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

1 #import <UIKit/UIKit.h>
2 
3 @interface ViewController : UITableViewController
4 @property (strong, nonatomic) NSMutableArray *mArrDataList;
5 @property (strong, nonatomic) NSMutableArray *mArrImageList;
6 @property (assign, nonatomic) UITableViewCellAccessoryType accessoryType;
7 
8 @end

ViewController.m

  1 #import "ViewController.h"
  2 
  3 @interface ViewController ()
  4 - (void)layoutUI;
  5 - (void)loadData;
  6 - (void)accesoryTypeDidChange:(UIBarButtonItem *)sender;
  7 @end
  8 
  9 @implementation ViewController
 10 
 11 - (void)viewDidLoad {
 12     [super viewDidLoad];
 13     
 14     [self layoutUI];
 15 }
 16 
 17 - (void)didReceiveMemoryWarning {
 18     [super didReceiveMemoryWarning];
 19     // Dispose of any resources that can be recreated.
 20 }
 21 
 22 
 23 - (void)layoutUI {
 24     [self loadData];
 25     
 26     self.view.backgroundColor = [UIColor whiteColor];
 27     self.navigationItem.title = @"在单元格中添加辅助按钮";
 28     UIBarButtonItem *barBtnAccesoryType = [[UIBarButtonItem alloc] initWithTitle:@"切换辅助按钮类型"
 29                                                                            style:UIBarButtonItemStyleDone
 30                                                                           target:self
 31                                                                           action:@selector(accesoryTypeDidChange:)];
 32     self.navigationItem.rightBarButtonItem = barBtnAccesoryType;
 33 }
 34 
 35 - (void)loadData {
 36     NSBundle *bundle = [NSBundle mainBundle];
 37     NSURL *urlFriendsInfo = [bundle URLForResource:@"FriendsInfo" withExtension:@"plist"];
 38     NSDictionary *dicFriendsInfo = [NSDictionary dictionaryWithContentsOfURL:urlFriendsInfo];
 39     NSInteger len = [dicFriendsInfo count];
 40     _mArrDataList = [[NSMutableArray alloc] initWithCapacity:len];
 41     _mArrImageList = [[NSMutableArray alloc] initWithCapacity:len];
 42     for (NSInteger i=0; i<len; i++) {
 43         NSString *strKey = [NSString stringWithFormat:@"%lu", (unsigned long)(i+1)];
 44         NSDictionary *dicData = [dicFriendsInfo objectForKey:strKey];
 45         [_mArrDataList addObject:dicData];
 46         
 47         UIImage *img = [UIImage imageNamed:strKey];
 48         [_mArrImageList addObject:img];
 49     }
 50     
 51     //设置用于单元格的辅助按钮类型的枚举变量
 52     _accessoryType = UITableViewCellAccessoryNone;
 53 }
 54 
 55 - (void)accesoryTypeDidChange:(UIBarButtonItem *)sender {
 56     switch (_accessoryType) {
 57         case UITableViewCellAccessoryNone:
 58         case UITableViewCellAccessoryDisclosureIndicator:
 59         case UITableViewCellAccessoryDetailDisclosureButton:
 60         case UITableViewCellAccessoryCheckmark: {
 61             _accessoryType++;
 62             break;
 63         }
 64         case UITableViewCellAccessoryDetailButton: {
 65             _accessoryType = UITableViewCellAccessoryNone;
 66             break;
 67         }
 68     }
 69     [self.tableView reloadData];
 70 }
 71 
 72 #pragma mark - TableView
 73 - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
 74     return @"FriendsInfo列表";
 75 }
 76 
 77 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
 78     return 1;
 79 }
 80 
 81 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
 82     return [_mArrDataList count];
 83 }
 84 
 85 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 86     static NSString *cellIdentifier = @"cellIdentifier";
 87     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
 88     if (!cell) {
 89         cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
 90     }
 91     
 92     NSDictionary *rowData = _mArrDataList[indexPath.row];
 93     cell.textLabel.text = [rowData objectForKey:@"name"];
 94     cell.detailTextLabel.text = [rowData objectForKey:@"desc"];
 95     cell.imageView.image = _mArrImageList[indexPath.row];
 96     
 97     //设置单元格的辅助按钮类型；默认值是UITableViewCellAccessoryNone
 98     cell.accessoryType = _accessoryType;
 99     return cell;
100     
101     
102     /*
103      UITableViewCellStyleDefault：带imageView；只含水平居左的textLabel
104      UITableViewCellStyleValue1：带imageView；含水平居左的textLabel和水平居右的detailTextLabel（左右结构）
105      UITableViewCellStyleValue2：不带imageView；含水平居左的textLabel和水平居左的detailTextLabel（左右结构）
106      UITableViewCellStyleSubtitle：带imageView；含垂直居上的textLabel和垂直居下的detailTextLabel（上下结构）
107      */
108     
109     /*
110      typedef NS_ENUM(NSInteger, UITableViewCellStyle) {
111      UITableViewCellStyleDefault,    // Simple cell with text label and optional image view (behavior of UITableViewCell in iPhoneOS 2.x)
112      UITableViewCellStyleValue1,        // Left aligned label on left and right aligned label on right with blue text (Used in Settings)
113      UITableViewCellStyleValue2,        // Right aligned label on left with blue text and left aligned label on right (Used in Phone/Contacts)
114      UITableViewCellStyleSubtitle    // Left aligned label on top and left aligned label on bottom with gray text (Used in iPod).
115      };             // available in iPhone OS 3.0
116      */
117 }
118 
119 - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
120     return 60.0;
121 }
122 
123 /**
124  *  辅助按钮点击委托事件；只针对UITableViewCellAccessoryDetailDisclosureButton和UITableViewCellAccessoryDetailButton类型的有效
125  *
126  *  @param tableView 表格视图
127  *  @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）
128  */
129 - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {
130     NSMutableString *mStrMessage = [[NSMutableString alloc] initWithFormat:@"您选择了第%ld行的辅助按钮
类型为：", (indexPath.row + 1)];
131     switch (_accessoryType) {
132         case UITableViewCellAccessoryNone: {
133             //Do nothing
134             break;
135         }
136         case UITableViewCellAccessoryDisclosureIndicator: { //披露指示器
137             //Do nothing
138             break;
139         }
140         case UITableViewCellAccessoryDetailDisclosureButton: { //详细按钮和披露指示器
141             [mStrMessage appendString:@"UITableViewCellAccessoryDetailDisclosureButton 详细按钮和披露指示器"];
142             break;
143         }
144         case UITableViewCellAccessoryCheckmark: { //复选标示
145             //Do nothing
146             break;
147         }
148         case UITableViewCellAccessoryDetailButton: { //详细按钮
149             [mStrMessage appendString:@"UITableViewCellAccessoryDetailButton 详细按钮"];
150             break;
151         }
152     }
153     
154     UIAlertView *alertV = [[UIAlertView alloc] initWithTitle:@"提示信息"
155                                                      message:mStrMessage
156                                                     delegate:nil
157                                            cancelButtonTitle:nil
158                                            otherButtonTitles:@"确定", nil];
159     [alertV show];
160 }
161 
162 @end

AppDelegate.h

1 #import <UIKit/UIKit.h>
2 
3 @interface AppDelegate : UIResponder <UIApplicationDelegate>
4 @property (strong, nonatomic) UIWindow *window;
5 @property (strong, nonatomic) UINavigationController *navigationController;
6 
7 @end

AppDelegate.m

 1 #import "AppDelegate.h"
 2 #import "ViewController.h"
 3 
 4 @interface AppDelegate ()
 5 @end
 6 
 7 @implementation AppDelegate
 8 
 9 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
10     _window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
11     ViewController *viewController = [[ViewController alloc] init];
12     _navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
13     _window.rootViewController = _navigationController;
14     //[_window addSubview:_navigationController.view]; //当_window.rootViewController关联时，这一句可有可无
15     [_window makeKeyAndVisible];
16     return YES;
17 }
18 
19 - (void)applicationWillResignActive:(UIApplication *)application {
20 }
21 
22 - (void)applicationDidEnterBackground:(UIApplication *)application {
23 }
24 
25 - (void)applicationWillEnterForeground:(UIApplication *)application {
26 }
27 
28 - (void)applicationDidBecomeActive:(UIApplication *)application {
29 }
30 
31 - (void)applicationWillTerminate:(UIApplication *)application {
32 }
33 
34 @end

FriendsInfo.plist

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
  3 <plist version="1.0">
  4 <dict>
  5     <key>1</key>
  6     <dict>
  7         <key>name</key>
  8         <string>小明</string>
  9         <key>desc</key>
 10         <string>干啥呢？</string>
 11         <key>location</key>
 12         <string>广州</string>
 13     </dict>
 14     <key>2</key>
 15     <dict>
 16         <key>name</key>
 17         <string>痞子</string>
 18         <key>desc</key>
 19         <string>好好学习，天天向上！</string>
 20         <key>location</key>
 21         <string>广州</string>
 22     </dict>
 23     <key>3</key>
 24     <dict>
 25         <key>name</key>
 26         <string>疯子</string>
 27         <key>desc</key>
 28         <string>倚楼听风雨，淡看江湖路。</string>
 29         <key>location</key>
 30         <string>广州</string>
 31     </dict>
 32     <key>4</key>
 33     <dict>
 34         <key>name</key>
 35         <string>梦醒</string>
 36         <key>desc</key>
 37         <string>书到用时方恨少</string>
 38         <key>location</key>
 39         <string>广州</string>
 40     </dict>
 41     <key>5</key>
 42     <dict>
 43         <key>name</key>
 44         <string>落落</string>
 45         <key>desc</key>
 46         <string>生日快乐！</string>
 47         <key>location</key>
 48         <string>广州</string>
 49     </dict>
 50     <key>6</key>
 51     <dict>
 52         <key>name</key>
 53         <string>丫丫</string>
 54         <key>desc</key>
 55         <string>做个踏实的科研女</string>
 56         <key>location</key>
 57         <string>广州</string>
 58     </dict>
 59     <key>7</key>
 60     <dict>
 61         <key>name</key>
 62         <string>乐天平</string>
 63         <key>desc</key>
 64         <string>在火车上</string>
 65         <key>location</key>
 66         <string>广州</string>
 67     </dict>
 68     <key>8</key>
 69     <dict>
 70         <key>name</key>
 71         <string>北暮</string>
 72         <key>desc</key>
 73         <string>好久不见！</string>
 74         <key>location</key>
 75         <string>广州</string>
 76     </dict>
 77     <key>9</key>
 78     <dict>
 79         <key>name</key>
 80         <string>苹果</string>
 81         <key>desc</key>
 82         <string>喜欢苹果，更喜欢青苹果！</string>
 83         <key>location</key>
 84         <string>广州</string>
 85     </dict>
 86     <key>10</key>
 87     <dict>
 88         <key>name</key>
 89         <string>木头</string>
 90         <key>desc</key>
 91         <string>清心薄欲 静躁作学</string>
 92         <key>location</key>
 93         <string>广州</string>
 94     </dict>
 95     <key>11</key>
 96     <dict>
 97         <key>name</key>
 98         <string>醉清风</string>
 99         <key>desc</key>
100         <string>一醉解千愁</string>
101         <key>location</key>
102         <string>广州</string>
103     </dict>
104     <key>12</key>
105     <dict>
106         <key>name</key>
107         <string>浅の斯</string>
108         <key>desc</key>
109         <string>想剪短发……剪还是不剪(⊙o⊙)？</string>
110         <key>location</key>
111         <string>广州</string>
112     </dict>
113     <key>13</key>
114     <dict>
115         <key>name</key>
116         <string>虚伪</string>
117         <key>desc</key>
118         <string>讨厌虚伪</string>
119         <key>location</key>
120         <string>广州</string>
121     </dict>
122     <key>14</key>
123     <dict>
124         <key>name</key>
125         <string>阁楼</string>
126         <key>desc</key>
127         <string>窗外的风景。</string>
128         <key>location</key>
129         <string>广州</string>
130     </dict>
131 </dict>
132 </plist>