iphone - UITableViewCell 中的 NSCF 类型值

Question

我试图在 UITableViewCell 的 cellAtRowIndexPath - 方法中设置数组值，但它给出了异常

[NSCFType objectAtIndex:]: unrecognized selector sent to instance 0x445e980'
2011-05-26 13:34:12.812 addressBook[2603:20b] Stack: (
    9180251,

“people”数组中的值的类型为“NSCF”。我想，它必须转换为 NSString。如何在 tableviewcell 中显示“people”数组的值？这是我的代码:

- (void)viewDidLoad {
    [super viewDidLoad];
    ABAddressBookRef addressBook = ABAddressBookCreate();
    people = (NSArray *)ABAddressBookCopyArrayOfAllPeople(addressBook);
    NSLog(@"people....%@",people );
    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

    // Set up the cell...
    cell.text = [people objectAtIndex:indexPath.row];
    return cell;
}

Answer 1

people 数组是 ABPerson 对象的数组，而不是字符串。所以你不能将它分配为字符串。在将记录分配给单元格的 textLabel 之前，您必须处理记录并获取名称。

ABRecordRef person = (ABRecordRef)[contacts objectAtIndex:0];
CFStringRef nameString = ABRecordCopyCompositeName(person);
cell.textLabel.text = (NSString*)nameString;
CFRelease(nameString);