MediaCollectionInfo
class MediaCollectionInfo
kotlin.Any | |
↳ | android.provider.CloudMediaProviderContract.MediaCollectionInfo |
Constants related to a media collection
Summary
Constants | |
---|---|
static String |
|
static String |
Name of the account that owns the media collection. |
static String |
Last |
static String |
Media collection identifier |
Constants
ACCOUNT_CONFIGURATION_INTENT
static val ACCOUNT_CONFIGURATION_INTENT: String
Intent
Intent to launch an Activity
to allow users configure their media collection account information like the account name.
Type: PARCELABLE
Value: "account_configuration_intent"
ACCOUNT_NAME
static val ACCOUNT_NAME: String
Name of the account that owns the media collection.
Type: STRING
Value: "account_name"
LAST_MEDIA_SYNC_GENERATION
static val LAST_MEDIA_SYNC_GENERATION: String
Last CloudMediaProviderContract.MediaColumns#SYNC_GENERATION
in the media collection including deleted media items.
Providers should associate a monotonically increasing sync generation to each media item change (insertion/deletion/update). This is useful for the OS to quickly identify exactly which media items have changed since a previous point in time.
Type: LONG
Value: "last_media_sync_generation"
MEDIA_COLLECTION_ID
static val MEDIA_COLLECTION_ID: String
Media collection identifier
The only requirement on the collection ID is uniqueness on a device.
This value will not be interpreted by the OS, however it will be used to check the validity of cached data and URI grants to client apps. Anytime the media or album ids get re-indexed, a new collection with a new and unique id should be created so that the OS can clear its cache and more importantly, revoke any URI grants to apps.
Apps are recommended to generate unique collection ids with, UUID#randomUUID
. This is preferred to using a simple monotonic sequence because the provider data could get cleared and it might have to re-index media items on the device without any history of its last ID. With random UUIDs, if data gets cleared, a new one can easily be generated safely.
Type: STRING
Value: "media_collection_id"