寻找view所在的viewController

@interface UIView (CJSearchVC)

- (UIViewController *)viewController;

@end

@implementation UIView (CJSearchVC)

- (UIViewController *)viewController
{
for (UIView *next = self; next; next = next.superview) {
UIResponder *nextRespoonder = [next nextResponder];
if ([nextRespoonder isKindOfClass:[UIViewController class]]) {
return (UIViewController *)nextRespoonder;
}
}
return nil;
}

@end