我有一个模态的故事板场景，我希望所有其他场景都可以访问它。从我的故事板上的每个场景创建模态segue会导致字符串到处乱飞的混乱。有没有一种方法可以不使用segue而是通过编程来调用该场景?
基本上我想要做这样的事情:
MyNewViewController *myNewVC = [[MyNewViewController alloc] init];
[self presentModalViewController:myNewVC animated:YES];
我希望使用模态过渡到一个“隔离”的（不连接任何segue）故事板场景，而不是创建并推送视图控制器类。
可以的。像这样做一些事情来访问VC，然后只需模态推它：
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];
MyNewViewController *myVC = (MyNewViewController *)[storyboard instantiateViewControllerWithIdentifier:@"myViewCont"];
注意：在iOS 6中，方法 presentModalViewController:animated 已被弃用。
新代码应该改为：
NSString * storyboardName = @"MainStoryboard_iPhone";
NSString * viewControllerID = @"ViewID";
UIStoryboard * storyboard = [UIStoryboard storyboardWithName:storyboardName bundle:nil];
MyViewController * controller = (MyViewController *)[storyboard instantiateViewControllerWithIdentifier:viewControllerID];
[self presentViewController:controller animated:YES completion:nil];
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"STORYBOARDNAME" bundle:nil];
UIViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:@"VIEWCONTROLLERIDENTIFIER"];
[self presentModalViewController:vc animated:YES];
我有一个案例，我想从应用程序的主要部分呈现一个视图控制器，其中包括设置和帮助等。为此，我希望它在导航控制器内，就像一个小插件模块，我们可以从UIBarButtonItem调用它。
现在，这可以是在当前故事板中进行，也可以是在另一个故事板中进行，这并不重要。
我想以这种方式做，因为我讨厌我的故事板上到处都是可能存在的segue线条混乱。
以下是如何实现的方法。
- (IBAction)displaySettings:(id)sender
{
LOG_SELECTOR() // google that for extra goodness
// FYI, this can be done using a different storyboard like so.
/*
NSString * storyboardName = @"MainStoryboard_iPhone"; // possibly use device idiom?
UIStoryboard * storyboard = [UIStoryboard storyboardWithName:storyboardName bundle:nil];
*/
// To push a new set of scenes with a new Navigation Controller, it is done like this:
UINavigationController *settingsNC = [self.storyboard instantiateViewControllerWithIdentifier:@"Settings Nav Controller"];
OBSettingsUIViewController *settingsVC = [self.storyboard instantiateViewControllerWithIdentifier:@"Settings root"];
[settingsNC pushViewController:settingsVC animated:NO];
[settingsNC setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
// Present the view controller;
[self presentViewController:settingsNC animated:YES completion:NULL];
}
- (IBAction)dismissThisVC:(id)sender {
[self dismissViewControllerAnimated:YES completion:nil];
}
ProfileVC *vc = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"ProfileVC"];
[self.navigationController pushViewController:vc animated:YES];
调用以导航到其他类
UIWindow *window = [[[UIApplication sharedApplication] windows] objectAtIndex:0];
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle: nil];
UINavigationController *navController = (UINavigationController *)window.rootViewController;
DumpFeed *dump = [storyboard instantiateViewControllerWithIdentifier:@"DumpFeed"];
dump.isPushed=YES;
dump.strUserId = appDelegate.strFriendid;
[navController pushViewController:dump animated:YES];
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let myVC = storyboard.instantiateViewControllerWithIdentifier("myStoryId")
self.presentViewController(myVC, animated: true, completion: nil)
我认为使用iOS7，通过Storyboard实现变得非常容易。
我目前正在学习iOS7的新功能，并发现了这个简单的解决方案，但它可能在之前的版本中也是相关的，我不确定。
首先，您需要将呈现VC与目标VC连接（这是唯一需要的连接），然后在Storyboard的属性检查器中选择样式为modal，在身份检查器中为您的VC提供storyboardID，并确保您选中了“使用storyboardID”复选框，
如果还没有，请将此方法添加到您的presentingVC中：
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
YourTargetVC * targetVC =
(YourTargetVC *)segue.destinationViewController;
if(nil != targetVC) {
//Do preparations here
}
}
[self performSegueWithIdentifier:(NSString *) sender:(id)];
[prepareForSegue: sender:]方法将被调用，允许你在目标视图控制器出现之前进行最后修改。