如何将动态行和节数组传递给 numberOfRowsInSection 和 cellForRowAtIndexPath

Question

I am facing this issue from many days. Anyone please sort-out this issue.

Below is my rows array, which count should pass in numberOfRowsInSection ?

    (
        (
        "Service Speed",
        "Good Service",
        "Confirmation quality",
        "Quick Service in Reservation"
    ),
        (
        "Check In",
        "Happy on their Service",
        Courtesey,
        "Quick Service at Checkin"
    ),
        (
        "Front office & reception",
        "Overall Quality of Room",
        Check,
        "Response time"
    ),
        (
        "Room Decor",
        "Time taken to serveTime taken to serveTime taken t",
        Bathroom,
        "Facilities in the Room",
        "Choice of menu",
        Housekeeping,
        "Room Service"
    ),
        (
        "Overall Comments",
        "Will you come back again"
    ),
    "Guest Satisfaction Ratings"
  )

My question is, how to pass row array count in numberOfRowsInSection and array values in cellForRowAtIndexPath ?

I tried using below code but I am getting Error:

"[__NSCFString count]: unrecognized selector sent to instance "

 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [GroupName count];
}


-(UITableViewCell *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [GroupName objectAtIndex:section];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [[RowsArr objectAtIndex:section] count];
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
   UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];

  cell.Label.text = [[sections objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];

}

Problem is in the last object of array "Guest Satisfaction Ratings", Because it comes in NSString so only its showing Error.

Answer 1

your problem is here

[[RowsArr objectAtIndex:section] count];

This [RowsArr objectAtIndex:section] returns a string not array , so count can't be applied to a string

Also you send count for RowsArr and access sections arr in cellForRow

Answer 2

Sh_Khan is on the right track. Your problem is with the line:

[[RowsArr objectAtIndex:section] count];

You'll need to determine the type of the object you're getting, using, for example:

if ([[RowsArr objectAtIndex:section] isKindOfClass:[NSArray class]]) {
    return [[RowsArray objectAtIndex:section] count];
} else {
    return 1;
}

Once you do this, you'll also get an issue with

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

as this is also assuming you'll get an array.

Change the line:

cell.Label.text = [[sections objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];

for:

cell.Label.text = [[sections objectAtIndex:indexPath.section] isKindOfClass:[NSArray class]] 
    ? [[sections objectAtIndex:indexPath.section] objectAtIndex:indexPath.row] 
    : [sections objectAtIndex:indexPath.section];

and it'll handle both cases.

EDIT: Not sure where you're getting sections from, so you may need to change that last one to:

cell.Label.text = [[RowsArr objectAtIndex:indexPath.section] isKindOfClass:[NSArray class]] 
    ? [[RowsArr objectAtIndex:indexPath.section] objectAtIndex:indexPath.row] 
    : [RowsArr objectAtIndex:indexPath.section];