优化

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

@@ -0,0 +1,30 @@
+package io.legado.app.model.localBook
+
+import androidx.documentfile.provider.DocumentFile
+import io.legado.app.App
+import io.legado.app.data.entities.Book
+
+
+object LocalBook {
+
+    fun importFile(doc: DocumentFile) {
+        doc.name?.let { fileName ->
+            val str = fileName.substringBeforeLast(".")
+            var name = str.substringBefore("作者")
+            val author = str.substringAfter("作者")
+            val smhStart = name.indexOf("《")
+            val smhEnd = name.indexOf("》")
+            if (smhStart != -1 && smhEnd != -1) {
+                name = (name.substring(smhStart + 1, smhEnd))
+            }
+            val book = Book(
+                bookUrl = doc.uri.toString(),
+                name = name,
+                author = author,
+                originName = fileName
+            )
+            App.db.bookDao().insert(book)
+        }
+    }
+
+}

app/src/main/java/io/legado/app/ui/importbook/ImportBookViewModel.kt

@@ -3,9 +3,8 @@ package io.legado.app.ui.importbook
 import android.app.Application
 import android.net.Uri
 import androidx.documentfile.provider.DocumentFile
-import io.legado.app.App
 import io.legado.app.base.BaseViewModel
-import io.legado.app.data.entities.Book
+import io.legado.app.model.localBook.LocalBook
 
 
 class ImportBookViewModel(application: Application) : BaseViewModel(application) {
@@ -14,23 +13,7 @@ class ImportBookViewModel(application: Application) : BaseViewModel(application)
         execute {
             uriList.forEach { uriStr ->
                 DocumentFile.fromSingleUri(context, Uri.parse(uriStr))?.let { doc ->
-                    doc.name?.let { fileName ->
-                        val str = fileName.substringBeforeLast(".")
-                        var name = str.substringBefore("作者")
-                        val author = str.substringAfter("作者")
-                        val smhStart = name.indexOf("《")
-                        val smhEnd = name.indexOf("》")
-                        if (smhStart != -1 && smhEnd != -1) {
-                            name = (name.substring(smhStart + 1, smhEnd))
-                        }
-                        val book = Book(
-                            bookUrl = uriStr,
-                            name = name,
-                            author = author,
-                            originName = fileName
-                        )
-                        App.db.bookDao().insert(book)
-                    }
+                    LocalBook.importFile(doc)
                 }
             }
         }.onFinally {