JSON数据显示在第一个单元格上

Question

我正在开发一个IOS App。在按钮上单击在Tableview中显示JSON数据..但是该数据仅在第一个单元格中显示，而不在其他单元格中..我可以通过NSLog检查正确的数据..但是在Tableview中显示在第一个单元格中有时应用程序崩溃和错误数据参数为零。.此行上的警告显示

`"Incompatible Pointer Assigning To 'NSDictionary'

至

NSArray "[str = [BBServerJson sendPostRequest:json toUrl:url];]`

非常感谢任何帮助或建议。 提前致谢。

    //Button Click
    BBAuthorViewController *BBAuthor =[[UIStoryboard storyboardWithName:@"Main" bundle:nil]instantiateViewControllerWithIdentifier:@"BBAuthor"];
        BBAuthor.authorDetail=_adDetailsObj.authorDetail;
        [self.navigationController pushViewController:BBAuthor animated:YES];


    //Json
     +(NSDictionary *)sendPostRequest:(NSDictionary *)params toUrl:(NSString *)urlString
{
    NSMutableString *paramString =
    [NSMutableString stringWithString:@""];
    NSArray *keys = [params allKeys];
    for (NSString *key in keys) {
        [paramString appendFormat:@"%@=%@&",key,
         [params valueForKey:key]];
    }
    NSString *postString = @"";
    if ([paramString length] > 0)
        postString = [paramString substringToIndex:
                      [paramString length]-1];
    NSMutableURLRequest *request =[NSMutableURLRequest
                                   requestWithURL:[NSURL URLWithString:urlString]];
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:[postString
                          dataUsingEncoding:NSUTF8StringEncoding]];
    NSURLResponse *res;
    NSError *error;
    NSData *resp = [NSURLConnection sendSynchronousRequest:request
                                         returningResponse:&res error:
                    &error];


    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)res;

    int statusCode;
    statusCode = [httpResponse statusCode];

    NSDictionary *jsonArray = [NSJSONSerialization JSONObjectWithData:resp options:NSJSONReadingMutableContainers error:&error];

    return jsonArray;
}    



     NSString *url = @"https://boatbrat.com/wp-app-handler-boatsales.php";
        NSMutableDictionary *json = [[NSMutableDictionary alloc]init];
        [json setObject:@"AuthorListing" forKey:@"method"];
        [json setObject:_authorDetail forKey:@"author"];
        str = [BBServerJson sendPostRequest:json toUrl:url];

     //Tableview


    - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
    {
        return 1;
    }
    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
    {
        return str.count;
    }
    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

    {
        cell=[tableView dequeueReusableCellWithIdentifier:@"cell"];
        NSArray *array = [str objectForKey:@"results"];
        NSDictionary *dic= [array objectAtIndex:indexPath.row];
        cell.textLabel.text = [dic objectForKey:@"author_name"];
        return cell;
    }

Answer 1

我认为您在numberOfRowsInSection:方法中返回错误的行数。

将return语句更改为

return [[str objectForKey:@"results"] count];