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ios 反射，MVC之model
mvc模式大家都很清楚了！最大的好处就是条理清晰一点，view和数据分开，在viewController中只要处理view和数据的逻辑就好了，甚至于逻辑都在model中处理，嗯想说什么呢，过去两个礼拜吧，都在做一件很挫的事情：model都是这样子写的：
@interface SPExangeModel : NSObject/*! * 模型属性 */@property (nonatomic, copy) NSString * city;@property (nonatomic, copy) NSString * content;@property (nonatomic, copy) NSString * create_time;@property (nonatomic, copy) NSString * credits;@property (nonatomic, copy) NSString * eid;@property (nonatomic, copy) NSString * exchange_time;@property (nonatomic, copy) NSString * exchanged;@property (nonatomic, copy) NSString * _id;@property (nonatomic, copy) NSString * image;@property (nonatomic, copy) NSString * key;@property (nonatomic, copy) NSString * num;@property (nonatomic, copy) NSString * status;@property (nonatomic, copy) NSString * surplus;@property (nonatomic, copy) NSString * tag;@property (nonatomic, copy) NSString * title;@end
然后不遗余力的再实现文件中这么写：
@implementation SPExangeModel- (id)initWithDictionary:(NSDictionary *)dictionary{ self = [super init]; if (self) { self.city = SPFormatstring(dictionary[@"city"]); self.content = SPFormatstring(dictionary[@"content"]); self.create_time = dictionary[@"create_time"]; self.credits = SPFormatstring(dictionary[@"credits"]); self.eid = SPFormatstring(dictionary[@"eid"]); self.exchange_time = dictionary[@"exchange_time"]; self.exchanged = SPFormatstring(dictionary[@"exchanged"]); self._id = SPFormatstring(dictionary[@"id"]); self.image = dictionary[@"image"]; self.key = dictionary[@"key"]; self.num = dictionary[@"num"]; self.status = SPFormatstring(dictionary[@"status"]); self.surplus = SPFormatstring(dictionary[@"surplus"]); self.tag = SPFormatstring(dictionary[@"tag"]); self.title = dictionary[@"title"]; } return self;}@end当然，一个类的话无所谓了，可是当道后来，model增加到了几十个之后，嗯，我自己崩溃了，这真的是在搬砖，翻阅了一下runtime头文件，比较有意思，恰好熟悉C#，因为C#中java中都有反射这种说法，所以处理起来就容易很多，嗯ios中也是有的，下面看看改进版本的
model基类：
#import <Foundation/Foundation.h>@interface BaseModel : NSObject/*! * 使用字典初始化 * * @param dictionary 字典 * * @return 结果 */- (id)initWithDictionary:(NSDictionary *)dictionary;//获取字典形式：即属性和值对应起来的字典- (NSDictionary *)toDictionary;@end
#import "BaseModel.h"#import <objc/runtime.h>@interface BaseModel(BS)/*! * 获取属性列表 * * @return 属性列表 */- (NSArray *)getPropertys;@end@implementation BaseModel- (id)initWithDictionary:(NSDictionary *)dictionary{ self = [super init]; if (self) { //自己属性列表 NSArray *keys = [self getPropertys]; //字典属性列表 NSArray *dicKeys = [dictionary allKeys]; __weak typeof(self) weakSelf = self; [dicKeys enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) { if ([keys containsObject:obj]) { [weakSelf setValue:dictionary[obj] forKey:obj]; } }]; } return self;}- (NSArray *)getPropertys{ NSMutableArray *propertys = [[NSMutableArray alloc] init]; unsigned int outCount, i; objc_property_t *properties = class_copyPropertyList([self class], &outCount); for (i=0; i<outCount; i++) { objc_property_t property = properties[i]; NSString * key = [[NSString alloc]initWithCString:property_getName(property) encoding:NSUTF8StringEncoding]; [propertys addObject:key]; } return propertys;}- (NSDictionary *)toDictionary{ NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] init]; //自己属性列表 NSArray *keys = [self getPropertys]; [keys enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) { id value = http://www.mamicode.com/[self valueForKey:obj];>以后的mode就直接集成这个baseModel,然后调用初始化即可！！！！
ios 反射，MVC之model
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