feat(delete):删除里面文件夹

lib/lineline/dash_line.dart

@@ -0,0 +1,86 @@
+import 'package:flutter/material.dart';
+
+///@Desc 虚线
+class DashLine extends StatelessWidget {
+  final Color? color; // 虚线颜色
+  final Axis direction; // 虚线方向
+  final double? dottedLength; //虚线长度
+
+  const DashLine({
+    Key? key,
+    this.color,
+    this.direction = Axis.horizontal,
+    this.dottedLength,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return CustomPaint(
+      painter: DashedLinePainter(
+        color: color ?? const Color(0xff36C2FD),
+        direction: direction,
+        dottedLength: dottedLength,
+      ),
+    );
+  }
+}
+
+class DashedLinePainter extends CustomPainter {
+  final Color color;
+  final double width;
+  final Axis direction; //方向
+  final double? dottedLength; //虚线长度
+
+  DashedLinePainter({
+    this.width = 1,
+    this.color = Colors.black,
+    this.direction = Axis.horizontal,
+    this.dottedLength,
+});
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final Paint paint = Paint()
+      ..color = color
+      ..strokeWidth = width
+      ..style = PaintingStyle.stroke
+      ..strokeCap = StrokeCap.round
+      ..isAntiAlias = true;
+    Path dottedPath = _createDashedPath(
+      Path()
+        ..moveTo(0, 0)
+        ..lineTo(
+          direction == Axis.horizontal ? size.width : 0,
+          direction == Axis.horizontal ? 0 : size.height,
+        ),
+      length: dottedLength,
+    );
+    canvas.drawPath(dottedPath, paint);
+  }
+
+  Path _createDashedPath(Path path,{double? length}) {
+    Path targetPath = Path();
+    double dottedLength = length ?? 10;
+    double dottedGap = length ?? 10;
+    for (var metric in path.computeMetrics()) {
+      double distance = 0;
+      bool isDrawDotted = true;
+      while (distance < metric.length) {
+        if (isDrawDotted) {
+          targetPath.addPath(
+            metric.extractPath(distance, distance + dottedLength),
+            Offset.zero,
+          );
+          distance += dottedLength;
+        } else {
+          distance += dottedGap;
+        }
+        isDrawDotted = !isDrawDotted;
+      }
+    }
+    return targetPath;
+  }
+
+  @override
+  bool shouldRepaint(DashedLinePainter oldDelegate) => false;
+}

lib/lineline/time_line.dart

@@ -0,0 +1,61 @@
+import 'package:flutter/material.dart';
+
+import 'dash_line.dart';
+
+///@Desc 时间线
+class TimeLine extends StatelessWidget {
+  final bool isLast;
+  final Widget child;
+
+  const TimeLine({
+    Key? key,
+    required this.isLast,
+    required this.child,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return IntrinsicHeight(
+      child: Row(
+        children: [
+          _buildDot(),
+          const SizedBox(width: 16),
+          Expanded(child: child),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildDot() {
+    return Column(
+      children: [
+        Container(
+          width: 24,
+          height: 24,
+          decoration: const BoxDecoration(
+            shape: BoxShape.circle,
+            color: Color(0xff36C2FD),
+          ),
+          alignment: Alignment.center,
+          child: Container(
+            width: 12,
+            height: 12,
+            decoration: const BoxDecoration(
+              shape: BoxShape.circle,
+              color: Colors.white,
+            ),
+          ),
+        ),
+        if (isLast)
+          const SizedBox.shrink()
+        else
+          const Expanded(
+            child: DashLine(
+              color: Color(0xff36C2FD),
+              direction: Axis.vertical,
+            ),
+          )
+      ],
+    );
+  }
+}