Activity Indicator is not working ios - ios

Question

I'm new to iOS. I'm using storyboard for UI development. I created a custom header cell with a label and activity Indicator. I created two section in my table view.In first section there is one row and in that row there is a switch in the accessory view.Now is want to do when I on/off the switch the activity indicator start/stop animating.But this is not happening in my case. please help me.
Here is the code snippet:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath
{
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:#"bluetoothCell"];
UISwitch *addswitch=nil;
if (addswitch==nil)
{
addswitch=[[UISwitch alloc]initWithFrame:(CGRectZero)];
}
if (indexPath.section==0)
{
if (indexPath.row==0)
{
cell.accessoryView=addswitch;
[addswitch addTarget:self action:#selector(bluetoohSwitchClicked:) forControlEvents:UIControlEventValueChanged ];
cell.textLabel.text=#"Bluetooth";
}
}
else if (indexPath.section==1) {
cell.textLabel.text=#"bluetooth devices";
cell.accessoryView=nil;
}
return cell;
}
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return 44.0;
}
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection: (NSInteger)section
{
HeaderTableViewCell *customheader;
NSLog(#"section.. %ld",(long)section);
customheader=[ tableView dequeueReusableCellWithIdentifier:#"headercell"];
self.customheader=customheader;
customheader.autoresizesSubviews=YES;
if (section==0) {
customheader.activityloader2.hidden=NO;
customheader.tag=0;
NSLog(#"section %ld,%#",(long)section,customheader);
}
else if(section==1) {
customheader.activityloader2.hidden=NO;
customheader.tag=1;
NSLog(#"sections %ld,%#",(long)section,customheader);
}
return customheader;
}
-(void)bluetoohSwitchClicked:(id) sender
{
UISwitch* switchControl = sender;
if ([switchControl isOn])
{
self.onoffswitch=#"ON";
[switchControl setOn:YES animated:YES];
}
else
{
self.onoffswitch=#"OFF";
[switchControl setOn:NO animated:YES];
}
[self bluetoothStatechanged:[self.onoffswitch isEqualToString:#"ON"]? YES:NO];
}
-(void)bluetoothStatechanged:(BOOL)on
{
HeaderTableViewCell* customheader=(HeaderTableViewCell *)[self tableView:self.maintableview2 viewForHeaderInSection:1];
__block CGRect frame=customheader.frame;
if (on==YES) {
[customheader.activityloader2 startAnimating];
NSLog(#"yes block");
}
else
{
[customheader.activityloader2 stopAnimating];
NSLog(#"No block");
}
}