release memory

[chikos1984]

Why can't I use [y release] at the end of function?

- (void)functionusedNSTimer *)timer
{
[password resignFirstResponder];
mainViewController* y=[[mainViewController alloc]initWithNibName:@"mainViewController" bundle:nil];
UIView *currentView = (UIView *)[timer userInfo];

for ( UIView *subview in [self.view.superview subviews] ) {

if ((subview.tag != 14)) {

[subview removeFromSuperview];
}
}
[currentView.superview addSubview:[y view]];

//[y release];
}

[Domele]

You can but then y's view would no longer have a controller. You need to find a way to keep a reference to the controller and release it when you are done with it.