SharedSidebar API: Display One Sidebar to Many Players

SharedSidebar extends Sidebar and shows content to multiple players simultaneously. It is identified by a string ID with per-player and bulk visibility control.

SharedSidebar extends Sidebar and can be shown to any number of players simultaneously. It is identified by a string ID. All base Sidebar methods also apply.

Identity

Method	Returns	Description
getId()	String	The unique identifier for this sidebar

Player registration

Method	Returns	Description
getPlayers()	Collection<UUID>	All registered player UUIDs
addPlayer(Player)	void	Register a player
removePlayer(Player)	void	Unregister a player

Visibility control

Method	Returns	Description
show()	void	Show to all registered players
showTo(UUID playerUUID)	void	Show to a specific player
showTo(UUID, SidebarShowEvent.Reason)	void	Show to player with explicit reason
hide()	void	Hide from all players
hideFrom(UUID playerUUID)	void	Hide from a specific player
getViewers()	Collection<UUID>	Players currently viewing the sidebar
isViewedBy(UUID)	boolean	Whether a player is currently viewing
isBeingViewedByAll()	boolean	Whether all registered players are viewing

getPlayers() returns all registered players; getViewers() returns only those actively seeing the sidebar.

Example

SharedSidebar shared = board.createSharedSidebar("lobby", "§a§lLobby");
shared.setLine(0, "§7Players: §f" + Bukkit.getOnlinePlayers().size());

for (Player p : Bukkit.getOnlinePlayers()) {
    board.addPlayer(p);
    shared.addPlayer(p);
}
shared.show();

// Later: hide from one player
shared.hideFrom(targetPlayer.getUniqueId());

// Check viewers
if (shared.isViewedBy(player.getUniqueId())) {
    // player can see the sidebar
}