dellevin/MookNote
1
0
Fork 0
generated from dellevin/template
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

代码优化，epub阅读标签

Browse Source
This commit is contained in:
DelLevin-Home
2026-06-28 02:25:07 +08:00
parent c810a1a381
commit 5f434ae3fa
35 changed files with 2110 additions and 525 deletions
Download Patch File Download Diff File Expand all files Collapse all files

107
lib/utils/sync/backup_service.dart
View File

@@ -1,6 +1,5 @@
import 'dart:convert';
import 'dart:io';
import 'package:archive/archive.dart';
import 'package:archive/archive_io.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/foundation.dart';
@@ -89,57 +88,73 @@ class BackupService {
},
};
// 创建 ZIP
final archive = Archive();
final jsonString = const JsonEncoder.withIndent(' ').convert(backupData);
final jsonBytes = Uint8List.fromList(utf8.encode(jsonString));
archive.addFile(ArchiveFile('data.json', jsonBytes.length, jsonBytes));
// 创建 ZIP（逐文件写入磁盘，避免全部加载到内存）
final tempDir = await getTemporaryDirectory();
final tempZipPath = path.join(tempDir.path, 'mooknote_backup_temp.zip');
final encoder = ZipFileEncoder();
encoder.create(tempZipPath);
int imageCount = 0;
final appDir = await getApplicationDocumentsDirectory();
final imagesRoot = path.join(appDir.path, 'images');
try {
// data.json
final jsonString = const JsonEncoder.withIndent(' ').convert(backupData);
final jsonBytes = Uint8List.fromList(utf8.encode(jsonString));
final dataFile = File(path.join(tempDir.path, 'mooknote_data.json'));
await dataFile.writeAsBytes(jsonBytes);
encoder.addFile(dataFile, 'data.json');
await dataFile.delete();
for (final imagePath in imagePaths) {
final file = File(imagePath);
if (await file.exists()) {
final bytes = await file.readAsBytes();
String relativePath;
if (imagePath.startsWith(imagesRoot)) {
relativePath = imagePath.substring(imagesRoot.length + 1);
} else {
relativePath = path.basename(imagePath);
}
archive.addFile(ArchiveFile('images/$relativePath', bytes.length, bytes));
imageCount++;
}
}
int imageCount = 0;
final appDir = await getApplicationDocumentsDirectory();
final imagesRoot = path.join(appDir.path, 'images');
// 收集 epub_books 目录下的 epub 文件
int epubCount = 0;
final epubRoot = path.join(appDir.path, 'epub_books');
final epubDir = Directory(epubRoot);
if (await epubDir.exists()) {
await for (final entity in epubDir.list(recursive: true)) {
if (entity is File) {
final bytes = await entity.readAsBytes();
final relativePath = entity.path.substring(epubRoot.length + 1);
archive.addFile(ArchiveFile('epub_books/$relativePath', bytes.length, bytes));
epubCount++;
for (final imagePath in imagePaths) {
final file = File(imagePath);
if (await file.exists()) {
String relativePath;
if (imagePath.startsWith(imagesRoot)) {
relativePath = imagePath.substring(imagesRoot.length + 1);
} else {
relativePath = path.basename(imagePath);
}
encoder.addFile(file, 'images/$relativePath');
imageCount++;
}
}
// 收集 epub_books 目录下的 epub 文件
int epubCount = 0;
final epubRoot = path.join(appDir.path, 'epub_books');
final epubDir = Directory(epubRoot);
if (await epubDir.exists()) {
await for (final entity in epubDir.list(recursive: true)) {
if (entity is File) {
final relativePath = entity.path.substring(epubRoot.length + 1);
encoder.addFile(entity, 'epub_books/$relativePath');
epubCount++;
}
}
}
encoder.close();
// 读取最终 zip 文件
final zipFile = File(tempZipPath);
final zipBytes = await zipFile.readAsBytes();
await zipFile.delete();
return _ExportData(
zipBytes: Uint8List.fromList(zipBytes),
movieCount: movies.length,
bookCount: books.length,
noteCount: notes.length,
imageCount: imageCount,
epubCount: epubCount,
);
} catch (e) {
encoder.close();
try { await File(tempZipPath).delete(); } catch (_) {}
rethrow;
}
final zipBytes = ZipEncoder().encode(archive);
if (zipBytes == null) throw Exception('压缩备份文件失败');
return _ExportData(
zipBytes: Uint8List.fromList(zipBytes),
movieCount: movies.length,
bookCount: books.length,
noteCount: notes.length,
imageCount: imageCount,
epubCount: epubCount,
);
}
// ─── 手动导出 ─────────────────────────────────────────