ABPersonViewController并隐藏取消按钮

Question

默认情况下，ABPersonViewController在右侧按钮栏位置显示“取消”按钮。如何隐藏/清除该项目？强制性代码示例如下：

ABPersonViewController *picker = [[[ABPersonViewController alloc] init] autorelease];
picker.personViewDelegate = self;
picker.displayedPerson = aPerson;
picker.allowsEditing = NO;

感谢。

Answer 1

解决了！子类ABPersonViewController，覆盖-(void) viewDidLoad，调用超级，然后将rightBarButtonItem设置为nil。塔达！

@interface PersonViewController : ABPersonViewController
@end

@implementation PersonViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.navigationItem.rightBarButtonItem = nil;
}

@end

Answer 2

更简单：

ABPersonViewController *picker = [[[ABPersonViewController alloc] init] autorelease];
picker.personViewDelegate = self;
picker.displayedPerson = aPerson;
picker.allowsEditing = NO;
[self.navigationController pushViewController:picker animated:YES];
picker.navigationItem.rightBarButtonItem = nil; // remove "Cancel" button
[picker release];

（在pushViewController之后简单地添加了rightBarButtonItem = nil。）