does a UITableViewCell hold it's views when queued? (for dequeueReusableCellWithIdentifier)

When a customized UITableViewCell is queued (e.g. it goes off the screen) how much of it开发者_JAVA百科's setup is retained? For example:

1. Are any views added to it previously remain in place (eg [cell.contentView addSubview:someUILabel]; )
2. The configuration of such subviews? (e.g. fonts)
3. Data from such subviews?

Just trying to understand when I do dequeueReusableCellWithIdentifier and get a cell from the queue, how re-work, if any, do I need beyond changing the data (e.g. like changing the text values in the UILabels subviews).

---

UITableView won't alter the cell while it is in the queue however it will call -prepareForReuse before dequeuing the cell and that may reset attributes of the cell returned by -dequeueReusableCellWithIdentifier:. As suggested by the documentation, the cells content should remain unaffected and it will be up to your delegate to modify the cell as needed before it is reused.

---

It doesn't do anything to the cell that you don't tell it to. All it does is place it in a new spot. In your code you will need to manually change anything that is unique to the cell that is being asked for.

---

System guard all data for UITableViewCell including any custom view (added as a subView to UITableViewCell), fonts (applied either on the custom view or directly on UITableViewCell) and the data with custom view.