TableView 代理方法详细解释

－、建立 UITableView DataTable = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 420)]; [DataTable setDelegate:self]; [DataTable setDataSource:self]; [self.view addSubview:DataTable]; [DataTable release];二、UITableView各Method说明 //Section总数- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{ return TitleData;}// Section Titles//每个section显示的标题- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{ return @"";}//指定有多少个分区(Section)，默认为1- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 4;}//指定每个分区中有多少行，默认为1- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{}//绘制Cell-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {static NSString *SimpleTableIdentifier = @"SimpleTableIdentifier";      UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:                             SimpleTableIdentifier];    if (cell == nil) {          cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault                                       reuseIdentifier: SimpleTableIdentifier] autorelease]; } cell.imageView.image=image;//未选cell时的图片 cell.imageView.highlightedImage=highlightImage;//选中cell后的图片 cell.text=//..... return cell;}//行缩进-(NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath{ NSUInteger row = [indexPath row]; return row;}//改变行的高度- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{    return 40;}//定位[TopicsTable setContentOffset:CGPointMake(0, promiseNum * 44 + Chapter * 20)];//返回当前所选cellNSIndexPath *ip = [NSIndexPath indexPathForRow:row inSection:section];[TopicsTable selectRowAtIndexPath:ip animated:YES scrollPosition:UITableViewScrollPositionNone];[tableView setSeparatorStyle:UITableViewCellSelectionStyleNone];//选中Cell响应事件- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ [tableView deselectRowAtIndexPath:indexPath animated:YES];//选中后的反显颜色即刻消失}//判断选中的行（阻止选中第一行）-(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath{    NSUInteger row = [indexPath row];    if (row == 0)        return nil;       return indexPath;}//划动cell是否出现del按钮- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {}//编辑状态- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyleforRowAtIndexPath:(NSIndexPath *)indexPath{｝[topicsTable setContentSize:CGSizeMake(0,controller.promiseNum * 44)];//右侧添加一个索引表- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{}//返回Section标题内容- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{}//自定义划动时del按钮内容- (NSString *)tableView:(UITableView *)tableViewtitleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath//跳到指的row or section[tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] atScrollPosition:UITableViewScrollPositionBottom animated:NO];三、在UITableViewCell上建立UILable多行显示- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {    static NSString *CellIdentifier = @"Cell";       UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];    if (cell == nil) {        cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];  UILabel *Datalabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, 320, 44)];  [Datalabel setTag:100];  Datalabel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;  [cell.contentView addSubview:Datalabel];  [Datalabel release]; }  UILabel *Datalabel = (UILabel *)[cell.contentView viewWithTag:100]; [Datalabel setFont:[UIFont boldSystemFontOfSize:18]]; Datalabel.text = [data.DataArray objectAtIndex:indexPath.row]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;    return cell;}//选中cell时的颜色typedef enum {    UITableViewCellSelectionStyleNone,    UITableViewCellSelectionStyleBlue,    UITableViewCellSelectionStyleGray} UITableViewCellSelectionStyle //cell右边按钮格式typedef enum {    UITableViewCellAccessoryNone,                   // don't show any accessory view    UITableViewCellAccessoryDisclosureIndicator,    // regular chevron. doesn't track    UITableViewCellAccessoryDetailDisclosureButton, // blue button w/ chevron. tracks    UITableViewCellAccessoryCheckmark               // checkmark. doesn't track} UITableViewCellAccessoryType//是否加换行线typedef enum {    UITableViewCellSeparatorStyleNone,    UITableViewCellSeparatorStyleSingleLine} UITableViewCellSeparatorStyle//改变换行线颜色tableView.separatorColor = [UIColor blueColor];