Custom edit view in UITableViewCell while swipe left. Objective-C or Swift

Question!

How to make a custom edit view in iOS7 UITableView with Objective C like the Evernote oder Apple Reminders app while swipe left. I have tried to set an custom editingAccessoryView, but this didn't work.

Evernote edit view:

enter image description here Reminders edit view:

enter image description here

My current code is

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

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        NSLog(@"delete");
    }
}

I have tried to solve the problem with: (UITableViewController.h)

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    //make cell

    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
    [view setBackgroundColor:[UIColor greenColor]];
    //add Buttons to view

    cell.editingAccessoryView = view;

    return cell;
}

And the same with: (UITableViewCell)

- (void)willTransitionToState:(UITableViewCellStateMask)state;
- (void)setEditing:(BOOL)editing animated:(BOOL)animated;
- (UIView*)editingAccessoryView;


Answers

As I think, It's not best way to using UIGestureRecognizer-based cells.

First, you'll not have any options to use CoreGraphics.

Perfect solution, will UIResponder or one UIGestureRecognizer for whole table view. Not for every UITableViewCell. It will make you app stuck.

By : Ilya Ilin


create a view on the custom cell in the table view and apply PanGestureRecognizer to the view on the cell.Add the buttons to the custom cell, when you swipe the view on the custom cell then the buttons on the custom cell will be visible.

 UIGestureRecognizer* recognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
    recognizer.delegate = self;
    [YourView addGestureRecognizer:recognizer];

And handle the panning on the view in the method

 if (recognizer.state == UIGestureRecognizerStateBegan) {
    // if the gesture has just started, record the current centre location
    _originalCenter = vwCell.center;
}

// 2
if (recognizer.state == UIGestureRecognizerStateChanged) {
    // translate the center
    CGPoint translation = [recognizer translationInView:self];
    vwCell.center = CGPointMake(_originalCenter.x + translation.x, _originalCenter.y);
    // determine whether the item has been dragged far enough to initiate  / complete
    _OnDragRelease = vwCell.frame.origin.x < -vwCell.frame.size.width / 2;

}

// 3
if (recognizer.state == UIGestureRecognizerStateEnded) {
    // the frame this cell would have had before being dragged
    CGPoint translation = [recognizer translationInView:self];

    if (_originalCenter.x+translation.x<22) {
          vwCell.center = CGPointMake(22, _originalCenter.y);
        IsvwRelease=YES;

    }
    CGRect originalFrame = CGRectMake(0, vwCell.frame.origin.y,
                                      vwCell.bounds.size.width, vwCell.bounds.size.height);
    if (!_deleteOnDragRelease) {
        // if the item is not being dragged far enough , snap back to the original location
        [UIView animateWithDuration:0.2
                         animations:^{
                             vwCell.frame = originalFrame;
                         }
         ];
    }
}


override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {
    let delete = UITableViewRowAction(style: .Destructive, title: "Delete") { (action, indexPath) in
        // delete item at indexPath
    }

    let share = UITableViewRowAction(style: .Normal, title: "Disable") { (action, indexPath) in
    // share item at indexPath
    }

    share.backgroundColor = UIColor.blueColor()

    return [delete, share]
}

The above code shows how to create to custom buttons when your swipe on the row.



This video can help you solving your question :)
By: admin