diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000000000000000000000000000000000000..fd00ab548f90e4242a5b444fdae8b2e85f5c6491
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,2 @@
+## 0.0.1_alpha
+* refactor: For module library Android-to-OpenHarmony
diff --git a/photodraweeview/src/main/java/com/me/relex/photodraweeview/PhotoView.java b/photodraweeview/src/main/java/com/me/relex/photodraweeview/PhotoView.java
index 36a92cddd6777e8945364dd9852d0c9b61a45a0a..5ce1e44cafafa6edfd6d41baeb69761981f77e50 100644
--- a/photodraweeview/src/main/java/com/me/relex/photodraweeview/PhotoView.java
+++ b/photodraweeview/src/main/java/com/me/relex/photodraweeview/PhotoView.java
@@ -343,7 +343,10 @@ public class PhotoView extends Image implements Component.TouchEventListener, Co
     }
 
     /**
-     *  计算两指触摸点之间的距离
+     * 计算两指触摸点之间的距离
+     *
+     * @param touchEvent touch事件
+     * @return 两点之间的距离
      */
     private float calculateDist(TouchEvent touchEvent) {
         float pointX = touchEvent.getPointerPosition(0).getX() - touchEvent.getPointerPosition(1).getX();