ios-chat/wfuikit/WFChatUIKit/Vendor/LBXScan/LBXAlertAction/Class/UIWindow+LBXHierarchy.h

//
//  UIWindow+Hierarchy.h
// https://github.com/hackiftekhar/IQKeyboardManager
// Copyright (c) 2013-16 Iftekhar Qurashi.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#import <UIKit/UIWindow.h>

@class UIViewController;

/**
 UIWindow hierarchy category.
 代码从IQKeyboardManager复制
 category名称修改，以防用到IQKeyboardManager的冲突
 */
@interface UIWindow (LBXHierarchy)

///----------------------
/// @name viewControllers
///----------------------

/**
 Returns the current Top Most ViewController in hierarchy.
 */
@property (nullable, nonatomic, readonly, strong) UIViewController *topMostController;

/**
 Returns the topViewController in stack of topMostController.
 */
@property (nullable, nonatomic, readonly, strong) UIViewController *currentViewController;


@end