82 lines
2.4 KiB
Dart
82 lines
2.4 KiB
Dart
import 'package:auto_gpt_flutter_client/constants/app_colors.dart';
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import 'package:flutter/material.dart';
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class LoadingIndicator extends StatefulWidget {
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final bool isLoading;
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const LoadingIndicator({Key? key, required this.isLoading}) : super(key: key);
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@override
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_LoadingIndicatorState createState() => _LoadingIndicatorState();
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}
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class _LoadingIndicatorState extends State<LoadingIndicator>
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with SingleTickerProviderStateMixin {
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late AnimationController _controller;
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@override
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void initState() {
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super.initState();
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_controller = AnimationController(
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duration: const Duration(seconds: 2),
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vsync: this,
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)..repeat();
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return LayoutBuilder(
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builder: (context, constraints) {
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double width =
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(constraints.maxWidth >= 1000) ? 850 : constraints.maxWidth - 65;
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return SizedBox(
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width: width,
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height: 4.0,
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child: widget.isLoading
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? AnimatedBuilder(
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animation: _controller,
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builder: (context, child) {
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return ShaderMask(
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shaderCallback: (rect) {
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return LinearGradient(
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begin: Alignment.centerLeft,
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end: Alignment.centerRight,
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colors: [
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Colors.grey[400]!,
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AppColors.primaryLight,
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Colors.white,
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Colors.grey[400]!,
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],
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stops: [
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_controller.value - 0.5,
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_controller.value - 0.25,
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_controller.value,
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_controller.value + 0.25,
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],
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).createShader(rect);
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},
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child: Container(
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width: width,
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height: 4.0,
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color: Colors.white,
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),
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);
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},
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)
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: Container(
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color: Colors.grey[400],
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),
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);
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},
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);
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}
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}
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