Terminating app due to uncaught exception 'NSInvalidArgumentException' unrecognized selector sent to instance

Question

I am new to xcode kindly help me to correct the error my code is below,

-(void)XYZ:(NSString *)id1
{
    id2 = [id1 intValue];
    [self Vehicles:id2];

}

-(NSArray *)Vehicles:(NSInteger) id2
{

    NSString *urlString=[NSString stringWithFormat:@"http://www.xxxx.com/xxxx/vehiclelist.php?uid=%d&format=json",id2];
    NSURL *url=[NSURL URLWithString:urlString];
    NSData *data=[NSData dataWithContentsOfURL:url];
    NSError *error;
    NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
    NSArray *results = [json valueForKey:@"posts"];
    return results;
}

And i pass the id value from the login vied controller the code is,

if(stat!=0&&id2!=0&&[Username length]!=0&&[Password length]!=0)
{
    Services *loc = [[Services alloc] initWithNibName:@"Services" bundle:nil]; 
    loc.modalPresentationStyle = UIModalPresentationCurrentContext;
    loc.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    [self presentViewController:loc animated:YES completion:Nil];
    MyVchicle *about = [[MyVchicle alloc]  initWithNibName:@"MyVchicle" bundle:nil];
    about.modalPresentationStyle = UIModalPresentationCurrentContext;
    about.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    [self presentViewController:about animated:YES completion:Nil];
    [loc XYZ:id1];
}

Thanks in advance.

Answer 1

For sending data from one ViewController to another, follow these steps :

1. Declare a variable in your DestinationViewController.
2. Connect a segue from your SourceViewController to your DestinationViewController.
3. Now in your SourceViewController, write this function :

 -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
        {
        DestinationViewController *destController = [segue destinationViewController];
        destController.varName = @"passThisValue";
        }

4. The above function declares your destinationViewController and assigns a value to the variable of the destinationViewController that we declared above.

This should get you going. Hope this helps.

You can refer to this link.

Passing Data between View Controllers