优化

app/src/main/java/io/legado/app/model/localBook/EpubFile.kt

@@ -21,7 +21,6 @@ import me.ag2s.epublib.util.zip.AndroidZipFile
 import org.jsoup.Jsoup
 import org.jsoup.nodes.Element
 import org.jsoup.select.Elements
-import java.io.File
 import java.io.FileOutputStream
 import java.io.IOException
 import java.io.InputStream
@@ -95,29 +94,6 @@ class EpubFile(var book: Book) {
             return field
         }
 
-    init {
-        try {
-            epubBook?.let {
-                if (book.coverUrl.isNullOrEmpty()) {
-                    book.coverUrl = LocalBook.getCoverPath(book)
-                }
-                if (!File(book.coverUrl!!).exists()) {
-                    /*部分书籍DRM处理后，封面获取异常，待优化*/
-                    it.coverImage?.inputStream?.use { input ->
-                        val cover = BitmapFactory.decodeStream(input)
-                        val out = FileOutputStream(FileUtils.createFileIfNotExist(book.coverUrl!!))
-                        cover.compress(Bitmap.CompressFormat.JPEG, 90, out)
-                        out.flush()
-                        out.close()
-                    } ?: AppLog.putDebug("Epub: 封面获取为空. path: ${book.bookUrl}")
-                }
-            }
-        } catch (e: Exception) {
-            AppLog.put("加载书籍封面失败\n${e.localizedMessage}", e)
-            e.printOnDebug()
-        }
-    }
-
     /**
      * 重写epub文件解析代码，直接读出压缩包文件生成Resources给epublib，这样的好处是可以逐一修改某些文件的格式错误
      */
@@ -267,11 +243,33 @@ class EpubFile(var book: Book) {
         return epubBook?.resources?.getByHref(abHref)?.inputStream
     }
 
+    private fun upBookCover() {
+        try {
+            epubBook?.let {
+                if (book.coverUrl.isNullOrEmpty()) {
+                    book.coverUrl = LocalBook.getCoverPath(book)
+                }
+                /*部分书籍DRM处理后，封面获取异常，待优化*/
+                it.coverImage?.inputStream?.use { input ->
+                    val cover = BitmapFactory.decodeStream(input)
+                    val out = FileOutputStream(FileUtils.createFileIfNotExist(book.coverUrl!!))
+                    cover.compress(Bitmap.CompressFormat.JPEG, 90, out)
+                    out.flush()
+                    out.close()
+                } ?: AppLog.putDebug("Epub: 封面获取为空. path: ${book.bookUrl}")
+            }
+        } catch (e: Exception) {
+            AppLog.put("加载书籍封面失败\n${e.localizedMessage}", e)
+            e.printOnDebug()
+        }
+    }
+
     private fun upBookInfo() {
         if (epubBook == null) {
             eFile = null
             book.intro = "书籍导入异常"
         } else {
+            upBookCover()
             val metadata = epubBook!!.metadata
             book.name = metadata.firstTitle
             if (book.name.isEmpty()) {

app/src/main/java/io/legado/app/model/localBook/LocalBook.kt

@@ -192,17 +192,25 @@ object LocalBook {
                 latestChapterTime = updateTime,
                 order = appDb.bookDao.minOrder - 1
             )
-            if (book.isEpub) EpubFile.upBookInfo(book)
-            if (book.isUmd) UmdFile.upBookInfo(book)
-            if (book.isPdf) PdfFile.upBookInfo(book)
+            upBookInfo(book)
             appDb.bookDao.insert(book)
         } else {
+            deleteBook(book, false)
+            upBookInfo(book)
             //已有书籍说明是更新,删除原有目录
             appDb.bookChapterDao.delByBook(bookUrl)
         }
         return book
     }
 
+    fun upBookInfo(book: Book) {
+        when {
+            book.isEpub -> EpubFile.upBookInfo(book)
+            book.isUmd -> UmdFile.upBookInfo(book)
+            book.isPdf -> UmdFile.upBookInfo(book)
+        }
+    }
+
     /* 导入压缩包内的书籍 */
     fun importArchiveFile(
         archiveFileUri: Uri,
@@ -306,6 +314,9 @@ object LocalBook {
     fun deleteBook(book: Book, deleteOriginal: Boolean) {
         kotlin.runCatching {
             BookHelp.clearCache(book)
+            if (!book.coverUrl.isNullOrEmpty()) {
+                FileUtils.delete(book.coverUrl!!)
+            }
             if (deleteOriginal) {
                 if (book.bookUrl.isContentScheme()) {
                     val uri = Uri.parse(book.bookUrl)

app/src/main/java/io/legado/app/model/localBook/PdfFile.kt

@@ -8,7 +8,11 @@ import io.legado.app.constant.AppLog
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
 import io.legado.app.help.book.getLocalUri
-import io.legado.app.utils.*
+import io.legado.app.utils.BitmapUtils
+import io.legado.app.utils.FileUtils
+import io.legado.app.utils.SystemUtils
+import io.legado.app.utils.isContentScheme
+import io.legado.app.utils.printOnDebug
 import splitties.init.appCtx
 import java.io.File
 import java.io.FileOutputStream
@@ -70,28 +74,6 @@ class PdfFile(var book: Book) {
             return field
         }
 
-
-    init {
-        try {
-            pdfRenderer?.let { renderer ->
-                if (book.coverUrl.isNullOrEmpty()) {
-                    book.coverUrl = LocalBook.getCoverPath(book)
-                }
-                if (!File(book.coverUrl!!).exists()) {
-
-                    FileOutputStream(FileUtils.createFileIfNotExist(book.coverUrl!!)).use { out ->
-                        openPdfPage(renderer, 0)?.compress(Bitmap.CompressFormat.JPEG, 90, out)
-                        out.flush()
-                    }
-                }
-            }
-        } catch (e: Exception) {
-            AppLog.put("加载书籍封面失败\n${e.localizedMessage}", e)
-            e.printOnDebug()
-        }
-
-    }
-
     /**
      * 读取PDF文件
      *
@@ -206,11 +188,29 @@ class PdfFile(var book: Book) {
         return chapterList
     }
 
+    private fun upBookCover() {
+        try {
+            pdfRenderer?.let { renderer ->
+                if (book.coverUrl.isNullOrEmpty()) {
+                    book.coverUrl = LocalBook.getCoverPath(book)
+                }
+                FileOutputStream(FileUtils.createFileIfNotExist(book.coverUrl!!)).use { out ->
+                    openPdfPage(renderer, 0)?.compress(Bitmap.CompressFormat.JPEG, 90, out)
+                    out.flush()
+                }
+            }
+        } catch (e: Exception) {
+            AppLog.put("加载书籍封面失败\n${e.localizedMessage}", e)
+            e.printOnDebug()
+        }
+    }
+
     private fun upBookInfo() {
         if (pdfRenderer == null) {
             pFile = null
             book.intro = "书籍导入异常"
         } else {
+            upBookCover()
             if (book.name.isEmpty()) {
                 book.name = book.originName.replace(".pdf", "")
             }

app/src/main/java/io/legado/app/model/localBook/UmdFile.kt

@@ -2,10 +2,11 @@ package io.legado.app.model.localBook
 
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
-import io.legado.app.utils.*
+import io.legado.app.utils.DebugLog
+import io.legado.app.utils.FileUtils
+import io.legado.app.utils.printOnDebug
 import me.ag2s.umdlib.domain.UmdBook
 import me.ag2s.umdlib.umd.UmdReader
-import java.io.File
 import java.io.InputStream
 
 class UmdFile(var book: Book) {
@@ -57,32 +58,30 @@ class UmdFile(var book: Book) {
             return field
         }
 
+    private fun readUmd(): UmdBook? {
+        val input = LocalBook.getBookInputStream(book)
+        return UmdReader().read(input)
+    }
 
-    init {
+    private fun upBookCover() {
         try {
             umdBook?.let {
                 if (book.coverUrl.isNullOrEmpty()) {
                     book.coverUrl = LocalBook.getCoverPath(book)
                 }
-                if (!File(book.coverUrl!!).exists()) {
-                    FileUtils.writeBytes(book.coverUrl!!, it.cover.coverData)
-                }
+                FileUtils.writeBytes(book.coverUrl!!, it.cover.coverData)
             }
         } catch (e: Exception) {
             e.printOnDebug()
         }
     }
 
-    private fun readUmd(): UmdBook? {
-        val input = LocalBook.getBookInputStream(book)
-        return UmdReader().read(input)
-    }
-
     private fun upBookInfo() {
         if (umdBook == null) {
             uFile = null
             book.intro = "书籍导入异常"
         } else {
+            upBookCover()
             val hd = umdBook!!.header
             book.name = hd.title
             book.author = hd.author

app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt

@@ -165,6 +165,8 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
         scope: CoroutineScope = viewModelScope
     ) {
         if (book.isLocal) {
+            LocalBook.upBookInfo(book)
+            bookData.postValue(book)
             loadChapter(book, scope)
         } else {
             val bookSource = bookSource ?: let {