diff --git a/qmui/src/main/java/com/qmuiteam/qmui/widget/QMUICollapsingTopBarLayout.java b/qmui/src/main/java/com/qmuiteam/qmui/widget/QMUICollapsingTopBarLayout.java
index df9458cb0..2053a804e 100644
--- a/qmui/src/main/java/com/qmuiteam/qmui/widget/QMUICollapsingTopBarLayout.java
+++ b/qmui/src/main/java/com/qmuiteam/qmui/widget/QMUICollapsingTopBarLayout.java
@@ -95,6 +95,7 @@ public class QMUICollapsingTopBarLayout extends FrameLayout {
     private int mScrimVisibleHeightTrigger = -1;
 
     private AppBarLayout.OnOffsetChangedListener mOnOffsetChangedListener;
+    private ValueAnimator.AnimatorUpdateListener mScrimUpdateListener;
 
     int mCurrentOffset;
 
@@ -509,6 +510,26 @@ public void setScrimsShown(boolean shown, boolean animate) {
         }
     }
 
+    /**
+     *
+     * @param scrimUpdateListener 为 null 则是 removeUpdateListener
+     */
+    public void setScrimUpdateListener(ValueAnimator.AnimatorUpdateListener scrimUpdateListener) {
+        if (mScrimUpdateListener != scrimUpdateListener) {
+            if (mScrimAnimator == null) {
+                mScrimUpdateListener = scrimUpdateListener;
+            } else {
+                if (mScrimUpdateListener != null) {
+                    mScrimAnimator.removeUpdateListener(mScrimUpdateListener);
+                }
+                mScrimUpdateListener = scrimUpdateListener;
+                if(mScrimUpdateListener != null){
+                    mScrimAnimator.addUpdateListener(mScrimUpdateListener);
+                }
+            }
+        }
+    }
+
     private void animateScrim(int targetAlpha) {
         ensureToolbar();
         if (mScrimAnimator == null) {
@@ -524,6 +545,9 @@ public void onAnimationUpdate(ValueAnimator animator) {
                     setScrimAlpha((Integer) animator.getAnimatedValue());
                 }
             });
+            if (mScrimUpdateListener != null) {
+                mScrimAnimator.addUpdateListener(mScrimUpdateListener);
+            }
         } else if (mScrimAnimator.isRunning()) {
             mScrimAnimator.cancel();
         }
diff --git a/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/fragment/components/QDCollapsingTopBarLayoutFragment.java b/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/fragment/components/QDCollapsingTopBarLayoutFragment.java
index 30f6be0e2..71fc85878 100644
--- a/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/fragment/components/QDCollapsingTopBarLayoutFragment.java
+++ b/qmuidemo/src/main/java/com/qmuiteam/qmuidemo/fragment/components/QDCollapsingTopBarLayoutFragment.java
@@ -1,7 +1,9 @@
 package com.qmuiteam.qmuidemo.fragment.components;
 
+import android.animation.ValueAnimator;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 
@@ -23,6 +25,7 @@
 
 @Widget(widgetClass = QMUICollapsingTopBarLayout.class, iconRes = R.mipmap.icon_grid_collapse_top_bar)
 public class QDCollapsingTopBarLayoutFragment extends BaseFragment {
+    private static final String TAG = "CollapsingTopBarLayout";
 
     private View mRootView;
     QDRecyclerViewAdapter mRecyclerViewAdapter;
@@ -44,6 +47,13 @@ protected View onCreateView() {
         mRecyclerViewAdapter.setItemCount(10);
         mRecyclerView.setAdapter(mRecyclerViewAdapter);
 
+        mCollapsingTopBarLayout.setScrimUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+            @Override
+            public void onAnimationUpdate(ValueAnimator animation) {
+                Log.i(TAG, "scrim: " + animation.getAnimatedValue());
+            }
+        });
+
         return mRootView;
     }