运行时字典转模型，模型快速转字典

如何在您的项目中引入

1、直接集成 (directly integrating)

下载zip包解压后，直接将“SGModelKeyValues”文件夹下的所有文件拖到您的项目中 (Download the zip package decompression, directly under the "SGModelKeyValues" folder to drag all your files to your project)

2、使用CocoaPods (use CocoaPods)

要使用 CocoaPods 将 SGDwonload 集成到您的 Xcode 项目中，请在 Podfile 中指定它

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'

target 'TargetName' do
pod 'SGModleKeyValues', '~> 1.0.0'
end

然后，运行以下命令

$ pod install

转化效率对比

2、字典 --> 模型

转化代码（均转化成功）：

double time1 = CFAbsoluteTimeGetCurrent(); //记录开始时间
NSArray * sgArrays = [SGFirstObject sg_objectArrayFromKeyValues:self.dataSource];
double time2 = CFAbsoluteTimeGetCurrent(); //记录结束时间
NSArray * mjArrays = [SGFirstObject mj_objectArrayWithKeyValuesArray:self.dataSource];
double time3 = CFAbsoluteTimeGetCurrent(); //记录结束时间
NSArray * yyArrays = [NSArray yy_modelArrayWithClass:[SGFirstObject class] json:self.dataSource];
double time4 = CFAbsoluteTimeGetCurrent(); //记录结束时间
NSLog(@"SG %f",time2-time1);
NSLog(@"MJ %f",time3-time2);
NSLog(@"YY %f",time4-time3);

2、模型 --> 字典 效率对比

代码：

NSArray * sgArrays = [SGFirstObject sg_objectArrayFromKeyValues:self.dataSource];
double time1 = CFAbsoluteTimeGetCurrent(); //记录开始时间
id sgKeyValues = [sgArrays sg_keyValues];
double time2 = CFAbsoluteTimeGetCurrent(); //记录结束时间
id mjKeyValues = [sgArrays mj_keyValues];
double time3 = CFAbsoluteTimeGetCurrent(); //记录结束时间
id yyKeyValues = [sgArrays yy_modelToJSONObject];
double time4 = CFAbsoluteTimeGetCurrent(); //记录结束时间

NSLog(@"SG %f",time2-time1);
NSLog(@"MJ %f",time3-time2);
NSLog(@"YY %f",time4-time3);

打印结果：

po sgKeyValues
 {
 age = 18;
 dog =     {
 "nike_Name" = "\U54c8\U58eb\U5947";
 price = "123$";
 };
 first = testtest;
 firstTest = 893722y382738;
 firstTest1 = erewewcwevev;
 firstTest2 = erewew324ev;
 firstTest3 = erewewc4232ev;
 height = "1.78";
 indentifer = 9223372036854775807;
 name = jack;
 },

 po mjKeyValues < 转化失败:不能识别数组 >
 <__NSArrayM 0x600000245220>(
 <SGFirstObject: 0x6000000d6d50>,
 <SGFirstObject: 0x6000000d6dc0>,
 <SGFirstObject: 0x6000000d6e30>,
 <SGFirstObject: 0x6000000d6ea0>,
 <SGFirstObject: 0x6000000d6f10>,
 <SGFirstObject: 0x6000000d6f80>,
 <SGFirstObject: 0x6000000d6ff0>,
 <SGFirstObject: 0x6000000d70d0>
 )

  po yyKeyValues
 {
 age = 18;
 dog =     {
 "nike_Name" = "\U54c8\U58eb\U5947";
 price = "123$";
 };
 first = testtest;
 firstTest = 893722y382738;
 firstTest1 = erewewcwevev;
 firstTest2 = erewew324ev;
 firstTest3 = erewewc4232ev;
 height = "1.78";
 indentifer = 9223372036854775807;
 },

执行效率对比：

 2017-01-12 09:57:55.370 SGExtention[1812:46784] SG 0.000780
 2017-01-12 09:57:55.370 SGExtention[1812:46784] MJ 0.000280
 2017-01-12 09:57:55.370 SGExtention[1812:46784] YY 0.054711

 2017-01-12 09:57:55.370 SGExtention[1812:46784] SG 0.000780
 2017-01-12 09:57:55.370 SGExtention[1812:46784] MJ 0.000280
 2017-01-12 09:57:55.370 SGExtention[1812:46784] YY 0.054711

 2017-01-12 09:59:01.297 SGExtention[1812:46784] SG 0.000470
 2017-01-12 09:59:01.297 SGExtention[1812:46784] MJ 0.000019
 2017-01-12 09:59:01.297 SGExtention[1812:46784] YY 0.000122

 2017-01-12 09:59:07.034 SGExtention[1812:46784] SG 0.000410
 2017-01-12 09:59:07.035 SGExtention[1812:46784] MJ 0.000006
 2017-01-12 09:59:07.035 SGExtention[1812:46784] YY 0.000072

 2017-01-12 09:59:08.850 SGExtention[1812:46784] SG 0.000330
 2017-01-12 09:59:08.851 SGExtention[1812:46784] MJ 0.000005
 2017-01-12 09:59:08.851 SGExtention[1812:46784] YY 0.000073

 2017-01-12 09:59:09.827 SGExtention[1812:46784] SG 0.000425
 2017-01-12 09:59:09.827 SGExtention[1812:46784] MJ 0.000008
 2017-01-12 09:59:09.827 SGExtention[1812:46784] YY 0.000101

 2017-01-12 09:59:11.899 SGExtention[1812:46784] SG 0.000281
 2017-01-12 09:59:11.899 SGExtention[1812:46784] MJ 0.000005
 2017-01-12 09:59:11.899 SGExtention[1812:46784] YY 0.000064


 2017-01-12 10:01:43.746 SGExtention[1849:50563] SG 0.000793
 2017-01-12 10:01:43.746 SGExtention[1849:50563] MJ 0.000286
 2017-01-12 10:01:43.746 SGExtention[1849:50563] YY 0.013458

从打印结果来看，MJ 用时最短，但是数组模型转字典模型失败；YY 第一次转化用时较长，但转化一次之后转化效率大大提升；SG 转化时间较稳定，用时也较短