iOS Push模拟Pop模态底部弹出动画

- (void)whenPush{

    WTVViewController * loginView = [[WTVViewController alloc]init];
    CATransition* transition = [CATransition animation];
    transition.duration =0.4f;
    transition.type = kCATransitionMoveIn;
    transition.subtype = kCATransitionFromTop;
    [self.navigationController.view.layer addAnimation:transition forKey:kCATransition];
    [self.navigationController pushViewController:loginView animated:NO];
    // * 此处animated设置为NO
    
}

- (void)whenPop{

    CATransition* transition = [CATransition animation];
    transition.duration =0.4f;
    transition.type = kCATransitionReveal;
    transition.subtype = kCATransitionFromBottom;
    [self.navigationController.view.layer addAnimation:transition forKey:kCATransition];
    [self.navigationController popViewControllerAnimated:NO];
    //* 此处animated设置为NO
    
}