从view中直接进行控制器的切换

在.h中声明
- (UIViewController *)viewController

在view的.m中实现
- (UIViewController )viewController {
for (UIView next = [self superview]; next; next = next.superview) {
UIResponder *nextResponder = [next nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]]) {
return (UIViewController *)nextResponder;
}
}
return nil;
}


跳转as：
JFChatListViewController *chatListVC = [[JFChatListViewController alloc]init];
[chatListVC setHidesBottomBarWhenPushed:YES];
[[self viewController].navigationController pushViewController:chatListVC animated:YES];