From 85e600aeeadf6d85660bd73d4fb2859a248505ab Mon Sep 17 00:00:00 2001
From: Wenchao Ding <f33chobits@gmail.com>
Date: Sun, 7 Aug 2016 10:02:53 +0800
Subject: [PATCH] Smarter scope gesture

Smarter scope gesture
---
 FSCalendar/FSCalendarAnimator.m | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/FSCalendar/FSCalendarAnimator.m b/FSCalendar/FSCalendarAnimator.m
index b29e7c7..18c8c5b 100644
--- a/FSCalendar/FSCalendarAnimator.m
+++ b/FSCalendar/FSCalendarAnimator.m
@@ -87,8 +87,8 @@
         return YES;
     }
     if (gestureRecognizer == self.calendar.scopeGesture) {
-        CGPoint velocity = [self.collectionView.panGestureRecognizer velocityInView:self.collectionView];
-        BOOL shouldStart = (ABS(velocity.x)<ABS(velocity.y));
+        CGPoint velocity = [(UIPanGestureRecognizer *)gestureRecognizer velocityInView:self.calendar.daysContainer];
+        BOOL shouldStart = (ABS(velocity.x)<=ABS(velocity.y));
         if (shouldStart) {
             self.calendar.collectionView.panGestureRecognizer.enabled = NO;
             self.calendar.collectionView.panGestureRecognizer.enabled = YES;
@@ -98,6 +98,11 @@
     return NO;
 }
 
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    return otherGestureRecognizer == self.collectionView.panGestureRecognizer && self.collectionView.decelerating;
+}
+
 - (void)scopeTransitionDidBegin:(UIPanGestureRecognizer *)panGesture
 {
     self.state = FSCalendarTransitionStateInProgress;