我的安卓应用在生成Google Cloud Messaging (GCM) token时，今天开始崩溃。这在多个设备和Android版本上都发生了。我认为这可能与Google昨天在Google IO上宣布的新Firebase功能有关。
当这种情况发生时，我并没有在与GCM相关的代码周围工作，因此这是意外的。如果我从Android系统设置中卸载Google Play Services更新，则应用程序不再崩溃。但一旦重新安装最新版本后，该应用程序会再次每次崩溃。
FATAL EXCEPTION: IntentService[MyGCMRegistrationIntentService]
Process: <my process>, PID: 26036
java.lang.IncompatibleClassChangeError: The method 'java.io.File android.support.v4.content.ContextCompat.getNoBackupFilesDir(android.content.Context)' was expected to be of type virtual but instead was found to be of type direct (declaration of 'java.lang.reflect.ArtMethod' appears in /system/framework/core-libart.jar)
at com.google.android.gms.iid.zzd.zzeb(Unknown Source)
at com.google.android.gms.iid.zzd.<init>(Unknown Source)
at com.google.android.gms.iid.zzd.<init>(Unknown Source)
at com.google.android.gms.iid.InstanceID.zza(Unknown Source)
at com.google.android.gms.iid.InstanceID.getInstance(Unknown Source)
at <package>.MyGCMRegistrationIntentService.onHandleIntent(MyGCMRegistrationIntentService.java:<line number>);
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.os.HandlerThread.run(HandlerThread.java:61)
以下是我的注册服务：
public class MyGCMRegistrationIntentService extends IntentService
{
public static final String KEY_GCM_TOKEN = "gcm_token";
public static final String KEY_GCM_INSTANCE_ID = "gcm_instance_id";
private static final String NAME = MyGCMRegistrationIntentService.class.getSimpleName();
public MyGCMRegistrationIntentService()
{
super(NAME);
}
@Override
protected void onHandleIntent(final Intent intent)
{
try
{
final InstanceID instanceId = InstanceID.getInstance(this);
final String token = instanceId.getToken(getGCMSenderID(), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
final String instanceIdId = instanceId.getId();
sendTokenToMyServer(token, instanceIdId);
}
catch (final IOException e)
{
Timber.e(e, "Error getting GCM token.");
}
}
}
顶层Gradle构建文件:
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0'
classpath 'de.felixschulze.gradle:gradle-hockeyapp-plugin:3.3'
classpath 'com.android.tools.build:gradle:2.1.0'
classpath 'com.google.gms:google-services:2.1.0'
classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
}
}
allprojects {
repositories {
jcenter()
maven { url 'https://jitpack.io' }
}
}
处理与Google相关的应用级Gradle构建依赖：
dependencies {
compile 'com.android.support:appcompat-v7:23.3.0'
compile 'com.android.support:multidex:1.0.1'
compile 'com.android.support:design:23.3.0'
compile 'com.android.support:recyclerview-v7:23.3.0'
compile 'com.android.support:support-annotations:23.3.0'
compile 'com.android.support:support-v4:23.3.0'
compile 'com.android.support:support-v13:23.3.0'
compile 'com.google.android.gms:play-services-analytics:8.4.0'
compile 'com.google.android.gms:play-services-gcm:8.4.0'
...(and then the rest of my dependecies)
}
涉及与Google相关的库依赖关系（我知道这一切都很混乱，而且有些东西是冗余的，抱歉）：
dependencies {
compile 'com.android.support:appcompat-v7:23.3.0'
compile 'com.android.support:cardview-v7:23.3.0'
compile 'com.android.support:recyclerview-v7:23.3.0'
compile 'com.android.support:support-v4:23.3.0'
compile 'com.android.support:support-v13:23.3.0'
compile 'com.google.android.gms:play-services-location:8.4.0'
compile 'com.google.android.gms:play-services-analytics:8.4.0'
compile 'com.google.android.gms:play-services-gcm:8.4.0'
...(and then the rest of my dependecies)
}
我想升级版本可能会有所帮助，这是我升级的内容:
com.google.gms:google-services:2.1.0 -> com.google.gms:google-services:3.0.0
com.google.android.gms:play-services-XXX:8.4.0' -> com.google.android.gms:play-services-XXX:9.0.0
应用程序仍然崩溃，但是以不同的方式。首先，它记录了以下内容，但没有崩溃。
Firebase API initialization failure.
java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.google.firebase.FirebaseApp.zza(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.zzbu(Unknown Source)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1696)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1671)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source)
at android.app.ActivityThread.installProvider(ActivityThread.java:4999)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4594)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4534)
at android.app.ActivityThread.access$1500(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.IncompatibleClassChangeError: The method 'java.io.File android.support.v4.content.ContextCompat.getNoBackupFilesDir(android.content.Context)' was expected to be of type virtual but instead was found to be of type direct (declaration of 'java.lang.reflect.ArtMethod' appears in /system/framework/core-libart.jar)
at com.google.firebase.iid.zzg.zzeC(Unknown Source)
at com.google.firebase.iid.zzg.<init>(Unknown Source)
at com.google.firebase.iid.zzg.<init>(Unknown Source)
at com.google.firebase.iid.zzd.zzb(Unknown Source)
at com.google.firebase.iid.FirebaseInstanceId.getInstance(Unknown Source)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.google.firebase.FirebaseApp.zza(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.zzbu(Unknown Source)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1696)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1671)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source)
at android.app.ActivityThread.installProvider(ActivityThread.java:4999)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4594)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4534)
at android.app.ActivityThread.access$1500(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
在我在应用程序中移动，触发GCM注册后，我会得到与之前相同的堆栈以及在崩溃之前出现的这行内容：
E/FA: Task exception on worker thread: java.lang.IncompatibleClassChangeError: The method 'java.io.File android.support.v4.content.ContextCompat.getNoBackupFilesDir(android.content.Context)' was expected to be of type virtual but instead was found to be of type direct (declaration of 'java.lang.reflect.ArtMethod' appears in /system/framework/core-libart.jar): com.google.android.gms.measurement.internal.zzt.zzEd(Unknown Source)
