassword"
       
android:layout_marginTop="8dp"
       
app:layout_constraintTop_toBottomOf="@+id/reg_email"
       
android:layout_marginLeft="8dp"
       
app:layout_constraintLeft_toLeftOf="parent"
       
android:layout_marginRight="8dp"
       
app:layout_constraintRight_toRightOf="parent"
       
app:layout_constraintHorizontal_bias="0.0"
       
android:layout_marginStart="8dp"
       
android:layout_marginEnd="8dp" />

   
android:id="@+id/reg_create_btn"
       
android:layout_width="wrap_content"
       
android:layout_height="wrap_content"
       
android:text="Create Acooount"
       
android:background="@color/colorAccent"
       
android:padding="10dp"
       
android:textColor="@color/colorWhite"
       
android:layout_marginRight="8dp"
       
app:layout_constraintRight_toRightOf="parent"
       
android:layout_marginTop="16dp"
       
app:layout_constraintTop_toBottomOf="@+id/reg_password"
       
android:layout_marginEnd="8dp" />

           
android:id="@+id/textView"
       
android:layout_width="wrap_content"
        
android:layout_height="wrap_content"
       
android:layout_marginLeft="8dp"
       
android:layout_marginStart="8dp"
       
android:text="Create a New Account"
       
android:textSize="20sp"
       
android:textStyle="bold"
       
app:layout_constraintLeft_toLeftOf="parent"
       
android:layout_marginRight="8dp"
       
app:layout_constraintRight_toRightOf="parent"
       
app:layout_constraintHorizontal_bias="0.0"
       
android:layout_marginTop="26dp"
       
app:layout_constraintTop_toBottomOf="@+id/main_page_toolbar"
       
android:layout_marginEnd="8dp" />

Sambungkan projek android anda dengan firebase, kemudian buka firebase console aktifkan sigin method mengguanakan email

dan untuk script proses registernya seperti berikut, pada script berikut jika User berhasil didaftarkan maka akan diintent ke MainActivity untuk itu buat lagi Activity Main nya.
package com.giviews.giviewsmessenger;



import android.app.ProgressDialog;

import android.content.Intent;

import android.support.annotation.NonNull;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.support.v7.widget.Toolbar;

import android.text.TextUtils;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;



import com.google.android.gms.tasks.OnCompleteListener;

import com.google.android.gms.tasks.Task;

import com.google.firebase.auth.AuthResult;

import com.google.firebase.auth.FirebaseAuth;

import com.google.firebase.auth.FirebaseAuthInvalidCredentialsException;

import com.google.firebase.auth.FirebaseAuthUserCollisionException;

import com.google.firebase.auth.FirebaseAuthWeakPasswordException;

import com.google.firebase.auth.FirebaseUser;

import com.google.firebase.database.DatabaseReference;

import com.google.firebase.database.FirebaseDatabase;

import com.google.firebase.iid.FirebaseInstanceId;



import java.util.HashMap;



public class RegisterActivity extends AppCompatActivity {



    private EditText mDisplayName;

    private EditText mEmail;

    private EditText mPassword;

    private Button mCreateBtn;

    private Toolbar mToolbar;

    private ProgressDialog mProgress;



    private FirebaseAuth mAuth;

    private DatabaseReference mDatabase;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_register);



        mAuth = FirebaseAuth.getInstance();

        mDatabase = FirebaseDatabase.getInstance().getReference().child("Users");

        mToolbar = (Toolbar) findViewById(R.id.main_page_toolbar);

        setSupportActionBar(mToolbar);

        getSupportActionBar().setTitle("Register");

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);



        mDisplayName = (EditText) findViewById(R.id.reg_name);

        mEmail = (EditText) findViewById(R.id.reg_email);

        mPassword = (EditText) findViewById(R.id.reg_password);

        mCreateBtn = (Button) findViewById(R.id.reg_create_btn);

        mProgress = new ProgressDialog(this);



        mCreateBtn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                String displayname = mDisplayName.getText().toString().trim();

                String email = mEmail.getText().toString().trim();

                String password = mPassword.getText().toString().trim();



                if (!TextUtils.isEmpty(displayname) && !TextUtils.isEmpty(email) && !TextUtils.isEmpty(password)) {

                    mProgress.setTitle("Registering User");

                    mProgress.setMessage("Please wait while we create your account...");

                    mProgress.setCanceledOnTouchOutside(false);

                    mProgress.show();



                    register_user(displayname, email, password);

                }

            }

        });

    }



    private void register_user(final String displayname, String email, String password) {

        mAuth.createUserWithEmailAndPassword(email, password)

                .addOnCompleteListener(this, new OnCompleteListener() {

                    @Override

                    public void onComplete(@NonNull Task task) {



                        // If sign in fails, display a message to the user. If sign in succeeds

                        // the auth state listener will be notified and logic to handle the

                        // signed in user can be handled in the listener.

                        if (!task.isSuccessful()) {

                            mProgress.hide();



                            String error = "";

                            try {

                                throw task.getException();

                            } catch (FirebaseAuthWeakPasswordException e) {

                                error = "Weak Password";

                            } catch (FirebaseAuthInvalidCredentialsException e) {

                                error = "Invalid Email";

                            } catch (FirebaseAuthUserCollisionException e) {

                                error = "Existing account";

                            } catch (Exception e) {

                                error = "Unknown Error!";

                                e.printStackTrace();

                            }

                            Toast.makeText(getApplicationContext(), error, Toast.LENGTH_SHORT).show();

                        }else {

                            FirebaseUser currentUser = mAuth.getCurrentUser();

                            String uid = currentUser.getUid();



                            mDatabase = FirebaseDatabase.getInstance().getReference().child("Users").child(uid);

                            String device_token = FirebaseInstanceId.getInstance().getToken();



                            HashMap, String> userMap = new HashMap, String>();

                            userMap.put("name", displayname);

                            userMap.put("status", "Hi there, I'm using giviews");

                            userMap.put("image", "default");

                            userMap.put("thumb_image", "default");

                            userMap.put("device_token", device_token);



                            mDatabase.setValue(userMap).addOnCompleteListener(new OnCompleteListener() {

                                @Override

                                public void onComplete(@NonNull Task task) {

                                    mProgress.dismiss();

                                    Intent mainIntent = new Intent(RegisterActivity.this, MainActivity.class);

                                    mainIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

                                    startActivity(mainIntent);

                                }

                            });



                        }

                    }

                });

    }

}

Kemudian pada MainActivity buat sebuah textview dengan tulisan Selamat Anda berhasil mendaftar untuk memastikan user berhasil didaftarkan
untuk melihat user sudah berhasil mendaftar silakan lihat pada firebase console pada bagian authentication
Ok Sekianlah tutorial kali ini jika ada yang kurang jelas silakan ditanyakan pada komentar dibawah

Juanas Smith Shared

Some say he’s half man half fish, others say he’s more of a seventy/thirty split. Either way he’s a fishy bastard.

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