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This yak shave went as follows: Fix https://github.com/flutter/flutter/issues/8795 by adding stocks to the examples README. Notice the layers entry in that README isn't quite right either. Update that. Check the layers/README file is worth pointing at. Update the layers/README. Let's run some of the layer tests to see if they still work. Oops, need to update them to gradle. Ok let's try running them again. Oops, sector is broken. Add a test for sector. Fix sector. Find you need to add an assert to a const constructor. Notice we need to turn const asserts on for the analyzer. Notice the analysis_options files are out of sync with each other and with the full list of lints. Turn on the lints that should be on. Fix the bugs that finds.
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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