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The Flutter engine
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C++ Dart Java Objective-C++ Objective-C Python Other
  1. C++ 39.4%
  2. Dart 37.6%
  3. Java 11.8%
  4. Objective-C++ 5.0%
  5. Objective-C 2.9%
  6. Python 1.6%
  7. Other 1.7%
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.github Remove me from auto-assign list (#17446) Apr 1, 2020
assets Use the standard [[nodiscard]] attribute instead of an FML macro. (#1… Mar 11, 2020
benchmarking Gather demangled stack traces and report the same to console on crash… Mar 10, 2020
build Add libfreetype6-dev to desktop Linux dependencies (#17020) Mar 9, 2020
ci Roll src/third_party/dart 28eb884d4709..80ae6ed91d6d (2 commits) (#17515 Apr 4, 2020
common More rename from GPU thread to raster thread (#17408) Mar 31, 2020
docs Minor tweaks to the Doxygen theme. (#11576) Sep 4, 2019
e2etests/web/regular_integration_tests Add regression test for treeshaking debugFillProperties (#17325) Mar 31, 2020
examples/glfw Added an embedder example (#12808) Oct 8, 2019
flow Roll to clang11, mark 4 (#17483) Apr 2, 2020
flutter_frontend_server Add build_and_test_linux_release presubmit test (#17073) Apr 2, 2020
fml [pipeline] Add trace event for lag between target and display times (#… Apr 3, 2020
lib Remove code which skips keyEvent from input control on web (#17242) Apr 1, 2020
runtime Use const refs in for loops where reasonable (#17484) Apr 3, 2020
shell refactor: split up accessibility bridge and semantics object (#17507) Apr 3, 2020
sky Roll to clang11, mark 4 (#17483) Apr 2, 2020
testing Remove JSON codec from C++ client wrapper (#17312) Apr 2, 2020
third_party Use const refs in for loops where reasonable (#17484) Apr 3, 2020
tools Revert "[tools][fuchsia] Do not tar debug symbol CIPD uploads (#17275)" Apr 3, 2020
vulkan Remove checks for the always true using_fuchsia_sdk flag in all GN fi… Mar 24, 2020
web_sdk build a precompiled SDK with canvas kit enabled (#17115) Mar 12, 2020
.cirrus.yml Add build_and_test_linux_release presubmit test (#17073) Apr 2, 2020
.clang-format Update Objective-C column limit to 100 (#3585) Apr 11, 2017
.gitattributes Force lf-line endings for so that source offsets match across platfor… Oct 2, 2018
.gitignore [web] Engine integration test (#16930) Mar 6, 2020
AUTHORS Force orientation change when current orientation not allowed on iOS (#… Oct 31, 2019
BUILD.gn Remove JSON codec from C++ client wrapper (#17312) Apr 2, 2020
CONTRIBUTING.md [fuchsia] Add additional contributing instructions for Googlers (#16337) Feb 3, 2020
DEPS Roll src/third_party/dart 28eb884d4709..80ae6ed91d6d (2 commits) (#17515 Apr 4, 2020
Doxyfile Minor tweaks to the Doxygen theme. (#11576) Sep 4, 2019
LICENSE Update license to sync with flutter/flutter (#7611) Jan 29, 2019
README.md Readme change to trigger builds (#17398) Mar 30, 2020
analysis_options.yaml Teach frontend compiler to replace `toString` with `super.toString` f… Mar 17, 2020

README.md

Flutter Engine

Build Status - Cirrus

Flutter is Google's mobile app SDK for crafting high-quality native interfaces in record time. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.

The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.

If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at Flutter.dev. For specific information about Flutter's APIs, consider our API reference which can be found at the docs.flutter.dev.

Flutter is a fully open source project, and we welcome contributions. Information on how to get started can be found at our contributor guide.

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