iPhone:Add & Delete Row in UITableview with editing mode - iphone

Question

What I want to do is:
Setting editing mode on NavigationBar in UITableView adds an edit button on the left side of the UINavigationBar. When I click this button, I'd like an add button to appear on the right side of the NavigationBar.
When I click on the add button, add a row to the NSMutableArray and update the table.
So please give me ideas, code, or links to develop this functionality.

Answer 1

- (IBAction)DeleteButtonAction:(id)sender
{
[arry removeLastObject];
[Table reloadData];
}
- (IBAction) EditTable:(id)sender
{
if(self.editing)
{
[super setEditing:NO animated:NO];
[Table setEditing:NO animated:NO];
[Table reloadData];
[self.navigationItem.leftBarButtonItem setTitle:#"Edit"];
[self.navigationItem.leftBarButtonItem setStyle:UIBarButtonItemStylePlain];
}
else
{
[super setEditing:YES animated:YES];
[Table setEditing:YES animated:YES];
[Table reloadData];
[self.navigationItem.leftBarButtonItem setTitle:#"Done"];
[self.navigationItem.leftBarButtonItem setStyle:UIBarButtonItemStyleDone];
}
}
- (UITableViewCellEditingStyle)tableView:(UITableView *)aTableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (self.editing == NO || !indexPath) return UITableViewCellEditingStyleNone;
if (self.editing && indexPath.row == ([arry count]))
{
return UITableViewCellEditingStyleInsert;
} else
{
return UITableViewCellEditingStyleDelete;
}
return UITableViewCellEditingStyleNone;
}
- (void)tableView:(UITableView *)aTableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle
forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
[arry removeObjectAtIndex:indexPath.row];
[Table reloadData];
} else if (editingStyle == UITableViewCellEditingStyleInsert)
{
[arry insertObject:#"Tutorial" atIndex:[arry count]];
[Table reloadData];
}
}
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath
toIndexPath:(NSIndexPath *)toIndexPath
{
NSString *item = [[arry objectAtIndex:fromIndexPath.row] retain];
[arry removeObject:item];
[arry insertObject:item atIndex:toIndexPath.row];
[item release];
}
}

Answer 2

Create a private property to have a reference to the Edit button:
#property (nonatomic) UIBarButtonItem *editButton;
In viewDidLoad:, init the button and assign it to the right button of the navigationItem:
self.editButton = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(#"Edit", nil) style:UIBarButtonItemStylePlain target:self action:#selector(toggleEdit:)];
self.navigationItem.rightBarButtonItem = self.editButton;
Create a method to invoke when the Edit button is tapped. Will change the table's editing mode and update the Edit button title:
- (IBAction)toggleEdit:(id)sender {
[self.myTableView setEditing:!self.myTableView.editing animated: YES];
[self.editButton setTitle:self.myTableView.editing ? NSLocalizedString(#"Done", nil) : NSLocalizedString(#"Edit", nil)];
}