MJExtension

關(guān)鍵方法

• 轉(zhuǎn)模型:[ZLUser mj_objectWithKeyValues:<#(id)#>]
• MJExtensionLogAllProperties這個(gè)在模型內(nèi)打印模型內(nèi)全部屬性
• 模型內(nèi)含有另外的模型數(shù)組(注意是類(lèi)方法)

+ (NSDictionary *)mj_objectClassInArray {
    return @{
        @"statuses" : [ZLStatus class],
        @"ads" : @"MJAd"
    };
}

• 模型內(nèi)替換屬性(注意是類(lèi)方法)和多級(jí)映射

+ (NSDictionary *)mj_replacedKeyFromPropertyName {
    return @{
              @"ID" : @"id",
              @"desc" : @"desciption",
              @"oldName" : @"name.oldName",
              @"nowName" : @"name.newName",
              @"nameChangedTime" : @"name.info[1].nameChangedTime",
              @"bag" : @"other.bag"
             };
}

• 轉(zhuǎn)模型數(shù)組:[MJUser mj_objectArrayWithKeyValuesArray:dictArray];

• 模型轉(zhuǎn)字典

    //1. 新建模型給模型屬性賦值
    MJUser *user = [[MJUser alloc] init];
    user.name = @"Jack";
    user.icon = @"lufy.png";
    
    MJStatus *status = [[MJStatus alloc] init];
    status.user = user;
    status.text = @"今天的心情不錯(cuò)！";
    // 2.將模型轉(zhuǎn)為字典
    NSDictionary *statusDict = status.mj_keyValues;
    // 3.新建多級(jí)映射的模型
    MJStudent *stu = [[MJStudent alloc] init];
    stu.ID = @"123";
    stu.oldName = @"rose";
    stu.nowName = @"jack";
    stu.desc = @"handsome";
    stu.nameChangedTime = @"2018-09-08";
    stu.books = @[@"Good book", @"Red book"];
    
    MJBag *bag = [[MJBag alloc] init];
    bag.name = @"小書(shū)包";
    bag.price = 205;
    stu.bag = bag;
    
    NSDictionary *stuDict = stu.mj_keyValues;

• 模型數(shù)組轉(zhuǎn)字典

// 1.新建模型數(shù)組
    MJUser *user1 = [[MJUser alloc] init];
    user1.name = @"Jack";
    user1.icon = @"lufy.png";
    
    MJUser *user2 = [[MJUser alloc] init];
    user2.name = @"Rose";
    user2.icon = @"nami.png";
    
    NSArray *userArray = @[user1, user2];
// 2.將模型數(shù)組轉(zhuǎn)為字典數(shù)組
    NSArray *dictArray = [MJUser mj_keyValuesArrayWithObjectArray:userArray];

• 在具體使用中替換屬性(不在每個(gè)模型內(nèi)部轉(zhuǎn),在相對(duì)應(yīng)的字典轉(zhuǎn)模型的地方更換屬性名和字典key不一樣的地方)

    //1. 先寫(xiě)setupReplace方法替換屬性
    [ZLStudent mj_setupReplacedKeyFromPropertyName:^NSDictionary *{
        return @{
                   @"ID" : @"id",
                   @"desc" : @"desciption",
                   @"oldName" : @"name.oldName",
                   @"nowName" : @"name.newName",
                   @"nameChangedTime" : @"name.info[1].nameChangedTime",
                   @"bag" : @"other.bag"
                   };
    }];
    //2. 再字典轉(zhuǎn)模型
     ZLStudent *stu = [ZLStudent mj_objectWithKeyValues:dict4];

• 在具體使用中字典內(nèi)包含字典轉(zhuǎn)模型內(nèi)嵌套模型

    NSDictionary *dict3 = @{
                           @"statuses" : @[
                                   @{
                                       @"text" : @"今天天氣真不錯(cuò)！",
                                       
                                       @"user" : @{
                                               @"name" : @"Rose",
                                               @"icon" : @"nami.png"
                                               }
                                       },
                                   
                                   @{
                                       @"text" : @"明天去旅游了",
                                       
                                       @"user" : @{
                                               @"name" : @"Jack",
                                               @"icon" : @"lufy.png"
                                               }
                                       }
                                   
                                   ],
                           
                           @"ads" : @[
                                   @{
                                       @"image" : @"ad01.png",
                                       @"url" : @"http://www.小碼哥ad01.com"
                                       },
                                   @{
                                       @"image" : @"ad02.png",
                                       @"url" : @"http://www.小碼哥ad02.com"
                                       }
                                   ],
                           
                           @"totalNumber" : @"2014",
                           @"previousCursor" : @"13476589",
                           @"nextCursor" : @"13476599"
                           };
//核心代碼
[ZLStatusResult mj_setupObjectClassInArray:^NSDictionary *{
        return @{
                 @"statuses" : [ZLStatus class], // @"statuses" : [MJStatus class],
                 @"ads" : @"MJAd" // @"ads" : [MJAd class]
                 };
    }];

    //  打印statuses數(shù)組測(cè)試
        for (ZLStatus *status in statusResult.statuses) {
            NSString *text = status.text;
            NSString *name = status.user.name;
            NSString *icon = status.user.icon;
            MJExtensionLog(@"text=%@, name=%@, icon=%@", text, name, icon);
        }
        NSLog(@"statusResult == %@",statusResult);
        for (MJAd *ad in statusResult.ads) {
            NSLog(@"%@---%@",ad.image,ad.url);
        }

-自帶歸結(jié)當(dāng)方案

  // 創(chuàng)建模型
    MJBag *bag = [[MJBag alloc] init];
    bag.name = @"Red bag";
    bag.price = 200.8;
    
    NSString *file = [NSTemporaryDirectory() stringByAppendingPathComponent:@"bag.data"];
    // 歸檔
    [NSKeyedArchiver archiveRootObject:bag toFile:file];
    
    // 解檔
    MJBag *decodedBag = [NSKeyedUnarchiver unarchiveObjectWithFile:file];
    MJExtensionLog(@"name=%@, price=%f", decodedBag.name, decodedBag.price);

YYModel

YYModel用法詳解

• 字典轉(zhuǎn)模型,json轉(zhuǎn)模型
  ZLUser *user = [ZLUser yy_modelWithJSON:json];
  ZLUser *user = [ZLUser yy_modelWithJSON:dict1];
  ZLUser *user = [ZLUser yy_modelWithDictionary:dict1];

• 模型轉(zhuǎn)json
  NSDictionary *json = [user yy_modelToJSONObject];

• 模型內(nèi)替換屬性(注意是類(lèi)方法)和多級(jí)映射,注意相比如MJExtensionYYModel可以一對(duì)多映射

+ (NSDictionary *)modelCustomPropertyMapper {
        return @{@"name" : @"n",
                 @"page" : @"p",
                 @"desc" : @"ext.desc",
                 @"bookID" : @[@"id",@"ID",@"book_id"]};
    }

json轉(zhuǎn)模型中:如果一個(gè)屬性對(duì)應(yīng)了多個(gè)json key，那么轉(zhuǎn)換過(guò)程會(huì)按順序查找，并使用第一個(gè)不為空的值。

• 模型內(nèi)含有另外的模型數(shù)組(注意是類(lèi)方法)
  // 返回容器類(lèi)中的所需要存放的數(shù)據(jù)類(lèi)型 (以 Class 或 Class Name 的形式)。

+ (NSDictionary *)modelContainerPropertyGenericClass {
    return @{
             @"statuses" : [ZLStatus class],
                     @"ads" : @"MJAd"
             };
}

• 字典數(shù)組轉(zhuǎn)模型數(shù)組

NSArray *userArray = [NSArray yy_modelArrayWithClass:[ZLUser class] json:dictArray1];

總結(jié)發(fā)現(xiàn)YYModel處理速度更快用法相對(duì)來(lái)說(shuō)少一些,YYModel其中有一個(gè)多級(jí)映射MJExtension沒(méi)有,MJExtension可以處理的情況多點(diǎn).都是很好的框架,核心原理是利用運(yùn)行時(shí)動(dòng)態(tài)獲取屬性列表然后給屬性賦值,并且做出一些錯(cuò)誤處理.