LibGDX和GoogleApiClient设置/集成(第一次) [英] LibGDX and the GoogleApiClient setup/integration (first time)
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问题描述
我一直想尝试添加Google Play，然后在Play商店中发布我的应用.我是通过实现Screen类在LibGDX中实现的，现在突然Google指南试图让我创建layout.xml并将大量新内容添加到我的应用中，只是为了获得一个愚蠢的登录"按钮. /p>
关于LibGDX项目，几乎不可能遵循此主题的Google文档，而且LibGDX社区论坛上没有太多帮助.
这不是那么困难，我显然错过了一些简单的事情！我相信我已经将GoogleApiClient和自己的界面设置为OK，并且在我现在需要的所有类中都有一个GoogleApiClient实例，而没有错误.
当我尝试制作愚蠢的布局并将其放置在我的应用程序的开头时出现错误(IE.我试图创建一个简单的layout.xml，仅当玩家单击登录后才具有登录"按钮-在应用程序中，将照常在LibGDX Android启动器中调用初始化...".
当前我收到此错误:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.megabro.flappyturd, PID: 3799
java.lang.RuntimeException: Unable to resume activity {com.megabro.flappyturd/com.megabro.flappyturd.AndroidLauncher}: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.badlogic.gdx.backends.android.AndroidInput.onResume()' on a null object reference
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3400)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3440)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2713)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.badlogic.gdx.backends.android.AndroidInput.onResume()' on a null object reference
at com.badlogic.gdx.backends.android.AndroidApplication.onResume(AndroidApplication.java:299)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1269)
at android.app.Activity.performResume(Activity.java:6766)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3377)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3440)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2713)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
我要在Pastebin上发布引起问题的整个代码，并将链接放在此处:
解决方案
希望您使用的是Intellij或Android Studio.
如果是，则将BaseGameUtils集成到您的项目中
public class MainActivity extends AndroidApplication implements GameHelperListener, ActionResolver {
private GameHelper gameHelper;
@Override
public void onCreate (Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initialize(new TutorialLibgdxGameservices(this), false);
if (gameHelper == null) {
gameHelper = new GameHelper(this, GameHelper.CLIENT_GAMES);
gameHelper.enableDebugLog(true);
}
gameHelper.setup(this);
}
@Override
public void onStart(){
super.onStart();
gameHelper.onStart(this);
}
@Override
public void onStop(){
super.onStop();
gameHelper.onStop();
}
@Override
public void onActivityResult(int request, int response, Intent data) {
super.onActivityResult(request, response, data);
gameHelper.onActivityResult(request, response, data);
}
@Override
public boolean getSignedInGPGS() {
return gameHelper.isSignedIn();
}
@Override
public void loginGPGS() {
try {
runOnUiThread(new Runnable(){
public void run() {
gameHelper.beginUserInitiatedSignIn();
}
});
} catch (final Exception ex) {
}
}
@Override
public void submitScoreGPGS(int score) {
Games.Leaderboards.submitScore(gameHelper.getApiClient(), "CgkI6574wJUXEAIQBw", score);
}
@Override
public void unlockAchievementGPGS(String achievementId) {
Games.Achievements.unlock(gameHelper.getApiClient(), achievementId);
}
@Override
public void getLeaderboardGPGS() {
if (gameHelper.isSignedIn()) {
startActivityForResult(Games.Leaderboards.getLeaderboardIntent(gameHelper.getApiClient(), "CgkI6574wJUXEAIQBw"), 100);
}
else if (!gameHelper.isConnecting()) {
loginGPGS();
}
}
@Override
public void getAchievementsGPGS() {
if (gameHelper.isSignedIn()) {
startActivityForResult(Games.Achievements.getAchievementsIntent(gameHelper.getApiClient()), 101);
}
else if (!gameHelper.isConnecting()) {
loginGPGS();
}
}
@Override
public void onSignInFailed() {
}
@Override
public void onSignInSucceeded() {
}
}
并将ActionResolver保留在核心模块中以进行接口.
public interface ActionResolver {
public boolean getSignedInGPGS();
public void loginGPGS();
public void submitScoreGPGS(int score);
public void unlockAchievementGPGS(String achievementId);
public void getLeaderboardGPGS();
public void getAchievementsGPGS();
}
I'm stuck trying to add Google Play and then release my app on the Play Store. I made it in LibGDX by implementing the Screen class and now all of a sudden the Google guides are trying to make me create layout.xml and add loads of new stuff into my app simply to get a silly "sign-in" button.
The Google documentation on this subject is almost impossible to follow with a LibGDX project, and there is not much help on the LibGDX community forum.
This cannot be that difficult, I have obviously missed something simple! I believe that I have the GoogleApiClient and my own interface set up OK, and I have an instance of GoogleApiClient inside all of my classes that need it now, without errors.
The error comes when I try to make the stupid layout and have this at the beginning of my app (IE. I tried to create a simple layout.xml that just has the Sign-In button only, once the player clicks sign-in the app would start by calling "initialize..." inside the LibGDX Android Launcher as usual.
Currently I get this error:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.megabro.flappyturd, PID: 3799
java.lang.RuntimeException: Unable to resume activity {com.megabro.flappyturd/com.megabro.flappyturd.AndroidLauncher}: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.badlogic.gdx.backends.android.AndroidInput.onResume()' on a null object reference
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3400)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3440)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2713)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.badlogic.gdx.backends.android.AndroidInput.onResume()' on a null object reference
at com.badlogic.gdx.backends.android.AndroidApplication.onResume(AndroidApplication.java:299)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1269)
at android.app.Activity.performResume(Activity.java:6766)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3377)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3440)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2713)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
I'm posting the whole code that is causing issue on Pastebin, will put link here:
解决方案
Hopefully you are using Intellij or Android Studio.
If yes integrate BaseGameUtils in your project
public class MainActivity extends AndroidApplication implements GameHelperListener, ActionResolver {
private GameHelper gameHelper;
@Override
public void onCreate (Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initialize(new TutorialLibgdxGameservices(this), false);
if (gameHelper == null) {
gameHelper = new GameHelper(this, GameHelper.CLIENT_GAMES);
gameHelper.enableDebugLog(true);
}
gameHelper.setup(this);
}
@Override
public void onStart(){
super.onStart();
gameHelper.onStart(this);
}
@Override
public void onStop(){
super.onStop();
gameHelper.onStop();
}
@Override
public void onActivityResult(int request, int response, Intent data) {
super.onActivityResult(request, response, data);
gameHelper.onActivityResult(request, response, data);
}
@Override
public boolean getSignedInGPGS() {
return gameHelper.isSignedIn();
}
@Override
public void loginGPGS() {
try {
runOnUiThread(new Runnable(){
public void run() {
gameHelper.beginUserInitiatedSignIn();
}
});
} catch (final Exception ex) {
}
}
@Override
public void submitScoreGPGS(int score) {
Games.Leaderboards.submitScore(gameHelper.getApiClient(), "CgkI6574wJUXEAIQBw", score);
}
@Override
public void unlockAchievementGPGS(String achievementId) {
Games.Achievements.unlock(gameHelper.getApiClient(), achievementId);
}
@Override
public void getLeaderboardGPGS() {
if (gameHelper.isSignedIn()) {
startActivityForResult(Games.Leaderboards.getLeaderboardIntent(gameHelper.getApiClient(), "CgkI6574wJUXEAIQBw"), 100);
}
else if (!gameHelper.isConnecting()) {
loginGPGS();
}
}
@Override
public void getAchievementsGPGS() {
if (gameHelper.isSignedIn()) {
startActivityForResult(Games.Achievements.getAchievementsIntent(gameHelper.getApiClient()), 101);
}
else if (!gameHelper.isConnecting()) {
loginGPGS();
}
}
@Override
public void onSignInFailed() {
}
@Override
public void onSignInSucceeded() {
}
}
And keep ActionResolver in core module for interfacing.
public interface ActionResolver {
public boolean getSignedInGPGS();
public void loginGPGS();
public void submitScoreGPGS(int score);
public void unlockAchievementGPGS(String achievementId);
public void getLeaderboardGPGS();
public void getAchievementsGPGS();
}
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