以编程方式枚举UIViewController的传出Segues [英] Programmatically enumerate outgoing Segues for a UIViewController

问题描述

对于视图控制器之间的iOS 5导航， UIViewController 类提供 [self performSegueWithIdentifier：@MySeguesender：sender] 选择器。据推测，故事板实现知道从任何视图控制器传出的segue标识符列表，即 [@MySegue，@MySegue2] 。有没有办法以编程方式访问此列表，以获取可传递给performSegueWithIdentifier的标识符？

For iOS 5 navigation between view controllers, the UIViewController Class provides [self performSegueWithIdentifier:@"MySegue" sender:sender] selector. Presumably, under the hood, the storyboard implementation knows the list of segue identifiers outgoing from any view controller, i.e. [@"MySegue", @"MySegue2"]. Is there any way to access this list programmatically, to get the identifiers that can be passed to performSegueWithIdentifier?

推荐答案

这是一个无证件行为但是

This is an undocumented behaviour but

NSArray *segueTemplates = [self valueForKey:@"storyboardSegueTemplates"] ;  

应返回一个数组，其中包含可传递给的所有可能的segue值performSegueWithIdentifier 。

should return an array that includes all possible segue values that can be passed to performSegueWithIdentifier.

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