Question

我正在尝试将数据从服务器存储到NSMutable数组，以在表格视图中将它们显示为新闻源，如此image所示。基本上像推特新闻源。我想做的是从NSMutable数组中的服务器获取数据，并使用该数组在我的表视图中显示。我不知道这是否是正确的方法。我尝试静态添加它可以工作，但我真的不知道如何动态，因为我是Objective C的新手。抱歉，如果这个问题看起来真的很愚蠢。提前谢谢！

Answer 1

使用JSON解析数据：

dispatch_queue_t jsonParsingQueue = dispatch_queue_create("jsonParsingQueue", NULL);

// execute a task on that queue asynchronously
dispatch_async(jsonParsingQueue, ^{
    NSString *urlStr = @"YourURL";
    NSURL *url = [NSURL URLWithString:[urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc]initWithURL: url];
    [request setHTTPMethod: @"GET"];
    NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
    NSString *responseStr = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];
    NSData * jsonData = [responseStr dataUsingEncoding:NSUTF8StringEncoding];

    NSMutableArray *tempResults = [NSMutableArray alloc];
    NSError *jsonParsingError = nil;
    NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&jsonParsingError];
    tempResults = jsonObject[@"posts"]; //Add the json key you would like to get

    self.arrayToDisplay = [tempResults copy]; //copy them to your NSMutableArray


    // some code on a main thread (delegates, notifications, UI updates...)
    dispatch_async(dispatch_get_main_queue(), ^{

        [self.myTableView reloadData];


    });
});

如何从服务器在NSmutablearray中存储数据

1 个答案: