public function __construct( $args ) {
		$bp = buddypress();

		$function_args = func_get_args();

		// Backward compatibility with old method of passing arguments.
		if ( !is_array( $args ) || count( $function_args ) > 1 ) {
			_deprecated_argument( __METHOD__, '1.6', sprintf( __( 'Arguments passed to %1$s should be in an associative array. See the inline documentation at %2$s for more details.', 'buddypress' ), __METHOD__, __FILE__ ) );

			$old_args_keys = array(
				0 => 'page',
				1 => 'per_page',
				2 => 'max',
				3 => 'include',
				4 => 'sort',
				5 => 'filter',
				6 => 'search_terms',
				7 => 'display_comments',
				8 => 'show_hidden',
				9 => 'exclude',
				10 => 'in',
				11 => 'spam',
				12 => 'page_arg'
			);

			$args = bp_core_parse_args_array( $old_args_keys, $function_args );
		}

		$defaults = array(
			'page'              => 1,
			'per_page'          => 20,
			'page_arg'          => 'acpage',
			'max'               => false,
			'fields'            => 'all',
			'count_total'       => false,
			'sort'              => false,
			'include'           => false,
			'exclude'           => false,
			'in'                => false,
			'filter'            => false,
			'scope'             => false,
			'search_terms'      => false,
			'meta_query'        => false,
			'date_query'        => false,
			'filter_query'      => false,
			'display_comments'  => 'threaded',
			'show_hidden'       => false,
			'spam'              => 'ham_only',
			'update_meta_cache' => true,
		);
		$r = wp_parse_args( $args, $defaults );
		extract( $r );

		$this->pag_arg  = sanitize_key( $r['page_arg'] );
		$this->pag_page = bp_sanitize_pagination_arg( $this->pag_arg, $r['page']     );
		$this->pag_num  = bp_sanitize_pagination_arg( 'num',          $r['per_page'] );

		// Check if post/comment replies are disabled.
		$this->disable_blogforum_replies = (bool) bp_core_get_root_option( 'bp-disable-blogforum-comments' );

		// Get an array of the logged in user's favorite activities.
		$this->my_favs = bp_get_user_meta( bp_loggedin_user_id(), 'bp_favorite_activities', true );

		// Fetch specific activity items based on ID's.
		if ( !empty( $include ) ) {
			$this->activities = bp_activity_get_specific( array(
				'activity_ids'      => explode( ',', $include ),
				'max'               => $max,
				'count_total'       => $count_total,
				'page'              => $this->pag_page,
				'per_page'          => $this->pag_num,
				'sort'              => $sort,
				'display_comments'  => $display_comments,
				'show_hidden'       => $show_hidden,
				'spam'              => $spam,
				'update_meta_cache' => $update_meta_cache,
			) );

		// Fetch all activity items.
		} else {
			$this->activities = bp_activity_get( array(
				'display_comments'  => $display_comments,
				'max'               => $max,
				'count_total'       => $count_total,
				'per_page'          => $this->pag_num,
				'page'              => $this->pag_page,
				'sort'              => $sort,
				'search_terms'      => $search_terms,
				'meta_query'        => $meta_query,
				'date_query'        => $date_query,
				'filter_query'      => $filter_query,
				'filter'            => $filter,
				'scope'             => $scope,
				'show_hidden'       => $show_hidden,
				'exclude'           => $exclude,
				'in'                => $in,
				'spam'              => $spam,
				'update_meta_cache' => $update_meta_cache,
			) );
		}

		// The total_activity_count property will be set only if a
		// 'count_total' query has taken place.
		if ( ! is_null( $this->activities['total'] ) ) {
			if ( ! $max || $max >= (int) $this->activities['total'] ) {
				$this->total_activity_count = (int) $this->activities['total'];
			} else {
				$this->total_activity_count = (int) $max;
			}
		}

		$this->has_more_items = $this->activities['has_more_items'];

		$this->activities = $this->activities['activities'];

		if ( $max ) {
			if ( $max >= count($this->activities) ) {
				$this->activity_count = count( $this->activities );
			} else {
				$this->activity_count = (int) $max;
			}
		} else {
			$this->activity_count = count( $this->activities );
		}

		$this->full_name = bp_get_displayed_user_fullname();

		// Fetch parent content for activity comments so we do not have to query in the loop.
		foreach ( (array) $this->activities as $activity ) {
			if ( 'activity_comment' != $activity->type ) {
				continue;
			}

			$parent_ids[] = $activity->item_id;
		}

		if ( !empty( $parent_ids ) ) {
			$activity_parents = bp_activity_get_specific( array( 'activity_ids' => $parent_ids ) );
		}

		if ( !empty( $activity_parents['activities'] ) ) {
			foreach( $activity_parents['activities'] as $parent ) {
				$this->activity_parents[$parent->id] = $parent;
			}

			unset( $activity_parents );
		}

		if ( (int) $this->total_activity_count && (int) $this->pag_num ) {
			$this->pag_links = paginate_links( array(
				'base'      => add_query_arg( $this->pag_arg, '%#%' ),
				'format'    => '',
				'total'     => ceil( (int) $this->total_activity_count / (int) $this->pag_num ),
				'current'   => (int) $this->pag_page,
				'prev_text' => _x( '←', 'Activity pagination previous text', 'buddypress' ),
				'next_text' => _x( '→', 'Activity pagination next text', 'buddypress' ),
				'mid_size'  => 1,
				'add_args'  => array(),
			) );
		}
	}