Android apps are an integral part of our lives (that is, if you carry an Android phone). They make phones smart and interesting, and they’ve changed and completely transformed how we function today. Programmers around the world are busy designing and building apps and you could be one of them too.
Here are a few android development fundamentals you should know about:
Master the Language
Android development uses Java and XML. Mastering these languages is a prerequisite for developing a robust, elegant Android App.
For Java, you’ll have to learn a few fundamentals, including:
- Java packages
- Objects & classes
- Strings, numbers, generics
- Inheritance and interfaces
Becoming Familiar with the App Development Tools & Environment
If you’re just starting off with android development, you’ll need to familiarize yourself with the development tools and integrated environment before you can build your app.
Also, familiarize yourself with source control concepts and tools like Git.
Understanding Application Components
Application components are integral parts of android app development. Each component has a specific role and a distinct life cycle. The basic components are:
Activities represent a single screen that shows a user interface, e.g., one activity can show the login page of an email app, another activity can show a list of new emails and another for composing emails.
All activities work together to form an integrated user experience.
This is a background component that runs remote processes, and doesn’t have a user interface.
This component manages application data that are either stored in the file system, on the web, or in an SQL database.
Broadcast receivers make system-wide announcements. They don’t have a UI but can create status bar notifications for alerts.
Parameters to Consider
When creating an android app, you should consider a few important parameters, including:
- Performance & responsiveness
- Lags that are over 100ms will be noticed
- Limited resources like wake-locks should be used sparingly
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