how to delete a row in UITableView in Xcode 6.2?

Question

I wanna delete a particular row while I drag it. Here is part of code.

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

    [tableData removeObjectAtIndex:indexPath.row];
    [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationFade];
}

Please edit the question and make the code be formatted as code either by adding four spaces before every line or using the {} button — Sami Kuhmonen, Jun 25 '15 at 05:25

Yagnesh Dobariya · Answer 1 · 2015-06-25T06:14:30.640

0

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {

    if (editingStyle == UITableViewCellEditingStyleDelete) {
         [tableData removeObjectAtIndex:indexPath.row];
         [tableView reloadData];
   }

}

edited Jun 25 '15 at 06:14

answered Jun 25 '15 at 05:30

Yagnesh Dobariya

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what happening, can define in brief? – Yagnesh Dobariya Jun 25 '15 at 05:48
der is no error in the code, but things doesn't seem to work. – Panky Jun 25 '15 at 05:51
I added the code but the thing is rows are not deleting and hence no change. – Panky Jun 25 '15 at 05:59
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return tableData.count; } – Yagnesh Dobariya Jun 25 '15 at 06:13

score 0 · Answer 2 · edited May 23 '17 at 12:14

Do you set delegate ?

self.tableView.delegate = self;

With corresponding How do I get the delete button to show when swiping on a UITableViewCell?

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    // Return YES if you want the specified item to be editable.
    return YES;
}

// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // delete from model
        // [self.tableView reloadData]
    }    
}

You can put on breakpoints into your code for check call functions

score 0 · Answer 3 · answered Jun 25 '15 at 06:25

yagnesh dobariya's answer is a working solution, and I would like to propose a modification that makes it more efficient.

Since you are only deleting one row at a time, you can keep using -deleteRowsAtIndexPaths:withRowAnimation: as in your original code. Just sandwich it between -beginUpdates and -endUpdates.

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {

    if (editingStyle == UITableViewCellEditingStyleDelete) {
         [tableView beginUpdates];

         [tableData removeObjectAtIndex:indexPath.row];
         [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];

         [tableView endUpdates];
   }

}

how to delete a row in UITableView in Xcode 6.2?

3 Answers3