IOS 字典转模型

用模型存放字典上的内容，方便使用

一、创建类MJHero

1、在头文件声明属性，声明对象方法，类方法

#import <Foundation/Foundation.h>

@interface MJHero : NSObject
@property (nonatomic, copy) NSString *name;
@property (nonatomic, copy) NSString *icon;
@property (nonatomic, copy) NSString *intro;

+ (instancetype)heroWithDict:(NSDictionary *)dict;
- (instancetype)initWithDict:(NSDictionary *)dict;
@end

2、在.m实现方法

#import "MJHero.h"

@implementation MJHero
+ (instancetype)heroWithDict:(NSDictionary *)dict
{
return [[self alloc] initWithDict:dict];
}

- (instancetype)initWithDict:(NSDictionary *)dict
{
if (self = [super init]) {
[self setValuesForKeysWithDictionary:dict];
}
return self;
}
@end

二、在ViewController.m中添加数组和get方法

#import "MJViewController.h"
#import "MJHero.h"

@property (nonatomic, strong) NSArray *heros;

- (NSArray *)heros
{
if (_heros == nil) {
// 初始化
// 1.获得plist的全路径
NSString *path = [[NSBundle mainBundle] pathForResource:@"heros.plist" ofType:nil];

// 2.加载数组
NSArray *dictArray = [NSArray arrayWithContentsOfFile:path];

// 3.将dictArray里面的所有字典转成模型对象,放到新的数组中
NSMutableArray *heroArray = [NSMutableArray array];
for (NSDictionary *dict in dictArray) {
// 3.1.创建模型对象
MJHero *hero = [MJHero heroWithDict:dict];

// 3.2.添加模型对象到数组中
[heroArray addObject:hero];
}

// 4.赋值
_heros = heroArray;
}
return _heros;
}