AppDelegate *delegate = [[UIApplication sharedApplication]delegate];
NSArray *views = delegate.tabController.viewControllers;
for(id vv in views)
{
UINavigationController *cc = (UINavigationController *)vv;
NSString *S = cc.title;
if([S isEqualToString:@"下载管理"])
{
}
}
这个方法是通过tabbar的标题来进行识别,可以得到对应的navigationcontroller,另外views里面的东西是当前tabbar