add missing invalidate call (#35)

* add missing invalidate call * added check if scrollbar is enabled (at least in one direction)
natario1 · Jun 17, 2018 · 8150d49 · 8150d49
1 parent 4b6b05f
commit 8150d49
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/library/src/main/java/com/otaliastudios/zoom/ZoomLayout.java b/library/src/main/java/com/otaliastudios/zoom/ZoomLayout.java
@@ -159,7 +159,9 @@ public void onUpdate(ZoomEngine helper, Matrix matrix) {
             invalidate();
         }
 
-        awakenScrollBars();
+        if ((isHorizontalScrollBarEnabled() || isVerticalScrollBarEnabled()) && !awakenScrollBars()) {
+            invalidate();
+        }
     }
 
     @Override