iOS 收到推送从AppDelegate push 到详细页面

UITabBarController *tbc = (UITabBarController *)_window.rootViewController;
UINavigationController *nav = tbc.viewControllers[tbc.selectedIndex];
NewDetailView *dVc = [[NewDetailView alloc] init];
dVc.newsID = _opid;
dVc.hidesBottomBarWhenPushed = YES;
[nav pushViewController:dVc animated:YES];