Only One RadioButton is Selectable for a Column Group in UITableView - ios

Question

Before asking this question I googled a lot but not able to find suitable answer.
I'm have a UITableView with n number of Columns. The thing is the Column is Grouped according to a key. So my UITableView header is splitted into two, one for the column group and and this column group is divided to show columns.
I have created a custom class for the cell there I display radio button in each column.
Code:
In cellForRowAtIndexPath method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
GridTableViewCell *cell = nil; // My custom class for cell
CGFloat startX = 230;
if (cell == nil)
{
cell = [[GridTableViewCell alloc] initWithStyle1:UITableViewCellStyleDefault reuseIdentifier:#"Cell" withRows:[self.rowHeaderArray objectAtIndex:indexPath.row]];
for (int i = 0; i < [self.groupColumNmeArray count]; i++) { // groupColumNmeArray contains the Column Group name
NSArray *values = [_subColumnDict objectForKey:[self.groupColumNmeArray objectAtIndex:i]]; // subColumnDict contains the value for each column
self.originalDataArray = [CustomTableHeaderParser parseColumnInfo:values];// Parsing the values array for getting column name, type, width etc
for (CustomTableColumn *column in self.originalDataArray)
{
switch (column.columnType) // acc. to column type display the cell with values.
{
case RadioBtn:
{
_btTemp = [[UIButton alloc]initWithFrame:CGRectMake(startX, 2, subCellWidth , 40)];
[_btTemp setTag:indexPath.row];//indexPath.row];
[_btTemp addTarget:self action:#selector(radioButtonsClicked:) forControlEvents:UIControlEventTouchUpInside];
[_btTemp setImage:[UIImage imageNamed:#"radio-off.png"] forState:UIControlStateNormal];
[_btTemp setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
_btTemp.titleLabel.font =[UIFont systemFontOfSize:14.f];
[self.radioButtons addObject:_btTemp];
[cell addSubview:_btTemp];
}
break;
startX += 2+subCellWidth;
}
}
}
cell.selectedBackgroundView = [[UIView alloc] initWithFrame:cell.frame];
cell.selectedBackgroundView.opaque = YES;
return cell;
}
Radio button click action method;
-(IBAction) radioButtonsClicked:(UIButton *) sender {
if ([sender isSelected]) {
[sender setSelected: NO];
[sender setImage:[UIImage imageNamed:#"radio-off.png"] forState:UIControlStateNormal];
} else {
[sender setSelected: YES];
[sender setImage:[UIImage imageNamed:#"radio-on.png"] forState:UIControlStateNormal];
}
NSLog(#"BUTTON TAG %ld",(long)sender.tag);
}
So I'm able to make selections for radio buttons in all column but actually what I want is For each column group only one radio button is selectable.
Can anybody help me. Any help would be greatly appreciable.

Answer 1

You can set other button's selection status as following
-(IBAction) radioButtonsClicked:(UIButton *) sender {
sender.selected = !sender.selected;
for (UIView *vw in sender.superview.subviews)
{
if([vw isKindOfClass:[UIButton class]] && vw != sender)
{
UIButton *otherBtn = (UIButton*)vw;
otherBtn.selected = NO;
}
}
}
for setting button Image - on/off, write that code at the time of creating button in cellforrow..
[_btTemp setImage:[UIImage imageNamed:#"radio-off.png"] forState:UIControlStateNormal];
[_btTemp setImage:[UIImage imageNamed:#"radio-on.png"] forState:UIControlStateSelected];