What is Android Jetpack and why should we use it?

Post date: 12, Feb 2019
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Jetpack is a group of Android software components to make it easier for you to develop considerable Android apps. These components help you support best practices, free you from writing boilerplate code, and simplify complex tasks, so you can focus on the code you are concerned about.

Jetpack contains the androidx. package libraries, unbundled from the platform APIs. This means that it gives backward compatibility and is updated more repeatedly than the Android platform, making sure you always have the interface with the latest and greatest versions of the Jetpack components.

android-jetpack

Jetpack is divided into four main areas: Architecture, Foundation, Behavior, and UI. Most of the items in Jetpack are systematically organized and categorized using existing libraries, but a few of the items are new.

Android Jetpack Components
Android Jetpack components are a collection of libraries that are individually adaptable and built to work together while taking advantage of Kotlin language features that make you more useful.

Foundation
Foundation components deliver cross-cutting functionality like backward compatibility, testing, and Kotlin language support.

All the foundation components are as follows:

AppCompat

Degrade easily on older versions of Android

Android KTX

Write better concise, idiomatic Kotlin code

Multidex

Provide support for apps along with multiple DEX files

Test

An Android testing framework intended for unit and runtime UI tests

Architecture
Architecture components, basically help design robust, testable and maintainable apps.

Data Binding

Definitely, bind observable data to UI elements

Lifecycles

Organize your activity and fragment lifecycles

LiveData

Notify views while underlying database changes

Navigation

Handle everything essential or needed for in-app navigation

Paging

Systematically  load information on demand from your data source

Room

Effortless  SQLite database access

ViewModel

Manage UI-related data in a lifecycle– sensible way

WorkManager

Handle your Android background jobs.

Behavior
Behavior components help your app combine with standard Android services like notifications, permissions, sharing and the Assistant.

Download manager

Download manager organize and  manage large downloads

Media & playback

Backward compatible APIs especially for media playback and routing (including Google Cast)

Notifications

Provides a backward-compatible notification API supportive with Wear and Auto

Permissions

Compatibility APIs all for checking and requesting app permissions

Preferences

Construct  interactive settings screens

Sharing

Provides a share action suitable meant for an app’s action bar

Slices

Create flexible UI elements a particular that can display app data outside the app

UI
UI components provide widgets and helpers to make your app not only easy, but fabulous to use.

Animation & transitions

Advanced  widgets and transition between screens

Auto

Components to assisting develop apps for Android Auto

Emoji

Permit an up-to-date emoji font on older platforms

Fragment

A key and fundamental unit of composable UI

Layout

Layout widgets applying different algorithms

Palette

Pull purposeful information out of color palettes

TV

Components supporting to develop apps for Android TV

Wear OS by Google

Components to help develop apps design for Wear

Conclusion

In this article, you were introduced with the four main parts of Jetpack.  Some of the new libraries, like the Navigation library, will change the way you write your apps, making it easier than ever, which is also developed by Andriod app development Melbourne.