first commit

2025-11-13 15:45:28 +08:00
commit 6b321890c0
54 changed files with 8412 additions and 0 deletions
--- a/lib/widgets/error_state_widget.dart
+++ b/lib/widgets/error_state_widget.dart
@@ -0,0 +1,141 @@
+import 'package:flutter/material.dart';
+import '../theme/app_theme.dart';
+
+/// 错误状态组件
+/// 用于显示错误时的友好提示
+class ErrorStateWidget extends StatelessWidget {
+  final String? title;
+  final String? message;
+  final String? actionLabel;
+  final VoidCallback? onRetry;
+  final IconData icon;
+  final bool showDetails;
+
+  const ErrorStateWidget({
+    super.key,
+    this.title,
+    this.message,
+    this.actionLabel,
+    this.onRetry,
+    this.icon = Icons.error_outline,
+    this.showDetails = false,
+  });
+
+  /// 默认错误状态
+  factory ErrorStateWidget.generic({
+    String? message,
+    VoidCallback? onRetry,
+  }) {
+    return ErrorStateWidget(
+      title: '加载失败',
+      message: message ?? '请检查网络连接后重试',
+      actionLabel: '重试',
+      onRetry: onRetry,
+    );
+  }
+
+  /// 权限错误
+  factory ErrorStateWidget.permission({
+    VoidCallback? onRetry,
+  }) {
+    return ErrorStateWidget(
+      icon: Icons.security,
+      title: '权限未授予',
+      message: '需要授予应用使用权限才能追踪时间\n\n请在系统设置中开启"使用情况访问权限"',
+      actionLabel: '去设置',
+      onRetry: onRetry,
+    );
+  }
+
+  /// 网络错误
+  factory ErrorStateWidget.network({
+    VoidCallback? onRetry,
+  }) {
+    return ErrorStateWidget(
+      icon: Icons.wifi_off,
+      title: '网络连接失败',
+      message: '无法连接到服务器\n\n请检查网络连接后重试',
+      actionLabel: '重试',
+      onRetry: onRetry,
+    );
+  }
+
+  /// 数据加载错误
+  factory ErrorStateWidget.dataLoad({
+    String? message,
+    VoidCallback? onRetry,
+  }) {
+    return ErrorStateWidget(
+      icon: Icons.cloud_off,
+      title: '数据加载失败',
+      message: message ?? '无法加载数据，请稍后重试',
+      actionLabel: '重试',
+      onRetry: onRetry,
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+
+    return Center(
+      child: Padding(
+        padding: const EdgeInsets.all(32),
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Container(
+              width: 100,
+              height: 100,
+              decoration: BoxDecoration(
+                color: AppTheme.errorColor.withOpacity(0.1),
+                shape: BoxShape.circle,
+              ),
+              child: Icon(
+                icon,
+                size: 56,
+                color: AppTheme.errorColor,
+              ),
+            ),
+            const SizedBox(height: 24),
+            Text(
+              title ?? '出错了',
+              style: theme.textTheme.titleLarge?.copyWith(
+                fontWeight: FontWeight.w600,
+                color: theme.colorScheme.error,
+              ),
+              textAlign: TextAlign.center,
+            ),
+            if (message != null) ...[
+              const SizedBox(height: 12),
+              Text(
+                message!,
+                style: theme.textTheme.bodyMedium?.copyWith(
+                  color: theme.colorScheme.onSurface.withOpacity(0.7),
+                ),
+                textAlign: TextAlign.center,
+              ),
+            ],
+            if (actionLabel != null && onRetry != null) ...[
+              const SizedBox(height: 24),
+              ElevatedButton.icon(
+                onPressed: onRetry,
+                icon: const Icon(Icons.refresh),
+                label: Text(actionLabel!),
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: AppTheme.errorColor,
+                  foregroundColor: Colors.white,
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 24,
+                    vertical: 12,
+                  ),
+                ),
+              ),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+}
+