diff --git a/src/extra/widgets/animimg/lv_animimg.c b/src/extra/widgets/animimg/lv_animimg.c
index 78531c19f1..8dc309b41b 100644
--- a/src/extra/widgets/animimg/lv_animimg.c
+++ b/src/extra/widgets/animimg/lv_animimg.c
@@ -54,24 +54,12 @@ const lv_obj_class_t lv_animimg_class = {
  *   GLOBAL FUNCTIONS
  **********************/
 
-/**
- * Create an animation image objects
- * @param par pointer to an object, it will be the parent of the new animation image
- * @param copy pointer to a image object, if not NULL then the new object will be copied from it
- * @return pointer to the created animation image
- */
 lv_obj_t * lv_animimg_create(lv_obj_t * parent)
 {
     LV_LOG_INFO("begin")
-    return lv_obj_create_from_class(&lv_animimg_class, parent);
+    return lv_obj_class_create_obj(&lv_animimg_class, parent, NULL);
 }
 
-/**
- * Set the animation images source.
- * @param img pointer to an animation image object
- * @param dsc pointer to a series images
- * @param num images' number
- */
 void lv_animimg_set_src(lv_obj_t * obj,  lv_img_dsc_t ** dsc, uint8_t num)
 {
     lv_animimg_t * animimg = (lv_animimg_t *)obj;
@@ -80,10 +68,6 @@ void lv_animimg_set_src(lv_obj_t * obj,  lv_img_dsc_t ** dsc, uint8_t num)
     lv_anim_set_values(&animimg->anim, 0 , num);
 }
 
-/**
- * Startup the  image animation.
- * @param img pointer to an animation image object
- */
 void lv_animimg_start(lv_obj_t * obj)
 {
     lv_animimg_t * animimg = (lv_animimg_t *)obj;
@@ -94,31 +78,13 @@ void lv_animimg_start(lv_obj_t * obj)
  * Setter functions
  *====================*/
 
-/**
- * Set the  image animation wait before repeat. unit:ms
- * @param img pointer to an animation image object
- */
-void lv_animimg_set_repeat_delay(lv_obj_t * obj, uint32_t delay)
-{
-    lv_animimg_t * animimg = (lv_animimg_t *)obj;
-    animimg->anim.repeat_delay = delay;
-}
-
-/**
- * Set the  image animation duration time. unit:ms
- * @param img pointer to an animation image object
- */
 void lv_animimg_set_duration(lv_obj_t * obj, uint32_t duration)
 {
     lv_animimg_t * animimg = (lv_animimg_t *)obj;
     lv_anim_set_time(&animimg->anim, duration);
-    lv_anim_set_playback_time(&animimg->anim, duration);
+    lv_anim_set_playback_delay(&animimg->anim, duration);
 }
 
-/**
- * Set the image animation reapeatly play times.
- * @param img pointer to an animation image object
- */
 void lv_animimg_set_repeat_count(lv_obj_t * obj, uint16_t count)
 {
     lv_animimg_t * animimg = (lv_animimg_t *)obj;
@@ -148,21 +114,9 @@ static void lv_animimg_constructor(const lv_obj_class_t * class_p, lv_obj_t * ob
     lv_anim_set_time(&animimg->anim, 30);
     lv_anim_set_exec_cb(&animimg->anim, (lv_anim_exec_xcb_t)index_change);
     lv_anim_set_values(&animimg->anim, 0 , 1);
-    lv_anim_set_playback_time(&animimg->anim, 100);
     lv_anim_set_repeat_count(&animimg->anim, LV_ANIM_REPEAT_INFINITE);
 }
 
-/**
- * Handle the drawing related tasks of the images
- * @param img pointer to an image animationobject
- * @param clip_area the object will be drawn only in this area
- * @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
- *                                  (return 'true' if yes)
- *             LV_DESIGN_DRAW: draw the object (always return 'true')
- *             LV_DESIGN_DRAW_POST: drawing after every children are drawn
- * @param return an element of `lv_design_res_t`
- */
-
 static void index_change(lv_obj_t * obj, int32_t index)
 {
     lv_coord_t idx;
diff --git a/src/extra/widgets/animimg/lv_animimg.h b/src/extra/widgets/animimg/lv_animimg.h
index 14f5cb58ab..ce4461b555 100644
--- a/src/extra/widgets/animimg/lv_animimg.h
+++ b/src/extra/widgets/animimg/lv_animimg.h
@@ -54,29 +54,10 @@ typedef uint8_t lv_animimg_part_t;
  */
 lv_obj_t * lv_animimg_create(lv_obj_t * parent);
 
-/**
- * Startup the  image animation.
- * @param img pointer to an animation image object
- */
-void lv_animimg_start(lv_obj_t * obj);
-
-
 /*=====================
  * Setter functions
  *====================*/
 
-/**
- * Set the  image animation duration time. unit:ms
- * @param img pointer to an animation image object
- */
-void lv_animimg_set_duration(lv_obj_t * img, uint32_t duration);
-
-/**
- * Set the  image animation wait before repeat. unit:ms
- * @param img pointer to an animation image object
- */
-void lv_animimg_set_repeat_delay(lv_obj_t * img, uint32_t delay);
-
 /**
  * Set the  image animation images source.
  * @param img pointer to an animation image object
@@ -85,6 +66,18 @@ void lv_animimg_set_repeat_delay(lv_obj_t * img, uint32_t delay);
  */
 void lv_animimg_set_src(lv_obj_t * img,  lv_img_dsc_t ** dsc, uint8_t num);
 
+/**
+ * Startup the  image animation.
+ * @param img pointer to an animation image object
+ */
+void lv_animimg_start(lv_obj_t * obj);
+
+/**
+ * Set the  image animation duration time. unit:ms
+ * @param img pointer to an animation image object
+ */
+void lv_animimg_set_duration(lv_obj_t * img, uint32_t duration);
+
 /**
  * Set the image animation reapeatly play times.
  * @param img pointer to an animation image object