Android 上的 Google 实时多人游戏
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【中文标题】Android 上的 Google 实时多人游戏【英文标题】：Google Real-time Multiplayer on Android 【发布时间】：2015-06-19 08:55:00 【问题描述】：我在使用 Google 实时多人游戏的应用时遇到问题。当您启动该应用程序时，它会崩溃。我在底部添加了崩溃日志...
我发现问题出在我打电话给mGoogleApiClient.connect();时
这是我的代码：
//(Your package here:)
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.Toast;
import com.birdprograms.multiplayer.BaseGameUtils.src.main.java.com.google.example.games.basegameutils.BaseGameUtils;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.games.Games;
import com.google.android.gms.games.GamesStatusCodes;
import com.google.android.gms.games.multiplayer.Invitation;
import com.google.android.gms.games.multiplayer.OnInvitationReceivedListener;
import com.google.android.gms.games.multiplayer.Participant;
import com.google.android.gms.games.multiplayer.realtime.RealTimeMessage;
import com.google.android.gms.games.multiplayer.realtime.RealTimeMessageReceivedListener;
import com.google.android.gms.games.multiplayer.realtime.Room;
import com.google.android.gms.games.multiplayer.realtime.RoomConfig;
import com.google.android.gms.games.multiplayer.realtime.RoomStatusUpdateListener;
import com.google.android.gms.games.multiplayer.realtime.RoomUpdateListener;
import com.google.android.gms.plus.Plus;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class MyActivity extends Activity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, View.OnClickListener, RealTimeMessageReceivedListener, RoomUpdateListener, RoomStatusUpdateListener, OnInvitationReceivedListener
private static final int RC_SIGN_IN = 9001;
private GoogleApiClient mGoogleApiClient;
private boolean mResolvingConnectionFailure = false;
private boolean mSignInClicked = false;
private boolean mAutoStartSignInFlow = true;
String mRoomId = null;
ArrayList<Participant> mParrticipants = null;
String mMyId = null;
byte[] mMsgBuf = new byte[2];
private TextView textView;
private TextView myscoretxt;
private TextView urscoretxt;
final static int[] CLICKALBES =
R.id.button,R.id.button2,R.id.button3
;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(Plus.API).addScope(Plus.SCOPE_PLUS_LOGIN)
.addApi(Games.API).addScope(Games.SCOPE_GAMES)
.build();
for (int id : CLICKALBES)
findViewById(id).setOnClickListener(this);
private void startQuickGame()
final int MIN_OPPONENTS = 1, MAX_OPPONENTS = 1;
Bundle autoMatchCriteria = RoomConfig.createAutoMatchCriteria(MIN_OPPONENTS,
MAX_OPPONENTS,0);
RoomConfig.Builder rtmConfigBuilder = RoomConfig.builder(this);
rtmConfigBuilder.setMessageReceivedListener(this);
rtmConfigBuilder.setRoomStatusUpdateListener(this);
rtmConfigBuilder.setAutoMatchCriteria(autoMatchCriteria);
changedisplay(1);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
resetGameVars();
Games.RealTimeMultiplayer.create(mGoogleApiClient,rtmConfigBuilder.build());
@Override
public void onActivityResult(int requestCode, int responseCode,Intent intent)
super.onActivityResult(requestCode,responseCode,intent);
switch(requestCode)
case RC_SIGN_IN:
mSignInClicked = false;
mResolvingConnectionFailure = false;
if(responseCode == RESULT_OK)
mGoogleApiClient.connect();
else
BaseGameUtils.showActivityResultError(this, requestCode, requestCode, R.string.signin_other_error);
break;
;
super.onActivityResult(requestCode,responseCode,intent);
@Override
public void onStop()
leaveRoom();
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
if (mGoogleApiClient == null || !mGoogleApiClient.isConnected())
changedisplay(0);
super.onStop();
@Override
public void onStart()
changedisplay(0);
if (mGoogleApiClient != null && mGoogleApiClient.isConnected())
else
mGoogleApiClient.connect();
super.onStart();
@Override
public boolean onKeyDown(int keyCode, KeyEvent e)
if (keyCode == KeyEvent.KEYCODE_BACK && findViewById(R.id.button).getVisibility() == View.VISIBLE)
leaveRoom();
return true;
return super.onKeyDown(keyCode, e);
void leaveRoom()
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
resetGameVars();
if(mRoomId != null)
Games.RealTimeMultiplayer.leave(mGoogleApiClient, this, mRoomId);
mRoomId = null;
findViewById(R.id.button).setVisibility(View.VISIBLE);
changedisplay(0);
textView = (TextView)findViewById(R.id.textView3);
myscoretxt = (TextView)findViewById(R.id.textView);
urscoretxt = (TextView)findViewById(R.id.textView2);
@Override
public void onClick(View view)
switch (view.getId())
case R.id.button:
mSignInClicked = true;
mGoogleApiClient.connect();
break;
case R.id.button2:
startQuickGame();
startGame(true);
break;
case R.id.button3:
scoreOnePoint();
@Override
public void onConnectionFailed(ConnectionResult connectionResult)
if (mResolvingConnectionFailure)
return;
if (mSignInClicked || mAutoStartSignInFlow)
mAutoStartSignInFlow = false;
mSignInClicked = false;
mResolvingConnectionFailure = BaseGameUtils.resolveConnectionFailure(this,mGoogleApiClient,connectionResult,RC_SIGN_IN,getString(R.string.signin_other_error));
changedisplay(1);
void updateRoom(Room room)
if(room != null)
mParrticipants = room.getParticipants();
if (mParrticipants != null)
updatePeerScoresDisplay();
@Override
public void onConnectedToRoom(Room room)
mRoomId = room.getRoomId();
mParrticipants = room.getParticipants();
mMyId = room.getParticipantId(Games.Players.getCurrentPlayerId(mGoogleApiClient));
@Override
public void onDisconnectedFromRoom(Room room)
mRoomId = null;
showGameError();
void showGameError()
BaseGameUtils.makeSimpleDialog(this,getString(R.string.game_problem));
changedisplay(0);
@Override
public void onJoinedRoom(int i, Room room)
if(i != GamesStatusCodes.STATUS_OK)
showGameError();
return;
@Override
public void onRoomConnected(int i, Room room)
if(i != GamesStatusCodes.STATUS_OK)
showGameError();
return;
updateRoom(room);
int mSecondsLeft = -1;
final static int GAME_DDURATION = 20;
int mScore = 0;
void resetGameVars()
mSecondsLeft = GAME_DDURATION;
mScore = 0;
mParticipantScore.clear();
mFinishedParticipants.clear();
void startGame(boolean multiplayer)
updateScoreDisplay();
broadcastScore(false);
changedisplay(1);
final Handler h = new Handler();
h.postDelayed(new Runnable()
@Override
public void run()
if (mSecondsLeft <= 0)
return;
gameTick();
h.postDelayed(this, 1000);
, 1000);
void gameTick()
if(mSecondsLeft > 0)
--mSecondsLeft;
textView.setText("Time Left: "+mSecondsLeft+" seconds");
if (mSecondsLeft <= 0)
changedisplay(0);
broadcastScore(true);
void scoreOnePoint()
if(mSecondsLeft <= 0)
return;
++mScore;
updateScoreDisplay();
updatePeerScoresDisplay();
broadcastScore(false);
Map<String, Integer> mParticipantScore = new HashMap<String, Integer>();
Set<String> mFinishedParticipants = new HashSet<String>();
@Override
public void onRealTimeMessageReceived(RealTimeMessage realTimeMessage)
byte[] buf = realTimeMessage.getMessageData();
String sender = realTimeMessage.getSenderParticipantId();
if(buf[0] == 'F' || buf[0] == 'U')
int existingScore = mParticipantScore.containsKey(sender) ?
mParticipantScore.get(sender) : 0;
int thisScore = (int) buf[1];
if(thisScore > existingScore)
mParticipantScore.put(sender, thisScore);
updatePeerScoresDisplay();
if((char) buf[0] == 'F')
mFinishedParticipants.add(realTimeMessage.getSenderParticipantId());
void broadcastScore(boolean finalScore)
mMsgBuf[0] = (byte) (finalScore ? 'F' : 'U');
mMsgBuf[1] = (byte) mScore;
for(Participant p : mParrticipants)
if(p.getParticipantId().equals(mMyId))
continue;
if (p.getStatus() != Participant.STATUS_JOINED)
continue;
if (finalScore)
Games.RealTimeMultiplayer.sendReliableMessage(mGoogleApiClient, null, mMsgBuf, mRoomId, p.getParticipantId());
else
Games.RealTimeMultiplayer.sendUnreliableMessage(mGoogleApiClient, mMsgBuf, mRoomId, p.getParticipantId());
void updateScoreDisplay()
myscoretxt.setText("Your Score: "+fomatScore(mScore));
String fomatScore(int i)
if(i<0)
i=0;
String s = String.valueOf(i);
return s.length() == 1 ? "00" + s : s.length() == 2 ? "0" + s : s;
void updatePeerScoresDisplay()
if(mRoomId != null)
for (Participant p : mParrticipants)
String pid = p.getParticipantId();
if(pid.equals(mMyId))
continue;
if (p.getStatus() != Participant.STATUS_JOINED)
continue;
int score = mParticipantScore.containsKey(pid) ? mParticipantScore.get(pid) : 0;
urscoretxt.setText("Opponents Score: "+fomatScore(score));
void changedisplay(int i)
if(i == 0)
findViewById(R.id.button).setVisibility(View.VISIBLE);
findViewById(R.id.button2).setVisibility(View.VISIBLE);
findViewById(R.id.button3).setVisibility(View.GONE);
findViewById(R.id.textView).setVisibility(View.GONE);
findViewById(R.id.textView2).setVisibility(View.GONE);
findViewById(R.id.textView3).setVisibility(View.GONE);
else
findViewById(R.id.button).setVisibility(View.GONE);
findViewById(R.id.button2).setVisibility(View.GONE);
findViewById(R.id.button3).setVisibility(View.VISIBLE);
findViewById(R.id.textView).setVisibility(View.VISIBLE);
findViewById(R.id.textView2).setVisibility(View.VISIBLE);
findViewById(R.id.textView3).setVisibility(View.VISIBLE);
为了读者，我删除了几个肯定不会导致问题的回调！ 如果您阅读了全文，那么感谢您的耐心等待。 :)
任何帮助或建议都会有所帮助。谢谢！
-内森
编辑
这是崩溃日志：
04-22 09:28:00.320 19247-19247/com.birdprograms.multiplayerdemo E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.birdprograms.multiplayerdemo, PID: 19247
java.lang.IllegalStateException: A fatal developer error has occurred. Check the logs for further information.
at com.google.android.gms.internal.jl$h.b(Unknown Source)
at com.google.android.gms.internal.jl$h.g(Unknown Source)
at com.google.android.gms.internal.jl$b.hy(Unknown Source)
at com.google.android.gms.internal.jl$a.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5323)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:825)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:641)
at dalvik.system.NativeStart.main(Native Method)
【问题讨论】：
我们不会通读代码墙，尤其是如果您无法向我们提供错误消息/日志... "没有 Google Play 服务...问题是当我调用 mGoogleApiClient.connect();"我想你回答了你自己的问题。您是否尝试过在安装了播放服务的设备上进行测试？ 是的，我已经在安装了 Google Play 服务的设备上进行了测试。mGoogleApiClient.connect(); 会导致应用在具有 Google Play 服务的普通设备上崩溃。
【参考方案1】：
您的清单丢失
<meta-data
android:name="com.google.android.gms.games.APP_ID"
android:value="@string/app_id" />
// this is required if your RequestedClients is using AppStateManager.SCOPE_APP_STATE
<meta-data
android:name="com.google.android.gms.games.appstate.APP_ID"
android:value="@string/app_id" />
【讨论】：
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