Mvvmlight

Practical overview of MVVM architecture

Let’s take a practical look at how to implement the MVVM architecture in a project. This involves creating a Model class, working with the Activity_Main file, and creating a ViewModel class. Each of these steps plays a crucial role in separating the graphical user interface from the business logic of the application.

Creating a model class

First, you need to create a Model class that will represent the data in your application. For example, if you’re developing a login feature, your model class could log the user’s email address and password. Keeping in mind the importance of a well-structured Model class, consider the following code to create a good Model class.

Working with the Activity_Main file

Next, you need to set up the Activity_Main file. This is the file where you will receive data from the user, such as email address and password. By adding EditText to the activity_main file, you can validate the user’s input and display the appropriate messages with the login button.

Creating the ViewModel class

Finally, it’s time to create the ViewModel class. This class will define the functionality of your application and manage the logic. It connects the model and the view, controlling the flow of data between them. To create an effective ViewModel class, you may want to consider using a structured approach similar to that of the Model class.

Defining view functions in the MainActivity file

In the MainActivity file, you can define the viewing functionality in the development of an Android application. This is the stage where the activity is introduced and the logic that implements the visual elements of the user interface design is implemented. The MainActivity file is essentially the center of the application, providing a place to manage the application lifecycle and process user interaction.