ios - 如何使用 UISplitViewController 在详细 View Controller 中获取主视图 Controller ？

Question

我有一个带有主 Controller 和细节 Controller 的 UISplitViewController:

MyMasterController *masterViewController = [[[MyMasterController alloc] initWithDirectory:directoryElement] autorelease];
MyDetailController *detailViewController = [[MyDetailController alloc] init];

masterViewController.detailViewController = detailViewController;

UISplitViewController *splitViewController = [[UISplitViewController alloc] init];
splitViewController.viewControllers = @[[[UINavigationController alloc] initWithRootViewController:masterViewController], [[UINavigationController alloc] initWithRootViewController:detailViewController]];
splitViewController.delegate = self; 

MyDetailController 是一个表 ListView Controller ，我想主视图 Controller 在用户点击单元格时运行一个方法，那么如何在详细 Controller 中获取主 Controller ？

- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
   [master some_method]; // how to get ?
} 

Answer 1

我会改用通知，所以在你的主人中:

-(void) viewDidLoad {

    ...
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(someMethod) name:@"DoSomeMethod" object:nil];

}

-(void) someMethod {

    ...

}

在您的详细信息中:

- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

   [[NSNotificationCenter defaultCenter] postNotificationName:@"DoSomeMethod" object:nil];

}