Understanding Keys in Flutter: GlobalKey, LocalKey, ValueKey and UniqueKey

How to Manage Widget Uniqueness and State in Flutter

Tomic Riedel
5 min readMay 6, 2024

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Icon by Freepik — Flaticon

In Flutter, keys play a crucial role in managing the identity of widgets within your app. They help Flutter differentiate between widgets, maintain states, and optimize the rendering process.

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Tomic Riedel

Sharing the process of building a portfolio of apps to make people more productive.