However, if the provider is placed at the top of the tree all widgets can consume the value. Provider must be placed higher place than Consumer. Consumer can recreate their own widgets by using the updated value. ChangeNotifier is a built-in class of Flutter that provides change notifications to its listeners. Provider notifies the value change to the consumer when the target value changes. In general, Provider goes with ChangeNotifier. The future provider has an initial value, which widgets can use until the Future value is resolved. Therefor, the main use-case of FutureProvider is to ensure that a null value isnt passed to any widgets.
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