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ytc1012
414
lib/screens/data_privacy_screen.dart
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414
lib/screens/data_privacy_screen.dart
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import 'package:flutter/material.dart';
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import 'package:flutter/foundation.dart' show kIsWeb;
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import '../theme/app_theme.dart';
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import '../database/app_usage_dao.dart';
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import '../database/daily_stats_dao.dart';
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class DataPrivacyScreen extends StatefulWidget {
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const DataPrivacyScreen({super.key});
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@override
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State<DataPrivacyScreen> createState() => _DataPrivacyScreenState();
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}
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class _DataPrivacyScreenState extends State<DataPrivacyScreen> {
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final AppUsageDao _appUsageDao = AppUsageDao();
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final DailyStatsDao _dailyStatsDao = DailyStatsDao();
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bool _isDeleting = false;
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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return Scaffold(
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appBar: AppBar(
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title: const Text('数据与隐私'),
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),
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body: SingleChildScrollView(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 隐私说明
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Card(
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Icon(Icons.security, color: AppTheme.primaryColor),
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const SizedBox(width: 8),
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Text(
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'隐私保护',
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style: theme.textTheme.titleMedium?.copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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],
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),
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const SizedBox(height: 16),
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_buildPrivacyItem(
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theme,
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Icons.storage,
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'本地存储',
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'所有数据仅存储在您的设备本地，不会上传到任何服务器。',
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),
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_buildPrivacyItem(
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theme,
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Icons.lock,
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'数据加密',
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'敏感数据在存储时进行加密处理，确保数据安全。',
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),
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_buildPrivacyItem(
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theme,
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Icons.visibility_off,
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'隐私保护',
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'我们不会收集您的个人信息，也不会追踪您的具体操作内容。',
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),
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_buildPrivacyItem(
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theme,
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Icons.delete_forever,
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'完全控制',
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'您可以随时删除所有数据，完全掌控您的隐私。',
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),
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],
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),
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),
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),
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const SizedBox(height: 16),
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// 数据管理
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Card(
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'数据管理',
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style: theme.textTheme.titleMedium?.copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 16),
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_buildDataAction(
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context,
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theme,
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Icons.delete_outline,
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'删除旧数据',
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'删除 30 天前的数据',
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Colors.orange,
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() => _showDeleteOldDataDialog(context),
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),
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const SizedBox(height: 12),
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_buildDataAction(
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context,
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theme,
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Icons.delete_forever,
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'清空所有数据',
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'删除所有使用记录和统计数据',
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Colors.red,
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() => _showDeleteAllDataDialog(context),
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),
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],
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),
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),
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),
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const SizedBox(height: 16),
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// 数据使用说明
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Card(
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'数据使用说明',
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style: theme.textTheme.titleMedium?.copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 12),
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Text(
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'• 应用使用数据仅用于统计和分析\n'
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'• 数据不会离开您的设备\n'
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'• 不会与第三方分享任何数据\n'
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'• 不会用于广告或营销目的\n'
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'• 您可以随时导出或删除数据',
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style: theme.textTheme.bodyMedium,
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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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Widget _buildPrivacyItem(ThemeData theme, IconData icon, String title, String description) {
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return Padding(
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padding: const EdgeInsets.only(bottom: 16),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Icon(icon, color: AppTheme.primaryColor, size: 24),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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title,
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style: theme.textTheme.bodyLarge?.copyWith(
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fontWeight: FontWeight.w600,
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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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description,
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style: theme.textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurface.withOpacity(0.6),
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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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Widget _buildDataAction(
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BuildContext context,
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ThemeData theme,
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IconData icon,
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String title,
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String subtitle,
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Color color,
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VoidCallback onTap,
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) {
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return InkWell(
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onTap: _isDeleting ? null : onTap,
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borderRadius: BorderRadius.circular(8),
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child: Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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border: Border.all(color: color.withOpacity(0.3)),
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borderRadius: BorderRadius.circular(8),
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),
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child: Row(
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children: [
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Icon(icon, color: color),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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title,
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style: theme.textTheme.bodyLarge?.copyWith(
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fontWeight: FontWeight.w600,
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color: color,
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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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subtitle,
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style: theme.textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurface.withOpacity(0.6),
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),
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),
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],
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),
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),
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if (_isDeleting)
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const SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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else
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const Icon(Icons.chevron_right),
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],
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),
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),
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);
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}
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void _showDeleteOldDataDialog(BuildContext context) {
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('删除旧数据'),
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content: const Text('确定要删除 30 天前的所有数据吗？此操作不可恢复。'),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(context).pop(),
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child: const Text('取消'),
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),
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ElevatedButton(
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onPressed: () async {
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Navigator.of(context).pop();
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await _deleteOldData(context);
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.orange,
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),
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child: const Text('删除'),
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),
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],
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),
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);
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}
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void _showDeleteAllDataDialog(BuildContext context) {
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('清空所有数据'),
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content: const Text(
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'确定要删除所有使用记录和统计数据吗？\n\n'
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'此操作将：\n'
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'• 删除所有应用使用记录\n'
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'• 删除所有统计数据\n'
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'• 删除所有分类设置\n'
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'• 删除所有目标设置\n\n'
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'此操作不可恢复！',
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(context).pop(),
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child: const Text('取消'),
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),
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ElevatedButton(
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onPressed: () async {
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Navigator.of(context).pop();
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await _deleteAllData(context);
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.red,
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),
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child: const Text('确认删除'),
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),
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],
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),
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);
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}
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Future<void> _deleteOldData(BuildContext context) async {
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if (kIsWeb) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('Web 平台不支持数据删除功能'),
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backgroundColor: AppTheme.warningColor,
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),
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);
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return;
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}
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setState(() {
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_isDeleting = true;
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});
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try {
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final thirtyDaysAgo = DateTime.now().subtract(const Duration(days: 30));
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await _appUsageDao.deleteBeforeDate(thirtyDaysAgo);
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await _dailyStatsDao.deleteBeforeDate(thirtyDaysAgo);
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('已删除 30 天前的数据'),
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backgroundColor: AppTheme.successColor,
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),
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);
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}
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} catch (e) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('删除失败: $e'),
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backgroundColor: AppTheme.errorColor,
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),
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);
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}
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} finally {
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if (mounted) {
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setState(() {
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_isDeleting = false;
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});
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}
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}
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}
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Future<void> _deleteAllData(BuildContext context) async {
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if (kIsWeb) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('Web 平台不支持数据删除功能'),
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backgroundColor: AppTheme.warningColor,
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),
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);
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return;
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}
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setState(() {
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_isDeleting = true;
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});
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try {
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// 删除所有应用使用记录
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final allUsages = await _appUsageDao.getAppUsages(
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startTime: DateTime(2000),
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endTime: DateTime.now(),
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);
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for (final usage in allUsages) {
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if (usage.id != null) {
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await _appUsageDao.deleteAppUsage(usage.id!);
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}
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}
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// 删除所有统计数据
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final allStats = await _dailyStatsDao.getStatsRange(
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startDate: DateTime(2000),
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endDate: DateTime.now(),
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);
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for (final stat in allStats) {
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if (stat.id != null) {
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await _dailyStatsDao.deleteDailyStats(stat.id!);
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}
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}
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('已清空所有数据'),
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backgroundColor: AppTheme.successColor,
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),
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);
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}
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} catch (e) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('删除失败: $e'),
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backgroundColor: AppTheme.errorColor,
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),
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);
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}
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} finally {
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if (mounted) {
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setState(() {
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_isDeleting = false;
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});
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}
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}
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}
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}
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