UITableview with multiple rows and sections - ios

Question

I have timeSlotArr which contains data in the form of given.
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;
}
)
I want to display my data in UITableView multiple sections and multiple rows inside it.
no of sections are decided based on "day" key(sections is array) and elementsInSection are the data inside sections
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

As per my experience you can achieve above sections and row structure in your table view by filtering your data like below:
Step 1: What you need in sections is Day.
so we will get all unique days from your array.
NSArray *uniqueDays = [arrayData valueForKeyPath:#"#distinctUnionOfObjects.day"];
Unique Days Result :
(
Wednesday,
Monday,
Tuesday
)
Step 2: Now we need day wise array contains only that day data array:
NSMutableDictionary *dictData1 = [NSMutableDictionary dictionary];
for (NSString *strDay in uniqueDays) {
NSArray *filteredDay = [arrayData filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:#"(day == %#)", strDay]];
[dictData1 setObject:filteredDay forKey:strDay];
}
Filtered Data Result :
{
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;
}
);
}
Now you can use Unique Days as section array.
And dictData dictionary as row array and fetch data based on section.
Edit : now use above filter array in table view methods
#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;
}
Let me know if you required any thing else.