Can I create UITableView with sub-cells?

Hi I want to create a table view with sub cells. What I mean by "sub cells" is, when I click a arrow pointer in a cell, it should show its sub cells with cell indentation.

1. Is this kind of cells available in iPhone?
2. If not, Is this po开发者_开发技巧ssible to do it in some other way?

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This isn't a standard capability of UITableView, but actually isn't that hard to implement. What you need to do is:

• Create a custom UITableViewCell (perhaps called 'OutlineTableViewCell'). It should have a disclosure indicator
• Create a class which implements the UITableViewDataSource protocol to manage the tree structure of the rows. It should manage the indent level and disclosure state.
• Implement methods to expand/collapse sections of the tree (triggered by tapping the disclosure indicator)
• Finally, subclass both of these to add the storage and display of your own data in the view

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Not sure if that'll work in your case, but in one of my apps, I used the following work around to create a two-level table view with normal (level 1) items toggling (level 2) "sub"-cells:

• I have a standard table view, and use its sections as level 1 items.
• For each section, I use a custom view with a UIButton to act as the toggle.
• I keep track of which sections are toggled on / off through an array, and simply return 0 elements for the section when it's off.
• Sub-cells are just regular cells.