CODEWITHSUNDEEP
iosuitableview
Jacksonkr
Jacksonkr

Reputation: 32247

UITableView no requeue / redraw of cells on scroll

I've noticed the cells are taken out of memory when scrolled out of view and then added back into memory when scrolled into view.

I get the performance reasons for this, but since my table only has a couple of cells out of view, is there a way to turn off this caching feature?

Upvotes: 0

Views: 843

Answers (1)

Tom Irving
Tom Irving

Reputation: 10069

You could try using a different cell identifier for each index path.

That way, the UITableView won't be able to find a cell to dequeue, and a new one will be provided.

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

    NSString * CellIdentifier = [NSString stringWithFormat:@"%d - %d", indexPath.row, indexPath.section];
    UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (!cell) cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

    return cell;
}

You could also skip queuing/dequeing entirely, and retain a reference to them yourself, then just return them in the cellForRowAtIndexPath:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    return [myCells objectAtIndex:indexPath.row];
}

Where myCells is an array holding your UITableViewCells.

Upvotes: 1

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