//解决问题的关键就下面的这段代码
UIView *headerView = [[UIView alloc] initWithFrame: CGRectMake(0, 0, 320, 44)]; self.tableView.tableHeaderView = headerView; [headerView release]; //加了上面的代码之后tabview就向下移了44个像素,那刚好放上navbar CGRect aScreenRect = [[UIScreen mainScreen] bounds]; //创建navbar UINavigationBar *nav = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, aScreenRect.size.width, 44)]; //创建navbaritem UINavigationItem *NavTitle = [[UINavigationItem alloc] initWithTitle:@"详细介绍"]; [nav pushNavigationItem:NavTitle animated:YES]; [self.view addSubview:nav]; //创建barbutton 创建系统样式的 UIBarButtonItem *item = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemReply target:self action:@selector(navBackBt:)]; //设置barbutton NavTitle.leftBarButtonItem = item; [nav setItems:[NSArray arrayWithObject:NavTitle]]; [item release]; [NavTitle release]; [nav release];
这样就OK了