Domanda

I am writing an application that is based on UIViewController. It does not have a navigation bar. My application works with AddressBook. For now I use two things.

The first (select a people):

{
    ABPeoplePickerNavigationController *picker = [[ABPeoplePickerNavigationController alloc] init];
    picker.peoplePickerDelegate = self;
    [self presentModalViewController:picker animated:YES];
}

and the second (select a phone):

{
    ABPersonViewController *picker = [[[ABPersonViewController alloc] init] autorelease];
    picker.personViewDelegate = self;
    picker.displayedPerson = person;
    picker.displayedProperties = [NSArray arrayWithObjects: [NSNumber numberWithInt:kABPersonPhoneProperty], nil];
    [self presentModalViewController:picker animated:YES];
}

They are called in different functions.

In the first case when picker is displayed, it has a navigation bar with some buttons: Cancel etc.

In the second case another picker does not have a navigation bar. So, if I select the phone then it works but if I want to return without making a choice - I do not have a button "Back" or "Cancel".

How can I add the navigation bar in the second case?

I have tried to add another navigation controller and a viewcontroller as described below

How to correctly use ABPersonViewController with ABPeoplePickerNavigationController to view Contact information?

this display the navigatiob bar but my application crashes after this.

and

È stato utile?

Soluzione

ABPeoplePickerNavigationController, as the name suggests, is a navigation controller, so it has a navigation bar. ABPersonViewController is just a view controller, so it doesn't have a navigation bar of its own. You can put the instance of ABPersonViewController into a navigation controller yourself and present that, then it will have a navigation bar and you can add any buttons you need.

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