feat: 优化代码

app/src/main/java/io/legado/app/help/storage/Restore.kt

@@ -128,7 +128,7 @@ object Restore {
                 bodyIndentCount = App.INSTANCE.getPrefInt(PreferKey.bodyIndent, 2)
             }
             ChapterProvider.upStyle()
-            ReadBook.loadContent()
+            ReadBook.loadContent(resetPageOffset = false)
         }
         withContext(Main) {
             if (AppConfig.isNightTheme && AppCompatDelegate.getDefaultNightMode() != AppCompatDelegate.MODE_NIGHT_YES) {

app/src/main/java/io/legado/app/service/help/ReadBook.kt

@@ -79,11 +79,11 @@ object ReadBook {
             nextTextChapter = null
             book?.let {
                 if (curTextChapter == null) {
-                    loadContent(durChapterIndex, upContent)
+                    loadContent(durChapterIndex, upContent, false)
                 } else if (upContent) {
                     callBack?.upContent()
                 }
-                loadContent(durChapterIndex.plus(1), upContent)
+                loadContent(durChapterIndex.plus(1), upContent, false)
                 GlobalScope.launch(Dispatchers.IO) {
                     for (i in 2..10) {
                         delay(100)
@@ -109,11 +109,11 @@ object ReadBook {
             prevTextChapter = null
             book?.let {
                 if (curTextChapter == null) {
-                    loadContent(durChapterIndex, upContent)
+                    loadContent(durChapterIndex, upContent, false)
                 } else if (upContent) {
                     callBack?.upContent()
                 }
-                loadContent(durChapterIndex.minus(1), upContent)
+                loadContent(durChapterIndex.minus(1), upContent, false)
                 GlobalScope.launch(Dispatchers.IO) {
                     for (i in -5..-2) {
                         delay(100)
@@ -194,21 +194,21 @@ object ReadBook {
     /**
      * 加载章节内容
      */
-    fun loadContent() {
-        loadContent(durChapterIndex)
-        loadContent(durChapterIndex + 1)
-        loadContent(durChapterIndex - 1)
+    fun loadContent(resetPageOffset: Boolean) {
+        loadContent(durChapterIndex, resetPageOffset = resetPageOffset)
+        loadContent(durChapterIndex + 1, resetPageOffset = resetPageOffset)
+        loadContent(durChapterIndex - 1, resetPageOffset = resetPageOffset)
     }
 
-    fun loadContent(index: Int, upContent: Boolean = true) {
+    fun loadContent(index: Int, upContent: Boolean = true, resetPageOffset: Boolean) {
         book?.let { book ->
             if (addLoading(index)) {
                 Coroutine.async {
                     App.db.bookChapterDao().getChapter(book.bookUrl, index)?.let { chapter ->
                         BookHelp.getContent(book, chapter)?.let {
-                            contentLoadFinish(chapter, it, upContent)
+                            contentLoadFinish(chapter, it, upContent, resetPageOffset)
                             removeLoading(chapter.index)
-                        } ?: download(chapter)
+                        } ?: download(chapter, resetPageOffset = resetPageOffset)
                     } ?: removeLoading(index)
                 }.onError {
                     removeLoading(index)
@@ -226,7 +226,7 @@ object ReadBook {
                         if (BookHelp.hasContent(book, chapter)) {
                             removeLoading(chapter.index)
                         } else {
-                            download(chapter)
+                            download(chapter, false)
                         }
                     } ?: removeLoading(index)
                 }.onError {
@@ -236,20 +236,28 @@ object ReadBook {
         }
     }
 
-    private fun download(chapter: BookChapter) {
+    private fun download(chapter: BookChapter, resetPageOffset: Boolean) {
         book?.let { book ->
             webBook?.getContent(book, chapter)
                 ?.onSuccess(Dispatchers.IO) { content ->
                     if (content.isNullOrEmpty()) {
-                        contentLoadFinish(chapter, App.INSTANCE.getString(R.string.content_empty))
+                        contentLoadFinish(
+                            chapter,
+                            App.INSTANCE.getString(R.string.content_empty),
+                            resetPageOffset = resetPageOffset
+                        )
                         removeLoading(chapter.index)
                     } else {
                         BookHelp.saveContent(book, chapter, content)
-                        contentLoadFinish(chapter, content)
+                        contentLoadFinish(chapter, content, resetPageOffset = resetPageOffset)
                         removeLoading(chapter.index)
                     }
                 }?.onError {
-                    contentLoadFinish(chapter, it.localizedMessage ?: "未知错误")
+                    contentLoadFinish(
+                        chapter,
+                        it.localizedMessage ?: "未知错误",
+                        resetPageOffset = resetPageOffset
+                    )
                     removeLoading(chapter.index)
                 }
         }
@@ -275,7 +283,8 @@ object ReadBook {
     private fun contentLoadFinish(
         chapter: BookChapter,
         content: String,
-        upContent: Boolean = true
+        upContent: Boolean = true,
+        resetPageOffset: Boolean
     ) {
         Coroutine.async {
             if (chapter.index in durChapterIndex - 1..durChapterIndex + 1) {
@@ -289,18 +298,18 @@ object ReadBook {
                 when (chapter.index) {
                     durChapterIndex -> {
                         curTextChapter = ChapterProvider.getTextChapter(chapter, c, chapterSize)
-                        if (upContent) callBack?.upContent()
+                        if (upContent) callBack?.upContent(resetPageOffset = resetPageOffset)
                         callBack?.upView()
                         curPageChanged()
                         callBack?.contentLoadFinish()
                     }
                     durChapterIndex - 1 -> {
                         prevTextChapter = ChapterProvider.getTextChapter(chapter, c, chapterSize)
-                        if (upContent) callBack?.upContent(-1)
+                        if (upContent) callBack?.upContent(-1, resetPageOffset)
                     }
                     durChapterIndex + 1 -> {
                         nextTextChapter = ChapterProvider.getTextChapter(chapter, c, chapterSize)
-                        if (upContent) callBack?.upContent(1)
+                        if (upContent) callBack?.upContent(1, resetPageOffset)
                     }
                 }
             }
@@ -326,7 +335,7 @@ object ReadBook {
     }
 
     interface CallBack {
-        fun upContent(relativePosition: Int = 0)
+        fun upContent(relativePosition: Int = 0, resetPageOffset: Boolean = true)
         fun upView()
         fun upPageProgress()
         fun contentLoadFinish()

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

@@ -116,7 +116,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
 
     override fun onConfigurationChanged(newConfig: Configuration) {
         super.onConfigurationChanged(newConfig)
-        ReadBook.loadContent()
+        ReadBook.loadContent(resetPageOffset = false)
     }
 
     override fun onResume() {
@@ -482,9 +482,9 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
     /**
      * 更新内容
      */
-    override fun upContent(relativePosition: Int) {
+    override fun upContent(relativePosition: Int, resetPageOffset: Boolean) {
         launch {
-            page_view.upContent(relativePosition)
+            page_view.upContent(relativePosition, resetPageOffset)
         }
     }
 
@@ -580,7 +580,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
     override fun onReplaceRuleSave() {
         Coroutine.async {
             BookHelp.upReplaceRules()
-            ReadBook.loadContent()
+            ReadBook.loadContent(resetPageOffset = false)
         }
     }
 
@@ -709,9 +709,9 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
             page_view.upBg()
             page_view.upStyle()
             if (it) {
-                ReadBook.loadContent()
+                ReadBook.loadContent(resetPageOffset = false)
             } else {
-                page_view.upContent()
+                page_view.upContent(resetPageOffset = false)
             }
         }
         observeEvent<Int>(EventBus.ALOUD_STATE) {
@@ -720,7 +720,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
                     val page = textChapter.page(ReadBook.durPageIndex)
                     if (page != null) {
                         page.removePageAloudSpan()
-                        page_view.upContent()
+                        page_view.upContent(resetPageOffset = false)
                     }
                 }
             }

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

@@ -54,7 +54,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
                 if (ReadBook.durChapterIndex > ReadBook.chapterSize - 1) {
                     ReadBook.durChapterIndex = ReadBook.chapterSize - 1
                 }
-                ReadBook.loadContent()
+                ReadBook.loadContent(resetPageOffset = true)
             }
             if (ReadBook.inBookshelf) {
                 ReadBook.saveRead()
@@ -74,7 +74,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
                 }
             } else {
                 if (ReadBook.curTextChapter != null) {
-                    ReadBook.callBack?.upContent()
+                    ReadBook.callBack?.upContent(resetPageOffset = false)
                 }
             }
         }
@@ -107,7 +107,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
                     App.db.bookChapterDao().insert(*it.toTypedArray())
                     App.db.bookDao().update(book)
                     ReadBook.chapterSize = it.size
-                    ReadBook.loadContent()
+                    ReadBook.loadContent(resetPageOffset = true)
                 }
             } else {
                 ReadBook.webBook?.getChapterList(book, this)
@@ -117,7 +117,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
                                 App.db.bookChapterDao().insert(*cList.toTypedArray())
                                 App.db.bookDao().update(book)
                                 ReadBook.chapterSize = cList.size
-                                ReadBook.loadContent()
+                                ReadBook.loadContent(resetPageOffset = true)
                             } else {
                                 changeDruChapterIndex(cList)
                             }
@@ -191,7 +191,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
             App.db.bookDao().update(book)
             App.db.bookChapterDao().insert(*chapters.toTypedArray())
             ReadBook.chapterSize = chapters.size
-            ReadBook.loadContent()
+            ReadBook.loadContent(resetPageOffset = true)
         }
     }
 
@@ -205,7 +205,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
             ReadBook.durPageIndex = pageIndex
         }
         ReadBook.saveRead()
-        ReadBook.loadContent()
+        ReadBook.loadContent(resetPageOffset = true)
     }
 
     fun removeFromBookshelf(success: (() -> Unit)?) {
@@ -233,7 +233,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
             App.db.bookChapterDao().getChapter(book.bookUrl, ReadBook.durChapterIndex)
                 ?.let { chapter ->
                     BookHelp.delContent(book, chapter)
-                    ReadBook.loadContent(ReadBook.durChapterIndex)
+                    ReadBook.loadContent(ReadBook.durChapterIndex, resetPageOffset = false)
                 }
         }
     }

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

@@ -108,7 +108,7 @@ class ContentView(context: Context) : FrameLayout(context) {
         }
     }
 
-    fun setContent(textPage: TextPage, resetPageOffset: Boolean) {
+    fun setContent(textPage: TextPage, resetPageOffset: Boolean = true) {
         setProgress(textPage)
         if (resetPageOffset)
             resetPageOffset()

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

@@ -17,5 +17,5 @@ interface DataSource {
 
     fun hasPrevChapter(): Boolean
 
-    fun upContent(relativePosition: Int = 0)
+    fun upContent(relativePosition: Int = 0, resetPageOffset: Boolean = true)
 }

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

@@ -38,7 +38,7 @@ class PageView(context: Context, attrs: AttributeSet) :
         prevPage.x = -w.toFloat()
         pageDelegate?.setViewSize(w, h)
         if (oldw != 0 && oldh != 0) {
-            ReadBook.loadContent()
+            ReadBook.loadContent(resetPageOffset = false)
         }
     }
 
@@ -93,9 +93,9 @@ class PageView(context: Context, attrs: AttributeSet) :
         upContent()
     }
 
-    override fun upContent(relativePosition: Int) {
+    override fun upContent(relativePosition: Int, resetPageOffset: Boolean) {
         if (ReadBookConfig.isScroll) {
-            curPage.setContent(pageFactory.currentPage)
+            curPage.setContent(pageFactory.currentPage, resetPageOffset)
         } else {
             when (relativePosition) {
                 -1 -> prevPage.setContent(pageFactory.prevPage)

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

@@ -38,7 +38,7 @@ class TextPageFactory(dataSource: DataSource) : PageFactory<TextPage>(dataSource
             } else {
                 ReadBook.setPageIndex(pageIndex.plus(1))
             }
-            if (upContent) upContent()
+            if (upContent) upContent(resetPageOffset = false)
             true
         } else
             false
@@ -51,7 +51,7 @@ class TextPageFactory(dataSource: DataSource) : PageFactory<TextPage>(dataSource
             } else {
                 ReadBook.setPageIndex(pageIndex.minus(1))
             }
-            if (upContent) upContent()
+            if (upContent) upContent(resetPageOffset = false)
             true
         } else
             false