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Possible exceptions in subnets, e.g. Range {2147483647, 1} exceeds maximum index value of NSNotFound – 1

Wrap the statements in the method didSelectRow that set the rows in the picker in a try-catch block. You may do that in all four case statements. e.g @try{ [_subnetsPicker selectRow:[_subnet_array indexOfObject:[NSString stringWithFormat:@"%i",subnets_val]] inComponent:0 animated:YES]; [_subnetsPicker selectRow:[_mask_bits_array indexOfObject:[NSString stringWithFormat:@"%i",mask_bits_val]] inComponent:1 animated:YES]; [_subnetsPicker selectRow:[_host_bits_array indexOfObject:[NSString stringWithFormat:@"%i",host_bits_val]] inComponent:2 animated:YES]; [_subnetsPicker selectRow:[_hps_array indexOfObject:[NSString stringWithFormat:@"%i",hps_val]] inComponent:3 animated:YES]; } @catch(NSException *e){ NSLog(@"error %@",e); }
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