BBAThreeDirectionPopGestureManager.h
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//
// BBAPopGestureManager.h
// BBAPods
//
// Created by liuchengqing01 on 2017/7/19.
// Copyright © 2017年 Baidu. All rights reserved.
//
#import <UIKit/UIKit.h>
/////////////////////////////////////////////////////////////////////////////////
// Added by zhangjian
/**
* BBANavigationControllerDelegate代理方法传出去的参数
* BBANavigationSwipeDirectionHorizontal 横向滑动
* BBANavigationSwipeDirectionVertical 纵向滑动
*/
typedef enum : NSUInteger {
BBANavigationSwipeDirectionHorizontal = 1,
BBANavigationSwipeDirectionVertical = 2,
} BBANavigationSwipeDirection;
/**
* controller支持的滑动样式 三种，不支持，上滑，下滑
*/
typedef enum : NSUInteger {
BBANavigationDontSupportSwipeBack = 0,
BBANavigationOnlySupportRightSwipeBack = 1,
BBANavigationSupportThreeDirectionsSwipeBack = 2,
} BBANavigationSupportSwipeDirection;
@interface UIViewController (BBANavigationControllerSwipeBack)
/**
* 是否应该跳过本地ViewAppear和ViewDidAppear调用
* 改变量用于跳过viewcontroller中多出来的一次 ViewWillAppear和ViewDidAppear调用
*/
@property(nonatomic, assign) BOOL bba_shouldSkipViewAppear;
/**
* viewcontroller是否需要在view will appear和view will disappear的时候刷新视图，如果需要怎需要实现下面的方法，保证滑动的时候视图是对的，同时也保证 view will appear等方法操作是合理的。
注意：需要在自己的controller中viewWillAppear处，添加动画控制的变量,防止多次执行，viewWillAppear等.
给controller设置两个变量，在viewWillAppear的时候：
if(duringAppearAnimation){
return;
duringAppearAnimation = YES;
}
在viewWillDisappear的时候:
if(duringDisappearAnimation){
return;
duringDisappearAnimation = YES;
}
最后在viewDidAppear和ViewDidDisappear的时候将 duringDisappearAnimation 和 duringAppearAnimation 置成yes
*/
// 废弃
//-(BOOL)bba_navigationControllerSupportViewChangeWhenAppearAndDisappear;
// 默认开启viewcontroller同步, 兼容旧逻辑, 提供delay接口
/**
兼容旧逻辑, 提供delay接口
默认开启viewcontroller生命周期同步, 即与系统调用appear/disappear的时机一致
return YES: delay viewcontroller生命周期调用, 即手势期间不触发生命周期, 手势结束后实际开始pop操作时再触发生命周期
*/
-(BOOL)bba_navigationControllerDirectionPopShouldDelayAppearAndDisappear;
/**
* 滑动的样式
*/
-(BBANavigationSupportSwipeDirection)bba_navigationControllerSupportSwipeDirection;
/**
* 设置滑动渐变背景色
*/
-(nullable UIColor *)bba_navigationControllerMaskViewColor;
/**
* 设置滑动渐变背景色横向滑动最大alpha
*/
-(nullable NSNumber *)bba_navigationControllerMaskViewHorizontalMaxAlpha;
/**
* 设置滑动渐变背景色纵向滑动最大alpha
*/
-(nullable NSNumber *)bba_navigationControllerMaskViewVerticalMaxAlpha;
/**
* 用户开始滑动退出
*/
- (void)bba_navigationWillPopViewController:(BBANavigationSwipeDirection)direction;
/**
* 滑动退出即将成功执行
*/
- (void)bba_navigationWillFinishPopViewController:(BBANavigationSwipeDirection)direction;
/**
* 滑动退出将要取消
*/
- (void)bba_navigationWillCancelPopViewController:(BBANavigationSwipeDirection)direction;
/**
* 滑动退出已经取消
*/
- (void)bba_navigationDidCancelPopViewController:(BBANavigationSwipeDirection)direction;
/**
* 完成popViewController
*/
- (void)bba_navigationDidFinishPopViewController;
@end
/////////////////////////////////////////////////////////////////////////////////
@interface BBAThreeDirectionPopGestureManager : NSObject
//兼容适配BBANavigationController
@property (nullable, nonatomic,strong) UIPanGestureRecognizer * recognizer;
//是否正在响应手势
@property (nonatomic, assign, readonly) BOOL isMoving;
- (nullable instancetype)initWithNavigationController:(nonnull UINavigationController *)navigation;
//用于手势期间获取栈内元素
- (nullable UIViewController *)bbaAnimationTopViewController;
- (nullable UIViewController *)bbaTopViewController;
- (nullable NSArray<__kindof UIViewController *> *)bbaViewControllers;
@end