Ok and Cancel button not visible in ios 8 about sdcalertview HOT 5 CLOSED

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
     NSString *buttonTitle = [actionSheet buttonTitleAtIndex:buttonIndex];
    if ([buttonTitle isEqualToString:@"Invite via E-mail"])
   {
    viewTrans.hidden=NO;
    viewMailPopup.hidden=NO;
    }
    else if (![buttonTitle isEqualToString:@"Cancel"])
   {
    //message
   [self inviteViaTextMessage:buttonTitle];
    //[self sendRequestToServer:@"P-Phone"];
     }

 }

 -(void)inviteViaTextMessage:(NSString *)number
  {
    if([MFMessageComposeViewController canSendText])
     {
     }
   else
     {
       if (SYSTEM_VERSION_GREATER_THAN(@"7.0"))
         {
        SDCAlertView *alert = [[SDCAlertView alloc] initWithTitle:@"Failure"
                                                          message:@"Your device doesn't support the message"
                                                         delegate:nil
                                                cancelButtonTitle:@"OK"
                                                otherButtonTitles:nil];
       [alert show];
       }
    else
    {
        ios6AlertView *alert = [[ios6AlertView alloc] initWithTitle:@"Failure"
                                                          message:@"Your device doesn't support the message"
                                                         delegate:nil
                                                cancelButtonTitle:@"OK"
                                                otherButtonTitles:nil];
        [alert show];
    }


    }
}