优化

app/src/main/java/io/legado/app/data/entities/BookChapter.kt

@@ -144,7 +144,8 @@ data class BookChapter(
     }
 
     @Suppress("unused")
-    fun getFileName(): String = String.format("%05d-%s.nb", index, MD5Utils.md5Encode16(title))
+    fun getFileName(suffix: String = "nb"): String =
+        String.format("%05d-%s.%s", index, MD5Utils.md5Encode16(title), suffix)
 
     @Suppress("unused")
     fun getFontName(): String = String.format("%05d-%s.ttf", index, MD5Utils.md5Encode16(title))

app/src/main/java/io/legado/app/help/book/BookHelp.kt

@@ -282,6 +282,41 @@ object BookHelp {
         ).delete()
     }
 
+    /**
+     * 设置是否禁用正文的去除重复标题,针对单个章节
+     */
+    fun setRemoveSameTitle(book: Book, bookChapter: BookChapter, removeSameTitle: Boolean) {
+        if (removeSameTitle) {
+            val path = FileUtils.getPath(
+                downloadDir,
+                cacheFolderName,
+                book.getFolderName(),
+                bookChapter.getFileName(".nr")
+            )
+            File(path).delete()
+        } else {
+            FileUtils.createFileIfNotExist(
+                downloadDir,
+                cacheFolderName,
+                book.getFolderName(),
+                bookChapter.getFileName(".nr")
+            )
+        }
+    }
+
+    /**
+     * 获取是否去除重复标题
+     */
+    fun removeSameTitle(book: Book, bookChapter: BookChapter): Boolean {
+        val path = FileUtils.getPath(
+            downloadDir,
+            cacheFolderName,
+            book.getFolderName(),
+            bookChapter.getFileName(".nr")
+        )
+        return !File(path).exists()
+    }
+
     /**
      * 格式化书名
      */

app/src/main/java/io/legado/app/help/book/ContentProcessor.kt

@@ -84,12 +84,16 @@ class ContentProcessor private constructor(
         var sameTitleRemoved = false
         if (content != "null") {
             //去除重复标题
-            try {
+            if (BookHelp.removeSameTitle(book, chapter)) try {
                 val name = Pattern.quote(book.name)
                 val title = Pattern.quote(chapter.title)
-                val titleRegex = "^(\\s|\\p{P}|${name})*${title}(\\s)*".toRegex()
-                mContent = mContent.replace(titleRegex, "")
-                sameTitleRemoved = true
+                val titleRegex = "^(\\s|\\p{P}|${name})*${title}(\\s)*"
+                val matcher = Pattern.compile(titleRegex)
+                    .matcher(mContent)
+                if (matcher.find()) {
+                    mContent = mContent.substring(matcher.end())
+                    sameTitleRemoved = true
+                }
             } catch (e: Exception) {
                 AppLog.put("去除重复标题出错\n${e.localizedMessage}", e)
             }

app/src/main/java/io/legado/app/model/ReadBook.kt

@@ -43,9 +43,6 @@ object ReadBook : CoroutineScope by MainScope() {
     private val readRecord = ReadRecord()
     var readStartTime: Long = System.currentTimeMillis()
 
-    /* 跳转历史记录 */
-    var bookProgressHistory: List<BookProgress>? = null
-
     /* 跳转进度前进度记录 */
     var lastBookPress: BookProgress? = null
 
@@ -274,7 +271,9 @@ object ReadBook : CoroutineScope by MainScope() {
     }
 
     /**
-     * 加载章节内容
+     * 加载当前章节和前后一章内容
+     * @param resetPageOffset 滚动阅读是否重置滚动位置
+     * @param success 当前章节加载完成回调
      */
     fun loadContent(resetPageOffset: Boolean, success: (() -> Unit)? = null) {
         loadContent(durChapterIndex, resetPageOffset = resetPageOffset) {
@@ -284,6 +283,13 @@ object ReadBook : CoroutineScope by MainScope() {
         loadContent(durChapterIndex - 1, resetPageOffset = resetPageOffset)
     }
 
+    /**
+     * 加载章节内容
+     * @param index 章节序号
+     * @param upContent 是否更新视图
+     * @param resetPageOffset 滚动阅读是否重置滚动位置
+     * @param success 加载完成回调
+     */
     fun loadContent(
         index: Int,
         upContent: Boolean = true,
@@ -308,6 +314,9 @@ object ReadBook : CoroutineScope by MainScope() {
         }
     }
 
+    /**
+     * 下载正文
+     */
     private fun download(index: Int) {
         if (index < 0) return
         if (index > chapterSize - 1) {
@@ -332,6 +341,9 @@ object ReadBook : CoroutineScope by MainScope() {
         }
     }
 
+    /**
+     * 下载正文
+     */
     private fun download(
         scope: CoroutineScope,
         chapter: BookChapter,

app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt

@@ -404,10 +404,7 @@ class ReadBookActivity : BaseReadBookActivity(),
                     sureSyncProgress(progress)
                 }
             }
-            R.id.menu_same_title_removed -> {
-                val chapterUrl = ReadBook.curTextChapter?.url
-                MD5Utils.md5Encode(chapterUrl)
-            }
+            R.id.menu_same_title_removed -> viewModel.reverseRemoveSameTitle()
             R.id.menu_help -> showReadMenuHelp()
         }
         return super.onCompatOptionsItemSelected(item)

app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt

@@ -33,7 +33,6 @@ import io.legado.app.ui.book.read.page.provider.ImageProvider
 import io.legado.app.ui.book.searchContent.SearchResult
 import io.legado.app.utils.*
 import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.launch
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileNotFoundException
@@ -429,6 +428,25 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         return arrayOf(pageIndex, lineIndex, charIndex, addLine, charIndex2)
     }
 
+    /**
+     * 翻转删除重复标题
+     */
+    fun reverseRemoveSameTitle() {
+        execute {
+            val book = ReadBook.book
+            val textChapter = ReadBook.curTextChapter
+            if (book != null && textChapter != null) {
+                BookHelp.setRemoveSameTitle(
+                    book, textChapter.chapter, !textChapter.sameTitleRemoved
+                )
+                ReadBook.loadContent(ReadBook.durChapterIndex)
+            }
+        }
+    }
+
+    /**
+     * 刷新图片
+     */
     fun refreshImage(src: String) {
         execute {
             ReadBook.book?.let { book ->
@@ -441,6 +459,9 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
+    /**
+     * 保存图片
+     */
     @Suppress("BlockingMethodInNonBlockingContext")
     fun saveImage(src: String?, uri: Uri) {
         src ?: return

app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt

@@ -469,7 +469,7 @@ class ReadMenu @JvmOverloads constructor(
             binding.tvChapterName.text = it.title
             binding.tvChapterName.visible()
             if (!ReadBook.isLocalBook) {
-                binding.tvChapterUrl.text = it.url
+                binding.tvChapterUrl.text = it.chapter.getAbsoluteURL()
                 binding.tvChapterUrl.visible()
             } else {
                 binding.tvChapterUrl.gone()

app/src/main/java/io/legado/app/ui/book/read/page/entities/TextChapter.kt

@@ -2,6 +2,7 @@ package io.legado.app.ui.book.read.page.entities
 
 
 import androidx.annotation.Keep
+import io.legado.app.data.entities.BookChapter
 import kotlin.math.min
 
 /**
@@ -10,9 +11,9 @@ import kotlin.math.min
 @Keep
 @Suppress("unused")
 data class TextChapter(
+    val chapter: BookChapter,
     val position: Int,
     val title: String,
-    val url: String,
     val pages: List<TextPage>,
     val chaptersSize: Int,
     val sameTitleRemoved: Boolean,

app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt

@@ -216,8 +216,8 @@ object ChapterProvider {
         }
 
         return TextChapter(
+            bookChapter,
             bookChapter.index, displayTitle,
-            bookChapter.getAbsoluteURL(),
             textPages, chapterSize,
             bookContent.sameTitleRemoved,
             bookChapter.isVip, bookChapter.isPay