[iOS]通過UIView對象擷取該對象所屬的UIViewController

@interface UIView (Extend) 

- (UIViewController *)viewController; 

@end 

@implementation UIView (Extend) 

- (UIViewController*)viewController {   

   for (UIView* next = [self superview]; next; next = next.superview) {    

           UIResponder* nextResponder = [next nextResponder];     

                if ([nextResponder isKindOfClass:[UIViewController class]]) {      

                        return (UIViewController*)nextResponder;

               }   

      }

 return nil; 

}

@end 

使用樣本：

-(void)buttonPress{

    ElectronFrom *electronForm=[[ElectronFrom alloc]init];

    [[self viewController].navigationController pushViewController:electronForm animated:YES];

    [electronForm release];

}