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 *mArrSortedCollation; 6 7 @end
ViewController.m
1 #import "ViewController.h"
2 #import "Friend.h"
3
4 #define collation [UILocalizedIndexedCollation currentCollation]
5 @interface ViewController ()
6 - (void)layoutUI;
7 - (void)loadData;
8 - (void)loadCollationData;
9 @end
10
11 @implementation ViewController
12
13 - (void)viewDidLoad {
14 [super viewDidLoad];
15
16 [self layoutUI];
17 }
18
19 - (void)didReceiveMemoryWarning {
20 [super didReceiveMemoryWarning];
21 // Dispose of any resources that can be recreated.
22 }
23
24 - (void)layoutUI {
25 [self loadData];
26 [self loadCollationData];
27
28 self.view.backgroundColor = [UIColor whiteColor];
29 self.navigationItem.title = @"在单元格中自动排列指定的数据";
30 }
31
32 /**
33 * 加载数据
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 for (NSInteger i=0; i<len; i++) {
42 NSString *strKey = [NSString stringWithFormat:@"%lu", (unsigned long)(i+1)];
43 NSDictionary *dicData = [dicFriendsInfo objectForKey:strKey];
44
45 Friend *friend = [[Friend alloc] initName:[dicData objectForKey:@"name"]
46 withDesc:[dicData objectForKey:@"desc"]
47 withLocation:[dicData objectForKey:@"location"]
48 withImgIcon:[UIImage imageNamed:strKey]];
49 [_mArrDataList addObject:friend];
50 }
51 }
52
53 /**
54 * 加载排序规则数据
55 */
56 - (void)loadCollationData {
57 //UILocalizedIndexedCollation *collation = [UILocalizedIndexedCollation currentCollation];
58 NSUInteger sectionCount = [collation sectionTitles].count; //分组总数为27；即A-Z, #。（[collation sectionTitles]和[collation sectionIndexTitles]的值是相同的，指针地址不同）
59 NSLog(@"排序规则分组标题是%@", [collation sectionTitles]);
60
61 //创建包含2层嵌套内容的可变长数组mArrCollation
62 NSMutableArray *mArrCollation = [[NSMutableArray alloc] initWithCapacity:sectionCount]; //第1层
63 for (NSUInteger i=0; i< sectionCount; i++) {
64 [mArrCollation addObject:[[NSMutableArray alloc] initWithCapacity:1]]; //第2层
65 }
66
67 for (Friend *friend in _mArrDataList) {
68 NSInteger section = [collation sectionForObject:friend
69 collationStringSelector:@selector(name)]; //注意这里使用排序规则的方法，需为对象；不能为NSDictionary（无法找到适合的selector）
70 [mArrCollation[section] addObject:friend];
71 }
72
73 //将mArrCollation的第2层数据进行排序并逐个分组添加到新的可变长数组_mArrSortedCollation
74 _mArrSortedCollation = [[NSMutableArray alloc] initWithCapacity:sectionCount];
75 for (NSMutableArray *mArrSection in mArrCollation) {
76 NSArray *arrSortedSection = [collation sortedArrayFromArray:mArrSection
77 collationStringSelector:@selector(name)]; //注意这里使用排序规则的方法，需为对象；不能为NSDictionary（无法找到适合的selector）
78 [_mArrSortedCollation addObject:arrSortedSection];
79 }
80 }
81
82 #pragma mark - TableView
83 - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
84 NSString *strTitle = nil;
85 if ([_mArrSortedCollation[section] count] > 0) {
86 strTitle = [collation sectionTitles][section];
87 }
88 return strTitle;
89 }
90
91 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
92 return _mArrSortedCollation.count;
93 }
94
95 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
96 return [_mArrSortedCollation[section] count];
97 }
98
99 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
100 static NSString *cellIdentifier = @"cellIdentifier";
101 UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
102 if (!cell) {
103 cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
104 }
105
106 Friend *friend = _mArrSortedCollation[indexPath.section][indexPath.row];
107 cell.textLabel.text = friend.name;
108 cell.detailTextLabel.text = friend.desc;
109 cell.imageView.image = friend.imgIcon;
110
111 return cell;
112
113
114 /*
115 UITableViewCellStyleDefault：带imageView；只含水平居左的textLabel
116 UITableViewCellStyleValue1：带imageView；含水平居左的textLabel和水平居右的detailTextLabel（左右结构）
117 UITableViewCellStyleValue2：不带imageView；含水平居左的textLabel和水平居左的detailTextLabel（左右结构）
118 UITableViewCellStyleSubtitle：带imageView；含垂直居上的textLabel和垂直居下的detailTextLabel（上下结构）
119 */
120
121 /*
122 typedef NS_ENUM(NSInteger, UITableViewCellStyle) {
123 UITableViewCellStyleDefault, // Simple cell with text label and optional image view (behavior of UITableViewCell in iPhoneOS 2.x)
124 UITableViewCellStyleValue1, // Left aligned label on left and right aligned label on right with blue text (Used in Settings)
125 UITableViewCellStyleValue2, // Right aligned label on left with blue text and left aligned label on right (Used in Phone/Contacts)
126 UITableViewCellStyleSubtitle // Left aligned label on top and left aligned label on bottom with gray text (Used in iPod).
127 }; // available in iPhone OS 3.0
128 */
129 }
130
131 - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
132 return 60.0;
133 }
134
135 #pragma mark - TableView, sectionIndexTitle
136 - (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {
137 return [collation sectionIndexTitles];
138 }
139
140 - (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index {
141 return [collation sectionForSectionIndexTitleAtIndex:index];
142 }
143
144 @end
Friend.h
1 #import <Foundation/Foundation.h> 2 #import <UIKit/UIKit.h> 3 4 @interface Friend : NSObject 5 @property (copy, nonatomic) NSString *name; 6 @property (copy, nonatomic) NSString *desc; 7 @property (copy, nonatomic) NSString *location; 8 @property (strong, nonatomic) UIImage *imgIcon; 9 - (id)initName:(NSString *)name withDesc:(NSString *)desc withLocation:(NSString *)location withImgIcon:(UIImage *)imgIcon; 10 11 @end
Friend.m
1 #import "Friend.h"
2
3 @implementation Friend
4
5 - (id)initName:(NSString *)name withDesc:(NSString *)desc withLocation:(NSString *)location withImgIcon:(UIImage *)imgIcon {
6 if (self = [super init]) {
7 self.name = name;
8 self.desc = desc;
9 self.location = location;
10 self.imgIcon = imgIcon;
11 }
12 return self;
13 }
14
15 @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>
时间： 2024-12-29 21:18:05