UITableViewController subclass setEditing: never puts the tableView in editing mode

Question

I am using a SplitViewController and Core Data. My Master view is a simple TableView like the SplitViewController template. I have these three methods:

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    return YES;
}



// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // Delete the row from the data source
        NSManagedObjectContext *context = [self.fetchedResultsController managedObjectContext];
        [context deleteObject:[self.fetchedResultsController objectAtIndexPath:indexPath]];

        [self saveContext];
    }   
}

- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
    return UITableViewCellEditingStyleDelete;
}

I thought this would be enough to show the delete button when I swipe the row to delete it. What happens now is if you swipe it the first time and only the first time, the delete button shows up then disappears. If I swipe again, nothing happens. I need to restart the simulator in order for it to show again. On my TableViewCell, I have a UILabel and a UITextField. I thought maybe the UITextField would be intercepting the swipe, but I resized them so they are only on the left half just in case.

Edit:

So I still haven't figured out why this happens. I thought I would add an edit button to test if the tableView setEditing: even gets called. So in my action method, I do:

- (IBAction)setEditMode:(id)sender {
    [self.tableView setEditing:YES animated:YES];
}

This method does get called, but the tableView never gets in editing mode. All of this is in a subclass of UITableViewController. Is there something else i'm missing? Thanks!

may i know that, Is splitView Controller will work in iphone??? — Venk, Sep 28 '12 at 04:24
@venkat SplitViewController does not work on iPhone, only iPad — Crystal, Sep 28 '12 at 04:57
you have added the iphone tag in this question... thats y i askd... — Venk, Sep 28 '12 at 05:00
@venkat sorry, force of habit for all ios related question. My mistake. — Crystal, Sep 28 '12 at 05:12

score 0 · Answer 1 · answered Sep 28 '12 at 04:29

try this,

- (void)tableView:(UITableView *)tv commitEditingStyle:(UITableViewCellEditingStyle)editingStyle 
forRowAtIndexPath:(NSIndexPath *)indexPath {

    if(editingStyle == UITableViewCellEditingStyleDelete) {

        //Get the object to delete from the array.
        Coffee *coffeeObj = [appDelegate.coffeeArray objectAtIndex:indexPath.row];
        [appDelegate removeCoffee:coffeeObj];

        //Delete the object from the table.
        [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }
}

UITableViewController subclass setEditing: never puts the tableView in editing mode

1 Answers1