iPhone 开发：UITableView and UITableViewController

注：本文是一份学习笔记。

 

 UITableViewCell is a subclass of UIView, and each row in a UITableView is represented by a UITableViewCell. (Recall that a table on the iPhone can only have one column, so a row will only have one cell.)

 

A UITableView asks its data source for the cells it should display when it is first added to the screen and at least three other times:
• when the user scrolls the table view
• when the table view is removed from the view hierarchy and then added back to the view hierarchy
• when your code sends the message reloadData to the UITableView