generated from dellevin/template
优化epub功能和清除缓存功能
This commit is contained in:
DelLevin-Home
@@ -2022,30 +2022,58 @@ class _SettingsPageState extends State<SettingsPage> {
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);
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}
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void _showClearCacheDialog(BuildContext pageContext) {
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void _showClearCacheDialog(BuildContext pageContext) async {
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final colors = Theme.of(context).colorScheme;
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// 先扫描分析
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showDialog(
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context: pageContext,
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barrierDismissible: false,
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builder: (_) => Center(child: CircularProgressIndicator(color: colors.primary)),
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);
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final appProvider = pageContext.read<AppProvider>();
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final dbImagePaths = await _getAllDbImagePaths(appProvider);
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final imageInfo = await _scanImageDirectory(dbImagePaths);
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final epubInfo = await _scanOrphanedEpubBooks(appProvider);
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final tempInfo = await _scanTempDirectory();
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final emptyDirInfo = await _scanEmptyDirectories();
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if (!pageContext.mounted) return;
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Navigator.pop(pageContext); // 关闭 loading
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final totalSize = imageInfo.$2 + epubInfo.$2 + tempInfo.$2 + emptyDirInfo.$2;
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final totalCount = imageInfo.$1 + epubInfo.$1 + tempInfo.$1 + emptyDirInfo.$1;
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if (totalCount == 0) {
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ToastUtil.show(pageContext, '没有需要清理的缓存');
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return;
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}
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showDialog(
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context: pageContext,
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builder: (dialogContext) => AlertDialog(
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backgroundColor: colors.surface,
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elevation: 0,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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title: Text('清除缓存数据',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w600,
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color: colors.onSurface)),
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content: Text('这将删除所有未在数据库中引用的文件。确定要继续吗？',
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style: TextStyle(
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fontSize: 14,
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color: colors.onSurface.withValues(alpha: 0.6),
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height: 1.5)),
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title: Text('缓存分析',
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style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text('共发现 $totalCount 项可清理缓存，合计 ${_formatSize(totalSize)}',
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style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.5))),
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const SizedBox(height: 14),
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if (imageInfo.$1 > 0) _buildCacheItem('孤立图片', imageInfo.$1, imageInfo.$2, Icons.image_outlined, colors),
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if (epubInfo.$1 > 0) _buildCacheItem('孤立电子书', epubInfo.$1, epubInfo.$2, Icons.menu_book_outlined, colors),
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if (tempInfo.$1 > 0) _buildCacheItem('临时文件', tempInfo.$1, tempInfo.$2, Icons.folder_outlined, colors),
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if (emptyDirInfo.$1 > 0) _buildCacheItem('空文件夹', emptyDirInfo.$1, emptyDirInfo.$2, Icons.folder_off_outlined, colors),
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],
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.pop(dialogContext),
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child: Text('取消',
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style: TextStyle(
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color: colors.onSurface.withValues(alpha: 0.6)))),
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child: Text('取消', style: TextStyle(color: colors.onSurface.withValues(alpha: 0.6)))),
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ElevatedButton(
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onPressed: () async {
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Navigator.pop(dialogContext);
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@@ -2055,19 +2083,40 @@ class _SettingsPageState extends State<SettingsPage> {
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backgroundColor: colors.error,
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foregroundColor: colors.onError,
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elevation: 0,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8)),
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padding:
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const EdgeInsets.symmetric(horizontal: 16, vertical: 8)),
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child: const Text('清除'),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8)),
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child: const Text('确认清除'),
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),
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],
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actionsPadding:
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const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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),
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);
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}
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Widget _buildCacheItem(String label, int count, int size, IconData icon, ColorScheme colors) {
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return Padding(
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padding: const EdgeInsets.only(bottom: 10),
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child: Row(
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children: [
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Icon(icon, size: 18, color: colors.onSurface.withValues(alpha: 0.4)),
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const SizedBox(width: 10),
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Expanded(
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child: Text(label,
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style: TextStyle(fontSize: 14, fontWeight: FontWeight.w500, color: colors.onSurface)),
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),
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Text('$count项 ${_formatSize(size)}',
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style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.5))),
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],
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),
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);
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}
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String _formatSize(int bytes) {
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if (bytes < 1024) return '$bytes B';
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if (bytes < 1024 * 1024) return '${(bytes / 1024).toStringAsFixed(1)} KB';
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return '${(bytes / (1024 * 1024)).toStringAsFixed(1)} MB';
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}
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Future<void> _clearCacheData(BuildContext context) async {
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try {
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showDialog(
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@@ -2302,6 +2351,154 @@ class _SettingsPageState extends State<SettingsPage> {
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} catch (_) {}
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return count;
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}
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// ─── 扫描方法（只统计不删除） ──────────────────────────────────────────────
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/// 返回 (文件数, 总字节数)
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Future<(int, int)> _scanImageDirectory(Set<String> dbImagePaths) async {
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int count = 0, totalSize = 0;
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try {
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final appDir = await getApplicationDocumentsDirectory();
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final imagesDir = Directory('${appDir.path}/images');
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if (!await imagesDir.exists()) return (0, 0);
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await for (final entity in imagesDir.list(recursive: true, followLinks: false)) {
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if (entity is File &&
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!dbImagePaths.contains(entity.path) &&
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!path.basename(entity.path).startsWith('avatar')) {
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try {
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totalSize += await entity.length();
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count++;
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} catch (_) {}
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}
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}
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} catch (_) {}
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return (count, totalSize);
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}
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Future<(int, int)> _scanOrphanedEpubBooks(AppProvider provider) async {
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int count = 0, totalSize = 0;
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try {
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final db = await DatabaseHelper.instance.database;
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final rows = await db.query('reader_books', columns: ['id', 'file_path', 'cover_path', 'is_deleted']);
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final usedDirs = <String>{};
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for (final r in rows) {
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final isDeleted = r['is_deleted'] == 1 || r['is_deleted'] == true;
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if (isDeleted) continue;
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final id = r['id'] as String?;
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if (id != null && id.isNotEmpty) usedDirs.add(id);
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_collectEpubDirName(r['file_path'] as String?, usedDirs);
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_collectEpubDirName(r['cover_path'] as String?, usedDirs);
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}
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final appDir = await getApplicationDocumentsDirectory();
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final possiblePaths = [
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'${appDir.path}/epub_books',
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'/data/user/0/top.iletter.mooknote/app_flutter/epub_books',
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];
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for (final epubPath in possiblePaths) {
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final epubDir = Directory(epubPath);
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if (!await epubDir.exists()) continue;
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await for (final entity in epubDir.list(followLinks: false)) {
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if (entity is Directory) {
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final dirName = path.basename(entity.path);
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if (!usedDirs.contains(dirName)) {
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try {
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totalSize += await _dirSize(entity);
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count++;
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} catch (_) {}
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}
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}
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}
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}
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} catch (_) {}
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return (count, totalSize);
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}
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Future<(int, int)> _scanTempDirectory() async {
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int count = 0, totalSize = 0;
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final now = DateTime.now();
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try {
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final tempDir = await getTemporaryDirectory();
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if (await tempDir.exists()) {
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await for (final entity in tempDir.list(followLinks: false)) {
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if (entity is File) {
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final name = path.basename(entity.path);
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if (name.startsWith('book_poster_') ||
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name.startsWith('movie_poster_') ||
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name.startsWith('note_share_') ||
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name.startsWith('mooknote_download') ||
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name.startsWith('mooknote_bidir')) {
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try {
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final stat = await entity.stat();
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if (now.difference(stat.modified).inHours >= 1) {
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totalSize += await entity.length();
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count++;
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}
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} catch (_) {}
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}
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}
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}
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}
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} catch (_) {}
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try {
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final cacheDir = await getApplicationCacheDirectory();
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if (await cacheDir.exists()) {
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await for (final entity in cacheDir.list(recursive: true, followLinks: false)) {
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if (entity is File) {
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try {
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totalSize += await entity.length();
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count++;
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} catch (_) {}
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}
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}
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}
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} catch (_) {}
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return (count, totalSize);
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}
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Future<(int, int)> _scanEmptyDirectories() async {
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int count = 0;
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try {
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final appDir = await getApplicationDocumentsDirectory();
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final cacheDir = await getApplicationCacheDirectory();
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final dirs = [
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Directory('${appDir.path}/images'),
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Directory('${appDir.path}/epub_books'),
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cacheDir,
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];
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for (final dir in dirs) {
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if (!await dir.exists()) continue;
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count += await _countEmptyDirsRecursive(dir);
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}
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} catch (_) {}
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return (count, 0);
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}
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Future<int> _dirSize(Directory dir) async {
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int size = 0;
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try {
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await for (final entity in dir.list(recursive: true, followLinks: false)) {
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if (entity is File) {
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try { size += await entity.length(); } catch (_) {}
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}
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}
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} catch (_) {}
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return size;
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}
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Future<int> _countEmptyDirsRecursive(Directory dir) async {
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int count = 0;
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try {
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final children = await dir.list(followLinks: false).toList();
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for (final child in children) {
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if (child is Directory) {
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count += await _countEmptyDirsRecursive(child);
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final remaining = await child.list(followLinks: false).toList();
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if (remaining.isEmpty) count++;
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}
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}
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} catch (_) {}
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return count;
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}
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}
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// ─── 功能设置 ───
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