-Fixed flipping image on quickscaling when ScaleGestureDetector retur…

…ns scale factor below zero
Baseflow · Nov 28, 2018 · a84eba1 · a84eba1
1 parent 0564bde
commit a84eba1
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/photoview/src/main/java/com/github/chrisbanes/photoview/CustomGestureDetector.java b/photoview/src/main/java/com/github/chrisbanes/photoview/CustomGestureDetector.java
@@ -55,9 +55,10 @@ public boolean onScale(ScaleGestureDetector detector) {
 
                 if (Float.isNaN(scaleFactor) || Float.isInfinite(scaleFactor))
                     return false;
-
-                mListener.onScale(scaleFactor,
-                        detector.getFocusX(), detector.getFocusY());
+                if (scaleFactor >= 0) {
+                    mListener.onScale(scaleFactor,
+                            detector.getFocusX(), detector.getFocusY());
+                }
                 return true;
             }