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flutter_drawing_board package
documentation
flutter_drawing_board.dart
DrawingController
painter property
painter property
dark_mode
light_mode
painter
property
RePaintNotifier
?
painter
getter/setter pair
表层画布刷新控制
Implementation
RePaintNotifier? painter;
flutter_drawing_board package
documentation
flutter_drawing_board
DrawingController
painter property
DrawingController class