如何推UIViewController

Question

我在Viewbased應用程序中有UIViewController。 我想推出另一個UIViewcontroller。

-(IBAction) Myfunction 
{ 

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

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

} 

Answer 1

由於warrenm已經告訴你了，首先檢查您的viewController有一個navigationController通過調用類似：的NSLog（@ 「％@」，self.navigationController），那麼你可以把使用：

[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];