[移动开发]IOS全屏滑动返回

IOS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 UIKit

class CustomNavigationController: UINavigationController {
   override func viewDidLoad() {
        super.viewDidLoad()

        guard let systemGes = interactivePopGestureRecognizer else { return }
        guard let gesView = systemGes.view else { return }
      /*  var count: UInt32 = 0
        let 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 = true
        super.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