swift - 从 cellForItemsInSection 中的 #selector 调用带有两个参数的函数

Question

这是我的功能:

func myFunction(sender:UILongPressGestureRecognizer, index: Int){
print(sender.view?.tag)
}

在 cellForItemsInSection 中，这是我所做的:

let gesture  UILongPressGestureRecognizer()
gesture.addTarget(self, action: #selector(self.myFunction(_:))) //here I want to call the second parameter with the indexPath.row but how? 
gesture.view?.tag = indexPath.row

Answer 1

您不能在 UIGestureRecognizer 操作中传递两个参数。

来自documentation :

The action methods invoked must conform to one of the following signatures:

- (void)handleGesture;
- (void)handleGesture:(UIGestureRecognizer *)gestureRecognizer;