A.实现思路
1.拖入UITableView
2.拖曳、连线UITableView控件
3.Controller遵守UITalbeViewDataSource协议
4.设置UITableView的dataSource
5.加载数据到Model
6.从Model解析数据，显示到View上
B.实现细节
1.UITableView style
（1）Grouped，成组出现，标题和尾部会被分隔开，如上图
（2）Plain
2. cars_simple.plist 文件结构
C.主要代码
Car.h
1 //
2 // Car.h
3 // 01-CarBrand
4 //
5 // Created by hellovoidworld on 14/11/30.
6 // Copyright (c) 2014年 hellovoidworld. All rights reserved.
7 //
8
9 #import <Foundation/Foundation.h>
10
11 @interface Car : NSObject
12
13 @property(nonatomic, strong) NSArray *cars;
14 @property(nonatomic, copy) NSString *title;
15 @property(nonatomic, copy) NSString *desc;
16
17 - (instancetype) initWithDictionary:(NSDictionary *) dictionary;
18 + (instancetype) carWithDictionary:(NSDictionary *) dictionary;
19 + (instancetype) car;
20
21 @end
Car.m
1 //
2 // Car.m
3 // 01-CarBrand
4 //
5 // Created by hellovoidworld on 14/11/30.
6 // Copyright (c) 2014年 hellovoidworld. All rights reserved.
7 //
8
9 #import "Car.h"
10
11 @implementation Car
12
13 - (instancetype) initWithDictionary:(NSDictionary *) dictionary {
14 if (self == [super init]) {
15 self.cars = dictionary[@"cars"];
16 self.title = dictionary[@"title"];
17 self.desc = dictionary[@"desc"];
18 }
19
20 return self;
21 }
22
23 + (instancetype) carWithDictionary:(NSDictionary *) dictionary {
24 return [[self alloc] initWithDictionary:dictionary];
25 }
26
27 + (instancetype) car {
28 return [self carWithDictionary:nil];
29 }
30
31 @end
ViewController.m
1 //
2 // ViewController.m
3 // 01-CarBrand
4 //
5 // Created by hellovoidworld on 14/11/30.
6 // Copyright (c) 2014年 hellovoidworld. All rights reserved.
7 //
8
9 #import "ViewController.h"
10 #import "Car.h"
11
12 @interface ViewController () <UITableViewDataSource>
13
14 @property (weak, nonatomic) IBOutlet UITableView *tableView;
15
16 @property(nonatomic, strong) NSArray *allBrandOfCars;
17
18 @end
19
20 @implementation ViewController
21
22 - (void)viewDidLoad {
23 [super viewDidLoad];
24 // Do any additional setup after loading the view, typically from a nib.
25
26 self.tableView.dataSource = self;
27 }
28
29 - (void)didReceiveMemoryWarning {
30 [super didReceiveMemoryWarning];
31 // Dispose of any resources that can be recreated.
32 }
33
34
35 #pragma mark - dataSource方法
36
37 /** Sections 数，组数 */
38 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
39 return self.allBrandOfCars.count; // 所有车的派系的数量
40 }
41
42 /** 组内的行数 */
43 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
44 Car *car = self.allBrandOfCars[section];
45 return car.cars.count; // 每个派系的车的牌子的数量
46 }
47
48 /** 组的标题
49 这里是车的派系
50 */
51 - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
52 Car *car = self.allBrandOfCars[section];
53 return car.title;
54 }
55
56 /** 组的尾部 */
57 - (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section {
58 Car *car = self.allBrandOfCars[section];
59 return car.desc;
60 }
61
62 /** 行的内容 */
63 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
64 UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil];
65
66 Car *car = self.allBrandOfCars[indexPath.section]; // 车的派系
67 NSString *carName = car.cars[indexPath.row]; // 具体车的牌子
68
69 cell.textLabel.text = carName;
70
71 return cell;
72 }
73
74
75 /** 延迟加载plist文件中的数据 */
76 - (NSArray *) allBrandOfCars {
77 if (nil == _allBrandOfCars) {
78 NSArray *dictArray = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"cars_simple" ofType:@"plist"]];
79
80 NSMutableArray *mdictArray = [NSMutableArray array];
81 for (NSDictionary *dict in dictArray) {
82 Car *car = [Car carWithDictionary:dict];
83 [mdictArray addObject:car];
84 }
85
86 _allBrandOfCars = mdictArray;
87 }
88
89 return _allBrandOfCars;
90 }
91
92
93 @end