fix scrollView顶部时下拉刷新

app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt

@@ -423,15 +423,14 @@ class BookInfoActivity :
                 }
             }
         }
-
+        scrollView.setOnScrollChangeListener { _, _, scrollY, _, _ ->
+            refreshLayout?.isEnabled = (scrollY <= 0)
+        }
         refreshLayout?.setOnRefreshListener {
-            // scrollView 顶部
-            if (scrollView.scrollY <= 0) {
             refreshLayout.isRefreshing = false
             refreshBook()
         }
     }
-    }
 
     private fun setSourceVariable() {
         launch {

app/src/main/res/layout/activity_book_info.xml

@@ -399,6 +399,6 @@
 
         </LinearLayout>
 
-    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 
 </androidx.constraintlayout.widget.ConstraintLayout>