The PermissionController Mainline module contains privacy policies and the UI related to granting and managing permissions (for example, the policies and UI for granting and managing permissions).
The PermissionController module handles permission-related UI, logic, and roles to allow access for apps for specific purpose. It controls the following:
- Runtime permission granting (including granting to system apps)
- Runtime permission management (including grouping of permissions)
- Runtime permission usage tracking
Starting in Android 12, the framework and system server
are moved into the module to make
Role completely modular.
In Android 10, the Package Installer app is split into sections to enable the permissions logic to be updated. As an updatable Mainline module, PermissionController:
- Interacts with the framework only via stable @SystemApi (no @hide API usage).
- Handles permission-related intents with priority > 0.
- Exposes a mechanism for enabling OEMs to customize theming.
- Provides services to which the system and applications can bind, including role management, permission revocation, and basic permission information (for Settings).
- Supports auto-revoke for unused apps (new in Android 11).
In Android9, permission control is part of
Auto-revoke for unused apps
In Android 11, the PermissionsController module can automatically revoke runtime permissions for apps that haven't been used for an extended period of time. Apps targeting SDK 30 or higher have auto-revoke enabled by default, while apps targeting SDK 29 or lower have auto-revoke disabled by default. When enabled, auto-revoke affects all runtime permissions but exempts all pre-granted permissions, including policy- and system-fixed permissions and permissions granted by default or by role. For details, refer to Auto-reset permissions from unused apps.
The format of the PermissionController module differs between releases.
In Android 11 or higher, the PermissionController module is in APEX format and is updatable. The package name is
In Android 10, the PermissionController module is in APK format and isn't updatable. The package name is
In Android 12, the Permission
module code is moved from
platform/packages/apps/PackageInstaller project) and
frameworks/base/apex/permission (this is a subdirectory of the
The new project structure for
packages/modules/Permission is as follows:
- Files from
- PermissionController files from
OEMs can use the sample commands to help move their patches from the original project directories to the new project directory.
Move a patch from frameworks/base/apex/permission
root/frameworks/base/$ git format-patch -1 --relative=apex/permission commit --stdout > patch-file.txt
root/packages/modules/Permission$ git am -p2 patch-file.txt
Move a patch from packages/apps/PermissionController
root/packages/apps/PermissionController$ git format-patch -1 commit --stdout > patch-file.txt
root/packages/modules/Permission$ git am -p2 --directory=PermissionController patch-file.txt
OEMs can customize the permissions UI theme (colors, margins, fonts, and drawables) using runtime resource overlays (RROS).