Expandable tableView in iphone

Question

I want to make this type of expandable/collapsible table vie

Answer 1

In your .h file

LoadCustomCell *cell1;
NSMutableArray  *arrayForBool;
NSMutableArray  *questionArray;
NSMutableArray  *answerArray;

In your .m file

 viewDidLoadMethod {
 _faqTblView.estimatedRowHeight = 30;
 _faqTblView.rowHeight = UITableViewAutomaticDimension;
 arrayForBool = [[NSMutableArray alloc]init];

 _questionArray = [[NSMutableArray alloc]init];
 _answerArray = [[NSMutableArray alloc]init];
 for (int i = 0; i < _questionArray.count; i++) {
        [arrayForBool addObject:@"0"];
    }
    self.faqTblView.dataSource = self;
    self.faqTblView .delegate = self;
    [self.faqTblView reloadData];
 }

after that

 #pragma mark - TableView Datasource & Delegate Method.
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
  return [_questionArray count];
 }
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {

    UILabel *lblText = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 260, 100)];
    lblText.text = [_questionArray objectAtIndex:section];
    return [lblText getLabelHeight] + 20;(created custom class)
 }
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {

UITapGestureRecognizer  *headerTapped   = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(sectionHeaderTapped:)];
cell1 = [[[NSBundle mainBundle] loadNibNamed:@"LoadCustomCell" owner:self options:nil] objectAtIndex:0];
[cell1 setFrame:CGRectMake(0, 0, cell1.frame.size.width, cell1.frame.size.height)];
NSString *numStr = [NSString stringWithFormat:@"%ld. ",section + 1];
[cell1.sideMenuUserNameLabel setText:[numStr stringByAppendingString:[_questionArray objectAtIndex:section]]];
[cell1 setBackgroundColor:[UIColor lightGrayColor]];
cell1.tag = section;
[cell1 addGestureRecognizer:headerTapped];

return cell1;
}

- (void)sectionHeaderTapped:(UITapGestureRecognizer *)gestureRecognizer {

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:gestureRecognizer.view.tag];
if (indexPath.row == 0) {
    BOOL collapsed  = [[arrayForBool objectAtIndex:indexPath.section] boolValue];
    for (int i = 0; i < [_questionArray count]; i++) {
        if (indexPath.section==i) {
            [arrayForBool removeObjectAtIndex:i];
            [arrayForBool insertObject:[NSString stringWithFormat:@"%d", !collapsed] atIndex:i];
        }
    }
    NSLog(@"%@", arrayForBool);
    [self.faqTblView reloadSections:[NSIndexSet indexSetWithIndex:gestureRecognizer.view.tag] withRowAnimation:UITableViewRowAnimationAutomatic];
    for (NSIndexPath *indexPath in self.faqTblView.indexPathsForSelectedRows) {
        [self.faqTblView deselectRowAtIndexPath:indexPath animated:NO];
         }
    cell1.imageView.transform = CGAffineTransformMakeRotation(M_PI);
     }
}

-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *questionCellIdentifier = @"questionCellIdentifier";
QuestionCustomCell *cell = [tableView dequeueReusableCellWithIdentifier:questionCellIdentifier];
if (cell == nil) {
    NSArray * myNib;
    myNib =[[NSBundle mainBundle]loadNibNamed:@"QuestionCustomCell" owner:self options:nil];
    cell = (QuestionCustomCell *)[myNib lastObject];
}

BOOL manyCells  = [[arrayForBool objectAtIndex:indexPath.section] boolValue];
if(manyCells){
    cell.questionNameLbl.text = [_answerArray objectAtIndex:indexPath.section];
}
return cell;
}