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Expert Android Programming

Expert Android Programming

By : Prajyot Mainkar
1 (1)
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Expert Android Programming

Expert Android Programming

1 (1)
By: Prajyot Mainkar

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.
Table of Contents (17 chapters)
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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
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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

Improving app with battery analyser

An app should focus on preventing battery drain from occurring to improve the performance of the app and the device. In order to reduce the battery usage of an app, the battery usage of the app should be determined. For this purpose, a battery analyzer has to be used to determine how your app uses battery and how performance could be improved.

Battery Stats collects battery data from your device. It creates a dump of all the battery data of a particular selected device using Android Debug Bridge (ADB) commands. Using these battery stats, the battery usage could be found out using a battery historian which would create a HTML file for viewing the battery stats results in a browser for user viewing.

A graphical representation battery historian of the live Zomato app is shown in the figure below:

A detailed explanation of the above battery usage...

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