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;       
     }
}

Solution 1

 - (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;        
 }

Solution 2

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.

Comments

[Nazia Jan]

again it is giving error i have done like this indexPath.section

[Baby Groot]

i guess P should be capital in indexpath,.... have edited that. Now try, it should work.

[Rushi]

This - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { if (indexPath.section==0) { return [array1 count]; } else{ return [array1 count]; } } is wrong. You can't get indexPath.section here.

[Shashank Kulshrestha]

Can you NSLog you cellValue and see if there is some data in it or not

[Nazia Jan]

it is not showing NSLog of anything in where we wrute the method for cellForRowAtIndex except that in sections and number of rows NSLog is working so it means it is not entering in rowForIndexPath

[Rushi]

@NaziaJan did u implement this function?

[Baby Groot]

i have added one line of code, add that in your code and see if you are getting correct value in your string to print in your cell label. Try that once.

[Shashank Kulshrestha]

let us continue this discussion in chat

[Cybernetic]

Good answer...you just need to change the else statement to return the count of array2 not array1.

[Krutarth Patel]

@ShashankKulshrestha my current section highlight till second section appear.is this by default ?

[Abdul Saleem]

Awesome.. Thanks.