Question

I have a custom UITableViewCell:

@interface EditingTableViewCell : UITableViewCell <UITextFieldDelegate> {
    UITextField *editableText;
    UILabel *textLabel;
}

And I did receive editingDidEnd message from UITextField editableText. Now how can I pass it’s message to UITableViewController which creates this cell?
Is creating ivar like this id delegate; within cell and set it to the tableViewController instance an only way?

Answer 1

I think i found a way to do a good job…

• Create @protocol for this cell

    // EditingCellDelegate.h
    @protocol EditingCellDelegate 
     @optional
        - (void)textLabelEditDidEnd:(UITextField *)textField;

    @end

• Add ivar into EditingTableViewCell class

    // EditingTableViewCell.h
    ...
    @property (nonatomic, assign) id <EditingCellDelegate> delegate;

So this way i can pass message to the UITableViewController that conforms that cell’s protocol. Of course you have to check that class conformsToProtocol and respondsToSelector. Now I can call it. Something like this:

//EditingTableViewCell.m
- (IBAction)editDone:(id)sender {
    if([[self delegate] respondsToSelector:@selector(textLabelEditDidEnd:)]) {
        [[self delegate] textLabelEditDidEnd:(UITextField *)sender];
    }
}