Builder

It allows you to create a context.

The Builder widget in Flutter is a widget that is used to create another widget in a specific context. The builder property of the Builder widget is a function that takes a context and returns a widget. The widget returned by the builder function is created in the specific context provided to the function, allowing access to information and resources in that context.

The builder widget is often used when you need to access information or resources in a specific context, but do not want to create a nested widget or class widget to do so. Instead, you can use the Builder widget to create the widget in the desired context and access that information and resources.

In short, the Builder widget is used to create a widget in a specific context and have access to information and resources in that context.

Builder(
      builder: (context) => //widget like child
      
      )