YYcarsgroup.h文件代碼:
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1 //
2 // YYcarsgroup.h
3 // 07-汽車展示(高級)
4 //
5 // Created by apple on 14-5-28.
6 // Copyright (c) 2014年 itcase. All rights reserved.
7 //
8
9 #import <Foundation/Foundation.h>
10
11 @interface YYcarsgroup : NSObject
12 @property(nonatomic,copy)NSString *title;
13 @property(nonatomic,strong)NSArray *cars;
14
15 -(instancetype)initWithDict:(NSDictionary *)dict;
16 +(instancetype)carsgroupWithDict:(NSDictionary *)dict;
17 @end
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YYcarsgroup.m文件代碼:
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1 //
2 // YYcarsgroup.m
3 // 07-汽車展示(高級)
4 //
5 // Created by apple on 14-5-28.
6 // Copyright (c) 2014年 itcase. All rights reserved.
7 //
8
9 #import "YYcarsgroup.h"
10 #import "YYcars.h"
11
12 @implementation YYcarsgroup
13 -(instancetype)initWithDict:(NSDictionary *)dict
14 {
15 if (self=[super init]) {
16 //嵌套的字典轉模型
17 self.title=dict[@"title"];
18
19 //注意
20 NSArray *dictcars=dict[@"cars"];
21 //像下面這樣寫可以提高性能
22 NSMutableArray *arrayM=[NSMutableArray arrayWithCapacity:dictcars.count];
23 for (NSDictionary *dict in dictcars) {
24 YYcars *yycars=[[YYcars alloc]initWithDict:dict];
25 [arrayM addObject:yycars];
26 }
27 // 賦值存儲模型的數組給屬性
28 self.cars=arrayM;
29 }
30 return self;
31 }
32
33 +(instancetype)carsgroupWithDict:(NSDictionary *)dict
34 {
35 return [[self alloc]initWithDict:dict];
36 }
37 @end
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YYcars.h文件
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1 //
2 // YYcars.h
3 // 07-汽車展示(高級)
4 //
5 // Created by apple on 14-5-28.
6 // Copyright (c) 2014年 itcase. All rights reserved.
7 //
8
9 #import <Foundation/Foundation.h>
10
11 @interface YYcars : NSObject
12 @property(nonatomic,copy)NSString *name;
13 @property(nonatomic,copy)NSString *icon;
14
15 -(instancetype)initWithDict:(NSDictionary *)dict;
16 +(instancetype)carsWithDict:(NSDictionary *)dict;
17 @end
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YYcars.m文件
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1 //
2 // YYcars.m
3 // 07-汽車展示(高級)
4 //
5 // Created by apple on 14-5-28.
6 // Copyright (c) 2014年 itcase. All rights reserved.
7 //
8
9 #import "YYcars.h"
10
11 @implementation YYcars
12
13 -(instancetype)initWithDict:(NSDictionary *)dict
14 {
15 if (self=[super init]) {
16 self.name=dict[@"name"];
17 self.icon=dict[@"icon"];
18 }
19 return self;
20 }
21 +(instancetype)carsWithDict:(NSDictionary *)dict
22 {
23 return [[self alloc]initWithDict:dict];
24 }
25 @end
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YYViewController.m文件
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1 //
2 // YYViewController.m
3 // 07-汽車展示(高級)
4 //
5 // Created by apple on 14-5-28.
6 // Copyright (c) 2014年 itcase. All rights reserved.
7 //
8
9 #import "YYViewController.h"
10 #import "YYcarsgroup.h"
11 #import "YYcars.h"
12
13 @interface YYViewController ()<UITableViewDataSource>
14 @property (strong, nonatomic) IBOutlet UITableView *tableview;
15 @property(nonatomic,strong) NSArray *car;
16 @end
17
18 @implementation YYViewController
19
20 - (void)viewDidLoad
21 {
22 [super viewDidLoad];
23
24 self.tableview.rowHeight=60.f;
25 self.tableview.dataSource=self;
26 NSLog(@"%d",self.car.count);
27 }
28 #pragma mark- 實現懶加載
29 //1.從包中讀取數據
30 //2.字典轉模型
31 //3.返回cars
32 -(NSArray *)car
33 {
34 if (_car==nil) {
35
36 NSString *fullpath= [[NSBundle mainBundle]pathForResource:@"cars_total.plist" ofType:nil];
37 NSArray *arrayM=[NSArray arrayWithContentsOfFile:fullpath];
38
39 NSMutableArray *carsarray=[NSMutableArray array];
40 for (NSDictionary *dict in arrayM) {
41 YYcarsgroup *carsgroup=[YYcarsgroup carsgroupWithDict:dict];
42 [carsarray addObject:carsgroup];
43 }
44 _car=[carsarray copy];
45 }
46 return _car;
47 }
48
49
50 #pragma mark- 實現tableview的數據展示
51 //1.設置數據源,遵守協議
52 //2.返回組
53 //3.返回行
54 //4.每組每行對應的數據
55 //4.1去緩存中去取cell
56 //4.2若沒有,則創建cell,並蓋章
57 //4.3設置cell的數據
58 //4.4返回cell
59
60 -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
61 {
62 return self.car.count;
63 }
64 -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
65 {
66 YYcarsgroup *carsgroup=self.car[section];
67 return carsgroup.cars.count;
68 }
69 -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
70 {
71 static NSString *identifier=@"car";
72 //4.1去緩存中去取cell
73 UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:identifier];
74 //4.2若沒有,則創建cell,並蓋章
75 if (cell==nil) {
76 cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
77 }
78 //4.3設置cell的數據
79 //設置對應的組
80 YYcarsgroup *carsgroup=self.car[indexPath.section];
81 //設置對應的行
82 YYcars *yycars=carsgroup.cars[indexPath.row];
83
84 cell.imageView.image=[UIImage imageNamed:yycars.icon];
85 cell.textLabel.text=yycars.name;
86 //4.4返回cell
87 return cell;
88 }
89
90 //設置每組的標題
91 -(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
92 {
93 YYcarsgroup *carsgroup=self.car[section];
94 return carsgroup.title;
95 }
96
97 //設置索引
98 -(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView
99 {
100 //利用kvc取出所有的標題
101 NSArray *title=[self.car valueForKeyPath:@"title"];
102 return title;
103 }
104
105 //隱藏狀態欄
106 -(BOOL)prefersStatusBarHidden
107 {
108 return YES;
109 }
110 @end