What is Flutter widget tree?

The widget tree is how you create your UI; you position widgets within each other to build simple and complex layouts . Since just about everything in the Flutter framework is a widget, and as you start nesting them, the code can become harder to follow.8 Ara 2019

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What is the class in Flutter?

Widget class Null safety Widgets are the central class hierarchy in the Flutter framework . A widget is an immutable description of part of a user interface. Widgets can be inflated into elements, which manage the underlying render tree. Widgets themselves have no mutable state (all their fields must be final).

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What does provider do in Flutter?

The answer is simple, and the power of the Provider package is in its simplicity: Providers allow to not only expose a value, but also create/listen/dispose it . When you place a Provider widget in your widget tree all the Childs of the Provider will have access to the values exposed by it.19 May 2021

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