From debfd6903e47895f008921859e52c260c2c4c149 Mon Sep 17 00:00:00 2001
From: adityamahendrap <ptadityamahendrap@gmail.com>
Date: Tue, 17 Sep 2024 21:48:21 +0800
Subject: [PATCH] add gradient

---
 lib/curved_navigation_bar.dart  | 18 ++++++++++++++----
 lib/src/nav_custom_painter.dart |  7 +++++--
 2 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/lib/curved_navigation_bar.dart b/lib/curved_navigation_bar.dart
index f9c2016..a7b923e 100644
--- a/lib/curved_navigation_bar.dart
+++ b/lib/curved_navigation_bar.dart
@@ -19,6 +19,7 @@ class CurvedNavigationBar extends StatefulWidget {
   final Duration animationDuration;
   final double height;
   final double? maxWidth;
+  final Gradient? gradient;
 
   CurvedNavigationBar({
     Key? key,
@@ -33,6 +34,7 @@ class CurvedNavigationBar extends StatefulWidget {
     this.animationDuration = const Duration(milliseconds: 600),
     this.height = 75.0,
     this.maxWidth,
+    this.gradient,
   })  : letIndexChange = letIndexChange ?? ((_) => true),
         assert(items.isNotEmpty),
         assert(0 <= index && index < items.length),
@@ -137,9 +139,13 @@ class CurvedNavigationBarState extends State<CurvedNavigationBar>
                             0,
                             -(1 - _buttonHide) * 80,
                           ),
-                          child: Material(
-                            color: widget.buttonBackgroundColor ?? widget.color,
-                            type: MaterialType.circle,
+                          child: Container(
+                            decoration: BoxDecoration(
+                              color:
+                                  widget.buttonBackgroundColor ?? widget.color,
+                              shape: BoxShape.circle,
+                              gradient: widget.gradient,
+                            ),
                             child: Padding(
                               padding: const EdgeInsets.all(8.0),
                               child: _icon,
@@ -154,7 +160,11 @@ class CurvedNavigationBarState extends State<CurvedNavigationBar>
                       bottom: 0 - (75.0 - widget.height),
                       child: CustomPaint(
                         painter: NavCustomPainter(
-                            _pos, _length, widget.color, textDirection),
+                            _pos,
+                            _length,
+                            widget.color,
+                            textDirection,
+                            widget.gradient),
                         child: Container(
                           height: 75.0,
                         ),
diff --git a/lib/src/nav_custom_painter.dart b/lib/src/nav_custom_painter.dart
index bb0965d..51f3a19 100644
--- a/lib/src/nav_custom_painter.dart
+++ b/lib/src/nav_custom_painter.dart
@@ -5,9 +5,10 @@ class NavCustomPainter extends CustomPainter {
   late double s;
   Color color;
   TextDirection textDirection;
+  Gradient? gradient;
 
-  NavCustomPainter(
-      double startingLoc, int itemsLength, this.color, this.textDirection) {
+  NavCustomPainter(double startingLoc, int itemsLength, this.color,
+      this.textDirection, this.gradient) {
     final span = 1.0 / itemsLength;
     s = 0.2;
     double l = startingLoc + (span - s) / 2;
@@ -18,6 +19,8 @@ class NavCustomPainter extends CustomPainter {
   void paint(Canvas canvas, Size size) {
     final paint = Paint()
       ..color = color
+      ..shader =
+          gradient?.createShader(Rect.fromLTWH(0, 0, size.width, size.height))
       ..style = PaintingStyle.fill;
 
     final path = Path()