iOS，在不使用 segue 的情况下为场景设置委托(delegate)

Question

我试图在不使用 segue 的情况下导航到场景。我使用的代码如下所示:

UIStoryboard * storyboard = [UIStoryboard storyboardWithName:storyboardName bundle:nil];
MyViewController * controller = (MyViewController *)[storyboard instantiateViewControllerWithIdentifier:viewControllerID];
[self presentViewController:controller animated:YES completion:nil];

我的问题是为这个场景设置委托(delegate)。通常我会做以下事情:

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // Check the segue identifier
    if ([[segue identifier] isEqualToString:@"showDetail"])
    {
        [[segue destinationViewController] setDelegate:self];
    }
}

但我不想使用转场。谁能告诉我如何为场景设置代理？

谢谢

Answer 1

UIStoryboard * storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
DetailViewController * controller = (DetailViewController *)[storyboard instantiateViewControllerWithIdentifier:@"DetailView"];
controller.delegate = self;
[self presentViewController:controller animated:YES completion:nil];