diff --git a/app/src/main/java/io/legado/app/utils/ActivityExtensions.kt b/app/src/main/java/io/legado/app/utils/ActivityExtensions.kt
index 3163fcf98..319f8ea54 100644
--- a/app/src/main/java/io/legado/app/utils/ActivityExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/ActivityExtensions.kt
@@ -73,9 +73,6 @@ val Activity.navigationBarHeight: Int
 
 /**
  * 返回导航栏位置
- * 0 bottom
- * 1 left
- * 2 right
  */
 val Activity.navigationBarPos: POS
     get() {