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| //
| // Copyright © 2018 jm. All rights reserved.
| //
|
| #import <UIKit/UIKit.h>
|
| @interface UINavigationController (dh)
|
| @property(nullable, nonatomic,readonly,strong) UIViewController *dh_topViewController;
|
| + (nullable UIViewController *)topViewController;
| @end
|
|
