- Android Support v4 (Development Framework) 
              The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see 
Understanding the Android Support Library.
 
            - AndroidX Activity (Utility) 
              provides the base Activity subclass and the relevant hooks to build a composable structure on top.
 
            - Android Jetpack Annotations (Utility) 
              library that contains the annotations for Android Jetpack.
 
            - AppCompat (Utility) 
              support newer Android features on older Android versions.
 
            - Browser (Utility) 
              display webpages in the user's default browser.
 
            - Concurrent (Utility) 
              AndroidX library to help move tasks off the main thread with coroutines and take advantage of ListenableFuture.
 
            - Androidx Core (Utility) 
              a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
 
            - Android Emoji2 Compat (UI Component) 
              core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
 
            - Lifecycle (Utility) 
              perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
 
            - Loader (Utility) 
              library to load data for your UI that survives configuration changes.
 
            - ProfileInstaller (Utility) 
              AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
 
            - Startup (Utility) 
              AndroidX library to implement a straightforward, performant way to initialize components at app startup.
 
            - Vectordrawable (UI Component) 
              AndroidX library to render vector graphics.
 
            - Android Jetpack VersionedParcelable (Utility) 
              Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
 
            - Jetpack WindowManager Library (Utility) 
              enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.
 
            - ZXing Android Embedded (Utility) 
              Barcode scanning library for Android, using ZXing for decoding.
 
            - File Picker (UI Component) 
              allows to use a native file explorer to pick single or multiple absolute file paths, with extensions filtering support.
 
            - share_plus (Utility) 
               
            - Flutter (Development Framework) 
              a cross-platform development kit created by Google, based on the Dart programming language.
 
            - url_launcher (Utility) 
              a Flutter plugin for launching a URL.