using multi section in UITableView and NSArray

Question

i need to have a 61 section in UITableView, thats mean i must have 61 NSArray, right ?!

first i define 61 NSArray, and init that in view did load

it's tired to use this code

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.

    switch (section) {
        case 0: 
           return [searchArray_1 count]; 
           break;
        case 1: 
           return [searchArray_2 count]; 
           break;
        case 2: 
           return [searchArray_3 count]; 
           break;
        case 3: 
           return [searchArray_4 count]; 
           break;
          ...
        case 60: 
           return [searchArray_61 count]; 
           break;
    }
    return 1;
 }

and this code in configure cells

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [self.myTable dequeueReusableCellWithIdentifier:CellIdentifier];

    switch (indexPath.section) {
        case 0:
            cell.textLabel.text = [searchArray_1 objectAtIndex:indexPath.row];
            break;
        case 1:
            cell.textLabel.text = [searchArray_2 objectAtIndex:indexPath.row];
            break;
        case 2:
            cell.textLabel.text = [searchArray_3 objectAtIndex:indexPath.row];
            break;
           ...
        case 60:
            cell.textLabel.text = [searchArray_61 objectAtIndex:indexPath.row];
            break;

        default:
            break;
    }

    return cell;
}

it's working ok, but how can i reduce that arrays

possible duplicate of [What would be a good data structure for UITableView in grouped mode](http://stackoverflow.com/questions/20216902/what-would-be-a-good-data-structure-for-uitableview-in-grouped-mode) — Martin R, Jan 15 '14 at 08:35
you can also user Dictionary.that into store all Array.so,u can simply Access particular array using key and value pair.I think it's best approach... — Renish Dadhaniya, Jan 15 '14 at 08:46

score 3 · Accepted Answer · answered Jan 15 '14 at 08:36

You need anther array.

NSArray * sectionArray = @[searchArray_1, searchArray_2, ...., searchArray_61] ;

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    NSArray * array = sectionArray[section] ;
    return [array count] ;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [self.myTable dequeueReusableCellWithIdentifier:CellIdentifier];
    NSArray * array = sectionArray[indexPath.section] ;
    cell.textLabel.text = array[indexPath.row] ;
    return cell;
}

score 0 · Answer 2 · answered Jan 15 '14 at 08:40

You could make an NSDictionary with all your arrays included e.g. (Assuming you have a property of type NSDictionary with the name database);

self.database = @{ @1 : myArray1, @2:myArray2:};

you still have to fill it the first time by hand. But in your cellForRowAtIndexPath: you could then do something like this:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    NSArray *arrayToUse = self.database[@(indexPath.row)];
    UITableViewCell *cell = [self.myTable dequeueReusableCellWithIdentifier:CellIdentifier];
    cell.textLabel.text = arrayToUse[indexPath.row];
    return cell;
}

So you would use the indexPath.row to lookup the correct NSArray in you NSDictionary.

it's not work probably result in section 1: first object from array 1, and second object from array 2 and the section 2 is same — Almudhafar, Jan 15 '14 at 09:01

score 0 · Answer 3 · answered Jan 15 '14 at 08:49

0

Use Plist Database.plist database into make Dictionary.that into store all Array.so,u can simply Access particular array using key and value pair.I think it's best approach...

answered Jan 15 '14 at 08:49

Renish Dadhaniya

10,642
2
31
56

score 0 · Answer 4 · answered Jan 15 '14 at 09:17

You can use dictionary for this. In your case You need 61 key value pairs. For getting 61 sections You can use

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

And to get required number of rows in each section implement following method.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

}

To fill all the cells with values implement following delegate method.

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

}

Here to get correct data into the table You need to point the values of particular key based on the section.

using multi section in UITableView and NSArray

4 Answers4