objective-c - 无法使用 ABNewPersonViewController 在通讯录中显示

Question

我对 Objective C 很陌生，我正在使用 XCode 4.2，在应用程序的一部分中，我需要将数据保存在地址簿中。但我需要将其显示在地址簿中，而不仅仅是将其保存在单击按钮上

我正在尝试使用以下代码:

我添加了 addressBook 框架和 addressBookUI 框架 在我的 .h 文件中我写了

#import <UIKit/UIKit.h>
#import <AddressBook/AddressBook.h>
#import <AddressBookUI/AddressBookUI.h>


    @interface HelloWorld20ViewController : UIViewController<ABNewPersonViewControllerDelegate,ABPersonViewControllerDelegate>{

}
-(IBAction)go;

@end

在我写的 .m 文件中

-(IBAction)go{
    ABRecordRef newPerson= ABPersonCreate();
    CFErrorRef error = NULL;
    ABRecordSetValue(newPerson, kABPersonFirstNameProperty, CFSTR("john"), &error);
    ABRecordSetValue(newPerson, kABPersonLastNameProperty, CFSTR("Smith"), &error);
    NSAssert(!error, @"something bad happend here.");


    ABNewPersonViewController* newPersonViewController = [[ABNewPersonViewController alloc] initWithNibName:nil bundle:nil];
    [newPersonViewController setDisplayedPerson:newPerson];
    [newPersonViewController setNewPersonViewDelegate:self];

    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:newPersonViewController];

    [self presentModalViewController:navController animated:YES];

    CFRelease(newPerson);

}

-(void)newPersonViewController:(ABNewPersonViewController *)newPersonView didCompleteWithNewPerson:(ABRecordRef)person{
    [self.navigationController popViewControllerAnimated:YES];
}

当我点击“开始”按钮时，我看到黑屏:这就是我所得到的

这样做有什么原因吗？

非常感谢!

已编辑

当前代码:

-(IBAction)go{
    ABRecordRef newPerson= ABPersonCreate();
    CFErrorRef error = NULL;
    ABRecordSetValue(newPerson, kABPersonFirstNameProperty, CFSTR("john"), &error);
    ABRecordSetValue(newPerson, kABPersonLastNameProperty, CFSTR("Smith"), &error);
    NSAssert(!error, @"something bad happend here.");


    ABNewPersonViewController* newPersonViewController = [[ABNewPersonViewController alloc] initWithNibName:nil bundle:nil];
    [newPersonViewController setDisplayedPerson:newPerson];
    [newPersonViewController setNewPersonViewDelegate:self];


    [self presentModalViewController:newPersonViewController animated:YES];

    CFRelease(newPerson);

}

还是同样的问题

Answer 1

好吧，你的问题是这一行:

ABNewPersonViewController* newPersonViewController = [[ABNewPersonViewController alloc] initWithNibName:nil bundle:nil];

如果将该行替换为:

ABNewPersonViewController* newPersonViewController = [[ABNewPersonViewController alloc] init];

您的代码运行良好。