UITableView With Multiple Sections

Question

I want to make tableView with multiple section but i do not want to use dictionary i have two arrays i want that first array should be loaded in first section and second in second sections.

I have arrayOne with 3 items and arrayTwo with 4 items so how to add them and show them in sections.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{
    if(section == 0)
        return resultArray.count;
    else
        return resultArray.count;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 2;
}


- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
    NSLog(@"Number of Sections");
    if(section == 0)
        return @"Section 1";
    if(section == 1)
        return @"Section 2";
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
     NSLog(@"Table Cell Data");
     static NSString *CellIdentifier = @"Cell";
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
     if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
     }

     appDelegate = (MultipleDetailViewsWithNavigatorAppDelegate *)[[UIApplication sharedApplication] delegate];

     if (indexPath.section==0) {    
         appDelegate = (MultipleDetailViewsWithNavigatorAppDelegate *)[[UIApplication sharedApplication] delegate];
         ObjectData *theCellData = [resultArray objectAtIndex:indexPath.row];
         NSString *cellValue =theCellData.category;
         NSLog(@"Cell Values %@",cellValue);
         cell.textLabel.text = cellValue;
         return cell;
     }
     else {
         ObjectData *theCellData = [resultArray objectAtIndex:indexPath.row];
         NSString *cellValue =theCellData.category;
         cell.textLabel.text = cellValue;
         return cell;       
     }
}

Answer 1

Here are the relevant Swift 3 lines:

func numberOfSections (in tableView: UITableView) -> Int {
    ...
    return numberOfSections
}

func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
    //Not necessary, but will let you format the section headers. Example:
    guard let header = view as? UITableViewHeaderFooterView else { return }
    header.textLabel?.font = UIFont.boldSystemFont(ofSize: 24)
    header.textLabel?.textColor = UIColor.darkGray
    header.textLabel?.textAlignment = .center
    header.textLabel?.frame = header.frame
    view.tintColor = UIColor.white
}

func tableView(_ tableView: UITableView, willDisplayFooterView view: UIView, forSection section: Int) {
    //Also not necessary, but clear footers help space out sections
    view.tintColor = UIColor.clear   
}

func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
    //Spacing between sections:
    return 25
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    ...
    return sectionCount
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    //All your cell setup
    ...
    //I call this to get the absolute row number (disregarding sections)
    let row = getAbsoluteRow_InCurrentSection(indexPath: indexPath)
    //Now you can use the row number to grab a value from an array or CoreData object and use the value to populate your cell!! 
}

func getAbsoluteRow_InCurrentSection(indexPath: IndexPath) -> Int {
    var aggRows = 0
    if currentListEntity == "GrocTask" {
        let curSection = indexPath.section
        for i in 0..<curSection {
            aggRows += flex1ArrayCnt[i]
        }
        aggRows += indexPath.row
    }
    return aggRows
}

//Please be aware, I only included those directly relevant to building a UITableView with sections. I did not include editActions, didSelect, or other UITableView delegate functions.

Answer 2

 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
      return 2 ;
 }

 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
      if (section==0)
      {
             return [array1 count];
      }
      else{
             return [array2 count];
      }
 }

 - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
      if(section == 0)
           return @"Section 1";
      else
           return @"Section 2";
 }


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

      static NSString *CellIdentifier = @"Cell";

      UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
     if (cell == nil) {
      cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
      }

 if (indexPath.section==0) {
     ObjectData *theCellData = [array1 objectAtIndex:indexPath.row];
     NSString *cellValue =theCellData.category;
     cell.textLabel.text = cellValue;
 }
 else {
     ObjectData *theCellData = [array2 objectAtIndex:indexPath.row];
     NSString *cellValue =theCellData.category;
     cell.textLabel.text = cellValue;
 }
     return cell;        
 }

Answer 3

TableView Delegate Method already give the section as :(NSInteger)section.. so we can also use switchCase

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
    {
        switch (section)
        {
            case 0:
                return self.arrMedia.count;
                break;
            case 1:
                return 1;
                break;
        }
        return 0;
    }

Answer 4

You are on almost right track....

Let us consider your two arrays are arrOne and arrTwo.....

    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
      if(section == 0)
      return [arrOne count];
      else
      return [arrTwo count];
    }

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

         static NSString *CellIdentifier = @"Cell";

         UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
        if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
          }

             if (indexPath.section==0) {


        ObjectData *theCellData = [arrOne objectAtIndex:indexPath.row];
        NSString *cellValue =theCellData.category;
        NSLog(@"cellValue = %@",cellValue); //To see the value of string cellValue
        cell.textLabel.text = cellValue;

        return cell;

    }

    else {
        ObjectData *theCellData = [arrTwo objectAtIndex:indexPath.row];
        NSString *cellValue =theCellData.category;
        cell.textLabel.text = cellValue;

        return cell;        
    }
}

Answer 5

Change this if (section==0)

to if (indexPath.section==0)

You have to implement this function :

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
 {
     if(section == 0)
         return arrSection1.count;
      else
         return arrSection2.count;
 }

Answer 6

Your numberOfRowsInSection should be something like this:

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if (section == 0) {
        return firstArray.count;
    } else {
        return secondArray.count;
    }
}