Android 实时多人游戏 - 房间创建失败

在开发Android实时多人游戏时，房间创建失败是一个常见的问题。当我们尝试创建游戏房间时，有时候会遇到一些错误，导致房间无法成功创建。这可能是由于各种原因引起的，比如网络连接问题、服务器繁忙等等。但不用担心，我们可以通过一些技巧和方法来解决这个问题。

java
public class GameRoom {
    private String roomId;
    private List players;
    public GameRoom(String roomId) {
        this.roomId = roomId;
        this.players = new ArrayList<>();
    }
    public void addPlayer(Player player) {
        players.add(player);
    }
    public void removePlayer(Player player) {
        players.remove(player);
    }
    public List getPlayers() {
        return players;
    }
}
public class Player {
    private String playerId;
    private String playerName;
    public Player(String playerId, String playerName) {
        this.playerId = playerId;
        this.playerName = playerName;
    }
    public String getPlayerId() {
        return playerId;
    }
    public String getPlayerName() {
        return playerName;
    }
}
public class GameRoomManager {
    private List gameRooms;
    public GameRoomManager() {
        gameRooms = new ArrayList<>();
    }
    public void createGameRoom(String roomId) {
        GameRoom gameRoom = new GameRoom(roomId);
        gameRooms.add(gameRoom);
    }
    public void joinGameRoom(String roomId, Player player) {
        GameRoom gameRoom = findGameRoom(roomId);
        if (gameRoom != null) {
            gameRoom.addPlayer(player);
        }
    }
    public void leaveGameRoom(String roomId, Player player) {
        GameRoom gameRoom = findGameRoom(roomId);
        if (gameRoom != null) {
            gameRoom.removePlayer(player);
        }
    }
    public List getPlayersInRoom(String roomId) {
        GameRoom gameRoom = findGameRoom(roomId);
        if (gameRoom != null) {
            return gameRoom.getPlayers();
        }
        return null;
    }
    private GameRoom findGameRoom(String roomId) {
        for (GameRoom gameRoom : gameRooms) {
            if (gameRoom.getRoomId().equals(roomId)) {
                return gameRoom;
            }
        }
        return null;
    }
}
public class MainActivity extends AppCompatActivity {
    private GameRoomManager gameRoomManager;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        gameRoomManager = new GameRoomManager();
        // 创建游戏房间
        gameRoomManager.createGameRoom("room1");
        // 加入游戏房间
        Player player1 = new Player("player1", "Player 1");
        gameRoomManager.joinGameRoom("room1", player1);
        Player player2 = new Player("player2", "Player 2");
        gameRoomManager.joinGameRoom("room1", player2);
        // 离开游戏房间
        gameRoomManager.leaveGameRoom("room1", player1);
        // 获取房间中的玩家列表
        List playersInRoom = gameRoomManager.getPlayersInRoom("room1");
        if (playersInRoom != null) {
            for (Player player : playersInRoom) {
                Log.d("Player", player.getPlayerName());
            }
        }
    }
}