Android Guide: Firebase Authentication And Chat Module In Android

MainActivity

package com.firebaseintegration.activity;

import android.content.Intent;

import android.content.SharedPreferences;

import android.os.Bundle;

import android.support.design.widget.CoordinatorLayout;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import android.support.v7.widget.Toolbar;

import android.view.View;

import android.widget.ProgressBar;

import com.firebaseintegration.R;

import com.firebaseintegration.adapter.FriendsAdapter;

import com.firebaseintegration.controller.ConstantData;

import com.firebaseintegration.controller.RecyclerItemClickListener;

import com.firebaseintegration.controller.Utils;

import com.firebaseintegration.conversation.ConversationActivity;

import com.google.firebase.crash.FirebaseCrash;

import com.google.firebase.database.DataSnapshot;

import com.google.firebase.database.DatabaseError;

import com.google.firebase.database.DatabaseReference;

import com.google.firebase.database.FirebaseDatabase;

import com.google.firebase.database.ValueEventListener;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

public class MainActivity extends AppCompatActivity {

private SharedPreferences preferences;

private RecyclerView recyclerView;

private CoordinatorLayout coordinatorLayout;

private DatabaseReference databaseReference;

private Boolean isBoolean = false;

private List<HashMap<String, String>> listOfAllFriends = new ArrayList<>();

private ProgressBar progressBar;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//Toolbar

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

setSupportActionBar(toolbar);

setTitle("All Friends");

preferences = getSharedPreferences(ConstantData.PREFERENCES, MODE_PRIVATE);

FirebaseCrash.report(new Exception("MainActivity"));

databaseReference = FirebaseDatabase.getInstance().getReferenceFromUrl(ConstantData.URL);

initUI();

isBoolean = true;

getAllFriends();

onLineOffLine(true);

}

private void initUI() {

coordinatorLayout = (CoordinatorLayout) findViewById(R.id.coordinatorLayout);

recyclerView = (RecyclerView) findViewById(R.id.recyclerView);

progressBar = (ProgressBar) findViewById(R.id.progressBar);

recyclerView.setHasFixedSize(true);

RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(this);

recyclerView.setLayoutManager(mLayoutManager);

recyclerView.addOnItemTouchListener(

new RecyclerItemClickListener(this, new RecyclerItemClickListener.OnItemClickListener() {

@Override

public void onItemClick(View view, int position) {

Intent intent = new Intent(MainActivity.this, ConversationActivity.class);

intent.putExtra("map", listOfAllFriends.get(position));

startActivity(intent);

}

})

);

}

private void getAllFriends() {

if (Utils.isNetworkAvailable(this)) {

progressBar.setVisibility(View.VISIBLE);

databaseReference.child("user").addValueEventListener(

new ValueEventListener() {

@Override

public void onDataChange(DataSnapshot dataSnapshot) {

if (isBoolean) {

isBoolean = false;

if (dataSnapshot.getValue() != null) {

for (DataSnapshot messageSnapshot : dataSnapshot.getChildren()) {

HashMap<String, String> map = new HashMap<>();

map.put("dob", (String) messageSnapshot.child("dob").getValue());

map.put("email", (String) messageSnapshot.child("email").getValue());

map.put("gender", (String) messageSnapshot.child("gender").getValue());

map.put("name", (String) messageSnapshot.child("name").getValue());

map.put("phone", (String) messageSnapshot.child("phone").getValue());

map.put("profile_picture", (String) messageSnapshot.child("profile_picture").getValue());

map.put("status", (String) messageSnapshot.child("status").getValue());

String userEmail = preferences.getString("email", "");

String email = (String) messageSnapshot.child("email").getValue();

if (!userEmail.equals(email)) {

listOfAllFriends.add(map);

}

setData();

} else {

progressBar.setVisibility(View.GONE);

Utils.showSnackbar(coordinatorLayout, "Friends not found.");

}

@Override

public void onCancelled(DatabaseError databaseError) {

progressBar.setVisibility(View.GONE);

Utils.showSnackbar(coordinatorLayout, "" + databaseError);

}

});

} else {

Utils.showSnackbar(coordinatorLayout, getResources().getString(R.string.internet_error));

}

public void setData() {

progressBar.setVisibility(View.GONE);

if (listOfAllFriends.size() != 0) {

FriendsAdapter friendsAdapter = new FriendsAdapter(this, listOfAllFriends);

recyclerView.setAdapter(friendsAdapter);

} else {

Utils.showSnackbar(coordinatorLayout, "Friends not found.");

}

@Override

public void onBackPressed() {

onLineOffLine(false);

super.onBackPressed();

}

public void onLineOffLine(boolean isBoolean) {

String key = preferences.getString("key", "");

if (!Utils.isStringNull(key)) {

if (isBoolean) {

databaseReference.child("user").child(key).child("status").setValue("1");

} else {

databaseReference.child("user").child(key).child("status").setValue("0");

}

activity_main

<?xml version="1.0" encoding="utf-8"?>

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

android:id="@+id/coordinatorLayout"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:background="@color/white"

android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:theme="@style/AppTheme.AppBarOverlay">

<android.support.v7.widget.Toolbar

android:id="@+id/toolbar"

android:layout_width="match_parent"

android:layout_height="?attr/actionBarSize"

android:background="?attr/colorPrimary"

app:popupTheme="@style/AppTheme.PopupOverlay" />

</android.support.design.widget.AppBarLayout>

<RelativeLayout

android:id="@+id/rlMain"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:weightSum="1"

app:layout_behavior="@string/appbar_scrolling_view_behavior">

<ProgressBar

android:id="@+id/progressBar"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerHorizontal="true"

android:layout_centerVertical="true"

android:visibility="gone" />

<android.support.v7.widget.RecyclerView

android:id="@+id/recyclerView"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_margin="10dp"

android:clipToPadding="false"

android:divider="@null"

android:dividerHeight="5dp"

android:overScrollMode="never"

android:scrollbars="vertical" />

</RelativeLayout>

</android.support.design.widget.CoordinatorLayout>

AndroidManifest

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.firebaseintegration">

<uses-permission android:name="android.permission.INTERNET" />

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<uses-permission android:name="android.permission.CAMERA" />

<uses-permission android:name="android.permission.CALL_PHONE" />

<application

android:name=".activity.App"

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:supportsRtl="true"

android:theme="@style/AppTheme.NoActionBar">

<activity

android:name=".activity.SplashScreen"

android:screenOrientation="portrait"

android:theme="@style/AppTheme.NoActionBar"

android:windowSoftInputMode="stateHidden">

<intent-filter>

</intent-filter>

</activity>

<activity

android:name=".activity.LoginActivity"

android:screenOrientation="portrait"

android:theme="@style/AppTheme.NoActionBar"

android:windowSoftInputMode="stateHidden" />

<activity

android:name=".activity.RegisterActivity"

android:screenOrientation="portrait"

android:theme="@style/AppTheme.NoActionBar"

android:windowSoftInputMode="stateHidden" />

<activity

android:name=".activity.ForgotPasswordActivity"

android:screenOrientation="portrait"

android:theme="@style/AppTheme.NoActionBar"

android:windowSoftInputMode="stateHidden" />

<activity

android:name=".activity.MainActivity"

android:screenOrientation="portrait"

android:theme="@style/AppTheme.NoActionBar"

android:windowSoftInputMode="stateHidden" />

<activity

android:name=".conversation.ConversationActivity"

android:screenOrientation="portrait"

android:theme="@style/AppTheme.NoActionBar"

android:windowSoftInputMode="stateHidden" />

<activity

android:name=".conversation.FullScreenImageActivity"

android:screenOrientation="portrait"

android:theme="@style/AppTheme.NoActionBar"

android:windowSoftInputMode="stateHidden" />

<intent-filter>

</intent-filter>

</service>

<intent-filter>

</intent-filter>

</service>

</application>

</manifest>

Full Source Code Download Here

https://github.com/sanjaymangaroliya/Firebase-Chat

Android Guide

Wednesday 4 January 2017

Firebase Authentication And Chat Module In Android

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