All application permissions must be granted by the user at install time.

所有的应用许可都必须在应用安装的时候获得用户的准许。

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To access private data, the application must request and the user must grant to the application permissions to do so.

要访问私有数据，应用程序必须请求权限，并由用户对应用程序授予权限，才能进行访问。

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A permissions class with a static initializer provides a single location for declaring and configuring available application permissions.

带有静态初始化器的permissions类为声明和配置可用的应用程序权限提供单一位置。

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But more often, it is created or heavily tweaked by an IT administrator creating groups and permissions using the MDM application or service.

FORBES: How Many Kinds of Enterprise App Stores are There Today?