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 b147d44df..4a602e66b 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
@@ -4,24 +4,16 @@ import android.content.Intent
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
-import androidx.appcompat.app.ActionBarDrawerToggle
-import androidx.core.view.GravityCompat
-import androidx.drawerlayout.widget.DrawerLayout
-import com.google.android.material.navigation.NavigationView
 import io.legado.app.R
 import io.legado.app.base.BaseActivity
 import io.legado.app.help.permission.Permissions
 import io.legado.app.help.permission.PermissionsCompat
-import io.legado.app.help.storage.Backup
 import io.legado.app.help.storage.Restore
-import io.legado.app.ui.replacerule.ReplaceRuleActivity
 import io.legado.app.ui.search.SearchActivity
 import io.legado.app.utils.getViewModel
 import kotlinx.android.synthetic.main.activity_main.*
-import kotlinx.android.synthetic.main.app_bar_main.*
-import org.jetbrains.anko.startActivity
 
-class MainActivity : BaseActivity<MainViewModel>(), NavigationView.OnNavigationItemSelectedListener {
+class MainActivity : BaseActivity<MainViewModel>() {
     override val viewModel: MainViewModel
         get() = getViewModel(MainViewModel::class.java)
 
@@ -31,24 +23,7 @@ class MainActivity : BaseActivity<MainViewModel>(), NavigationView.OnNavigationI
     override fun onViewModelCreated(viewModel: MainViewModel, savedInstanceState: Bundle?) {
         fab.setOnClickListener { startActivity(Intent(this, SearchActivity::class.java)) }
 
-        val toggle = ActionBarDrawerToggle(
-            this, drawer_layout, title_bar.toolbar,
-            R.string.navigation_drawer_open,
-            R.string.navigation_drawer_close
-        )
-        drawer_layout.addDrawerListener(toggle)
-        toggle.syncState()
 
-        nav_view.setNavigationItemSelectedListener(this)
-    }
-
-    override fun onBackPressed() {
-        val drawerLayout: DrawerLayout = findViewById(R.id.drawer_layout)
-        if (drawerLayout.isDrawerOpen(GravityCompat.START)) {
-            drawerLayout.closeDrawer(GravityCompat.START)
-        } else {
-            super.onBackPressed()
-        }
     }
 
     override fun onCompatCreateOptionsMenu(menu: Menu): Boolean {
@@ -60,23 +35,6 @@ class MainActivity : BaseActivity<MainViewModel>(), NavigationView.OnNavigationI
         return super.onCompatOptionsItemSelected(item)
     }
 
-    override fun onNavigationItemSelected(item: MenuItem): Boolean {
-        // Handle navigation view item clicks here.
-        when (item.itemId) {
-            R.id.nav_backup -> Backup.backup()
-            R.id.nav_restore -> Restore.restore()
-            R.id.nav_import_old -> importYueDu()
-            R.id.nav_import_github -> Restore.importFromGithub()
-            R.id.nav_replace_rule -> startActivity<ReplaceRuleActivity>()
-            R.id.nav_send -> {
-
-            }
-        }
-        val drawerLayout: DrawerLayout = findViewById(R.id.drawer_layout)
-        drawerLayout.closeDrawer(GravityCompat.START)
-        return true
-    }
-
     private fun importYueDu() {
         PermissionsCompat.Builder(this)
             .addPermissions(*Permissions.Group.STORAGE)
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 405e13f17..6791f4943 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,25 +1,26 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.drawerlayout.widget.DrawerLayout
+<androidx.coordinatorlayout.widget.CoordinatorLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:tools="http://schemas.android.com/tools"
         xmlns:app="http://schemas.android.com/apk/res-auto"
-        android:id="@+id/drawer_layout"
-        android:layout_width="match_parent" android:layout_height="match_parent"
-        tools:openDrawer="start">
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".ui.main.MainActivity">
 
-    <include
-            layout="@layout/app_bar_main"
+    <io.legado.app.ui.widget.TitleBar
+            android:id="@+id/title_bar"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"/>
+            android:fitsSystemWindows="true"
+            android:layout_height="wrap_content"/>
 
-    <com.google.android.material.navigation.NavigationView
-            android:id="@+id/nav_view"
+    <include layout="@layout/content_main"/>
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:id="@+id/fab"
             android:layout_width="wrap_content"
-            android:layout_height="match_parent"
-            android:layout_gravity="start"
-            android:fitsSystemWindows="true"
-            app:insetForeground="@color/transparent"
-            app:headerLayout="@layout/nav_header_main"
-            app:menu="@menu/activity_main_drawer"/>
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom|end"
+            android:layout_margin="@dimen/fab_margin"
+            app:srcCompat="@android:drawable/ic_dialog_email"/>
 
-</androidx.drawerlayout.widget.DrawerLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/app/src/main/res/layout/app_bar_main.xml b/app/src/main/res/layout/app_bar_main.xml
deleted file mode 100644
index 9de695516..000000000
--- a/app/src/main/res/layout/app_bar_main.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.coordinatorlayout.widget.CoordinatorLayout
-        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"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        tools:context=".ui.main.MainActivity">
-
-    <io.legado.app.ui.widget.TitleBar
-            android:id="@+id/title_bar"
-            android:layout_width="match_parent"
-            android:fitsSystemWindows="true"
-            android:layout_height="wrap_content"/>
-
-    <include layout="@layout/content_main"/>
-
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:id="@+id/fab"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="bottom|end"
-            android:layout_margin="@dimen/fab_margin"
-            app:srcCompat="@android:drawable/ic_dialog_email"/>
-
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/content_main.xml b/app/src/main/res/layout/content_main.xml
index 10ee1e73e..1e7c273e2 100644
--- a/app/src/main/res/layout/content_main.xml
+++ b/app/src/main/res/layout/content_main.xml
@@ -6,7 +6,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         app:layout_behavior="@string/appbar_scrolling_view_behavior"
-        tools:showIn="@layout/app_bar_main"
+        tools:showIn="@layout/activity_main"
         tools:context=".ui.main.MainActivity">
 
     <TextView