Demo工程使用说明
1、MainActivity onCreate中SDK初始化传入的Product Code需要换成游戏方自己的

2、由于谷歌登录和facebook登录与包名、签名绑定
   需按照文档更换为游戏自己的参数，并注意包名、签名一致
	
3、测试谷歌内购需要先上传包到Google Play内部测试版本，并配置对应商品信息

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User Guide for the Demo Project

1. In MainActivity onCreate method, replace the Product Code passed to SDK initialization with game's Product Code.

2. Since Google login and Facebook login are tied to the package name and signature, need to change the parameters of the game according to the document, and ensure that the package name and signature are consistent.

3. To test Google in-app purchases, need to upload the package to the internal testing version on Google Play and configure the product information.