public static boolean followFeedByUrl( final String feedUrl, final boolean isAskingToFollow, final ActionListener actionListener) { if (TextUtils.isEmpty(feedUrl)) { if (actionListener != null) { actionListener.onActionResult(false); } return false; } ReaderBlog blogInfo = ReaderBlogTable.getFeedInfo(ReaderBlogTable.getFeedIdFromUrl(feedUrl)); if (blogInfo != null) { return internalFollowFeed( blogInfo.feedId, blogInfo.getFeedUrl(), isAskingToFollow, actionListener); } updateFeedInfo( 0, feedUrl, new UpdateBlogInfoListener() { @Override public void onResult(ReaderBlog blogInfo) { if (blogInfo != null) { internalFollowFeed( blogInfo.feedId, blogInfo.getFeedUrl(), isAskingToFollow, actionListener); } else if (actionListener != null) { actionListener.onActionResult(false); } } }); return true; }