127使用 TableView 自带的单元格样式实现好友列表，另外在单元格中添加辅助按钮

类似的做法如之前这篇随笔：114自定义UITableViewCell（扩展知识：为UITableViewCell添加动画效果）

相比之下：自定义 UITableViewCell 的内容灵活，可根据需求调整展示效果，应用场景更广；一般适用于TableView 自带的单元格样式无法实现的效果。

效果如下：

ViewController.h

 #import <UIKit/UIKit.h>

 @interface ViewController : UITableViewController
 @property (strong, nonatomic) NSMutableArray *mArrDataList;
 @property (strong, nonatomic) NSMutableArray *mArrImageList;
 @property (assign, nonatomic) UITableViewCellAccessoryType accessoryType;

 @end

ViewController.m

 #import "ViewController.h"

 @interface ViewController ()
 - (void)layoutUI;
 - (void)loadData;
 - (void)accesoryTypeDidChange:(UIBarButtonItem *)sender;
 @end

 @implementation ViewController

 - (void)viewDidLoad {
     [super viewDidLoad];

     [self layoutUI];
 }

 - (void)didReceiveMemoryWarning {
     [super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
 }

 - (void)layoutUI {
     [self loadData];

     self.view.backgroundColor = [UIColor whiteColor];
     self.navigationItem.title = @"在单元格中添加辅助按钮";
     UIBarButtonItem *barBtnAccesoryType = [[UIBarButtonItem alloc] initWithTitle:@"切换辅助按钮类型"
                                                                            style:UIBarButtonItemStyleDone
                                                                           target:self
                                                                           action:@selector(accesoryTypeDidChange:)];
     self.navigationItem.rightBarButtonItem = barBtnAccesoryType;
 }

 - (void)loadData {
     NSBundle *bundle = [NSBundle mainBundle];
     NSURL *urlFriendsInfo = [bundle URLForResource:@"FriendsInfo" withExtension:@"plist"];
     NSDictionary *dicFriendsInfo = [NSDictionary dictionaryWithContentsOfURL:urlFriendsInfo];
     NSInteger len = [dicFriendsInfo count];
     _mArrDataList = [[NSMutableArray alloc] initWithCapacity:len];
     _mArrImageList = [[NSMutableArray alloc] initWithCapacity:len];
     for (NSInteger i=; i<len; i++) {
         NSString *strKey = [NSString stringWithFormat:@"%lu", (unsigned long)(i+)];
         NSDictionary *dicData = [dicFriendsInfo objectForKey:strKey];
         [_mArrDataList addObject:dicData];

         UIImage *img = [UIImage imageNamed:strKey];
         [_mArrImageList addObject:img];
     }

     //设置用于单元格的辅助按钮类型的枚举变量
     _accessoryType = UITableViewCellAccessoryNone;
 }

 - (void)accesoryTypeDidChange:(UIBarButtonItem *)sender {
     switch (_accessoryType) {
         case UITableViewCellAccessoryNone:
         case UITableViewCellAccessoryDisclosureIndicator:
         case UITableViewCellAccessoryDetailDisclosureButton:
         case UITableViewCellAccessoryCheckmark: {
             _accessoryType++;
             break;
         }
         case UITableViewCellAccessoryDetailButton: {
             _accessoryType = UITableViewCellAccessoryNone;
             break;
         }
     }
     [self.tableView reloadData];
 }

 #pragma mark - TableView
 - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
     return @"FriendsInfo列表";
 }

 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
     return ;
 }

 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
     return [_mArrDataList count];
 }

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
     static NSString *cellIdentifier = @"cellIdentifier";
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
     if (!cell) {
         cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
     }

     NSDictionary *rowData = _mArrDataList[indexPath.row];
     cell.textLabel.text = [rowData objectForKey:@"name"];
     cell.detailTextLabel.text = [rowData objectForKey:@"desc"];
     cell.imageView.image = _mArrImageList[indexPath.row];

     //设置单元格的辅助按钮类型；默认值是UITableViewCellAccessoryNone
     cell.accessoryType = _accessoryType;
     return cell;

     /*
      UITableViewCellStyleDefault：带imageView；只含水平居左的textLabel
      UITableViewCellStyleValue1：带imageView；含水平居左的textLabel和水平居右的detailTextLabel（左右结构）
      UITableViewCellStyleValue2：不带imageView；含水平居左的textLabel和水平居左的detailTextLabel（左右结构）
      UITableViewCellStyleSubtitle：带imageView；含垂直居上的textLabel和垂直居下的detailTextLabel（上下结构）
      */

     /*
      typedef NS_ENUM(NSInteger, UITableViewCellStyle) {
      UITableViewCellStyleDefault,    // Simple cell with text label and optional image view (behavior of UITableViewCell in iPhoneOS 2.x)
      UITableViewCellStyleValue1,        // Left aligned label on left and right aligned label on right with blue text (Used in Settings)
      UITableViewCellStyleValue2,        // Right aligned label on left with blue text and left aligned label on right (Used in Phone/Contacts)
      UITableViewCellStyleSubtitle    // Left aligned label on top and left aligned label on bottom with gray text (Used in iPod).
      };             // available in iPhone OS 3.0
      */
 }

 - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
     return 60.0;
 }

 /**
  *  辅助按钮点击委托事件；只针对UITableViewCellAccessoryDetailDisclosureButton和UITableViewCellAccessoryDetailButton类型的有效
  *
  *  @param tableView 表格视图
  *  @param indexPath 当前点击单元格的索引路径信息（关键包含信息：section分组和row行）
  */
 - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {
     NSMutableString *mStrMessage = [[NSMutableString alloc] initWithFormat:@"您选择了第%ld行的辅助按钮\n类型为：", (indexPath.row + )];
     switch (_accessoryType) {
         case UITableViewCellAccessoryNone: {
             //Do nothing
             break;
         }
         case UITableViewCellAccessoryDisclosureIndicator: { //披露指示器
             //Do nothing
             break;
         }
         case UITableViewCellAccessoryDetailDisclosureButton: { //详细按钮和披露指示器
             [mStrMessage appendString:@"UITableViewCellAccessoryDetailDisclosureButton 详细按钮和披露指示器"];
             break;
         }
         case UITableViewCellAccessoryCheckmark: { //复选标示
             //Do nothing
             break;
         }
         case UITableViewCellAccessoryDetailButton: { //详细按钮
             [mStrMessage appendString:@"UITableViewCellAccessoryDetailButton 详细按钮"];
             break;
         }
     }

     UIAlertView *alertV = [[UIAlertView alloc] initWithTitle:@"提示信息"
                                                      message:mStrMessage
                                                     delegate:nil
                                            cancelButtonTitle:nil
                                            otherButtonTitles:@"确定", nil];
     [alertV show];
 }

 @end 

AppDelegate.h

 #import <UIKit/UIKit.h>

 @interface AppDelegate : UIResponder <UIApplicationDelegate>
 @property (strong, nonatomic) UIWindow *window;
 @property (strong, nonatomic) UINavigationController *navigationController;

 @end

AppDelegate.m

 #import "AppDelegate.h"
 #import "ViewController.h"

 @interface AppDelegate ()
 @end

 @implementation AppDelegate

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     _window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
     ViewController *viewController = [[ViewController alloc] init];
     _navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
     _window.rootViewController = _navigationController;
     //[_window addSubview:_navigationController.view]; //当_window.rootViewController关联时，这一句可有可无
     [_window makeKeyAndVisible];
     return YES;
 }

 - (void)applicationWillResignActive:(UIApplication *)application {
 }

 - (void)applicationDidEnterBackground:(UIApplication *)application {
 }

 - (void)applicationWillEnterForeground:(UIApplication *)application {
 }

 - (void)applicationDidBecomeActive:(UIApplication *)application {
 }

 - (void)applicationWillTerminate:(UIApplication *)application {
 }

 @end

FriendsInfo.plist

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
     <key>1</key>
     <dict>
         <key>name</key>
         <string>小明</string>
         <key>desc</key>
         <string>干啥呢？</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>2</key>
     <dict>
         <key>name</key>
         <string>痞子</string>
         <key>desc</key>
         <string>好好学习，天天向上！</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>3</key>
     <dict>
         <key>name</key>
         <string>疯子</string>
         <key>desc</key>
         <string>倚楼听风雨，淡看江湖路。</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>4</key>
     <dict>
         <key>name</key>
         <string>梦醒</string>
         <key>desc</key>
         <string>书到用时方恨少</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>5</key>
     <dict>
         <key>name</key>
         <string>落落</string>
         <key>desc</key>
         <string>生日快乐！</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>6</key>
     <dict>
         <key>name</key>
         <string>丫丫</string>
         <key>desc</key>
         <string>做个踏实的科研女</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>7</key>
     <dict>
         <key>name</key>
         <string>乐天平</string>
         <key>desc</key>
         <string>在火车上</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>8</key>
     <dict>
         <key>name</key>
         <string>北暮</string>
         <key>desc</key>
         <string>好久不见！</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>9</key>
     <dict>
         <key>name</key>
         <string>苹果</string>
         <key>desc</key>
         <string>喜欢苹果，更喜欢青苹果！</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>10</key>
     <dict>
         <key>name</key>
         <string>木头</string>
         <key>desc</key>
         <string>清心薄欲 静躁作学</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>11</key>
     <dict>
         <key>name</key>
         <string>醉清风</string>
         <key>desc</key>
         <string>一醉解千愁</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>12</key>
     <dict>
         <key>name</key>
         <string>浅の斯</string>
         <key>desc</key>
         <string>想剪短发……剪还是不剪(⊙o⊙)？</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>13</key>
     <dict>
         <key>name</key>
         <string>虚伪</string>
         <key>desc</key>
         <string>讨厌虚伪</string>
         <key>location</key>
         <string>广州</string>
     </dict>
     <key>14</key>
     <dict>
         <key>name</key>
         <string>阁楼</string>
         <key>desc</key>
         <string>窗外的风景。</string>
         <key>location</key>
         <string>广州</string>
     </dict>
 </dict>
 </plist>