Question

When I created a UIView in my superview, I want to add a button to this view that act as an exit button.
So when pressed, it will remove this UIView from my superview, how should I do that?
The View and button in that view is created programmatically when a button is pressed

- (IBAction)skillButtonPressed:(UIButton *)sender 
{
    UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(40, 130, 240, 232)];
    UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [cancelButton setFrame:CGRectMake(0, 0, 32, 32)];
    [cancelButton setTitle:@"x" forState:UIControlStateNormal];

    [myView addSubview:cancelButton];
    [self.view addSubview:myView];
}

Answer 1

In your class that creates the view, add a function like this:

//tag for subview - make it unique
#define SUBVIEW_TAG 9999 

- (void) handleExit
{
    UIView * subview = [self.view viewWithTag:SUBVIEW_TAG];
    [subview removeFromSuperview];
}

and when creating the subview do:

- (IBAction)skillButtonPressed:(UIButton *)sender 
{
    UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(40, 130, 240, 232)];
    UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [cancelButton addTarget:self action:@selector(handleExit) forControlEvents:UIControlEventTouchUpInside];
    [cancelButton setFrame:CGRectMake(0, 0, 32, 32)];
    [cancelButton setTitle:@"x" forState:UIControlStateNormal];

    [myView addSubview:cancelButton];
    [myView setTag:SUBVIEW_TAG];
    [self.view addSubview:myView];

    //don't forget to release if you are not using ARC!
}