How to push UIViewController

Question

I have UIViewController in Viewbased application. I want to push another UIViewcontroller from it.

-(IBAction) Myfunction
{

 MedicineSearchSystem *medicineSearchSystem = [[MedicineSearchSystem alloc]        initWithNibName:@"MedicineSearchSystem" bundle:nil];

 [self.parentViewController:medicineSearchSystem animated:YES]; // Crash here

}

In order to push a new view controller onto the stack, your existing view must have a UINavigationController as its parent. It appears that your code may have gotten mangled when you posted it, but the relevant method is pushViewController:animated: — warrenm
– warrenm, Commented Jul 22, 2010 at 5:54

vodkhang · Accepted Answer · 2010-07-22 08:01:09Z

1

As warrenm already told you, first check if your viewController has a navigationController by calling something like : NSLog(@"%@", self.navigationController) then you can push using:

[self.navigationController pushViewController:medicineSearchSystem animated:YES];

    self.mainItemListViewController = [[[NCItemsViewController alloc] init] autorelease];

self.navigationController = [[UINavigationController alloc] initWithRootViewController:self.mainItemListViewController];

[window addSubview:[self.navigationController view]];
[window makeKeyAndVisible];

edited Jul 22, 2010 at 8:01

answered Jul 22, 2010 at 6:03

vodkhang

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6 Comments

Dhaval Over a year ago

I have no navigationcontroller. Can I open 2nd viewcontroller from 1st viewcontroller.

vodkhang Over a year ago

you can do : [self presentModalViewController:animated:]

Dhaval Over a year ago

I have tried with presentModalViewController. But it does not work.

vodkhang Over a year ago

Is your class a UIViewController? It should work, it always works for me

Dhaval Over a year ago

I have UIViewController in Viewbased application. I want to push another UIViewcontroller from it.

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