When you run a Flutter project, it builds depending on which emulator or device it is running on, doing a Gradle or XCode build using the folders inside it. In short, those folders are entire apps which set the stage for the Flutter code to run .
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Flutter widgets are built using a modern framework that takes inspiration from React . The central idea is that you build your UI out of widgets. Widgets describe what their view should look like given their current configuration and state.
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