ios - 具有多行和多节的 UITableview

Question

我有 timeSlotArr，其中包含给定形式的数据。

     timeSlotArr ++++++++ (
        {
        availablenow = 0;
        callbackSlotId = "96a8a387-a2a1-e611-8101-000c29821561";
        callbackSlotName = "07:00 AM";
        date = "2016-12-21";
        dateInUtc = "2016-12-21T01:30:00Z";
        day = Wednesday;
    },
        {
        availablenow = 0;
        callbackSlotId = "9aa8a387-a2a1-e611-8101-000c29821561";
        callbackSlotName = "09:00 AM";
        date = "2016-12-21";
        dateInUtc = "2016-12-21T03:30:00Z";
        day = Wednesday;
    },
        {
        availablenow = 0;
        callbackSlotId = "9ca8a387-a2a1-e611-8101-000c29821561";
        callbackSlotName = "10:00 AM";
        date = "2016-12-21";
        dateInUtc = "2016-12-21T04:30:00Z";
        day = Wednesday;
    }
)

我想在 UITableView 中的多个部分和多个行中显示我的数据。

没有section是根据“day”键决定的(sections是数组)，elementsInSection是sections里面的数据

for (NSDictionary *dict in timeSlotArr) {
    NSString *day = [dict objectForKey:@"day"];
    if (![sections containsObject:day]) {
        [sections addObject:day];

        NSMutableArray *arr = [[NSMutableArray alloc] init];
        [arr addObject:dict];

        [elementsInSection addObject:arr];
    } else {
        NSMutableArray *arr = [elementsInSection objectAtIndex:[sections indexOfObject:day]];
        [arr addObject:dict];

        [elementsInSection setObject:arr atIndexedSubscript:[sections indexOfObject:day]];
    }
}

NSLog(@"elementsInSection ++++++++ %@",elementsInSection);
elementsInSection Returns 1 instead of 3 here is wrong... 3 means data of `timeSlotArr` with key `day`

NSLog(@"sections ++++++++ %@",sections); //Returns 1 which is right

Answer 1

根据我的经验，您可以通过如下所示过滤数据来在表格 View 中实现上述部分和行结构:

第 1 步:您需要的部分是Day。所以我们将从您的数组中获取所有独特的日子。

NSArray *uniqueDays = [arrayData valueForKeyPath:@"@distinctUnionOfObjects.day"];

唯一天数结果:

(
    Wednesday,
    Monday,
    Tuesday
)

第 2 步:现在我们需要只包含当天数据的 day wise 数组:

NSMutableDictionary *dictData1 = [NSMutableDictionary dictionary];

for (NSString *strDay in uniqueDays) {
     NSArray *filteredDay = [arrayData filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"(day == %@)", strDay]];
     [dictData1 setObject:filteredDay forKey:strDay];
}

过滤后的数据结果:

{
    Monday =     (
                {
            availablenow = 0;
            callbackSlotId = "9ca8a387-a2a1-e611-8101-000c29821561";
            callbackSlotName = "10:00 AM";
            date = "2016-12-21";
            dateInUtc = "2016-12-21T04:30:00Z";
            day = Monday;
        },
                {
            availablenow = 0;
            callbackSlotId = "9ca8a387-a2a1-e611-8101-000c29821561";
            callbackSlotName = "10:00 AM";
            date = "2016-12-21";
            dateInUtc = "2016-12-21T04:30:00Z";
            day = Monday;
        }
    );
    Tuesday =     (
                {
            availablenow = 0;
            callbackSlotId = "9ca8a387-a2a1-e611-8101-000c29821561";
            callbackSlotName = "10:00 AM";
            date = "2016-12-21";
            dateInUtc = "2016-12-21T04:30:00Z";
            day = Tuesday;
        }
    );
    Wednesday =     (
                {
            availablenow = 0;
            callbackSlotId = "96a8a387-a2a1-e611-8101-000c29821561";
            callbackSlotName = "07:00 AM";
            date = "2016-12-21";
            dateInUtc = "2016-12-21T01:30:00Z";
            day = Wednesday;
        },
                {
            availablenow = 0;
            callbackSlotId = "9aa8a387-a2a1-e611-8101-000c29821561";
            callbackSlotName = "09:00 AM";
            date = "2016-12-21";
            dateInUtc = "2016-12-21T03:30:00Z";
            day = Wednesday;
        },
                {
            availablenow = 0;
            callbackSlotId = "9ca8a387-a2a1-e611-8101-000c29821561";
            callbackSlotName = "10:00 AM";
            date = "2016-12-21";
            dateInUtc = "2016-12-21T04:30:00Z";
            day = Wednesday;
        }
    );
}

现在您可以使用 Unique Days 作为 section array。

和dictData字典作为行数组并根据部分获取数据。

编辑: 现在在 TableView 方法中使用上面的过滤器数组

#pragma mark --- UITableView DataSource methods

//Section
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    return uniqueDays.count;
}

//Row
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return [[dictData1 objectForKey:uniqueDays[section]] count];
}

//Cell
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    UITableViewCell *aCell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];

    NSArray *arrDayData = [dictData1 objectForKey:uniqueDays [indexPath.section]];
    NSDictionary *dictDetail = arrDayData[indexPath.row];

    aCell.textLabel.text = dictDetail[@"callbackSlotId"];

    return aCell;
}

如果您还需要其他任何东西，请告诉我。