diff --git a/core/java/android/widget/NumberPicker.java b/core/java/android/widget/NumberPicker.java
index 19cc3c2ee2758..e4956dd5c7695 100644
--- a/core/java/android/widget/NumberPicker.java
+++ b/core/java/android/widget/NumberPicker.java
@@ -1098,6 +1098,16 @@ public class NumberPicker extends LinearLayout {
         }
     }
 
+    @Override
+    public int computeVerticalScrollOffset() {
+        return mCurrentScrollOffset;
+    }
+
+    @Override
+    public int computeVerticalScrollRange() {
+        return mSelectorIndices.length * mSelectorElementHeight;
+    }
+
     @Override
     public int getSolidColor() {
         return mSolidColor;