Book Image

Expert Android Programming

Book Image

Expert Android Programming

Overview of this book

Android O brings a number of important changes for the users as well as the developers. If you want to create smart android applications which are fast, lightweight and also highly efficient then this is the book that will solve all your problems. You will create a complex enterprise grade app in this book. You will get a quick refresher of the latest android SDK and how to configure your development environment. Then you will move onto creating app layouts, component and module building, creating smart and efficient UIs. The most important part of a modern day app is how real time they are. With this book, you will create a smooth back-end for your app, ensure dynamic and real time communication between different app layers. As we move on, you will learn to leverage the different Android APIs and create an efficient SQLite data layer for your apps. You will implement effective testing techniques to make your app reliable and robust and finally you will learn to deploy it efficiently. The multiple stages of android development will also be simplified by giving you an industry standard set of best practices.

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Table of Contents (17 chapters)
Preface
Preface
Introduction
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
Understanding the Gradle System
Understanding the Gradle System
Stepping into the Gradle world
Adding Gradle to your app
Adding a new Gradle library
Summary
2
Exploring Android Studio Developer Tools
Exploring Android Studio Developer Tools
APK Analyzer
Understanding basic battery drain
Batterystats and Battery Historian
Memory Monitor
Summary
3
Leap into the Android Support Library
Leap into the Android Support Library
The Android Support Library
Summary
4
Google Play Services
Google Play Services
The architecture
Google Maps
Summary
5
Material Design
Material Design
Wireframing and tools to gather feedback
Material UI for Android developers
Summary
6
SOLID Android Development and Its Design Principles
SOLID Android Development and Its Design Principles
Single Responsibility Principle
Open-Closed Principle
Liskov Substitution Principle
Interface Segregation Principle
Dependency Inversion Principle
Summary
7
Understanding MVC, MVP, MVVM and Clean Arch Patterns
Understanding MVC, MVP, MVVM and Clean Arch Patterns
MVC (Model View Controller)
MVP (Model View Presenter)
MVVM
Clean Architecture Pattern
Summary
8
Decision Making
Decision Making
How to begin
Creational patterns
Structural patterns
Behavioral pattern
Summing up MVP and MVC
Refactoring your app
Summary
9
Performance Matters
Performance Matters
Improving display performances
Effective consumption of battery in Zomato
Improving app with battery analyser
Summary
10
Building Restaurant finder
Building Restaurant finder
App sections
Summary
11
Backend Service
Backend Service
Realtime Database
Firebase Cloud Messaging
Remote configuration
Authentication
Storage
Summary
12
App Quality Service
App Quality Service
Firebase Test Lab
Summary
13
Grow Up
Grow Up
Dynamic links
App indexing
Admob
14
Testing
Testing
Testing Mechanisms (Functionality , Performance , Security , and Compatibility)
Testing UI for Multiple Apps
Summary
15
Preparing for Google Play
Preparing for Google Play
Versioning Your App
Preconfiguring to automatically Sign Your APK
Summary
16
Understanding App Store Analytics for Optimization
Understanding App Store Analytics for Optimization
Keep an eye on Google Play policies
Summary

Realtime Database

The Firebase Realtime Database is a NoSQL cloud-hosted database. The data is stored as JSON and it allows syncing of data across all the clients in real time. No matter which platform you are building on, using Firebase, all your clients share one realtime database instance. Firebase uses a data synchronization mechanism with which, every time the data changes, any connected device can receive new updates within no time.

This is how the Firebase uses realtime sync, rather than just a typical HTTP request:

Realtime Sync of Data across several devices

One of the biggest pains for developers is to ensure data remains available, even when the app is offline. Firebase-built apps allow apps to remain responsive when your device goes offline. This is possible as Firebase Realtime Database SDK maintains your data to disk, ensuring that it can be available while offline...

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