xml Extensible Markup Language
XML is designed to store data, carry data, and exchange data. It is not designed to display data.
dart_tool Dart tool development kit.idea
development environment configuration
android Android native project file
build Compile or run the product
ios Apple native project file
lib contains project-related files
ending in .dart test contains project test files ending in .dart. gitignore
git submit warehouse ignore file
.metadata one pair of the current workspace configuration record
.packages lib files ending with the absolute path to
a local path flutter_dir.iml project file configuration
pubspec.lock before the project depends on the generated file
dependent configuration pubspec.yaml, usually used to store third party Rely on
README.md Readme project information (html tag)
External Libraries Android rack package and resource files, Dart SDK files, project development rely on plug-in API
Scratches and Consoles to create temporary files and buffer lists