Android ViewBinding Purpose & Benefits

ViewBinding is a data binding library officially introduced by Android, which serves to simplify the interaction between views and code, and provides a type-safe way to access view properties and methods.

Specifically, ViewBinding can assist developers in completing the following tasks:

1. Generate a binding class corresponding to the layout file: ViewBinding uses an annotation processor to create a binding class for each layout file, which contains references to all the views in the layout file.
2. Accessing views through binding class: By binding a class to a view, you can directly access various views in the layout file without manually calling the findViewById() method.
3. Provides type-safe properties and methods: In the binding class generated by ViewBinding, the properties and methods of each view are type-safe, undergoing type checking during compilation to prevent runtime errors due to type mismatches.
4. Improve performance: Compared to the traditional findViewById() method, ViewBinding uses a more efficient way to find views, which can enhance the performance of the application.

In general, ViewBinding simplifies the interaction between views and code, reduces the amount of code needed for manually finding views, and provides type-safe properties and methods, making development more convenient and efficient.