using UIViewController.view as modal view

MyUIViewController

@implementation MyUIViewController
- (void)showOnView:(UIView*)parent_{
    if( !self.view.superview ) [self retain];
    self.view.alpha = 0.0;
    [parent_ addSubview:self.view];
    [UIView animateWithDuration:1.0
                     animations:^(){
                         self.view.alpha = 1.0;
                     }
                     completion:^(BOOL finished){
                         //
                     }];
}
- (void)hide{
    [UIView animateWithDuration:1.0
                     animations:^(){
                         self.view.alpha = 0;
                     }
                     completion:^(BOOL finished){
                         if(delegate) [delegate myViewClosed:self];
                         if( self.view.superview ) [self release];
                         [self.view removeFromSuperview];
                     }];
}
@end