Bug fix.

FSCalendar.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name             = "FSCalendar"
-  s.version          = "2.7.7"
+  s.version          = "2.7.8"
   s.summary          = "A superiorly awesome iOS7+ calendar control, compatible with Objective-C and Swift."
 
   s.homepage         = "https://github.com/WenchaoD/FSCalendar"

FSCalendar/FSCalendar.m

@@ -386,7 +386,7 @@ - (void)prepareForInterfaceBuilder
     NSDateComponents *components = [self.gregorian components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay fromDate:date];
     components.day = _appearance.fakedSelectedDay?:1;
     [_selectedDates addObject:[self.gregorian dateFromComponents:components]];
-    [self reloadVisibleCells];
+    [self.collectionView reloadData];
 }
 #endif
 
@@ -808,7 +808,6 @@ - (void)registerClass:(Class)cellClass forCellReuseIdentifier:(NSString *)identi
     if ([identifier isEqualToString:FSCalendarBlankCellReuseIdentifier]) {
         [NSException raise:FSCalendarInvalidArgumentsExceptionName format:@"Do not use %@ as the cell reuse identifier.", identifier];
     }
-    [self.collectionView registerClass:nil forCellWithReuseIdentifier:FSCalendarDefaultCellReuseIdentifier];
     [self.collectionView registerClass:cellClass forCellWithReuseIdentifier:identifier];
 
 }
@@ -1075,7 +1074,7 @@ - (void)setDelegate:(id<FSCalendarDelegate>)delegate
 - (void)reloadData
 {
     _needsRequestingBoundingDates = YES;
-    if ([self requestBoundingDatesIfNecessary]) {
+    if ([self requestBoundingDatesIfNecessary] || !self.collectionView.indexPathsForVisibleItems.count) {
         [self invalidateHeaders];
         [self.collectionView reloadData];
     } else {

FSCalendar/FSCalendarHeaderView.m

@@ -147,10 +147,6 @@ - (void)setScrollOffset:(CGFloat)scrollOffset animated:(BOOL)animated
 
 - (void)scrollToOffset:(CGFloat)scrollOffset animated:(BOOL)animated
 {
-    if (CGSizeEqualToSize(self.collectionView.contentSize, CGSizeZero)) {
-        _needsAdjustingMonthPosition = YES;
-        return;
-    }
     if (self.scrollDirection == UICollectionViewScrollDirectionHorizontal) {
         CGFloat step = self.collectionView.fs_width*((self.scrollDirection==UICollectionViewScrollDirectionHorizontal)?0.5:1);
         [_collectionView setContentOffset:CGPointMake((scrollOffset+0.5)*step, 0) animated:animated];

FSCalendar/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.7.7</string>
+	<string>2.7.8</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>