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Google Play 提供了许可服务，可让您针对在 Google Play 上发布的应用实施许可政策。 通过该许可服务，您的应用可以在运行时向 Google Play 查询，获取当前用户的许可状态，然后再根据情况决定是否.

Google play 管理中心向所有登录 play 管理中心的开发者公开用于许可的公钥，但会将私钥安全地隐藏在所有用户之外。 当应用请求对您帐号中发布的某个应用进行许可检查时，许可服务. When verifying that the user has purchased or downloaded a legitimate copy of your app from the google play store, it's best to perform the license verification check on a server that you. Before you start adding license verification to your application, you need to set up your google play publishing account, your development environment, and any test accounts required to.

您的应用向 Google Play 发出请求，询问特定用户是否购买或下载了您的应用的合法副本。 Google Play 通过向您的应用发送一个 响应数据对象 来响应。 该对象是 Responsedata 类型，是.

After you've set up a publisher account and development environment (see setting up for licensing), you are ready to add license verification to your app with the license verification library. With google play licensing, your application can query google play at run time to obtain the licensing status for the current user, then allow or disallow further use as appropriate. When verifying that the user has purchased or downloaded a legitimate copy of your app from the google play store, it's best to perform the license verification check on a server that you.