Example usage for android.support.v4.media.browse MediaBrowserCompat unsubscribe

Introduction

In this page you can find the example usage for android.support.v4.media.browse MediaBrowserCompat unsubscribe.

Prototype

public void unsubscribe(@NonNull String parentId) 

Source Link

Document

Unsubscribes for changes to the children of the specified media id.

Usage

From source file:com.torrenttunes.android.ui.MediaBrowserFragment.java

@Override
public void onStop() {
    super.onStop();

    MediaBrowserCompat mediaBrowser = mMediaFragmentListener.getMediaBrowser();
    if (mediaBrowser != null && mediaBrowser.isConnected() && mMediaId != null) {
        mediaBrowser.unsubscribe(mMediaId);
    }/*from   www. j  a  v a 2s  .  c  o  m*/
    if (mMediaControllerProvider.getSupportMediaController() != null) {
        mMediaControllerProvider.getSupportMediaController().unregisterCallback(mMediaControllerCallback);
    }
    this.getActivity().unregisterReceiver(mConnectivityChangeReceiver);
}

---

From source file:com.torrenttunes.android.ui.MediaBrowserFragment.java

private void updateTitle() {
    if (MediaIDHelper.MEDIA_ID_ROOT.equals(mMediaId)) {
        mMediaFragmentListener.setToolbarTitle(null);
        return;/*from   ww w .  j  a v  a2  s  . c o m*/
    }

    final String parentId = MediaIDHelper.getParentMediaID(mMediaId);

    // MediaBrowserCompat doesn't provide metadata for a given mediaID, only for its children. Since
    // the mediaId contains the item's hierarchy, we know the item's parent mediaId and we can
    // fetch and iterate over it and find the proper MediaItem, from which we get the title,
    // This is temporary - a better solution (a method to get a mediaItem by its mediaID)
    // is being worked out in the platform and should be available soon.
    LogHelper.d(TAG, "on updateTitle: mediaId=", mMediaId, " parentID=", parentId);
    if (parentId != null) {
        MediaBrowserCompat mediaBrowser = mMediaFragmentListener.getMediaBrowser();
        LogHelper.d(TAG, "on updateTitle: mediaBrowser is ",
                mediaBrowser == null ? "null" : ("not null, connected=" + mediaBrowser.isConnected()));
        if (mediaBrowser != null && mediaBrowser.isConnected()) {
            // Unsubscribing is required to guarantee that we will get the initial values.
            // Otherwise, if there is another callback subscribed to this mediaID, mediaBrowser
            // will only call this callback when the media content change.
            mediaBrowser.unsubscribe(parentId);
            mediaBrowser.subscribe(parentId, new MediaBrowserCompat.SubscriptionCallback() {
                @Override
                public void onChildrenLoaded(String parentId, List<MediaBrowserCompat.MediaItem> children) {
                    LogHelper.d(TAG, "Got ", children.size(), " children for ", parentId, ". Looking for ",
                            mMediaId);
                    for (MediaBrowserCompat.MediaItem item : children) {
                        LogHelper.d(TAG, "child ", item.getMediaId());
                        if (item.getMediaId().equals(mMediaId)) {
                            if (mMediaFragmentListener != null) {
                                mMediaFragmentListener.setToolbarTitle(item.getDescription().getTitle());
                            }
                            return;
                        }
                    }
                    mMediaFragmentListener.getMediaBrowser().unsubscribe(parentId);
                }

                @Override
                public void onError(String id) {
                    super.onError(id);
                    LogHelper.d(TAG, "subscribe error: id=", id);
                }
            });
        }
    }
}

---