在ios开发中经常在自定义组件或者xib文件中切换到其他视图，那么就需要当前控制器，
- (UIViewController*)viewController {
for (UIView* next = [self superview]; next; next = next.superview) {
UIResponder* nextResponder = [next nextResponder];
if ([nextResponder isKindOfClass:[UINavigationController class]]) {
return (UIViewController*)nextResponder;
}
}
return nil;
}
同理可获取当前控制器所在导航控制器
- (UINavigationController*)viewController {
for (UIView* next = [self superview]; next; next = next.superview) {
UIResponder* nextResponder = [next nextResponder];
if ([nextResponder isKindOfClass:[UINavigationController class]]) {
return (UINavigationController*)nextResponder;
}
}
return nil;
}
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原文：http://blog.csdn.net/chengjiamei/article/details/48024225