它看起来像什么？

     

如何使用？

    UITabBarController
    #import "CHXTabBarControllerTransitioning.h"

    ...

    // self.carrier = [[CHXTabBarTransitioningAnimatorCarrier alloc] initWithTabBarController:self];
    self.carrier = [[CHXTabBarTransitioningAnimatorCarrier alloc] initWithTabBarController:self transitioningAnimatorStyle:CHXTabBarTransitioningAnimatorStyleCover];
    // self.carrier.enablePanGestureRecognizer = NO;
    self.delegate = self.carrier;