把数据全部存在plist文件中，最外面的数组包含2个字典，字典里面分别保存title与car，car是一个数据，里面有2个字典，字典里面分别保存了车的名字与图片的名字。接下来，我们要构建数据模型，把每一行当作一个模型，里面有车的名字与图片：
```
#import@interface CarModule : NSObject
//名字
@property (nonatomic,copy) NSString *name;
//图片
@property (nonatomic,copy) NSString *icon;
+(instancetype)carWithDict:(NSDictionary*)dic;
-(instancetype)initWithDict:(NSDictionary*)dic;
@end
#import "CarModule.h"
@implementation CarModule
+(instancetype)carWithDict:(NSDictionary *)dic{
return [[self alloc]initWithDict:dic];
}
```
-(instancetype)initWithDict:(NSDictionary *)dic{
if (self=[super init]) {
[self setValuesForKeysWithDictionary:dic];
}
return self;
}
@end
接下来创建每一个区域的模型，
#import@interface CarGroup : NSObject
//标题
@property (nonatomic,copy)NSString *title;
//车的数组
@property (nonatomic,copy)NSArray *carGroupArray;
+(instancetype)carGroupWithDict:(NSDictionary*)dic;
-(instancetype)initWithDict:(NSDictionary*)dic;
@end
#import "CarGroup.h"
#import "CarModule.h"
@implementation CarGroup
+(instancetype)carGroupWithDict:(NSDictionary *)dic{
return [[self alloc]initWithDict:dic];
}
-(instancetype)initWithDict:(NSDictionary *)dic{
if (self=[super init]) {
self.title=dic[@"title"];
self.carGroupArray=dic[@"car"];
NSMutableArray *carArray=[NSMutableArray array];
for (NSDictionary *dic in _carGroupArray) {
CarModule *carModule=[CarModule carWithDict:dic];
[carArray addObject:carModule];
}
}
return self;
}
@end
接下来就是填充数据，这里用到了懒加载
#import "CarTableViewViewController.h"#import "CarGroup.h"#import "CarModule.h"@interface CarTableViewViewController()@end
@implementation CarTableViewViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// [self menuData];
tableViewDemo=[[UITableView alloc]initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height/2-10) style:UITableViewStylePlain];
tableViewDemo.dataSource=self;
[[self view]addSubview:tableViewDemo];
}
//数据懒加载
-(NSMutableArray*)menuData{
if (!menuData) {
NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"Menu" ofType:@"plist"];
NSArray *data=[NSArray arrayWithContentsOfFile:plistPath];
menuData=[NSMutableArray array];
for (NSDictionary *dic in data) {
CarGroup *carGroup=[CarGroup carGroupWithDict:dic];
[menuData addObject:carGroup];
}
}
return menuData;
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
return self.menuData.count;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
CarGroup *carGroup=self.menuData[section];
return carGroup.carGroupArray.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *ID=@"car";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:ID];
if (cell==nil) {
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:ID];
}
CarGroup *carGroup=self.menuData[indexPath.section];
CarModule *car=carGroup.carGroupArray[indexPath.row];
cell.imageView.image=[UIImage imageNamed:[car valueForKey:@"icon"]];
cell.textLabel.text=[car valueForKey:@"name"];
return cell;
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
CarGroup *carGroup=self.menuData[section];
return carGroup.title;;
}
```
