Add cancelling-other-gesture logic for iOS6.

inamiy · Mar 17, 2013 · 50ee8bd · 50ee8bd
1 parent 8d882e2
commit 50ee8bd
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/YIEdgePanGestureRecognizer/YIEdgePanGestureRecognizer.m b/YIEdgePanGestureRecognizer/YIEdgePanGestureRecognizer.m
@@ -86,6 +86,18 @@ - (BOOL)canPreventGestureRecognizer:(UIGestureRecognizer *)preventedGestureRecog
 - (BOOL)canBePreventedByGestureRecognizer:(UIGestureRecognizer *)preventingGestureRecognizer
 {
     if (!CGPointEqualToPoint(_firstTouchLocation, CGPointZero)) {
+
+        //
+        // Force-cancel other gestures (e.g. scrolling) for iOS6
+        //
+        // NOTE:
+        // iOS5 calls canPreventGestureRecognizer when other gesture is active but not for iOS6,
+        // so we implement cancelling logic on canBePreventedByGestureRecognizer here.
+        //
+        BOOL enabled = preventingGestureRecognizer.enabled;
+        preventingGestureRecognizer.enabled = NO;
+        preventingGestureRecognizer.enabled = enabled;
+
         return NO;
     }
     else {