SessionParams

MODE_FULL_INSTALL

static val MODE_FULL_INSTALL: Int

Mode for an install session whose staged APKs should fully replace any existing APKs for the target app.

Value: 1

MODE_INHERIT_EXISTING

static val MODE_INHERIT_EXISTING: Int

Mode for an install session that should inherit any existing APKs for the target app, unless they have been explicitly overridden (based on split name) by the session. For example, this can be used to add one or more split APKs to an existing installation.

If there are no existing APKs for the target app, this behaves like MODE_FULL_INSTALL.

Value: 2

PERMISSION_STATE_DEFAULT

static val PERMISSION_STATE_DEFAULT: Int

Value is passed by the installer to setPermissionState(java.lang.String,int) to set the state of a permission. This indicates no preference by the installer, relying on the device's default policy to set the grant state of the permission.

Value: 0

PERMISSION_STATE_DENIED

static val PERMISSION_STATE_DENIED: Int

Value is passed by the installer to setPermissionState(java.lang.String,int) to set the state of a permission. This indicates the installers wants to deny the permission by default to the package being installed. The user and other actors in the system may still be able to grant the permission after installation.

Value: 2

PERMISSION_STATE_GRANTED

static val PERMISSION_STATE_GRANTED: Int

Value is passed by the installer to setPermissionState(java.lang.String,int) to set the state of a permission. This indicates the installers wants to automatically grant the permission to the package being installed. The user and other actors in the system may still be able to deny the permission after installation.

Value: 1

USER_ACTION_NOT_REQUIRED

static val USER_ACTION_NOT_REQUIRED: Int

This value is passed by the installer to SessionParams#setRequireUserAction(int) to indicate that user action is not required for this install.

Value: 2

USER_ACTION_REQUIRED

static val USER_ACTION_REQUIRED: Int

This value is passed by the installer to SessionParams#setRequireUserAction(int) to indicate that user action is required for this install.

Value: 1

USER_ACTION_UNSPECIFIED

static val USER_ACTION_UNSPECIFIED: Int

This value is passed by the installer to SessionParams#setRequireUserAction(int) to indicate that user action is unspecified for this install. requireUserAction also defaults to this value unless modified by SessionParams#setRequireUserAction(int)

Value: 0

SessionParams

SessionParams(mode: Int)

Construct parameters for a new package install session.

describeContents

open fun describeContents(): Int

setAppIcon

open fun setAppIcon(appIcon: Bitmap?): Unit

Optionally set an icon representing the app being installed. This should be roughly ActivityManager#getLauncherLargeIconSize() in both dimensions.

setAppLabel

open fun setAppLabel(appLabel: CharSequence?): Unit

Optionally set a label representing the app being installed. This value will be trimmed to the first 1000 characters.

setAppPackageName

open fun setAppPackageName(appPackageName: String?): Unit

Optionally set the package name of the app being installed. It's strongly recommended that you provide this value when known, so that observers can communicate installing apps to users.

If the APKs staged in the session aren't consistent with this package name, the install will fail. Regardless of this value, all APKs in the app must have the same package name.

setApplicationEnabledSettingPersistent

open fun setApplicationEnabledSettingPersistent(): Unit

Request to keep the original application enabled setting. This will prevent the application from being enabled if it was previously in a disabled state.

setAutoRevokePermissionsMode

open fun setAutoRevokePermissionsMode(shouldAutoRevoke: Boolean): Unit

Deprecated: No longer used

Sets whether permissions should be auto-revoked if this package is unused for an extended periodd of time. It's disabled by default but generally the installer should enable it for most packages, excluding only those where doing so might cause breakage that cannot be easily addressed by simply re-requesting the permission(s). If user explicitly enabled or disabled it via settings, this call is ignored.

setDontKillApp

open fun setDontKillApp(dontKillApp: Boolean): Unit

Requests that the system not kill any of the package's running processes as part of a SessionParams#MODE_INHERIT_EXISTING session in which splits being added. By default, all installs will result in the package's running processes being killed before the install completes.

setInstallLocation

open fun setInstallLocation(installLocation: Int): Unit

Provide value of PackageInfo#installLocation, which may be used to determine where the app will be staged. Defaults to PackageInfo#INSTALL_LOCATION_INTERNAL_ONLY.

setInstallReason

open fun setInstallReason(installReason: Int): Unit

Set the reason for installing this package.

The install reason should be a pre-defined integer. The behavior is undefined if other values are used.

setInstallScenario

open fun setInstallScenario(installScenario: Int): Unit

Sets the install scenario for this session, which describes the expected user journey.

setInstallerPackageName

open fun setInstallerPackageName(installerPackageName: String?): Unit

Set the installer package for the app. By default this is the app that created the PackageInstaller object. Note: Only applications with android.Manifest.permission#INSTALL_PACKAGES permission are allowed to set an installer that is not the caller's own installer package name, otherwise it will cause a SecurityException when creating the install session.

setMultiPackage

open fun setMultiPackage(): Unit

Set this session to be the parent of a multi-package install. A multi-package install session contains no APKs and only references other install sessions via ID. When a multi-package session is committed, all of its children are committed to the system in an atomic manner. If any children fail to install, all of them do, including the multi-package session.

setOriginatingUid

open fun setOriginatingUid(originatingUid: Int): Unit

Sets the UID that initiated the package installation. This is informational and may be used as a signal for anti-malware purposes.

setOriginatingUri

open fun setOriginatingUri(originatingUri: Uri?): Unit

Optionally set the URI where this package was downloaded from. This is informational and may be used as a signal for anti-malware purposes.

setPackageSource

open fun setPackageSource(packageSource: Int): Unit

Optionally indicate the package source of the app being installed. This is informational and may be used as a signal by the system. An installer should specify PACKAGE_SOURCE_OTHER if no other package source constant adequately reflects the source for this session. The default value is PACKAGE_SOURCE_UNSPECIFIED.

setPermissionState

open fun setPermissionState(
    permissionName: String, 
    state: Int
): PackageInstaller.SessionParams

Sets the state of permissions for the package at installation.

• Manifest.permission#USE_FULL_SCREEN_INTENT

setReferrerUri

open fun setReferrerUri(referrerUri: Uri?): Unit

Optionally set the URI that referred you to install this package. This is informational and may be used as a signal for anti-malware purposes.

setRequestUpdateOwnership

open fun setRequestUpdateOwnership(enable: Boolean): Unit

Optionally indicate whether the package being installed needs the update ownership enforcement. Once the update ownership enforcement is enabled, the other installers will need the user action to update the package even if the installers have been granted the INSTALL_PACKAGES permission. Default to false. The update ownership enforcement can only be enabled on initial installation. Set this to true on package update is a no-op. Note: To enable the update ownership enforcement, the installer must have the ENFORCE_UPDATE_OWNERSHIP permission.
Requires android.Manifest.permission#ENFORCE_UPDATE_OWNERSHIP

setRequireUserAction

open fun setRequireUserAction(requireUserAction: Int): Unit

Optionally indicate whether user action should be required when the session is committed.

Defaults to USER_ACTION_UNSPECIFIED unless otherwise set. When unspecified for installers using the REQUEST_INSTALL_PACKAGES permission will behave as if set to USER_ACTION_REQUIRED, and USER_ACTION_NOT_REQUIRED otherwise. When requireUserAction is set to USER_ACTION_REQUIRED, installers will receive a STATUS_PENDING_USER_ACTION callback once the session is committed, indicating that user action is required for the install to proceed.

For installers that have been granted the REQUEST_INSTALL_PACKAGES permission, user action will not be required when all of the following conditions are met:

• requireUserAction is set to USER_ACTION_NOT_REQUIRED.
• The app being installed targets:
  • API 29 or higher on Android S (API 31)
  • API 30 or higher on Android T (API 33)
  • API 31 or higher on Android U (API 34)
  • API 33 or higher on Android V (API 35)
• The installer is:
  • The update owner of an existing version of the app (in other words, this install session is an app update) if the update ownership enforcement is enabled.
  • The installer of record of an existing version of the app (in other words, this install session is an app update) if the update ownership enforcement isn't enabled.
  • Updating itself.
• The installer declares the UPDATE_PACKAGES_WITHOUT_USER_ACTION permission.

Note: The target API level requirement will advance in future Android versions. Session owners should always be prepared to handle STATUS_PENDING_USER_ACTION.

setSize

open fun setSize(sizeBytes: Long): Unit

Optionally indicate the total size (in bytes) of all APKs that will be delivered in this session. The system may use this to ensure enough disk space exists before proceeding, or to estimate container size for installations living on external storage.

setUnarchiveId

open fun setUnarchiveId(unarchiveId: Int): Unit

Used to set the unarchive ID received as part of an Intent#ACTION_UNARCHIVE_PACKAGE.

The ID should be retrieved from the unarchive intent and passed into the session that's being created to unarchive the app in question. Used to link the unarchive intent and the install session to disambiguate.

setWhitelistedRestrictedPermissions

open fun setWhitelistedRestrictedPermissions(permissions: MutableSet<String!>?): Unit

Sets which restricted permissions to be allowlisted for the app. Allowlisting is not granting the permissions, rather it allows the app to hold permissions which are otherwise restricted. Allowlisting a non restricted permission has no effect.

Permissions can be hard restricted which means that the app cannot hold them or soft restricted where the app can hold the permission but in a weaker form. Whether a permission is restricted or soft restricted depends on the permission declaration. Allowlisting a hard restricted permission allows the app to hold that permission and allowlisting a soft restricted permission allows the app to hold the permission in its full, unrestricted form.

Permissions can also be immutably restricted which means that the allowlist state of the permission can be determined only at install time and cannot be changed on updated or at a later point via the package manager APIs.

Initially, all restricted permissions are allowlisted but you can change which ones are allowlisted by calling this method or the corresponding ones on the PackageManager. Only soft or hard restricted permissions on the current Android version are supported and any invalid entries will be removed.

writeToParcel

open fun writeToParcel(
    dest: Parcel, 
    flags: Int
): Unit

CREATOR

static val CREATOR: Parcelable.Creator<PackageInstaller.SessionParams!>!

RESTRICTED_PERMISSIONS_ALL

static val RESTRICTED_PERMISSIONS_ALL: MutableSet<String!>

Special constant to refer to all restricted permissions.