是否可以确定ViewController是否呈现为Modal？ [英] Is it possible to determine whether ViewController is presented as Modal?

问题描述

解决方案

因为 modalViewController 在iOS 6中已被弃用，这里有一个适用于iOS 5+的版本，并且没有警告编译。

Objective-C ：

   - （BOOL）isModal {
 return self.presentingViewController.presentedViewController == self 
 || （self.navigationController！= nil&& self.navigationController.presentingViewController.presentedViewController == self.navigationController）
 || [self.tabBarController.presentingViewController isKindOfClass：[UITabBarController class]]; 
} 
  

Swift：

  var isModal：Bool {
 return self.presentingViewController？.presentedViewController == self 
 || （self.navigationController！= nil&& self.navigationController？.presentingViewController？.presentedViewController == self.navigationController）
 || self.tabBarController？.presentingViewController是UITabBarController 
} 
  

p>

Is it possible to check inside ViewController class that it is presented as modal view controller?

解决方案

Since modalViewController has been deprecated in iOS 6, here's a version that works for iOS 5+ and that compiles without warnings.

Objective-C:

- (BOOL)isModal {
    return self.presentingViewController.presentedViewController == self
      || (self.navigationController != nil && self.navigationController.presentingViewController.presentedViewController == self.navigationController)
      || [self.tabBarController.presentingViewController isKindOfClass:[UITabBarController class]];
}

Swift:

var isModal: Bool {
    return self.presentingViewController?.presentedViewController == self
        || (self.navigationController != nil && self.navigationController?.presentingViewController?.presentedViewController == self.navigationController)
        || self.tabBarController?.presentingViewController is UITabBarController
}

Hat tip to Felipe's answer.

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