IOS15全屏滑动返回

全程的用的思想是 Runtime 和 KVC 即 Runtime+KVC
oc的关键性写法:
oc 要加入头文件
#import<objc/runtime.h>
来获取运行循环需要打印的类。都是在父类都是NavigationViewController里面书写代码的

#import "CustomNavigationViewController.h"
#import<objc/runtime.h>
@interface CustomNavigationViewController ()<UIGestureRecognizerDelegate>
@end
@implementation CustomNavigationViewController
- (void)viewDidLoad {[super viewDidLoad];UIGestureRecognizer *gesture =  self.interactivePopGestureRecognizer;UIView *gestureView = gesture.view;gesture.enabled = NO; //禁用系统的侧边滑动unsigned int count = 0;Ivar *var = class_copyIvarList([UIGestureRecognizer class], &count);for(int i = 0;i<count;i++){Ivar _var = *(var+i);//NSLog(@"%s",ivar_getTypeEncoding(_var));//NSLog(@"%s",ivar_getName(_var));}NSMutableArray *_targets = [gesture valueForKey:@"_targets"];NSLog(@"%@",_targets);NSLog(@"%@",_targets[0]);id gestureRecognizerTarget = [_targets firstObject];id navigationInteractiveTransition= [gestureRecognizerTarget valueForKey:@"target"];SEL handleTransition = NSSelectorFromString(@"handleNavigationTransition:");UIPanGestureRecognizer *popRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:navigationInteractiveTransition action:handleTransition];[gestureView addGestureRecognizer:popRecognizer];}
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{viewController.hidesBottomBarWhenPushed = YES;[super pushViewController:viewController animated:animated];
}
@end

swift写法:

import UIKitclass CustomNavigationController: UINavigationController {override func viewDidLoad() {super.viewDidLoad()guard let systemGes = interactivePopGestureRecognizer else { return }guard let gesView = systemGes.view else { return }/*  var count: UInt32 = 0let ivars = class_copyIvarList(UIGestureRecognizer.self, &count)!for i in 0..<count {let ivar = ivars[Int(i)]let name = ivar_getName(ivar)debugPrint(String(cString: name!))}*/let targets = systemGes.value(forKey: "_targets") as? [NSObject]guard  let targetObjc = targets?.first else { return }debugPrint(targetObjc)debugPrint(targets)guard let target = targetObjc.value(forKey: "target") else { return }
//        guard let action = targetObjc.value(forKey: "action") as? Selector  else { return }let action = Selector(("handleNavigationTransition:"))//4创建自己的手势let panGes = UIPanGestureRecognizer()gesView.addGestureRecognizer(panGes)panGes.addTarget(target, action: action)}override func pushViewController(_ viewController: UIViewController, animated: Bool) {viewController.hidesBottomBarWhenPushed = truesuper.pushViewController(viewController, animated: animated)}
}

当然也有其他写法，或者借助框架等。
https://gitee.com/johnson__save_admin/iosslide-back-swift

https://gitee.com/johnson__save_admin/iosslide-back-oc

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IOS15全屏滑动返回

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