2

我在访问我提取的 JSON 数据时遇到了一些问题。我正在使用 JSONModel 来获取我的 JSON 数据，如下所示：

在我的 LeftViewController.m 的顶部

@interface LeftViewController ()
{
    PostgresFeed* _feed;
}

然后在下面：

-(void)viewDidAppear:(BOOL)animated
{

JSONHTTPClient getJSONFromURLWithString:@"myurl" completion:^(NSDictionary *json,  JSONModelError *err) {
NSError *error = nil;

       _feed = [[PostgresFeed alloc] initWithDictionary:json error:&error];

       NSLog(@"Players: %@", feed.player);

       [self.tableView reloadData];

    }];
}

-(void)fetchedData:(NSData *)responseData
{
     NSError* error;
     NSDictionary* playerData = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];

     NSMutableDictionary* player = [playerData objectForKey:@"player"];
}

- (id)initWithCoder:(NSCoder *)aDecoder
{
    if (self = [super initWithCoder:aDecoder])
    {
        _feed.player = [NSMutableArray array];
    }
return self;
}

在我的 PostgresFeed.h

@property (nonatomic, strong) NSString *playerName;
@property (nonatomic, strong) NSString *currentScore;
@property (nonatomic, strong) NSArray *totalPenalties;
@property (nonatomic, strong) NSString *timePlayed;

我的 PostgresFeed.m 中没有任何内容

我知道当我这样做时，我会将所有我想要的数据放入我的 LeftViewController，它是 MasterDetail 的 tableView。当我查看时，NSLog(@"Players: %@", feed.player);我可以说我正在从数据库中获取我想要的所有数据。

如何访问我知道必须填充 DetailViewController 的这些数据？我应该使用 NSUserDefaults 吗？我应该创建一个新类来获取、解析和保存这些数据吗？

我对这一切都很陌生，因此非常感谢指向教程或教程之类的说明。如果需要更多代码或详细信息，请告诉我。

****编辑****

按照@soryngod 的建议应用 NSNotificationCenter 后，我NSLog(@"%@", notification.userinfo);在 RightViewController 中得到以下输出：

    2013-07-04 12:20:26.208 PlayerTracking[25777:11303] {
    player =     (
                {
            currentScore = "4";
            totalPenalties =             (
            );
            id = 9;
            name = "Jakob Melon";
            timeStarted = "2013-06-05 19:56:10";
        },
                {
            currentScore = 16;
            totalPenalties =             (
            );
            id = 10;
            name = "John China";
            timeStarted = "2013-06-06 17:21:300";
        },
                {
            currentScore = 178;
            totalPenalties =             (
            );
            id = 11;
            name = "Jason Dog";
            timeStarted = "2013-06-07 19:26:10";
        },
                {
            currentScore = 1233;
            totalPenalties =             (
            );
            id = 12;
            name = "Fox Wolfe";
            timeStarted = "2013-06-05 19:56:10";
        },
                {
            currentScore = 234;
            totalPenalties =             (
            );
            id = 13;
            name = "Dakota Cool";
            timeStarted = "2013-06-05 19:56:10";
        },
                {
            currentScore = "34234";
            totalPenalties =             (
            );
            id = 14;
            name = "Max Face";
            timeStarted = "2013-06-05 19:00:30";
        },
                {
            currentScore = "2342";
            totalPenalties =             (
            );
            id = 15;
            name = "Jonatan Blah";
            timeStarted = "2013-06-05 18:00:30";
        },
                {
            currentScore = "234234";
            totalPenalties =             (
            );
            id = 16;
            name = "Thomas Bus";
            timeStarted = "2013-06-05 19:56:10";
        },
                {
            currentScore = 34566;
            totalPenalties =             (
            );
            id = 17;
            name = "Super Cake";
            timeStarted = "2013-06-05 17:51:30";
        },
                {
            currentScore = "23463";
            totalPenalties =             (
            );
            id = 18;
            name = "Duke Nukem";
            timeStarted = "2013-06-07 19:26:10";
        },
                {
            currentScore = "12362";
            totalPenalties =             (
            );
            id = 19;
            name = "Gordon Freeman";
            timeStarted = "2013-06-05 19:56:10";
        }
    );
}

请不要介意名字。

4

1 回答 1

2

您可以使用[NSNotificationCenter defaultCenter]将userInfo发布到 DetailController ，当收到数据时，您只需将通知发布到提要并在DetailController 上处理它。

更明确地说：

您将其添加到您的 DetailViewController viewDidLoad：

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleNotification:) name:@"myNotification" object:nil];

然后你创建方法：

- (void) handleNotification:(NSNotification *) notification
{//Your information
NSLog(@"%@",notification.userInfo);
}

并从您收到这样发布的 JSON 的位置：

[[NSNotificationCenter defaultCenter] postNotificationName:@"myNotification" object:nil userInfo:yourDictionary];

让我知道这是否有帮助。

于 2013-07-04T13:37:44.547 回答