diff --git a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
index e0b7be1aa..06eb167a7 100644
--- a/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt
@@ -35,7 +35,9 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.conflate
 import kotlinx.coroutines.launch
 
-
+/**
+ * 换源界面
+ */
 class ChangeBookSourceDialog() : BaseDialogFragment(R.layout.dialog_book_change_source),
     Toolbar.OnMenuItemClickListener,
     ChangeBookSourceAdapter.CallBack {