[__NSCFString countByEnumeratingWithState：objects：count：]：无法识别的选择器发送到实例0x16e09f70＆＃39;

Question

获取错误由于未捕获的异常终止应用程序＆＃39; NSInvalidArgumentException＆＃39;，原因：＆＃39; - [__ NSCFString countByEnumeratingWithState：objects：count：]：无法识别的选择器发送到实例0x16e09f70＆＃39;

if (finalArray.count != 0)
    {
        NSMutableDictionary *fetchDict = [[NSMutableDictionary alloc]initWithDictionary:[finalArray objectAtIndex:indexPath.row]];
        NSMutableArray *valueArr = [[NSMutableArray alloc]initWithArray:[fetchDict allValues].mutableCopy];


        for (NSMutableArray *one in valueArr) {
            for (NSMutableArray *two in one) // Program Stops on This Line
            {
                cell.textLabel.text = [NSString stringWithFormat:@"%@",[two valueForKey:@"Note"]];
            }
        }

    }
}

Answer 1

试试这个

if (finalArray.count != 0)
{
    NSMutableDictionary *fetchDict = [[NSMutableDictionary alloc]initWithDictionary:[finalArray objectAtIndex:indexPath.row]];
    NSMutableArray *valueArr = [[NSMutableArray alloc]initWithArray:[fetchDict allValues].mutableCopy];


    for (NSMutableArray *one in valueArr) {
        if ([one isKindOfClass:[NSMutableArray class]]) { //Check if array here
            for (NSMutableArray *two in one) 
            {
                cell.textLabel.text = [NSString stringWithFormat:@"%@",[two valueForKey:@"Note"]];
            }
        }else {
            NSLog(@"Program stops because this one: %@", one);
        }
    }

}

Answer 2

试试这个

if (finalArray.count != 0)
    {
        NSDictinory *fetchDict = [finalArray objectAtIndex:indexPath.row];

  cell.textLabel.text = [NSString stringWithFormat:@"%@",[fetchDict valueForKey:@"Note"]];

    }
}

希望这会有所帮助。