How does provider in Flutter work?

It’s the Element’s responsibility to tell Flutter that it has changed, and it needs to be repainted. This is done this via a method called markNeedsBuild , which is called internally . This matters to us (provider users) because all objects in Provider are widgets (and elements). They know how to interface with Flutter.

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Why do we use providers?

We use Provider in order to pass the store as an attribute . By passing the store as an attribute in the Provider component, we are avoiding having to store the store as props. As we know, applications can be very complex and extensive, thus having many React components.

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How do providers work Flutter?

Provider is built using widgets . It literally creates new widget subclasses, allowing you to use all the objects in provider as if they’re just part of Flutter. This also means that provider is not cross platform. (By cross platform, I mean outside of a Flutter project.

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How do I set up a provider in Flutter?

The generics (values inside <> brackets) tell Flutter what type of provider to look for . Then Flutter goes up through the widget tree until it finds the provided value. If the value isn’t provided anywhere then an exception is thrown. Finally, once you’ve got the provider, you can call any method on it.12 Haz 2020

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