From 65e99758e7a3a70b9c0c9ebbfabecb4a161d7fe2 Mon Sep 17 00:00:00 2001
From: cgspine <cgspine@gmail.com>
Date: Wed, 18 Aug 2021 14:28:23 +0800
Subject: [PATCH] bugfix: error offsetRange if mBottomView == null

---
 .../qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java  | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java b/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java
index 9a68c9f7..5ed0d1b3 100644
--- a/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java
+++ b/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java
@@ -440,9 +440,12 @@ public class QMUIContinuousNestedScrollLayout extends CoordinatorLayout implemen
     }
 
     public int getOffsetRange() {
-        if (mTopView == null || mBottomView == null) {
+        if (mTopView == null && mBottomView == null) {
             return 0;
         }
+        if(mBottomView == null){
+            return Math.max(0, ((View) mTopView).getHeight() - getHeight());
+        }
         int contentHeight = mBottomView.getContentHeight();
         if (contentHeight != IQMUIContinuousNestedBottomView.HEIGHT_IS_ENOUGH_TO_SCROLL) {
             return Math.max(0, ((View) mTopView).getHeight() + contentHeight - getHeight());