up

app/src/main/java/io/legado/app/data/AppDatabase.kt

@@ -20,14 +20,14 @@ import io.legado.app.help.storage.Restore
 abstract class AppDatabase : RoomDatabase() {
 
     companion object {
-        var DestructiveMigration = false
+
         private const val DATABASE_NAME = "legado.db"
+
         fun createDatabase(context: Context): AppDatabase {
             return Room.databaseBuilder(context, AppDatabase::class.java, DATABASE_NAME)
                 .fallbackToDestructiveMigration()
                 .addCallback(object : Callback() {
                     override fun onDestructiveMigration(db: SupportSQLiteDatabase) {
-                        DestructiveMigration = true
                         Restore.restore()
                     }
                 })

app/src/main/java/io/legado/app/ui/main/MainActivity.kt

@@ -13,7 +13,6 @@ import io.legado.app.BuildConfig
 import io.legado.app.R
 import io.legado.app.base.VMBaseActivity
 import io.legado.app.constant.Bus
-import io.legado.app.data.AppDatabase
 import io.legado.app.help.ActivityHelp
 import io.legado.app.help.permission.Permissions
 import io.legado.app.help.permission.PermissionsCompat
@@ -48,7 +47,6 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
         view_pager_main.adapter = TabFragmentPageAdapter(supportFragmentManager)
         view_pager_main.addOnPageChangeListener(this)
         bottom_navigation_view.setOnNavigationItemSelectedListener(this)
-        restore()
         upVersion()
     }
 
@@ -63,7 +61,7 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
     }
 
     private fun restore() {
-        if (AppDatabase.DestructiveMigration) return
+
         launch {
             if (withContext(IO) { App.db.bookDao().allBookCount == 0 }) {
                 alert(title = "导入") {