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我有一個動畫，在iOS 8中可以正常工作，但在iOS 7中不能正常工作。事實上，似乎有時候，部分區塊是動畫的，部分區域不是針對不同的動畫持續時間）。這很難解釋。動畫問題在iOS 7但不在iOS 8
__block BTQMenuItemView *previousToClose = nil;
[UIView animateWithDuration:(animated ? kAnimationDuration : 0.f) animations:^{
[_menuItemViews enumerateObjectsUsingBlock:^(BTQMenuItemView *current, NSUInteger idx, BOOL *stop) {
BTQMenuItemView *previous = (idx > 0 ? _menuItemViews[idx-1] : nil);
if(previous.expanded && sender == previous) {
current.top = current.savedFrame.origin.y + sender.item.contentView.height + (sender.item.titleView ? sender.item.titleView.height - sender.height : 0) + sender.item.marginTopContent;
sender.height += sender.item.contentView.height;
sender.height += sender.item.titleView.height;
sender.item.contentView.top = (sender.item.titleView ? sender.item.titleView.bottom : sender.titleLabel.bottom) + sender.item.marginTopContent;
sender.actionView.height += (sender.item.titleView ? sender.item.titleView.height - sender.actionView.height : 0);
} else {
if(previous.expanded) {
previous.height = previous.savedFrame.size.height;
previous.actionView.height = previous.titleLabel.height;
previous.expanded = NO;
previousToClose = previous;
}
current.height = current.savedFrame.size.height;
current.top = previous.bottom;
}
}];
BTQMenuItemView *lastView = [_menuItemViews lastObject];
_bottomCacheView.height = self.superview.height - self.top - lastView.bottom - _edgeInsets.bottom;
_bottomCacheView.top = lastView.bottom;
} completion:^(BOOL finished) {
BTQMenuItemView *lastView = [_menuItemViews lastObject];
self.height = lastView.bottom;
}];
[previousToClose iconWillOpen:NO];