@interface ViewController ()<UITableViewDataSource,UITableViewDelegate> {     NSArray *sectionTitles; // 每个分区的标题     NSArray *contentsArray; // 每行的内容 } /** @brief 准备数据源 在viewDidLoad方法中调用*/ - (void)readySource {          sectionTitles       = [[NSArray alloc] initWithObjects:                            @"A",@"C",@"F",@"G",@"H",@"M",@"S",@"T",@"X",@"Z", nil];     contentsArray       = [[NSArray alloc] initWithObjects:                             @[@"阿伟",@"阿姨",@"阿三"],                             @[@"蔡芯",@"成龙",@"陈鑫",@"陈丹",@"成名"],                             @[@"芳仔",@"房祖名",@"方大同",@"芳芳",@"范伟"],                             @[@"郭靖",@"郭美美",@"过儿",@"过山车"],                             @[@"何仙姑",@"和珅",@"郝歌",@"好人"],                             @[@"妈妈",@"毛主席"],                             @[@"孙中山",@"沈冰",@"婶婶"],                             @[@"涛涛",@"淘宝",@"套娃"],                             @[@"小二",@"夏紫薇",@"许巍",@"许晴"],                             @[@"周恩来",@"周杰伦",@"张柏芝",@"张大仙"],nil]; }

// 每个分区的页眉 -(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {     return [sectionTitles objectAtIndex:section]; } // 索引目录 -(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {     return sectionTitles; }         ④点击索引，跳转到点击的分区 // 点击目录 -(NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {     // 获取所点目录对应的indexPath值     NSIndexPath *selectIndexPath = [NSIndexPath indexPathForRow:0 inSection:index];          // 让table滚动到对应的indexPath位置     [tableView scrollToRowAtIndexPath:selectIndexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];          return index; }

// 定义其辅助样式        cell.accessoryType      = UITableViewCellAccessoryNone;

// 点击行事件 -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {     // 获取点击行的cell     UITableViewCell *cell   = [tableView cellForRowAtIndexPath:indexPath];          // 如果cell已经被标记     if (cell.accessoryType == UITableViewCellAccessoryCheckmark) {         // 取消标记         cell.accessoryType  = UITableViewCellAccessoryNone;     }          // 如果cell未标记     else{         // 标记cell         cell.accessoryType  = UITableViewCellAccessoryCheckmark;     }     // 取消选中效果     [tableView deselectRowAtIndexPath:indexPath animated:YES]; }

NSString *cellIdentifier = [NSString stringWithFormat:@"cellIdentifier%d%d",indexPath.row,indexPath.section];

NSMutableArray *news_MArray;// 新闻内容数据源     新建一个model类，命名为"newsModel"，存放每一项数据     newsModel.h如下，.m中没有添加其他代码，如果需要拷贝，可以重载copyWithZone方法， #import <Foundation/Foundation.h>   typedef NS_ENUM(NSInteger, NEWSReportType){     NEWSReportOrdinary, // 普通新闻     NEWSReportExclusive,// 独家新闻     NEWSReportSpecial,  // 专题新闻 };   @interface newsModel : NSObject   @property (nonatomic, copy)NSString *       news_image;     //图片 @property (nonatomic, copy)NSString *       news_title;     //标题 @property (nonatomic, copy)NSString *       news_summary;   //摘要 @property (nonatomic, assign)NSInteger      news_replyNo;   //跟帖数量 @property (nonatomic, assign)NEWSReportType reportType;     //报道类型     @end

news_MArray = [[NSMutableArray alloc] init]; for(NSInteger index =0; index<10; index++){     newsModel *model    = [[newsModel alloc] init];     model.news_image    = [NSString stringWithFormat:@"%d.jpg",index+1];     model.news_title    = @"曾在月光之下望烟花";     model.news_summary  = @"曾共看夕阳渐降下 我怎么舍得去放下 要怎么舍得去放下";     model.news_replyNo  = index+196;     model.reportType    = index%3;          [news_MArray addObject:model]; }

// 每个分区行数 -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {     return [news_MArray count]; }

/*****自定义cell******/ newsModel *model    = [news_MArray objectAtIndex:indexPath.row];   UIImageView *   image_view;     //1.添加imageView UILabel *       title_label;    //2.添加标题Label UILabel *       summary_label;  //3.添加摘要Label UILabel *       replyNo_label;  //4.添加跟帖数量Label UIButton  *     extra_view;     //5.属于专题或者独家报道，进行标记 /********************/

/*****自定义cell******/                  //1.添加imageView         CGRect imageViewF   = CGRectMake(5, 5, 85, 65);         image_view          = [[UIImageView alloc] initWithFrame:imageViewF];         [cell addSubview:image_view];                  //2.添加标题Label         CGRect titleLabelF  = CGRectMake(95, 5, 230, 24);         title_label         = [[UILabel alloc] initWithFrame:titleLabelF];         title_label.font    = [UIFont systemFontOfSize:16];//字体大小         [cell addSubview:title_label];                  //3.添加摘要Label         CGRect summaryLabelF  = CGRectMake(97, 27, 210, 40);         summary_label         = [[UILabel alloc] initWithFrame:summaryLabelF];         summary_label.font    = [UIFont systemFontOfSize:12];    // 字体大小         summary_label.textColor     = [UIColor darkGrayColor];  // 文字颜色         summary_label.numberOfLines = 2;         [cell addSubview:summary_label];                  //4.跟帖数量Label         CGRect replyNoLabelF  = CGRectMake(210, 45, 95, 24);         replyNo_label         = [[UILabel alloc] initWithFrame:replyNoLabelF];         replyNo_label.font    = [UIFont systemFontOfSize:12];    // 字体大小         replyNo_label.textColor     = [UIColor darkGrayColor];  // 文字颜色         replyNo_label.textAlignment = NSTextAlignmentRight;      // 文字右对齐                  //5.专题extraView         CGRect extraViewF       = CGRectMake(270, 50, 28, 14);         extra_view              = [[UIButton alloc] initWithFrame:extraViewF];         extra_view.titleLabel.font = [UIFont boldSystemFontOfSize:10];         [extra_view setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];                  // 普通新闻，只添加跟帖数量         if (model.reportType==NEWSReportOrdinary) {            [cell addSubview:replyNo_label];         }         // 专题新闻，添加专题标志，并添加跟帖数量         else if(model.reportType == NEWSReportSpecial){                          // 设置背景色             extra_view.backgroundColor = [UIColor colorWithRed:120.0/255.0 green:170.0/255.0 blue:245.0/255.0 alpha:1.0];                          [extra_view setTitle:@"独家" forState:UIControlStateNormal];// 设置标题                          [cell addSubview:extra_view];                               // 添加                          replyNo_label.frame = CGRectMake(170, 45, 95, 24);          // 改变跟帖数量Label的坐标                          [cell addSubview:replyNo_label];                            // 添加跟帖数量Label         }         // 独家新闻，只添加独家标志         else if(model.reportType == NEWSReportExclusive){                          extra_view.backgroundColor = [UIColor redColor];            // 设置背景颜色                          [extra_view setTitle:@"专题" forState:UIControlStateNormal]; // 设置标题                          [cell addSubview:extra_view];                               // 添加到cell         } /********************/

/*****自定义cell******/     [image_view setImage:[UIImage imageNamed:model.news_image]];// 设置图片     title_label.text    = model.news_title;                     // 设置标题     summary_label.text  = model.news_summary;                   // 设置小标题     replyNo_label.text  = [NSString stringWithFormat:@"%d 跟帖",model.news_replyNo];// 设置跟帖数量 /********************/

-(CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {     return 75; }