notifyChildrenChanged - mark which children changed so that browsers can reload specific items only

Hello,

MediaBrowserServiceCompat has notifyChildrenChanged takes a bundle that can be used to specify the page that the changed children belongs to.

fun notifySpecificPageChanged(parentId: String, page: Int, pageSize: Int) {
        val options = Bundle().apply {
            putInt(MediaBrowserCompat.EXTRA_PAGE, page)
            putInt(MediaBrowserCompat.EXTRA_PAGE_SIZE, pageSize)
        }

        notifyChildrenChanged(parentId, options)
    }

This bundle is used in MediaBrowserCompatUtils.hasDuplicatedItems to decide when not to notify based on active subscribed page from connected browsers.

void notifyChildrenChangedForCompatOnHandler(
        ConnectionRecord connection, String parentId, @Nullable Bundle options) {
      List<Pair<@NullableType IBinder, @NullableType Bundle>> callbackList =
          connection.subscriptions.get(parentId);
      if (callbackList != null) {
        for (Pair<@NullableType IBinder, @NullableType Bundle> callback : callbackList) {
          if (MediaBrowserCompatUtils.hasDuplicatedItems(options, callback.second)) {
            performLoadChildren(parentId, connection, callback.second, options);
          }
        }
      }
    }

However, it is possible that multiple clients could have used different page configurations. How to notify only the applicable ones? Does the library have any support or does MediaBrowserServiceCompat have to track and notify accordingly?

notifyChildrenChanged() EXTRA_PAGE (0) and EXTRA_PAGE_SIZE (100)

                          ┌─────────────────────────────────┐
                          │         SERVICE                 │
                          │                                 │
                          │   Data: [0, 1, 2, ... 999]      │
                          │                                 │
                          │   ⚡ Item 75 changed            │
                          │                                 │
                          │                                 │
                          └───────────┬─────────────────────┘
                                      │
                    ┌─────────────────┼─────────────────┐
                    │                 │                 │
                    ▼                 ▼                 ▼
     ┌──────────────────┐  ┌──────────────────┐  ┌──────────────────┐
     │  BROWSER A       │  │  BROWSER B       │  │  BROWSER C       │
     │                  │  │                  │  │                  │
     │  Page: 0         │  │  Page: 0         │  │  Page: 0         │
     │  Size: 100       │  │  Size: 50        │  │  Size: 200       │
     │                  │  │                  │  │                  │
     │  Subscribed to:  │  │  Subscribed to:  │  │  Subscribed to:  │
     │  items [0-99]    │  │  items [0-49]    │  │  items [0-199]   │
     │                  │  │                  │  │                  │
     └──────────────────┘  └──────────────────┘  └──────────────────┘