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import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'dart:math' as math;
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import '../api/api_music_rank.dart';
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import '../common_widget/app_data.dart';
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import '../models/getRank_bean.dart';
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import '../common_widget/Song_widegt.dart';
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import 'music_view.dart'; // 导入MusicView
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import '../common/download_manager.dart';
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class SongRecommendationView extends StatefulWidget {
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const SongRecommendationView({super.key});
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@override
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State<SongRecommendationView> createState() => _SongRecommendationViewState();
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}
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class _SongRecommendationViewState extends State<SongRecommendationView> with TickerProviderStateMixin {
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bool isLoading = false;
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List rankNames = [];
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List rankSingerName = [];
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List rankCoverPath = [];
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List rankMusicPath = [];
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List rankMid = [];
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List<double> relevanceValues = [];
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List<Song> songs = [];
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final downloadManager = Get.put(DownloadManager());
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late AnimationController _animationController;
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late List<Animation<double>> _circleFadeInAnimations;
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late List<AnimationController> _dotAnimationControllers;
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@override
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void initState() {
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super.initState();
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_loadRecommendedSongs();
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_animationController = AnimationController(
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duration: const Duration(seconds: 2),
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vsync: this,
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)..repeat(reverse: true);
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_circleFadeInAnimations = [];
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_dotAnimationControllers = [];
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}
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Future<void> _loadRecommendedSongs() async {
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setState(() {
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isLoading = true;
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});
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try {
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RankBean bean2 = await GetRank().getRank(Authorization: AppData().currentToken);
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if (bean2.code != 200) return;
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rankNames.clear();
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rankSingerName.clear();
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rankCoverPath.clear();
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rankMusicPath.clear();
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relevanceValues.clear();
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setState(() {
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List<int> ids = bean2.data!.take(6).map((data) => data.id!).toList();
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rankNames = bean2.data!.take(6).map((data) => data.name!).toList();
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rankSingerName = bean2.data!.take(6).map((data) => data.singerName!).toList();
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rankCoverPath = bean2.data!.take(6).map((data) => data.coverPath == '' ? 'https://api.aspark.cc/image/1/6759856d288fd.jpg' : data.coverPath).toList();
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rankMusicPath = bean2.data!.take(6).map((data) => data.musicPath ?? '').toList();
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rankMid = bean2.data!.take(6).map((data) => data.mid).toList();
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songs.clear();
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for (int i = 0; i < rankNames.length; i++) {
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songs.add(Song(
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artistPic: rankCoverPath[i],
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title: rankNames[i],
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artist: rankSingerName[i],
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musicurl: rankMusicPath[i],
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pic: rankCoverPath[i],
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id: ids[i],
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likes: null,
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collection: null,
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mid: rankMid[i],
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));
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relevanceValues.add(0.75);
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}
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});
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} catch (e) {
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print('Error fetching data: $e');
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}
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setState(() {
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isLoading = false;
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});
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_resetCircleAnimations();
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}
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void _resetCircleAnimations() {
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_circleFadeInAnimations.clear();
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for (final controller in _dotAnimationControllers) {
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controller.dispose();
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}
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_dotAnimationControllers.clear();
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for (int i = 0; i < songs.length; i++) {
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final fadeIn = Tween<double>(begin: 0.0, end: 1.0).animate(
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CurvedAnimation(
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parent: _animationController,
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curve: Interval(i * 0.1, (i + 1) * 0.1, curve: Curves.easeInOut),
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),
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);
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_circleFadeInAnimations.add(fadeIn);
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final dotController = AnimationController(
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duration: Duration(milliseconds: (2000 - relevanceValues[i] * 1500).toInt()),
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vsync: this,
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)..repeat(reverse: true);
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_dotAnimationControllers.add(dotController);
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}
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_animationController.forward(from: 0);
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}
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double _generateRelevance() {
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return 0.6 + math.Random().nextDouble() * 0.4;
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}
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double _getCircleSize(double relevance, Size screenSize) {
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return 0.08 * screenSize.width + (relevance * 80); // 调整按钮大小
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}
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// 计算按钮位置
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Map<String, double> _getCirclePosition(int index, int totalItems, Size screenSize, Offset refreshButtonPosition) {
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final radius = math.min(screenSize.width, screenSize.height) * 0.28; // 基于屏幕大小计算半径
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final angle = (index * 2 * math.pi / totalItems) - math.pi / 2; // 计算每个按钮的角度
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return {
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'left': refreshButtonPosition.dx + radius * math.cos(angle), // 计算按钮的水平位置
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'top': refreshButtonPosition.dy + radius * math.sin(angle), // 计算按钮的垂直位置
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};
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}
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// 光点动画控制
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Color _getCircleColor(double relevance) {
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return Color(0xFFB2FF59).withOpacity(0.3); // 使用透明的绿色
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}
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@override
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Widget build(BuildContext context) {
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final screenSize = MediaQuery.of(context).size;
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final safeAreaPadding = MediaQuery.of(context).padding;
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// 获取刷新按钮的位置
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final refreshButtonPosition = Offset(screenSize.width / 2, screenSize.height / 2);
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return Container(
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decoration: const BoxDecoration(
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image: DecorationImage(
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image: AssetImage("assets/img/app_bg.png"),
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fit: BoxFit.cover,
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),
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),
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child: Scaffold(
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backgroundColor: Colors.transparent,
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body: SafeArea(
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child: Stack(
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children: [
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Positioned(
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top: 20,
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left: 0,
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right: 0,
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child: Center(
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child: Text(
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'知音推荐',
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style: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.bold,
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color: Colors.black.withOpacity(0.8),
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),
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),
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),
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),
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Center(
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child: Stack(
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alignment: Alignment.center,
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children: [
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// 画连接线
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CustomPaint(
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size: Size(screenSize.width, screenSize.height),
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painter: LinePainter(
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recommendedSongs: songs,
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relevanceValues: relevanceValues,
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screenSize: screenSize,
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lineAnimation: _animationController,
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refreshButtonPosition: refreshButtonPosition,
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),
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),
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// 画六个圆圈按钮
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if (!isLoading)
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Stack(
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children: List.generate(6, (index) {
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final song = songs[index];
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final relevance = relevanceValues[index];
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final size = _getCircleSize(relevance, screenSize);
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final position = _getCirclePosition(index, songs.length, screenSize, refreshButtonPosition);
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return AnimatedPositioned(
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duration: Duration(milliseconds: 500),
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left: position['left']! - size / 2,
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top: position['top']! - size / 2 - safeAreaPadding.top + 1,
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child: FadeTransition(
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opacity: _circleFadeInAnimations.isNotEmpty && index < _circleFadeInAnimations.length
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? _circleFadeInAnimations[index]
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: AlwaysStoppedAnimation(0.0),
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child: SongCircleButton(
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relevance: relevance,
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size: size,
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songTitle: song.title ?? '',
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artistName: song.artist ?? '',
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relevancePercentage: (relevance * 100).toInt(),
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songIndex: index,
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songList: songs,
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onPressed: () {
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print("Tapped on song: ${song.title} by ${song.artist}");
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => MusicView(
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songList: songs,
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initialSongIndex: index,
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onSongStatusChanged: (index, isCollected, isLiked) {
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setState(() {
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songs[index].collection = isCollected;
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songs[index].likes = isLiked;
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downloadManager.updateSongInfo(songs[index].id, isCollected, isLiked);
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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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),
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),
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);
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}),
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),
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..._dotAnimationControllers.asMap().entries.map((entry) {
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final index = entry.key;
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final dotController = entry.value;
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return AnimatedBuilder(
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animation: dotController,
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builder: (context, child) {
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final progress = dotController.value;
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final position = _getCirclePosition(index, songs.length, screenSize, refreshButtonPosition);
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final radius = math.min(screenSize.width, screenSize.height) * 0.28;
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final angle = (index * 2 * math.pi / songs.length) - math.pi / 2;
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final dotPosition = Offset(
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position['left']! - progress * (radius - 60) * math.cos(angle),
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position['top']! - progress * (radius - 60) * math.sin(angle),
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);
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return Positioned(
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left: dotPosition.dx - 4,
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top: dotPosition.dy - 4,
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child: Container(
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width: 8,
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height: 8,
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.6),
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shape: BoxShape.circle,
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boxShadow: [
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BoxShadow(
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color: Colors.white.withOpacity(0.4),
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blurRadius: 8,
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spreadRadius: 3,
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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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);
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}).toList(),
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// 中间的刷新按钮
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Container(
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width: 80,
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height: 80,
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decoration: BoxDecoration(
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color: Colors.blue,
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shape: BoxShape.circle,
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boxShadow: [
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BoxShadow(
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color: Colors.blue.withOpacity(0.3),
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blurRadius: 15,
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spreadRadius: 5,
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),
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],
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),
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child: IconButton(
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icon: Icon(
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isLoading ? Icons.hourglass_empty : Icons.refresh,
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color: Colors.white,
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size: 30,
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),
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onPressed: () {
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if (!isLoading) {
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_animationController.reverse(from: 1);
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Future.delayed(const Duration(milliseconds: 500), () {
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_loadRecommendedSongs();
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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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),
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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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}
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}
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class LinePainter extends CustomPainter {
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final List recommendedSongs;
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final List<double> relevanceValues;
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final Size screenSize;
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final Animation<double> lineAnimation;
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final Offset refreshButtonPosition;
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LinePainter({
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required this.recommendedSongs,
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required this.relevanceValues,
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required this.screenSize,
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required this.lineAnimation,
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required this.refreshButtonPosition,
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});
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@override
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void paint(Canvas canvas, Size size) {
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final center = refreshButtonPosition; // 使用刷新按钮的坐标
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for (int i = 0; i < recommendedSongs.length; i++) {
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final relevance = relevanceValues[i];
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final position = _getCirclePosition(i, recommendedSongs.length, size);
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final end = Offset(center.dx + position['left']!, center.dy + position['top']!);
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final paint = Paint()
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..color = Colors.grey.withOpacity(0.2) // 浅灰色，透明度为0.5
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..strokeWidth = 0.01 + math.pow(relevance, 2) * 10;
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// 确保从圆心开始绘制连接线
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canvas.drawLine(center, end, paint);
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}
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}
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Map<String, double> _getCirclePosition(int index, int totalItems, Size size) {
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final radius = math.min(size.width, size.height) * 0.28;
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final angle = (index * 2 * math.pi / totalItems) - math.pi / 2;
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return {
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'left': radius * math.cos(angle),
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'top': radius * math.sin(angle),
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};
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}
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@override
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bool shouldRepaint(CustomPainter oldDelegate) {
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return false;
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}
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}
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class SongCircleButton extends StatelessWidget {
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final double relevance;
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final double size;
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final String songTitle;
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final String artistName;
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final int relevancePercentage;
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final int songIndex;
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final List<Song> songList;
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final VoidCallback onPressed;
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const SongCircleButton({
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required this.relevance,
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required this.size,
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required this.songTitle,
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required this.artistName,
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required this.relevancePercentage,
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required this.songIndex,
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required this.songList,
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required this.onPressed,
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});
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Color _getCircleColor() {
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return Color(0xFFFFC1E3); // 浅粉色
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}
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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onTap: onPressed, // 绑定点击事件
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child: Container(
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width: size,
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height: size,
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decoration: BoxDecoration(
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color: _getCircleColor(),
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borderRadius: BorderRadius.circular(size / 2), // 圆形按钮
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boxShadow: [
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BoxShadow(
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color: _getCircleColor().withOpacity(0.6), // 浅粉色光晕效果
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blurRadius: 12, // 光晕模糊度
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spreadRadius: 8, // 光晕扩散度
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),
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],
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),
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child: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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'',
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style: TextStyle(
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color: Colors.white,
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 4),
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Text(
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songTitle,
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textAlign: TextAlign.center,
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style: const TextStyle(
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color: Colors.white,
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fontWeight: FontWeight.bold,
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fontSize: 14,
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),
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),
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const SizedBox(height: 2),
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Text(
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artistName,
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textAlign: TextAlign.center,
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style: TextStyle(
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color: Colors.white70,
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fontSize: 12,
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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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);
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}
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}
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