iOS 登录跳转视图方法

[[UIApplication sharedApplication].keyWindow.rootViewController dismissViewControllerAnimated:NO completion:^{
IWCompanyCenterController *company = [IWCompanyCenterController new]; IWNavigationController *homeVC = [[IWNavigationController alloc]initWithRootViewController:company];
[UIApplication sharedApplication].keyWindow.rootViewController=homeVC;
}];