IOS字典转模型

1.定义字典和方法

@interface ZooModel : NSObject
@property(nonatomic, copy) NSString *title;
@property(nonatomic, copy) NSString *answer;
@property(nonatomic, copy) NSString *icon;
@property(nonatomic, strong) NSArray *options;

- (instancetype)initWithDict:(NSDictionary *)dictionary;

+ (instancetype)zooWithDict:(NSDictionary *)dictionary;
@end

2.实现转模型方法

@implementation ZooModel
- (instancetype)initWithDict:(NSDictionary *)dictionary {
    if (self = [super init]) {
        self.icon = dictionary[@"icon"];
        self.answer = dictionary[@"answer"];
        self.title = dictionary[@"title"];
        self.options = dictionary[@"options"];
    }
    return self;
}

+ (instancetype)zooWithDict:(NSDictionary *)dictionary {
    return [[self alloc] initWithDict:dictionary];
}
@end

3.声明常量

@property(nonatomic, strong) NSArray *db;

4.懒加载plist文件赋值给常量

 (NSArray *)db {
    if (_db == nil) {
        NSString *string = [[NSBundle mainBundle] pathForResource:@"DB" ofType:@"plist"];
        NSArray *array = [NSArray arrayWithContentsOfFile:string];
        NSMutableArray *mutableArray = [NSMutableArray array];
        for (NSDictionary *dictionary in  array) {
            [mutableArray addObject:[[ZooModel alloc] initWithDict:dictionary]];
        }
        _db = mutableArray;
    }
    return _db;
}