fix Github action

.github/workflows/main.yml

@@ -39,20 +39,29 @@ jobs:
     steps:
       # Setup
       - uses: actions/checkout@v1
-      - uses: actions/setup-java@v1
-        with:
-          java-version: '13.x'
-      - uses: subosito/flutter-action@v1
-        with:
-          channel: 'stable'
       # Release
-      - run: |
+      - name: Create artifact
+        run: |
           rm -rf nomeyho_clock/ios
           rm -rf nomeyho_clock/android
           rm -rf nomeyho_clock/web
-      - run: zip -r nomeyho_clock.zip ./nomeyho_clock ./flutter_clock_helper
-      # Artifacts
-      - uses: actions/upload-artifact@v1
+          zip -r nomeyho_clock.zip ./nomeyho_clock ./flutter_clock_helper
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1.0.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          draft: false
+          prerelease: false
+      - name: Upload Release Asset
+        uses: actions/upload-release-asset@v1.0.1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          name: nomeyho_clock.zip
-          path: nomeyho_clock.zip
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./my-nomeyho_clock.zip
+          asset_name: my-nomeyho_clock.zip
+          asset_content_type: application/zip

nomeyho_clock/lib/widget/clock_painter.dart

@@ -0,0 +1,46 @@
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+
+/// [CustomPainter] that draws a clock hand.
+class HandPainter extends CustomPainter {
+  HandPainter({
+    @required this.handSize,
+    @required this.lineWidth,
+    @required this.angleRadians,
+    @required this.color,
+  })  : assert(handSize != null),
+        assert(lineWidth != null),
+        assert(angleRadians != null),
+        assert(color != null),
+        assert(handSize >= 0.0),
+        assert(handSize <= 1.0);
+
+  double handSize;
+  double lineWidth;
+  double angleRadians;
+  Color color;
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final center = (Offset.zero & size).center;
+    // We want to start at the top, not at the x-axis, so add pi/2.
+    final angle = angleRadians - math.pi / 2.0;
+    final length = size.shortestSide * 0.5 * handSize;
+    final position = center + Offset(math.cos(angle), math.sin(angle)) * length;
+    final linePaint = Paint()
+      ..color = color
+      ..strokeWidth = lineWidth
+      ..strokeCap = StrokeCap.square;
+
+    canvas.drawLine(center, position, linePaint);
+  }
+
+  @override
+  bool shouldRepaint(HandPainter oldDelegate) {
+    return oldDelegate.handSize != handSize ||
+        oldDelegate.lineWidth != lineWidth ||
+        oldDelegate.angleRadians != angleRadians ||
+        oldDelegate.color != color;
+  }
+}