shader

Mobile-Artificial-Intelligence · Jun 27, 2024 · 7f08aee · 7f08aee
1 parent d5a56c0
commit 7f08aee
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Showing 2 changed files with 27 additions and 6 deletions.
diff --git a/lib/ui/shared/chat_widgets/chat_message.dart b/lib/ui/shared/chat_widgets/chat_message.dart
@@ -229,17 +229,22 @@ class _ChatMessageWidgetState extends State<ChatMessageWidget> with SingleTicker
   }
 
   Widget buildTypingIndicatorBar(int flex) {
+    double durationFactor = (100 - flex) / 100.0;
+    double animationOffset = Random().nextDouble();
+
     return Row(
       children: [
         Expanded(
           flex: 100 - flex,
           child: WaveGradientShader(
+            durationFactor: durationFactor,
+            animationOffset: animationOffset,
             child: Container(
               margin: const EdgeInsets.symmetric(vertical: 5),
               height: 25,
               width: 25,
               decoration: BoxDecoration(
-                color: Theme.of(context).colorScheme.surfaceDim,
+                color: Colors.white,
                 borderRadius: BorderRadius.circular(10),
               ),
             ),

diff --git a/lib/ui/shared/shaders/wave_gradient_shader.dart b/lib/ui/shared/shaders/wave_gradient_shader.dart
@@ -2,7 +2,15 @@ import 'package:flutter/material.dart';
 
 class WaveGradientShader extends StatefulWidget {
   final Widget child;
-  const WaveGradientShader({required this.child, super.key});
+  final double durationFactor;
+  final double animationOffset;
+
+  const WaveGradientShader({
+    required this.child,
+    required this.durationFactor,
+    required this.animationOffset,
+    super.key,
+  });
 
   @override
   State<WaveGradientShader> createState() => _WaveGradientShaderState();
@@ -15,9 +23,10 @@ class _WaveGradientShaderState extends State<WaveGradientShader> with SingleTick
   void initState() {
     super.initState();
     _controller = AnimationController(
-      duration: const Duration(seconds: 2),
+      value: widget.animationOffset,
+      duration: Duration(milliseconds: (3000 * widget.durationFactor).clamp(2000, 4000).toInt()),
       vsync: this,
-    )..repeat(reverse: true);
+    )..repeat();
   }
 
   @override
@@ -28,6 +37,9 @@ class _WaveGradientShaderState extends State<WaveGradientShader> with SingleTick
 
   @override
   Widget build(BuildContext context) {
+    final boundary = Theme.of(context).colorScheme.surfaceDim;
+    final wave = Theme.of(context).colorScheme.secondary;
+
     return AnimatedBuilder(
       animation: _controller,
       builder: (context, child) {
@@ -36,8 +48,12 @@ class _WaveGradientShaderState extends State<WaveGradientShader> with SingleTick
             return LinearGradient(
               begin: Alignment.centerLeft,
               end: Alignment.centerRight,
-              stops: [0.0, _controller.value, 1.0],
-              colors: const [Colors.transparent, Colors.blue, Colors.transparent],
+              stops:  [0.0, _controller.value, 1.0],
+              colors: [
+                boundary,
+                wave,
+                boundary,
+              ],
             ).createShader(bounds);
           },
           child: widget.child,