优化

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

@@ -1,9 +1,13 @@
 package io.legado.app.help.book
 
+import android.net.Uri
 import io.legado.app.constant.BookSourceType
 import io.legado.app.constant.BookType
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookSource
+import io.legado.app.exception.NoStackTraceException
+import io.legado.app.utils.isContentScheme
+import java.io.File
 
 
 val Book.isAudio: Boolean
@@ -44,6 +48,16 @@ val Book.isOnLineTxt: Boolean
         return !isLocal && type and BookType.text > 0
     }
 
+fun Book.getLocalUri(): Uri {
+    if (isLocal) {
+        if (bookUrl.isContentScheme()) {
+            return Uri.parse(bookUrl)
+        }
+        return Uri.fromFile(File(bookUrl))
+    }
+    throw NoStackTraceException("不是本地书籍")
+}
+
 fun Book.getRemoteUrl(): String? {
     if (origin.startsWith(BookType.webDavTag)) {
         return origin.substring(8)

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

@@ -15,10 +15,7 @@ import io.legado.app.data.entities.BookChapter
 import io.legado.app.exception.NoStackTraceException
 import io.legado.app.exception.TocEmptyException
 import io.legado.app.help.AppWebDav
-import io.legado.app.help.book.BookHelp
-import io.legado.app.help.book.getRemoteUrl
-import io.legado.app.help.book.isEpub
-import io.legado.app.help.book.isUmd
+import io.legado.app.help.book.*
 import io.legado.app.help.config.AppConfig
 import io.legado.app.lib.webdav.WebDav
 import io.legado.app.model.analyzeRule.AnalyzeUrl
@@ -44,11 +41,7 @@ object LocalBook {
 
     @Throws(FileNotFoundException::class, SecurityException::class)
     fun getBookInputStream(book: Book): InputStream {
-        val uri = if (book.bookUrl.isContentScheme()) {
-            Uri.parse(book.bookUrl)
-        } else {
-            Uri.fromFile(File(book.bookUrl))
-        }
+        val uri = book.getLocalUri()
         //文件不存在 尝试下载webDav文件 book.remoteUrl
         val inputStream = uri.inputStream(appCtx) ?: downloadRemoteBook(book)
         if (inputStream != null) return inputStream