Question

我有一个像这样设置的UISplitViewController：

-(IBAction)makeStory:(id)sender{
NSLog(@"makeStory:");

    makeStoryTableViewController = [[MakeStoryTableViewController alloc] initWithNibName:@"MakeStoryTableViewController" bundle:nil];
    MakeSentenceTableViewController *detailViewController = [[MakeSentenceTableViewController alloc] initWithNibName:@"MakeSentenceTableViewController" bundle:nil];
    UISplitViewController *splitViewController = [[[UISplitViewController alloc] init] autorelease];

    UINavigationController *rootNav = [[[UINavigationController alloc] initWithRootViewController:makeStoryTableViewController]autorelease];

    UINavigationController *detailNav = [[[UINavigationController alloc] initWithRootViewController:detailViewController] autorelease];

    splitViewController.viewControllers = [NSArray arrayWithObjects:rootNav, detailNav, nil];
    splitViewController.delegate        = makeStoryTableViewController;

    StoryBotAppDelegate *appDelegate = (StoryBotAppDelegate *)[[UIApplication sharedApplication] delegate];
    [appDelegate.window setRootViewController:splitViewController];
}

当我尝试在didSelectRowAtIndexPath：的UISplitView委托中设置detailView时，我只能访问NavigationController：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {   
    NSLog(@"ViewControllers: %@", [self.splitViewController viewControllers]);
    MakeSentenceTableViewController *detailViewController = [[self.splitViewController viewControllers] objectAtIndex:1];
    Story *storySet = [fetchedResultsController objectAtIndexPath:indexPath];
    NSLog(@"detailViewController: %@", detailViewController); //Logs a UINavigationController
    [detailViewController setStory:storySet]; //Fails here because Navigation Controllers Can't setStory!
    [detailViewController refreshTables];
}

哪个有意义，但是如何访问UINavigationControllers负责的TableView？如果我删除* rootNav和* detailNav并将它们替换为splitViewController.viewControllers语句中的UITableViews它工作正常，但我没有导航栏：

    MakeSentenceTableViewController *detailViewController = [[MakeSentenceTableViewController alloc] initWithNibName:@"MakeSentenceTableViewController" bundle:nil];
    UISplitViewController *splitViewController = [[[UISplitViewController alloc] init] autorelease];

    //UINavigationController *rootNav = [[[UINavigationController alloc] initWithRootViewController:makeStoryTableViewController]autorelease];

    //UINavigationController *detailNav = [[[UINavigationController alloc] initWithRootViewController:detailViewController] autorelease];

    splitViewController.viewControllers = [NSArray arrayWithObjects:makeStoryTableViewController, detailViewController, nil];
    splitViewController.delegate        = makeStoryTableViewController;

    StoryBotAppDelegate *appDelegate = (StoryBotAppDelegate *)[[UIApplication sharedApplication] delegate];
    [appDelegate.window setRootViewController:splitViewController];

如何访问Detail TableView控制器并保留导航栏？

Answer 1

以下是我弄清楚的方法。我犯了两个错误，在那些错误中我不得不使用 UINavigationController.viewControllers ObjectAtIndex：属性。

在函数makeStory中，我错误地将UINavigationController指定为委托而不是makeStoryTableViewController。我通过这样做修复它，而是（特别注意splitViewController.delegate部分）：

MakeSentenceTableViewController *detailViewController = [[MakeSentenceTableViewController alloc] initWithNibName:@"MakeSentenceTableViewController" bundle:nil]; 
UISplitViewController *splitViewController = [[[UISplitViewController alloc] init] autorelease];

UINavigationController *rootNav = [[[UINavigationController alloc] initWithRootViewController:makeStoryTableViewController]autorelease];

UINavigationController *detailNav = [[[UINavigationController alloc] initWithRootViewController:detailViewController] autorelease];

splitViewController.viewControllers = [NSArray arrayWithObjects:rootNav, detailNav, nil];

//splitViewController.viewControllers = [NSArray arrayWithObjects:makeStoryTableViewController, detailViewController, nil];
//RootViewController *root = (RootViewController *)[navigationController.viewControllers objectAtIndex:0]

splitViewController.delegate        = [rootNav.viewControllers objectAtIndex:0];

NSLog(@"delegate: %@",  [rootNav.viewControllers objectAtIndex:0]);

StoryBotAppDelegate *appDelegate = (StoryBotAppDelegate *)[[UIApplication sharedApplication] delegate];
NSLog(@"RootViewController: %@", appDelegate.window);

[appDelegate.window setRootViewController:splitViewController];

NSLog(@"AppDelegate.window: %@", appDelegate.window.rootViewController);

我再次犯了同样的错误，这次是在didSelectRowAtIndexPath：并尝试在UINavigationController中设置setStory。为了解决这个问题，我做了这个（特别关注navControllerDetail.viewControllers：

UINavigationController *navControllerDetail;
navControllerDetail = [[self.splitViewController viewControllers] objectAtIndex:1];



MakeSentenceTableViewController *detailViewController;

detailViewController = [navControllerDetail.viewControllers objectAtIndex:0];

Story *storySet = [fetchedResultsController objectAtIndexPath:indexPath];



NSLog(@"detailViewController: %@", detailViewController);
[detailViewController setStory:storySet];
[detailViewController refreshTables];

现在，只要我能弄明白如何获得SplitViewController to rotate properly！

当UINavigationController阻塞时访问UITableView（在UISplitViewController中）

1 个答案: