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What is a “mounted” Widget?
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Auteur anonyme
07/08/2023
The correct answer is:
A Widget whose State is associated with a BuildContext
In Flutter, a "mounted" Widget refers to a Widget whose State is associated with a BuildContext. The State object of a Widget is created when the Widget is built, and it is associated with the BuildContext of that particular build.
When a Widget is marked as "mounted," it means that the Widget is currently part of the widget tree and is active and ready to be displayed on the screen. If a Widget is not mounted, it means that it has been removed from the widget tree, and its associated State is no longer active.
This is an important concept to be aware of when working with Flutter Widgets and managing their lifecycle. For example, it's common to check if a Widget is mounted before performing certain asynchronous operations or updating the state to avoid errors when the Widget is no longer active.