ios 7 uitableview cell long press to change value of core data attribute

Question

I am using core data with an entity and several attributes. One of the attributes is named ToDoStatus. The list of the entity records are shown on a tableview and I want to implement following requirement: 1. When the user makes a long press on a cell (about 1 second), the record pressed must change its ToDoStatus value to "Done" and then reload the tableview not showing records with ToDoStatus = "Done". This is my current code: ``` #import "RootViewController.h" #import "AddToDoViewController.h" #import "EditToDoViewController.h" #import "MenuViewController.h" @interface RootViewController () - (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath; @end @implementation RootViewController @synthesize fetchedResultsController, managedObjectContext,AddToDoButton,MenuToDoButton; #pragma mark - #pragma mark View lifecycle - (void)viewDidLoad { [super viewDidLoad]; // [self setTitle:@"Today"]; [[self navigationItem] setRightBarButtonItem:[self editButtonItem]]; s…

Accepted Answer

Here is how you handle a long press:

```
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil)
    {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle 
        reuseIdentifier:@"Cell"] autorelease];
    }

UILongPressGestureRecognizer *lpgr = [[UILongPressGestureRecognizer alloc]
                     initWithTarget:self action:@selector(handleLongPress:)];
    lpgr.minimumPressDuration = 1.0; //seconds
    [cell addGestureRecognizer:lpgr];

[self configureCell:cell atIndexPath:indexPath];

return cell;
}

-(void)handleLongPress:(UILongPressGestureRecognizer *)gestureRecognizer 
{
            CGPoint p = [gestureRecognizer locationInView:self.tableView];

NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:p];
            if (indexPath == nil)
               NSLog(@"long press on table view but not on a row");
            else
            {
                 if (gestureRecognizer.state == UIGestureRecognizerStateEnded) {
                     NSLog(@"UIGestureRecognizerStateEnded");
                     //Do Whatever You want on End of Gesture
                 }
                 else if (gestureRecognizer.state == UIGestureRecognizerStateBegan){

UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Announcement" message: @"You have long-pressed the row...!" delegate: nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
                     [alert show];
                     [alert release];
                     NSLog(@"UIGestureRecognizerStateBegan.");

NSLog(@"long press on table view at row %d", indexPath.row);

// Update ToDoStatus
                    [self.tableView reloadData];
                    //Do Whatever You want on Began of Gesture
                 }
            }
}
```

Your model will keep track of ToDoStatus in your model and then decide how that will be displayed in the UI.

ios 7 uitableview cell long press to change value of core data attribute

Solution

Problem