up

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

@@ -57,6 +57,16 @@ object BookHelp {
         return null
     }
 
+    fun delContent(book: Book, bookChapter: BookChapter) {
+        val filePath = getChapterPath(book, bookChapter)
+        kotlin.runCatching {
+            val file = File(filePath)
+            if (file.exists()) {
+                file.delete()
+            }
+        }
+    }
+
     private fun getChapterPath(book: Book, bookChapter: BookChapter): String {
         val bookFolder = formatFolderName(book.name + book.bookUrl)
         val chapterFile = String.format("%05d-%s", bookChapter.index, formatFolderName(bookChapter.title))

app/src/main/java/io/legado/app/ui/readbook/ReadBookActivity.kt

@@ -180,6 +180,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
                 }
                 changeSourceDialog?.show(supportFragmentManager, ChangeSourceDialog.tag)
             }
+            R.id.menu_refresh -> viewModel.refreshContent()
         }
         return super.onCompatOptionsItemSelected(item)
     }

app/src/main/java/io/legado/app/ui/readbook/ReadBookViewModel.kt

@@ -228,6 +228,17 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
+    fun refreshContent() {
+        execute {
+            bookData.value?.let { book ->
+                App.db.bookChapterDao().getChapter(book.bookUrl, durChapterIndex)?.let { chapter ->
+                    BookHelp.delContent(book, chapter)
+                    loadContent(book, durChapterIndex)
+                }
+            }
+        }
+    }
+
     override fun onCleared() {
         super.onCleared()
         ReadAloudService.stop(context)