Question

您好我有一个分组的tableview第一部分包含电子邮件列表，第二部分只有两行手动添加电子邮件并从联系人中选择电子邮件。

ManualEmail.m中的日志保持记录0的计数，并且EmailViewController中的数组永远不会被修改，但我无法弄清楚出了什么问题

这是我目前的设置

EmailViewController.h

@property (nonatomic, retain) IBOutlet NSMutableArray *dataArray;

EmailViewController.m

@synthesize dataArray;

- (void)viewDidLoad {
    [super viewDidLoad];
    dataArray = [[NSMutableArray alloc] init];
    NSMutableArray *listItems = [[NSMutableArray alloc] initWithObjects:nil];
    [listItems addObject:[ObjectArrays productWithType:@"test" Eemail:@"test@website.com" Eselected:YES]];
    NSDictionary *firstItemsArrayDict = [NSDictionary dictionaryWithObject:listItems forKey:@"data"];
    [dataArray addObject:firstItemsArrayDict];
    NSArray *secondItemsArray = [[NSArray alloc] initWithObjects:@"Add Email Address From Contacts", @"Add Email Address Manually", nil];
    NSDictionary *secondItemsArrayDict = [NSDictionary dictionaryWithObject:secondItemsArray forKey:@"data"];
    [dataArray addObject:secondItemsArrayDict];
    [tableView reloadData];
}

ManualEmail.m

    EmailViewController *emailPVC = [[EmailViewController alloc] init];
    NSDictionary *dictionary = [emailPVC.dataArray objectAtIndex:0];
    NSArray *array = [dictionary objectForKey:@"data"];
    NSMutableArray *emailArray = [NSMutableArray arrayWithArray:array];
    [emailArray addObject:[ObjectArrays productWithType:name.text Eemail:email.text Eselected:YES]];
    [emailPVC.dataArray removeObjectAtIndex:0];
    NSDictionary *firstItemsArrayDict = [NSDictionary dictionaryWithObject:emailArray forKey:@"data"];
    [emailPVC.dataArray insertObject:firstItemsArrayDict atIndex:0];
    NSLog(@"%d", [emailPVC.dataArray count]);

Answer 1

在ManualEmail.m中，您在代码中创建了EmailViewController。但是你永远不会调用任何会调用-viewDidLoad方法的东西，所以dataArray永远不会被创建或填写。您需要致电emailPVC.view = <some view you created>;，才能调用-viewDidLoad。

在另一个类中将对象添加到NSMutableArray

1 个答案: