Using accessory check mark in a table view - iphone

Question

I have a array of 8 items put in a table view.I am using the following code to set the check mark on tap of a row
[[tableView cellForRowAtIndexPath:indexPath]
setAccessoryType:UITableViewCellAccessoryCheckmark];
.But my problem is
1] whenever i tap my first row ,the fifth rows check mark also get showed up.
And
2] when i scroll the table view after checking a row , and return back , checked mark gets disappears.
How to get rid of these problem.
thanks in advance
here is the code
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:NO];
// find the cell being touched and update its checked/unchecked image
CellView *targetCustomCell = (CellView *)[tableView cellForRowAtIndexPath:indexPath];
[targetCustomCell checkAction:nil];
if ([arrData count]>0)
{
if ([arrData containsObject:[arrName objectAtIndex:indexPath.row]]) {
[arrData removeObject:[arrName objectAtIndex:indexPath.row]];
[[tableView cellForRowAtIndexPath:indexPath] setAccessoryType:UITableViewCellAccessoryNone];
NSLog(#"data removed");
NSLog(#"arrData%#",arrData);
}
else {
[arrData addObject:[arrName objectAtIndex:indexPath.row]];
[[tableView cellForRowAtIndexPath:indexPath] setAccessoryType:UITableViewCellAccessoryCheckmark];
NSLog(#"data added");
NSLog(#"tableArray%#",arrData);
}
}
else {
[arrData addObject:[arrName objectAtIndex:indexPath.row]];
[[tableView cellForRowAtIndexPath:indexPath] setAccessoryType:UITableViewCellAccessoryCheckmark];
NSLog(#"data added");
NSLog(#"arrData%#",arrData);
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *kCustomCellID = #"MyCellID";
CellView *cell = (CellView *)[tableView dequeueReusableCellWithIdentifier:kCustomCellID];
if (cell == nil)
{
cell = (CellView *)[[[CellView alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCustomCellID] autorelease];
}
cell.backgroundColor = [UIColor clearColor];
cell.textLabel.font = [UIFont boldSystemFontOfSize:13];
cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
cell.textLabel.textAlignment = UITextAlignmentLeft;
cell.textLabel.text = [arrName objectAtIndex:indexPath.row];
return cell;
}

Answer 1

for your 1) problem you have provide some code
2) problem :
you need to remember your last selected row for that you need to store your last selected index number by :
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
selectedIndex = indexPath.row;
[tableView reloadData];
}
and in your
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == selectedIndex)
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
cell.accessoryType = UITableViewCellAccessoryNone;
return cell;
}
hope it helps you.