从其他活动发送实时消息

Question

我正在使用Google Play游戏服务进行我的实时多人游戏，但是我不能从另一个没有扩展com.google.example.games.basegameutils.BaseGameActivity.的活动中广播实时消息

我的扩展BaseGameActivity的活动(MainActivity)获得了一个静态实例，我从使用Andengine的其他活动(RaceActivity)中使用了该实例。首先，我实例化我的MainActivity，并在所有玩家都准备好时启动RaceActivity。然后，在我的RaceActivity中，我从我的MainActivity调用一个静态函数来广播一条消息，但它给了我这个异常：

06-02 14:55:04.585: E/AndroidRuntime(7961): FATAL EXCEPTION: UpdateThread
06-02 14:55:04.585: E/AndroidRuntime(7961): java.lang.IllegalStateException: Failed to send message, real-time match service is not connected.
06-02 14:55:04.585: E/AndroidRuntime(7961):     at android.os.Parcel.readException(Parcel.java:1433)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at android.os.Parcel.readException(Parcel.java:1379)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.google.android.gms.internal.bm$a$a.a(Unknown Source)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.google.android.gms.internal.bj.sendReliableRealTimeMessage(Unknown Source)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.google.android.gms.games.GamesClient.sendReliableRealTimeMessage(Unknown Source)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.game.superninjarun.structure.MainActivity.broadcastMessage(MainActivity.java:371)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.game.superninjarun.structure.GameScene.readyUp(GameScene.java:95)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.game.superninjarun.structure.GameScene.createScene(GameScene.java:42)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.game.superninjarun.structure.BaseScene.<init>(BaseScene.java:39)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.game.superninjarun.structure.GameScene.<init>(GameScene.java:25)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at com.game.superninjarun.structure.SceneManager$1.onTimePassed(SceneManager.java:109)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at org.andengine.engine.handler.timer.TimerHandler.onUpdate(TimerHandler.java:98)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at org.andengine.engine.handler.UpdateHandlerList.onUpdate(UpdateHandlerList.java:47)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at org.andengine.engine.Engine.onUpdateUpdateHandlers(Engine.java:597)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at org.andengine.engine.Engine.onUpdate(Engine.java:585)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at org.andengine.engine.Engine.onTickUpdate(Engine.java:548)
06-02 14:55:04.585: E/AndroidRuntime(7961):     at org.andengine.engine.Engine$UpdateThread.run(Engine.java:820)

有人知道什么是该死的实时比赛服务吗？我甚至在谷歌上都找不到...

Answer 1

最后，多亏了这个post on the andengine forum，我成功地合并了Andengine的BaseGameActivity和谷歌的BaseGameUtils。

我猜GamesClient类的特性只能在声明它的Acvitity中使用……