Other Commonly Used Architectures in Android

There are few commonly used Android Architectures used mentioned below:

1. MVC ( Model View Controller )

MVC or Model View Controller breaks the model into three main components Model that stores the application data , View UI layer that holds the component visible on the screen and Controller that establishes the relationship between Model and the View.

2. MVP ( Model View Presenter )

To avoid complexities like maintainability, readability, scalability, and refactoring of applications we use MVP model. The basic working of this model relies of the points mentioned below:

• Communication between the View-Presenter and Presenter-Model happens with the help of Interface (also called Contract).
• There is One to One relationship between Presenter and View , One Presenter Class only manages One View at a time.
• Model and View doesn’t have any knowledge about each other.

3. MVVM ( Model View ViewModel ) :

MVVM or Model View ViewModel as the name suggest like MVC model it contains three components too Model , View and ViewModel. Features of MVVM model are mentioned below:

• ViewModel does not hold any kind of reference to the View.
• Many to-1 relationships exist between View and ViewModel.
• No triggering methods to update the View.

And we can achieve this using 2 methods:

• Using DataBinding library of Google.
• Using Tools like RxJava for Data Binding.

Android architecture contains a different number of components to support any Android device’s needs. Android software contains an open-source Linux Kernel having a collection of a number of C/C++ libraries which are exposed through application framework services. Among all the components Linux Kernel provides the main functionality of operating system functions to smartphones and Dalvik Virtual Machine (DVM) provide a platform for running an Android application.