单个单元格未发生TableView单元格扩展

Question

I am expanding a tableViewCell by using the below.However the problem is I am able to expand multiple cells at a time.What I want to do is , if one cell is expanded and any other cell is clicked, the previous one should be unexpanded thus one cell at a time.

Here is how I am expanding.

 -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{


if ([self.expandedCells containsObject:indexPath]) {


    [self.expandedCells removeObject:indexPath];



}else{
    isExpanded=YES;
    [self.expandedCells addObject:indexPath];
    //Populate expanded cell here

 }

 [self.tableView beginUpdates];
 [self.tableView reloadData];
 [self.tableView endUpdates];


}

Answer 1

Got it.Just had to check array count before adding anything.

 -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{


  if ([self.expandedCells containsObject:indexPath]) {


  [self.expandedCells removeObject:indexPath];



  }else{
   isExpanded=YES;
   if (self.expandedCells.count>0) {
   [self.expandedCells removeAllObjects];
    }


  [self.expandedCells addObject:indexPath];
  //Populate expanded cell here

}

 [self.tableView beginUpdates];
 [self.tableView reloadData];
 [self.tableView endUpdates];


}

Answer 2

I am assuming that self.expandedCells has the array of cells to be expanded. If thats the case, in didSelctRow, remove all objects from the expandedCells array and then add the selected cell. And perform reload.

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{


    [self.expandedCells removeAllObjects];
    isExpanded=YES;
    [self.expandedCells addObject:indexPath];



     [self.tableView beginUpdates];
     [self.tableView reloadData];
     [self.tableView endUpdates];


}