How to make a custom tableView cell accessory

Question

I have not yet found any really good examples on how to do this. There is an image that I want to use as the accessory button and when I put it in and click on it doesn't work. So it looks correct but doesn't work... Here is my code:

[cell setAccessoryType:UITableViewCellAccessoryDetailDisclosureButton];
cell.accessoryView = [[UIImageView alloc]
    initWithImage:[UIImage imageNamed:@"TableView_Green_Disclosure.png"]];

So how do I get my UIImageView to call accessoryButtonTappedForRowWithIndexPath whenever it is tapped?

Answer 1

A thorough reading of accessoryView and accessoryType would reveal that they are mutually exclusive ways to customize a cell.

Setting the accessoryType will cause the table view delegate method to be called when it is tapped.

Setting the accessoryView will ignore the setting of accessoryType and give you something to display. If you want to receive a callback from the custom view you've put in place, it should be a control that is wired up to do so. (Or any view with a gesture recognizer.)

If you use a button, and set its action to accessoryTapped:, you will receive the button as the "sender" argument. You can walk up the view hierarchy until you find a table view cell, and then ask your table view what the indexPath of that cell is. This will then get you an index into your model objects and you be able to act on it appropriately.

Alternate to the button, you can enable interaction on the UIImageView above, and add a gesture recognizer to it.

Answer 2

To make the button actually do something, you'll need to implement - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath from UITableViewDelegate.

When an accessory button is tapped in a row, this method will be called and you'll have the chance to act appropriately using the passed in index path to determine which row's accessory was tapped.