feat: 优化代码

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

@@ -193,6 +193,7 @@ object AnalyzeTxtFile {
     }
 
     private fun getBookFile(context: Context, book: Book): File {
+        if (book.bookUrl.isContentPath()) {
             val uri = Uri.parse(book.bookUrl)
             val bookFile = FileUtils.getFile(cacheFolder, book.originName, subDirs = *arrayOf())
             if (!bookFile.exists()) {
@@ -203,6 +204,8 @@ object AnalyzeTxtFile {
             }
             return bookFile
         }
+        return File(book.bookUrl)
+    }
 
     private fun getTocRule(book: Book, bookStream: RandomAccessFile, charset: Charset): Pattern? {
         if (book.tocUrl.isNotEmpty()) {