你如何加上一句；“后退按钮”；在iPad上'；s SplitViewController popover导航栏？

如何在iPad splitview的弹出窗口（左窗格）上添加导航项？这是iPad内置电子邮件应用程序中邮箱/收件箱/草稿导航部分的位置。

将

UISplitViewController

的“主”窗格设置为

UINavigationController

，然后只需按下上面有

navigationItem

的

UIViewController

s

以下是一个示例设置：

UIViewController *masterController = [[MyCustomMasterController alloc] init…];
[[masterController navigationItem] setTitle:@"Root"];

UINavigationController *navController =
    [[UINavigationController alloc] initWithRootController:masterController];

UIViewController *detailController [[MyCustomDetailController alloc] init…];

UISplitViewController *splitView = [[UISplitViewController alloc] init];
[splitView setViewControllers:[NSArray arrayWithObjects:navController,
                                                        detailController,
                                                        nil]];

随后：

UIViewController *subController = [[MyCustomSubController alloc] init…];
[[masterController navigationController] pushViewController:subController
                                                   animated:YES];

将新的

UIViewController

按到

UINavigationController

堆栈将导致

MyCustomMasterController

视图出现一个名为“Root”的后退按钮