up

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

@@ -1,5 +1,8 @@
 package io.legado.app.help.storage
 
+import io.legado.app.App
+import io.legado.app.utils.GSON
+
 object Backup {
 
     fun backup() {
@@ -9,4 +12,10 @@ object Backup {
     fun autoBackup() {
 
     }
+
+    private fun backupBookshelf() {
+        val books = App.db.bookDao().allBooks
+        val json = GSON.toJson(books)
+
+    }
 }

app/src/main/res/menu/read_book.xml

@@ -1,7 +1,7 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
-    tools:context=".view.activity.MainActivity">
+    tools:context=".ui.main.MainActivity">
 
     <group android:id="@+id/menuOnLine">
         <item