Objectivec UITableView 滚动事件

发布于12月27日

我想检测mytable视图是否已被滚动，我try 了以下所有touch 事件:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
  {
    [super touchesBegan:touches withEvent:event];
    //my code
  }

但似乎所有的touch 事件都不会对滚动做出react ，但它们只会在细胞被touch 、移动时做出react ，...等

有没有办法检测UITableView的滚动事件？

推荐答案

如果实现UITableViewDelegate协议，还可以实现UIScrollViewDelegate种方法之一:

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView

或

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

F或 example, if you have a property called tableView:

// ... setting up the table view here ...
self.tableView.delegate = self;
// ...

// Somewhere in your implementation file:
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    NSLog(@"Will begin dragging");
}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    NSLog(@"Did Scroll");
}

This is because UITableViewDelegate conf或ms to UIScrollViewDelegate, as can be seen in the documentation 或 in the header file.