books

assets/draw/p05/s11.dart

@@ -0,0 +1,39 @@
+import 'dart:ui' as ui;
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+import '../components/coordinate.dart';
+
+
+/// create by 张风捷特烈 on 2020-03-19
+/// contact me by email 1981462002@qq.com
+/// 说明: 纸
+
+class Paper extends StatelessWidget {
+  const Paper({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      color: Colors.white,
+      child: CustomPaint(
+        // 使用CustomPaint
+        painter: PaperPainter(),
+      ),
+    );
+  }
+}
+
+class PaperPainter extends CustomPainter {
+  final Coordinate coordinate = Coordinate(step: 25);
+
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    coordinate.paint(canvas, size);
+  }
+
+  @override
+  bool shouldRepaint(PaperPainter oldDelegate) => false;
+}