26f94bdd49
Make the examples/catalog instructions a bit less confusing: * Make the README.md file provide explicit instructions about how to run each example. * Try to clarify that the lib/main.dart message is instructional and not an error message. Additionally, adjust examples/layers/lib/main.dart to be consistent with examples/catalog/lib/main.dart. Fixes #22640. Testing Done: * Ran `flutter run` from examples/catalog and from examples/layers, saw the updated message.
Examples of Flutter's layered architecture
This directory contains a number of self-contained examples that illustrate Flutter's layered architecture.
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raw/ These examples show how to program against the lowest layer of the system. They manually receive input packets and construct composited scenes.
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rendering/ These examples use Flutter's render tree to structure your app using a retained tree of visual objects. These objects coordinate to determine their size and position on screen and to handle events.
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widgets/ These examples use Flutter's widgets to build more elaborate apps using a reactive framework.
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services/ These examples use services available in Flutter to interact with the host platform.
To run each example, specify the demo file on the flutter run
command line, for example:
flutter run raw/spinning_square.dart
flutter run rendering/spinning_square.dart
flutter run widgets/spinning_square.dart