来自accessoryButton的segue的IndexPath [英] IndexPath for segue from accessoryButton
问题描述
我正在尝试使用storyboard / segue来处理UITableView与标准转换以及详细信息披露按钮之间的转换。在这里阅读了几个不同的帖子后，我以这种方式设置了我的项目：
I am attempting to use a storyboard/segue to handle the transition between a UITableView with both standard transition as well as detail disclosure button. Having read a few different posts on here I have set up my project this way:
- UITableViewCell和ViewController之间的主要区域
- 将辅助segue从父ViewController绑定到新的ViewController
-
实现
accessoryButtonTappedForRowWithIndexPath，如下所示：
-(void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {
[self performSegueWithIdentifier:@"DetailSegue" sender:self];
}
这很有效，我的 prepareForSegue：sender：按预期调用。麻烦的是，我需要知道所选元素的indexPath。来自UITableViewCell的segue检索indexPath，如下所示：
This works great and my prepareForSegue: sender: gets called as expected. The trouble is, I need to know the indexPath for the element selected. The segue from the UITableViewCell retrieves the indexPath like this:
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
不幸的是，当我尝试调用accessoryButton时，返回 null 。
Unfortunately when I try to do that having called the accessoryButton, that returns null.
我基于这段代码的原始问题是：详细信息披露按钮和分段
The original question I am basing some of this code off of is here: Detail Disclosure Button and Segues
是否有tableView的方法返回indexPath for accessoryButtons？我是否需要以其他方式访问indexPath？
Is there a method of the tableView which returns indexPath for accessoryButtons? Do I need to access the indexPath in some other manner?
推荐答案
您不必覆盖 accessoryButtonTappedForRowWithIndexPath 。
在 prepareForSegue 中，使用详细信息披露按钮时，而不是：
In prepareForSegue, when working with a detail disclosure button, instead of:
[self.tableView indexPathForSelectedRow]
使用：
[self.tableView indexPathForCell:sender]
发件人已经是详细信息披露按钮的单元格。
The sender is already the detail disclosure button's cell.
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