CODEWITHSUNDEEP
iphoneobjective-cuitableview
ScarletWitch
ScarletWitch

Reputation: 532

Want to present the delete button on right-to-left swipe in UITableView

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

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


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

    if(editingStyle == UITableViewCellEditingStyleDelete){
        //[theSimpsons removeObjectAtIndex:indexPath.row];

        NSString *time = [[arrayList objectAtIndex:indexPath.row] objectForKey:@"TIME"];
        NSString *date= [[arrayList objectAtIndex:indexPath.row] objectForKey:@"DATE"];
        DBManager *dbm = [[DBManager alloc] init];
        [dbm initiallzeDatabase];
        [dbm deleteItemAtIndexPath:time :date];

        //arrayList = [dbm getParkResults];
        //[parkTableView reloadData];

        [arrayList removeObjectAtIndex:indexPath.row];

        [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }
}

I have used the above code in my app. The editing part works fine, but the thing is, the delete button appears only when we swipe from left-to-right on a cell. Now i have a menu that opens on left-to-right swipe like Facebook. So how can i make sure that the delete button appears when the user swipes from right-to-left.

Upvotes: 6

Views: 6841

Answers (4)

iPatel
iPatel

Reputation: 47049

You can got it by using two Methods of UITableVie.

// This only needs to be implemented if you are going to be returning NO
// for some items. By default, all items are editable.
- (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) {
        //add code here for when you hit delete
     //When you remove a cell of your tableview, you also has to remove your array object at index x
    }    
}

After removing the object. You have to reload the UITableView.

[self.tableView reloadData];

For More Information Read This OfficialDocumentaion.

Upvotes: 1

Manu
Manu

Reputation: 4750

Please dont set the delegate to UISwipeGestureRecognizer

Write this in viewDidLoad or where you have initiated your UITableView

 UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(callYourMethod:)];
 swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
 [self.tblView addGestureRecognizer:swipeRight];

No need to write anything in the below method.

- (void)callYourMethod:(UISwipeGestureRecognizer *)recognizer
{

}

Upvotes: 6

Gossamer
Gossamer

Reputation: 309

This might work. Put this code in awakeFromNib or init:

UISwipeGestureRecognizer *swipeDelete = [[UISwipeGestureRecognizer alloc]     initWithTarget:self action:@selector(handleSwipeDelete:)];
[swipeDelete setDirection: UISwipeGestureRecognizerDirectionLeft];
[yourTableView addGestureRecognizer:swipeDelete];

then in handleSwipeDelete organize your cell and show delete button. You will probably need to handle cell state and change it on swipeLeft/swipeRight.

Upvotes: 2

wenbo qiu
wenbo qiu

Reputation: 104

looks like you need to customize the behaviour of UITableViewCell, I have never noticed that Apple has supplied the behaviour after swiping right to left....

Upvotes: 1

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