NSNotificationCenter
2015-08-19 20:54 dengchaojie_learner 阅读(126) 评论(0) 编辑 收藏 举报Observer可以用self.collectView
// 2.监听收藏改变通知,并刷新数据
[[NSNotificationCenter defaultCenter] addObserver:self.collectionView selector:@selector(reloadData) name:kCollectionChangeNote object:nil];
很容易忘记写
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}