How to push UIViewController into UINavigationController from seperate UIView of different UIViewController which uses this view.

Question

I have a UIViewController(AbcViewController) with NavigationController.AbcViewController uses UIView(AbcView) as its view. AbcView has a UITableView. I have set This TableView's datasource in AbcViewController and delegate in its SuperView i.e. AbcView. How will I push another UIViewController(XyzViewcontroller) into navigationController when I select a row in this table because it gives "error: request for member 'navigationController' in something not a structure or union" when I do this : [self.navigationController pushViewController:xyzViewcontroller animated:TRUE];

I also did this : AbcViewController *parentVC; [parentVC.navigationController pushViewController:xyzViewcontroller animated:TRUE]; Though it builds successfully but XyzViewcontroller's view does not appear. It does not push XyzViewcontroller's view into navigationController.

Thanks For Any Help.

Answer 1

We can make a delegate on AbcView so that we can refer back to the view's viewController which in this case is AbcViewController. We can set delegate as:

@interface AbcView : UIView

{

id delegate;

}

@property(nonatomic, assign) id delegate;

Then in AbcViewController, set the view's delegate like this:

[abcView setDelegate:self];

Now in table method using our delegate from within AbcView as:

• (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [delegate pushOtherView];

}

it will call - (void)pushOtherView method in AbcViewController whose definition is :

• (void)pushOtherView {
  XyzViewcontroller * xyzViewcontroller = [[[XyzViewcontroller alloc] init] autorelease]; [self.navigationController pushViewController:xyzViewcontroller animated:YES];
  }

But before using this method ,it should be mentioned in protocols otherwise it will show Warniing: -pushOtherView' not found in protocol(s).