interactivePopGestureRecognizer - 弹出或返回到curent视图控制器

Question

如何检测我的interactivePopGestureRecognizer是否已完成并将返回（弹出）到上一个视图控制器或者移位是不够的。然后当前视图控制器将返回其正常位置。

我的代码：

if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
    [self.interactivePopGestureRecognizer addTarget:self action:@selector(defaultGestureAction:)];
}

- (void)defaultGestureAction:(UIGestureRecognizer *)sender {

   if (sender.state == UIGestureRecognizerStateBegan || sender.state == UIGestureRecognizerStateChanged) {

   } else {

   //this code is fired when I touch up
   //is there any way to check this action (pop or stay)?
   }
}