diff --git a/app/.gitignore b/app/.gitignore
index 796b96d1c..3f2a4d9f6 100644
--- a/app/.gitignore
+++ b/app/.gitignore
@@ -1 +1,2 @@
 /build
+/schemas
diff --git a/app/src/main/java/io/legado/app/ui/main/MainActivity.kt b/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
index c11148349..2b0156d5d 100644
--- a/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
@@ -7,6 +7,7 @@ import androidx.appcompat.app.ActionBarDrawerToggle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.GravityCompat
 import androidx.drawerlayout.widget.DrawerLayout
+import androidx.lifecycle.ViewModelProviders
 import com.google.android.material.navigation.NavigationView
 import io.legado.app.R
 import io.legado.app.utils.longSnackbar
@@ -19,7 +20,6 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
-
         setSupportActionBar(toolbar)
 
         fab.setOnClickListener { it.longSnackbar(R.string.app_name) }
@@ -33,6 +33,7 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
         toggle.syncState()
 
         nav_view.setNavigationItemSelectedListener(this)
+        val mainViewModel = ViewModelProviders.of(this).get(MainViewModel::class.java)
     }
 
     override fun onBackPressed() {
diff --git a/app/src/main/java/io/legado/app/ui/main/MainModel.kt b/app/src/main/java/io/legado/app/ui/main/MainModel.kt
new file mode 100644
index 000000000..86da567f6
--- /dev/null
+++ b/app/src/main/java/io/legado/app/ui/main/MainModel.kt
@@ -0,0 +1,5 @@
+package io.legado.app.ui.main
+
+class MainModel {
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/main/MainViewModel.kt b/app/src/main/java/io/legado/app/ui/main/MainViewModel.kt
new file mode 100644
index 000000000..82a9146c5
--- /dev/null
+++ b/app/src/main/java/io/legado/app/ui/main/MainViewModel.kt
@@ -0,0 +1,9 @@
+package io.legado.app.ui.main
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+
+class MainViewModel(application: Application) : AndroidViewModel(application) {
+
+
+}
\ No newline at end of file