如何使用UISplitViewController获取详细视图控制器中的主视图控制器？

Question

我有一个UISplitViewController主控制器和细节控制器:

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; 

该MyDetailController是表列表视图控制器,我想掌握视图控制器运行的一种方法,当用户单击单元格,那么如何获得详细控制器主控制器？

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

Answer 1

我会使用通知,所以在你的主人:

-(void) viewDidLoad {

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

}

-(void) someMethod {

    ...

}

在你的细节:

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

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

}