首先要有navigationcontroller,在navigationcontroller的viewdidload方法里添加下面的代码
NSObject *targetObjc = [[self.interactivePopGestureRecognizer valueForKey:@"_targets"] firstObject];
NSObject *target = [targetObjc valueForKey:@"target"];
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:target action:@selector(handleNavigationTransition:)];
[self.view addGestureRecognizer:pan];
思路是利用runtime打印出UIGestureRecognizer的属性,找到target存放的位置,继而找到self.interactivePopGestureRecognizer响应方法,重新创建一个平移手势加入到view上,利用响应者链实现我们的右滑pop效果