UITableView的委托和数据源方法
任何人UITableView以为UITableView列出委托方法和数据源方法吗？
UITableView委托和数据源方法是否相同？
我在委托和数据源中准备了一张所有方法。
//_______________________________________________________________________________________________________________ // this represents the display and behaviour of the cells. @protocol UITableViewDelegate @optional // Display customization - (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath; // Variable height support - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath; - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section; - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section; // Section header & footer information. Views are preferred over title should you decide to provide both - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section; // custom view for header. will be adjusted to default or specified header height - (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section; // custom view for footer. will be adjusted to default or specified footer height // Accessories (disclosures). - (UITableViewCellAccessoryType)tableView:(UITableView *)tableView accessoryTypeForRowWithIndexPath:(NSIndexPath *)indexPath __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_NA,__MAC_NA,__IPHONE_2_0,__IPHONE_3_0); - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath; // Selection // Called before the user changes the selection. Return a new indexPath, or nil, to change the proposed selection. - (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath; - (NSIndexPath *)tableView:(UITableView *)tableView willDeselectRowAtIndexPath:(NSIndexPath *)indexPath __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0); // Called after the user changes the selection. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath; - (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0); // Editing // Allows customization of the editingStyle for a particular cell located at 'indexPath'. If not implemented, all editable cells will have UITableViewCellEditingStyleDelete set for them when the table has editing property set to YES. - (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath; - (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0); // Controls whether the background is indented while editing. If not implemented, the default is YES. This is unrelated to the indentation level below. This method only applies to grouped style table views. - (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath; // The willBegin/didEnd methods are called whenever the 'editing' property is automatically changed by the table (allowing insert/delete/move). This is done by a swipe activating a single row - (void)tableView:(UITableView*)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath; - (void)tableView:(UITableView*)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath; // Moving/reordering // Allows customization of the target row for a particular row as it is being moved/reordered - (NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath; // Indentation - (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath; // return 'depth' of row for hierarchies @end //_______________________________________________________________________________________________________________ // this protocol represents the data model object. as such, it supplies no information about appearance (including the cells) @protocol UITableViewDataSource @required - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section; // Row display. Implementers should *always* try to reuse cells by setting each cell's reuseIdentifier and querying for available reusable cells with dequeueReusableCellWithIdentifier: // Cell gets various attributes set automatically based on table (separators) and data source (accessory views, editing controls) - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath; @optional - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView; // Default is 1 if not implemented - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section; // fixed font style. use custom view (UILabel) if you want something different - (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section; // Editing // Individual rows can opt out of having the -editing property set for them. If not implemented, all rows are assumed to be editable. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath; // Moving/reordering // Allows the reorder accessory view to optionally be shown for a particular row. By default, the reorder control will be shown only if the datasource implements -tableView:moveRowAtIndexPath:toIndexPath: - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath; // Index - (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView; // return list of section titles to display in section index view (eg "ABCD...Z#") - (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index; // tell table which section corresponds to section title/index (eg "B",1)) // Data manipulation - insert and delete support // After a row has the minus or plus button invoked (based on the UITableViewCellEditingStyle for the cell), the dataSource must commit the change - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath; // Data manipulation - reorder / moving support - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath; @end
tableView:accessoryButtonTappedForRowWithIndexPath: tableView:didDeselectRowAtIndexPath: tableView:didEndEditingRowAtIndexPath: tableView:didSelectRowAtIndexPath: tableView:editingStyleForRowAtIndexPath: tableView:heightForFooterInSection: tableView:heightForHeaderInSection: tableView:heightForRowAtIndexPath: tableView:indentationLevelForRowAtIndexPath: tableView:shouldIndentWhileEditingRowAtIndexPath: tableView:targetIndexPathForMoveFromRowAtIndexPath:toProposedIndexPath: tableView:titleForDeleteConfirmationButtonForRowAtIndexPath: tableView:viewForFooterInSection: tableView:viewForHeaderInSection: tableView:willBeginEditingRowAtIndexPath: tableView:willDeselectRowAtIndexPath: tableView:willDisplayCell:forRowAtIndexPath: tableView:willSelectRowAtIndexPath:
看看
列出他们？ 不，他们不一样..看看文档.. http://developer.apple.com/library/ios/#documentation/uikit/reference/UITableViewDelegate_Protocol/Reference/Reference.html
数据源方法用于在显示之前生成tableView单元格，页眉和页脚.Delegate方法提供有关这些单元格，页眉和页脚以及其他用户操作处理程序（如单元格选择和编辑）的信息。
我不明白你问题的最后部分。
Apple提供了一个名为“iOS开发中心”的好地方，可以回答几乎所有有关开发iOS设备的问题。 此信息也可通过Xcode获得。
UITableDataSource
的UITableViewDelegate
UITableViewDelegate协议参考
转到链接 ，它将描述UITableView所有基础知识。
UITableView主要方法是：
– tableView:cellForRowAtIndexPath: //必需的方法
– tableView:numberOfRowsInSection: //必需的方法
– numberOfSectionsInTableView: – sectionIndexTitlesForTableView: – tableView:sectionForSectionIndexTitle:atIndex: – tableView:titleForHeaderInSection: – tableView:titleForFooterInSection:
必需的是您必须包含在代码中的那些人。 不要忘记将表委托和数据源与文件所有者链接。
哪个方法返回一个值，即dataSource方法，其他剩余方法是委托方法
下面给出
委托方法
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
数据源
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
数据源方法：
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{}
和
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{}
代表方法：
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{} - (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{}
这是我们用于使表视图工作的主要方法。 除此之外还有很多方法。 阅读UITableView Delegate和Datasource文档以了解更多方法及其工作原理。
#pragma mark Tableview Delegate Method - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; //count of section } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return 1; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:@"TableviewCell"]; UILabel *lbldescription = (UILabel *)[cell viewWithTag:1]; cell.selectionStyle=UITableViewCellSelectionStyleNone; cell.backgroundColor=[UIColor clearColor]; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath; { } -(CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath { return UITableViewAutomaticDimension; } - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{ return UITableViewAutomaticDimension; } - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:@"TableviewCell_Header"]; cell.selectionStyle=UITableViewCellSelectionStyleNone; cell.backgroundColor=[UIColor whiteColor]; return cell; } - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { return 100; }