在 Android M 上请求 SYSTEM 权限?

Ask for SYSTEM-permission on Android M?

Android M 上的新权限模型的描述没有说明系统权限会发生什么,通常只授予 /system/priv-app 下的应用程序:

Limited Permissions Granted at Install Time: When the user installs or updates the app, the system grants the app all permissions listed in the manifest that fall under PROTECTION_NORMAL. For example, alarm clock and internet permissions fall under PROTECTION_NORMAL, so they are automatically granted at install time. For more information about how normal permissions are handled, see Normal Permissions. The system may also grant the app signature permissions, as described in System components and signature permissions. The user is not prompted to grant any permissions at install time. User Grants Permissions at Run-Time: When the app requests a permission, the system shows a dialog to the user, then calls the app's callback function to notify it whether the user granted the permission.

有人可以说是否可以在 Android M 中向用户询问 "CAPTURE_REMOTE_SUBMIX" 左右的系统权限,即使没有作为系统应用程序安装?

the table of permissions that are affected by the runtime permission system中没有列出系统权限。