diff --git a/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPager.java b/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPager.java
index edd53230a1b..34d891e9983 100644
--- a/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPager.java
+++ b/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPager.java
@@ -68,10 +68,9 @@ public void run() {
     // Reusable int array to be passed to method calls that mutate it in order to "return" two ints.
     private final int[] mScrollOffsetPair = new int[2];
     private int mNestedScrollOffset = 0;
-
+    //防抖时间 ms
     protected int mScrollEventThrottle = 0;
 
-
     private void init(Context context, boolean isVertical) {
         setCallPageChangedOnFirstLayout(true);
         setEnableReLayoutOnAttachToWindow(false);
diff --git a/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPagerController.java b/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPagerController.java
index 4a6dfbf63da..f386e149cac 100644
--- a/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPagerController.java
+++ b/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/HippyViewPagerController.java
@@ -132,10 +132,11 @@ public void setOverflow(HippyViewPager pager, String overflow) {
         pager.setOverflow(overflow);
     }
 
-    @HippyControllerProps(name = "scrollEventThrottle", defaultType = HippyControllerProps.NUMBER, defaultNumber = 30.0D)
+    @HippyControllerProps(name = "scrollEventThrottle", defaultType = HippyControllerProps.NUMBER, defaultNumber = 0)
     public void setScrollEventThrottle(HippyViewPager pager,int scrollEventThrottle) {
         pager.setScrollEventThrottle(scrollEventThrottle);
     }
+
     private void resolveInvalidParams(@Nullable Promise promise) {
         if (promise != null) {
             String msg = "Invalid parameter!";
diff --git a/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/ViewPagerPageChangeListener.java b/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/ViewPagerPageChangeListener.java
index 1320d8ba193..11dee4dd355 100644
--- a/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/ViewPagerPageChangeListener.java
+++ b/renderer/native/android/src/main/java/com/tencent/mtt/hippy/views/viewpager/ViewPagerPageChangeListener.java
@@ -108,6 +108,8 @@ private void onScrollStateChangeToIdle() {
         params.put(PAGE_ITEM_POSITION, mLastPageIndex);
         EventUtils.sendComponentEvent(lastView, EventUtils.EVENT_PAGE_ITEM_DID_DISAPPEAR, params);
         mLastPageIndex = mCurrPageIndex;
+        //防抖只是针对onScroll事件。 状态事件不参与过滤，也不会被丢弃。
+        // 状态变成idle只是重置mLastScrollEventTimeStamp，以便下次滑动开始时，重新计算。
         mLastScrollEventTimeStamp = -1;
     }