CODEWITHSUNDEEP
iphoneiosuitableview
Mike
Mike

Reputation: 2143

A subview of UITableCellView is shrunk when user does swipe-to-delete gesture

I have a UITableView with custom subviews in its cells. When a user does swipe-to-delete gesture on a cell my view is shrunk for a moment while the "Delete" button is being appeared.

As I understand it happens due to some system animation which takes place when the "Delete" button is to be appeared and my subview needs to become shorter. I set my subview's contentMode to UIViewContentModeRedraw and everything looks fine after animation is finished.

I looked how this works in build-in Mail application and everything is fine there.

How can I avoid this shrinking? Is it possible to change this animation to "fade out" or something? Or can I handle a moment when this animation is started to make my subview shorter right away?

SOLUTION:

Finally I found a solution by subclassing UITableViewCell and overriding layoutSubviews method in the following way:

- (void)layoutSubviews
{
    [super layoutSubviews];

    UIView *view = [self.contentView viewWithTag:101];
    CATransition *animation = [CATransition animation];
    animation.duration = 0.2f;
    animation.type = kCATransitionFade;
    [view.layer removeAllAnimations];
    [view.layer addAnimation: animation forKey:@"deletingFade"];
}

Thanks!

Upvotes: 1

Views: 357

Answers (2)

Loquatious
Loquatious

Reputation: 1775

You can use this delegate method:

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = (UITableViewCell *)[tableView cellForRowAtIndexPath:indexPath];
    // do what ever you need to change in your cell
    return  YES;
}

(OR)

You can utilize the following methods in TableViewCell:

- (void)willTransitionToState:(UITableViewCellStateMask)state
- (void)didTransitionToState:(UITableViewCellStateMask)state

You can change according to state if you are using customCell.

Upvotes: 2

onegray
onegray

Reputation: 5105

Override layoutSubviews method in UITableViewCell derived class and update positions for all your subviews accordingly to contentView.bounds.size of the cell.

Upvotes: 1

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