How to call a UIViewController from a UIView SubClass?

I have main UIViewController in which I have an UITableView. In the cell of UItableView I had already add an UICollectionView. in - - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath I am calling an method of main UIViewController. UIViewController *view = [[UIViewController alloc] init]; [view my_method]; in main view. -(void)my_method { AnotherName *view_my=[[AnotherName alloc]initWithNibName:@"AnotherName" bundle:nil]; [self.navigationController pushViewController:view_my animated:NO]; } Viewdidload method is calling but view is not showing.