wangjia
018180de8c
修复①请求级重试：新增 RetryInterceptor，网络层失败重试 3 次间隔递增 1s→2s→4s；GET 全重试，写操作仅在连接未建立时重试以防重复提交。 connectTimeout 5s→8s。 修复②连通性：启动首检改退避重试 4s→8s→12s，根治跨境冷启动假离线； 新增检测中状态 + retry()；登录页/全局离线提示加 NetworkRetryButton， 重试中转圈、结果 SnackBar 反馈。 121 个测试通过，analyze 无 error。todo #52。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
66 lines
2.3 KiB
Dart
66 lines
2.3 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../core/theme/app_theme.dart';
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import '../providers/connectivity_provider.dart';
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/// 离线提示里的「重试」按钮：
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/// - 检测中显示转圈 +「重试中…」（过程可感知）
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/// - 重试结束用 SnackBar 反馈成功/失败（结果可感知）
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///
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/// [foreground] 适配不同底色（红色横幅用白字，琥珀框用深色）。
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class NetworkRetryButton extends ConsumerWidget {
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final Color foreground;
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const NetworkRetryButton({super.key, this.foreground = Colors.white});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final checking = ref.watch(connectivityCheckingProvider);
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return TextButton(
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onPressed: checking
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? null
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: () async {
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final ok =
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await ref.read(connectivityProvider.notifier).retry();
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if (!context.mounted) return;
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ScaffoldMessenger.of(context)
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..hideCurrentSnackBar()
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..showSnackBar(SnackBar(
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content: Text(ok ? '已重新连接服务器' : '仍无法连接服务器，请稍后重试'),
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backgroundColor: ok ? AppTheme.success : AppTheme.danger,
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duration: const Duration(seconds: 2),
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behavior: SnackBarBehavior.floating,
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));
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},
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style: TextButton.styleFrom(
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foregroundColor: foreground,
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minimumSize: const Size(0, 32),
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padding: const EdgeInsets.symmetric(horizontal: 10),
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tapTargetSize: MaterialTapTargetSize.shrinkWrap,
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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if (checking)
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SizedBox(
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width: 14,
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height: 14,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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valueColor: AlwaysStoppedAnimation<Color>(foreground),
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),
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)
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else
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Icon(Icons.refresh, size: 16, color: foreground),
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const SizedBox(width: 6),
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Text(
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checking ? '重试中…' : '重试',
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style: TextStyle(
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color: foreground, fontSize: 13, fontWeight: FontWeight.w600),
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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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