ios - 我的功能有什么问题

Question

我正在从服务中获取数据，并像这样成功解析

-(NSMutableArray *)clubTypes
{
    NSMutableArray *dataArray = [[NSMutableArray alloc] init];
    NSString *url = [NSString stringWithFormat:@"%@category",KWSURLList];
    NSLog(@"%@",url);
    NSDictionary * returnDict = (NSDictionary *) [self callWebService:url];
    if([returnDict objectForKey:@"result"])
    {
        //        NSDictionary * returnDictResult = (NSDictionary *) [returnDict objectForKey:@"result"];
        NSArray *returnedArray = [returnDict objectForKey:@"data"];

        for(NSDictionary *clubDict in returnedArray)
        {
            ClubTypeDC *clubDC = [[ClubTypeDC alloc] init];
            clubDC.clubTypeID = [[clubDict objectForKey:@"Id"] intValue];
            clubDC.clubTypeTitle = [clubDict objectForKey:@"tittle"];
            clubDC.clubTypeImage = [clubDict objectForKey:@"icons"];
            [dataArray addObject:clubDC];
            //            NSLog(@"%@",proEvents.proEventImage);
        }

    }

}

但我总是在 numberOfRowsInSection 中收到错误访问错误。谁能告诉我为什么？

Answer 1

记住总是这样返回你的数组

返回数据数组；

我修改了你的代码，请检查

 -(NSMutableArray *)clubTypes
    {
        NSMutableArray *dataArray = [[NSMutableArray alloc] init];
        NSString *url = [NSString stringWithFormat:@"%@category",KWSURLList];
        NSLog(@"%@",url);
        NSDictionary * returnDict = (NSDictionary *) [self callWebService:url];
        if([returnDict objectForKey:@"result"])
        {
            //        NSDictionary * returnDictResult = (NSDictionary *) [returnDict objectForKey:@"result"];
            NSArray *returnedArray = [returnDict objectForKey:@"data"];

            for(NSDictionary *clubDict in returnedArray)
            {
                ClubTypeDC *clubDC = [[ClubTypeDC alloc] init];
                clubDC.clubTypeID = [[clubDict objectForKey:@"Id"] intValue];
                clubDC.clubTypeTitle = [clubDict objectForKey:@"tittle"];
                clubDC.clubTypeImage = [clubDict objectForKey:@"icons"];
                [dataArray addObject:clubDC];
                //            NSLog(@"%@",proEvents.proEventImage);
            }

        }
    return dataArray;
    }