//根據(jù)view查找控制器
UIViewController *controller = nil;
for (UIView *superV = view.superview; superV; superV = superV.superview) {
UIResponder *nextResponder = [superV nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]]) {
controller = (UIViewController *)nextResponder;
break;
}
}
//獲取當前window的頂層控制器
- (UIViewController *)topViewController {
UIViewController *resultVC;
resultVC = [self _topViewController:[[UIApplication sharedApplication].delegate.window rootViewController]];
while (resultVC.presentedViewController) {
resultVC = [self _topViewController:resultVC.presentedViewController];
}
return resultVC;
}
- (UIViewController *)_topViewController:(UIViewController *)vc {
if ([vc isKindOfClass:[UINavigationController class]]) {
return [self _topViewController:[(UINavigationController *)vc topViewController]];
} else if ([vc isKindOfClass:[UITabBarController class]]) {
return [self _topViewController:[(UITabBarController *)vc selectedViewController]];
} else {
return vc;
}
return nil;
}