摘要： The object graph is all the stuff in your applications model (the model part of view and controller). This stuff includes not only the objects, but also the relationships between the objects. Understanding what an object graph is and how it relates to your iOS application will make things like Core. 阅读全文

摘要： -(UIView*)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{ if(hideTableSection && section == 1) return [[UIView alloc] initWithFrame:CGRectZero]; return nil;} - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{ if(se... 阅读全文