text: //
  //  ADAlertView.h
  //  ADAlertController
  //
  //  Created by Alan on 2020/2/2.
  //  Copyright © 2020 Alan. All rights reserved.
  //
  
  #import <UIKit/UIKit.h>
  #import "ADAlertControllerViewProtocol.h"
  
  NS_ASSUME_NONNULL_BEGIN
  
  @interface ADAlertView : UIView<ADAlertControllerViewProtocol>
  
  /**
   用于手势拖动 alertview 时,改变约束,实现动画
   */
  @property (nonatomic, readonly) NSLayoutConstraint *backgroundViewVerticalCenteringConstraint;
  
  
  @end
  
  NS_ASSUME_NONNULL_END
  