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 2ad7dcb79..781f840d1 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
@@ -39,7 +39,9 @@ import io.legado.app.utils.showDialogFragment
 import io.legado.app.utils.toastOnUi
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 
-
+/**
+ * 主界面
+ */
 class MainActivity : VMBaseActivity<ActivityMainBinding, MainViewModel>(),
     BottomNavigationView.OnNavigationItemSelectedListener,
     BottomNavigationView.OnNavigationItemReselectedListener {