How to handle multiple row selection of data coming from service - ios

Question

I want to handle multiple row selection i.e., not more than 3, from where the data is coming from a service(URL). below is some part of code i have tried, but cannot handle the multiple row selection. Could you spare some time to solve it. TIA
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger row = [indexPath row];
static NSString *MyIdentifier = #"tableCell";
CustomCell *cell = (CustomCell *) [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil) {
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:self options:nil];
for (id currentObject in topLevelObjects){
if ([currentObject isKindOfClass:[UITableViewCell class]]){
cell = (CustomCell *) currentObject;
}
}
}
NSDictionary *thisRow = [self.professionArr objectAtIndex:row];
if(_WSConstProfessionID !=nil && ![_WSConstProfessionID isEqual:#"0"] && ![_WSConstProfessionID isEqual:#""] && _WSConstProfessionSelectedIndex ==row ){
cell .accessoryType=UITableViewCellAccessoryCheckmark;
} else {
cell .accessoryType=UITableViewCellAccessoryNone;
}
cell.lblTitle.text = [thisRow objectForKey:_WSColumnProfessionName];
NSString *str=[thisRow objectForKey:_WSColumnProfessionID];
NSString *stra=_WSConstProfessionID;
if ([str isEqualToString:stra]) {
cell .accessoryType=UITableViewCellAccessoryCheckmark;
cell.highlighted=YES;
} else {
cell .accessoryType=UITableViewCellAccessoryNone;
}
return cell;
}
#pragma mark Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
NSUInteger row = [indexPath row];
NSDictionary *thisRow=[self.professionArr objectAtIndex:row];
NSLog(#"%#",[thisRow description]);
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if (cell.accessoryType == UITableViewCellAccessoryNone){
cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
cell.accessoryType = UITableViewCellAccessoryNone;
}
if(_WSConstProfessionID!=nil && ![_WSConstProfessionID isEqual:#"0"] && ![_WSConstProfessionID isEqual:#""] &&_WSConstProfessionSelectedIndex!=row){
UITableViewCell *cell = [tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:_WSConstProfessionSelectedIndex inSection:0]];
if (cell != nil){
cell .accessoryType=UITableViewCellAccessoryNone;
}
}
if( cell.accessoryType == UITableViewCellAccessoryCheckmark){
_WSConstProfessionID=[thisRow objectForKey:_WSColumnProfessionID];
_WSConstProfessionName=[thisRow objectForKey:_WSColumnProfessionName];
_WSConstProfessionSelectedIndex=row ;
} else {
_WSConstProfessionID=#"0";
_WSConstProfessionName=#"Select";
_WSConstProfessionSelectedIndex=-1 ;
}
[self.navigationController popViewControllerAnimated:YES];
}

Answer 1

Please set this line in viewdidload method
tableView.allowsMultipleSelectionDuringEditing = true
After add this line Apply following code
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
NSUInteger row = [indexPath row];
NSDictionary *thisRow=[self.professionArr objectAtIndex:row];
NSLog(#"%#",[thisRow description]);
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if (cell.accessoryType == UITableViewCellAccessoryNone){
cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
cell.accessoryType = UITableViewCellAccessoryNone;
}
if(_WSConstProfessionID!=nil && ![_WSConstProfessionID isEqual:#"0"] && ![_WSConstProfessionID isEqual:#""] &&_WSConstProfessionSelectedIndex!=row){
UITableViewCell *cell = [tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:_WSConstProfessionSelectedIndex inSection:0]];
if (cell != nil){
cell .accessoryType=UITableViewCellAccessoryNone;
}
}
if( cell.accessoryType == UITableViewCellAccessoryCheckmark){
_WSConstProfessionID=[thisRow objectForKey:_WSColumnProfessionID];
_WSConstProfessionName=[thisRow objectForKey:_WSColumnProfessionName];
_WSConstProfessionSelectedIndex=row ;
} else {
_WSConstProfessionID=#"0";
_WSConstProfessionName=#"Select";
_WSConstProfessionSelectedIndex=-1 ;
}
[self.navigationController popViewControllerAnimated:YES];
}

Answer 2

plz use this code
heare i take NSMutableArray array name categoryArray.
alloc this array into viewdidload().
categoryArray = [NSMutableArray array];
in categoryArray I add the _WSColumnProfessionName ids and handle the coditions.
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
#try {
NSUInteger row = [indexPath row];
static NSString *MyIdentifier = #"tableCell";
CustomCell *cell = (CustomCell *) [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil) {
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:self options:nil];
for (id currentObject in topLevelObjects){
if ([currentObject isKindOfClass:[UITableViewCell class]]){
cell = (CustomCell *) currentObject;
}
}
}
cell.lblTitle.text = [thisRow objectForKey:_WSColumnProfessionName];
if (categoryArray.count == 0)
{
NSLog(#"category array is empty.");
}
else
{
NSString *s = [NSString stringWithFormat:#"%#",[[save_cat_array objectAtIndex:indexPath.row] valueForKey:#"category_id"]];
for (int p =0 ; p<categoryArray.count; p++)
{
NSString *b =[NSString stringWithFormat:#"%#",[categoryArray objectAtIndex:p]];
if ([s isEqualToString:b])
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
cell.lblTitle.textt = [[self.professionArr objectAtIndex:indexPath.row]valueForKey:_WSColumnProfessionName];
break;
}
else
{
cell.lblTitle.text = [[self.professionArr objectAtIndex:indexPath.row]valueForKey:_WSColumnProfessionName];
cell.accessoryType = UITableViewCellAccessoryNone;
}
}
}
return cell;
}
#catch (NSException *exception) {
}
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
#try {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
UITableViewCell *cell = ( UITableViewCell *)[tableView cellForRowAtIndexPath:indexPath];
if (cell.accessoryType == UITableViewCellAccessoryNone)
{
[categoryArray addObject:[[self.professionArr objectAtIndex:indexPath.row] valueForKey:_WSColumnProfessionID];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;
NSString *a = [NSString stringWithFormat:#"%#",[self.professionArr objectAtIndex:indexPath.row] valueForKey:_WSColumnProfessionID]];
for (int i=0;i<categoryArray.count;i++)
{
if ([a isEqualToString:[NSString stringWithFormat:#"%#",[categoryArray objectAtIndex:i]]])
{
[categoryArray removeObjectAtIndex:i];
}
}
}
}
#catch (NSException *exception) {
}
}
you can also handle max 3 condition on base of categoryArray.count == 3