How to learn 'Android Application Development'?

 Introduction to Application Development

 What is android development?

Mobile application development is a trending skill in the programming world. It is a process of development of mobile applications by programming logic and creativity using the programming tools. And it is done by application developer.

 Who is an application developer, and what are developer's skills? 

Application developer is a programmer having expertise in programming languages and tools used in app development.  Following are some skills of application developer- 

•  Problem solving skill.
•  Expertise in Java or Kotlin programming language.
•  Knowledge of Android Studio.
•  Knowledge of database
•  Knowledge in designing tools.
•  Project management skill.
•  Teamwork

 Programming languages and tools used in development

 Java

Java is designed by James Gosling at Sun Microsystem. Java is object-oriented, multithreaded, portable and strongly typed programming language. Java is very suitable for an android application development because of its object-oriented nature. Java is 90% object-oriented language and, it uses JVM(Java Virtual Machine) for execution. JVM is very special piece of program which first converts the code in byte code and then converts it into machine code.

                              To learn Java, I'll recommend you to learn C and C++ first and after that learning java will be more easy; but you can also start directly with Java. At the same time, you also need knowledge of data structures and algorithms, because it improves the problem solving skills. You can explore many online courses and books to learn Java language. One of the best online course to learn Java is Learn JAVA Programming - Beginner to Master it is course of Prof. Abdul Bari on Udemy. And the best book to learn Java is Java: The Complete Reference by Herbert Schildt.

 Android Studio

Android studio is an Integrated Development Environment for development of android apps. Android Studio is available for windows and mac users, Android Studio offers even more features that enhance our productivity when building Android apps, such as:

•   A flexible Gradle-based build system
•   A fast and feature-rich emulator
•   A unified environment where you can develop for all Android

devices

•  Apply changes to push code and resource changes to your

running app without restarting your app

•  Lint tools to catch performance, usability, version compatibility,

and other problems common app features and import sample code

•   Extensive testing tools and frameworks
•   Code templates and GitHub integration to help you build

Android Studio is little complex IDE to understand and the main concern is you need a good resources to run it on your machine i.e. you need computer with windows 10 or higher and ram should be 4gb or higher. To learn about Android Studio there are many online videos and articles, you can also learn to use Android Studio by from their official site.

 Database

Database is very important concept of computer and internet world. Database is storage of data at the server, it includes all the data of our application. Without the data our application is just like a non-functional piece of program. Every dynamic website and application in this world has database. Like Facebook has a database which includes the information of facebook users, their photos & videos etc.

                          To handle the large amount of data of our application we need a database management system which uses query language like SQL(Structured Query Language) to insert, delete, retrieve, modify data elements in databases. Examples of database management systems are MySQL, OracleDB, IBM DB, SQLite etc.

                          For developing android application you need to have the knowledge of a databses i.e. you need practice in APIs, you need practice in SQL and for android development you need knowledge of SQLite database.

That set! These are some basic things you need to learn, and you will become an android developer. There are some other things you will get to know on your journey like version control system-git and software testing tools.