Chapter 3: IOS Table view delegation protocol and Data Protocol, iostable

Chapter 3: IOS Table view delegation protocol and Data Protocol, iostable

Table view has two important protocols

UITableViewDataSource: Data Source Protocol

Method	Return type	Description	Required
tableView:cellForRowAtIndexPath:	UITableViewCell*	Provides data for table View cells. This method is required.	Yes
tableView:numberOfRowsInSection：	NSInteger	Returns the number of rows in a section.	Yes
tableView:titleForHeaderInSection：	NSString	Returns the title of the node header.	No
tableView:titleForFooterInSection：	NSString	Returns the title of the footer.	No
numberOfSectionsInTableView：	NSInteger	Number of returned sections	No
sectionIndexTitlesForTableView：	NSArray*	Table view section index title	No
tableView:commitEditingStyle:forRowAtIndexPath:	void	Provide data for deletion or modification	No

 

UITableViewDelegate: A delegation protocol used to set the header and footer headers in a table view and respond to some action events.

Method	Return type	Description	Required?
TableView: viewForHeaderInSection:	UIView *	Prepare a custom view for the node header. You can use UITableViewHeaderFooterView after iOS 6.	No
TableView: viewForFooterInSection:	UIView *	Prepare a custom view for the footer. After iOS 6, you can use UITableViewHeaderFooterView	No
TableView: didEndDisplayingHeaderView: forSection:	Void	This method is triggered when the node header is removed from the screen (the method after iOS 6)	No
TableView: didEndDisplayingFooterView: forSection:	Void	Triggered when the footer disappears from the screen (after iOS 6)	No
TableView: didEndDisplayingCell: forRowAtIndexPath:	Void	Triggered when the cell disappears from the screen (the method after iOS 6)	No
TableView: didSelectRowAtIndexPath:	Void	Method called in response to table view Cell Selection	No