Select one speicific row with one checkmark using UITbaleView - ios

Question

Plz anyone tell me how i select the row at one time with checkmark while other row are not checkmark.I tried but in my case there is mutiple row selected with checkmark. Basically I want to save one row with checkmark when i select another row then previous row deselect and this row select with checkmark. Here is my Code
- (NSString *)getKeyForIndex:(int)index
{
return [NSString stringWithFormat:#"KEY%d",index];
}
- (BOOL) getCheckedForIndex:(int)index
{
if([[[NSUserDefaults standardUserDefaults] valueForKey:[self getKeyForIndex:index]]boolValue]==YES)
{
return YES;
}
else
{
return NO;
} }
- (void) checkedCellAtIndex:(int)index
{ BOOL boolChecked = [self getCheckedForIndex:index];
[[NSUserDefaults standardUserDefaults] setValue:[NSNumber numberWithBool:!boolChecked] forKey:[self getKeyForIndex:index]];
[[NSUserDefaults standardUserDefaults] synchronize];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return List.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *subviewCells = #"Cells";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:subviewCells];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:subviewCells];
}
cell.textLabel.text = [List objectAtIndex:indexPath.row];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:NO];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[self checkedCellAtIndex:indexPath.row];
if([self getCheckedForIndex:indexPath.row]==YES)
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
selectLanguage = [List objectAtIndex:indexPath.row];
}
-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[self checkedCellAtIndex:indexPath.row];
if([self getCheckedForIndex:indexPath.row]==NO)
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
else
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
selectLanguage = [List objectAtIndex:indexPath.row];
}
#end;

Answer 1

Try this :
Single Row Selection:
create a new variable to track the index In Controller:
int selectedIndex;
in UITableView cellForRowAtIndexPath method:
if(indexPath.row == selectedIndex)
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
and in UITableView didSelectRowAtIndex method:
selectedIndex = indexPath.row;
[tableView reloadData];
2 way as per you want:
.h file:
NSIndexPath* checkedIndexPath;
#property (nonatomic, retain) NSIndexPath* checkedIndexPath;
.m file:
#synthesize checkedIndexPath;
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
//do you stuff here
if([self.checkedIndexPath isEqual:indexPath])
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
//do work for checkmark
if(self.checkedIndexPath)
{
UITableViewCell* uncheckCell = [tableView
cellForRowAtIndexPath:self.checkedIndexPath];
uncheckCell.accessoryType = UITableViewCellAccessoryNone;
}
if([self.checkedIndexPath isEqual:indexPath])
{
self.checkedIndexPath = nil;
}
else
{
UITableViewCell* cell = [tableView cellForRowAtIndexPath:indexPath];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
self.checkedIndexPath = indexPath;
}
}
Happy coding!!