Fcm 集成得到异常
Fcm integration getting the exception
我正在处理 FCM 集成，但得到 java.lang.ClassNotFoundException: Didn't find class "service.MyFirebaseMessagingService" on path: DexPathList[[zip file "/data/app/com.rk.servicepractise-2/base.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]]
我已经搜索过了，但还没有找到合适的解决方案，请检查下面的代码，让我知道我哪里做错了？
请检查我的 classes 和 manifest 文件 gradle，请帮我解决这个问题。
我的第一个 class 即 MyFirebaseInstanceIDService 扩展了 FirebaseInstanceIdService class
public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
private static final String TAG = "MyFirebaseIIDService";
@Override
public void onTokenRefresh() {
//Getting registration token
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
//Displaying token on logcat
Log.d(TAG, "Refreshed token: " + refreshedToken);
}
private void sendRegistrationToServer(String token) {
//You can implement this method to store the token on your server
//Not required for current project
}
}
还有一个 class 用于扩展 FirebaseMessagingService class 的 Fcm 如下：-
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyFirebaseMsgService";
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
//Displaying data in log
//It is optional
Log.d(TAG, "From: " + remoteMessage.getFrom());
Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody());
//Calling method to generate notification
sendNotification(remoteMessage.getNotification().getBody());
}
//This method is only generating push notification
//It is same as we did in earlier posts
private void sendNotification(String messageBody) {
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle("Firebase Push Notification")
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0, notificationBuilder.build());
}
}
下面是我的清单文件条目 Fcm
<application>
.
.
.
.
<service
android:name="com.rk.servicepractise.service.MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
<service
android:name="com.rk.servicepractise.service.MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
</application>
我正在使用的 gradle 如下 Module:app:-
apply plugin: 'com.android.application'
android {
.
.
.
.
.
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:design:23.1.1'
compile 'com.google.firebase:firebase-messaging:9.8.0'
}
apply plugin: 'com.google.gms.google-services'
build.gradle 敌人 Project:ProjectName
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.5.0'
classpath 'com.google.gms:google-services:3.0.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
下面是我得到的 Exception：-
java.lang.RuntimeException: Unable to instantiate service service.MyFirebaseInstanceIDService: java.lang.ClassNotFoundException: Didn't find class "service.MyFirebaseInstanceIDService" on path: DexPathList[[zip file "/data/app/com.rk.servicepractise-1/base.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]]
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2779)
at android.app.ActivityThread.access00(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1404)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
Caused by: java.lang.ClassNotFoundException: Didn't find class "service.MyFirebaseInstanceIDService" on path: DexPathList[[zip file "/data/app/com.rk.servicepractise-1/base.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2776)
at android.app.ActivityThread.access00(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1404)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
Suppressed: java.lang.ClassNotFoundException: service.MyFirebaseInstanceIDService
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
已编辑 每当您遇到同样的问题时请遵循此 link 谢谢 @Marcin Orlowski ...Link:-Click here
只需在 Mainfest 文件中的 Service 之前添加点 (.)。
换句话说，下面的技巧：
<service android:name=".service.MyFirebaseMessagingService">
为了它的价值，我通过将我的 FirebaseMessagingService 侦听器 class 移动到根包文件夹中解决了这个问题。我正在使用 android:name=".fcm.FCMListenerService"，每当设备收到通知时，它就会如上所述一直崩溃。将它移动到它开始工作的根包文件夹，即 android:name=".FCMListenerService"。
更新：我将我的服务移回 fcm 文件夹并且它继续工作，所以这不是答案。然而，它确实做了一些让事情变得生动的事情，所以它可能值得一试（我在这个问题上争论了几个小时）。
在我的例子中，我不得不更换
<service android:name="MyFirebaseMessagingService" android:exported="false">
和
<service android:name="com.google.firebase.messaging.FirebaseMessagingService">
我遇到了同样的错误，并通过执行清理然后重建来修复它。我认为在项目被重新索引之前，文件没有被正确引用。
我正在处理 FCM 集成，但得到 java.lang.ClassNotFoundException: Didn't find class "service.MyFirebaseMessagingService" on path: DexPathList[[zip file "/data/app/com.rk.servicepractise-2/base.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]]
我已经搜索过了，但还没有找到合适的解决方案，请检查下面的代码，让我知道我哪里做错了？
请检查我的 classes 和 manifest 文件 gradle，请帮我解决这个问题。
我的第一个 class 即 MyFirebaseInstanceIDService 扩展了 FirebaseInstanceIdService class
public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
private static final String TAG = "MyFirebaseIIDService";
@Override
public void onTokenRefresh() {
//Getting registration token
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
//Displaying token on logcat
Log.d(TAG, "Refreshed token: " + refreshedToken);
}
private void sendRegistrationToServer(String token) {
//You can implement this method to store the token on your server
//Not required for current project
}
}
还有一个 class 用于扩展 FirebaseMessagingService class 的 Fcm 如下：-
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyFirebaseMsgService";
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
//Displaying data in log
//It is optional
Log.d(TAG, "From: " + remoteMessage.getFrom());
Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody());
//Calling method to generate notification
sendNotification(remoteMessage.getNotification().getBody());
}
//This method is only generating push notification
//It is same as we did in earlier posts
private void sendNotification(String messageBody) {
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle("Firebase Push Notification")
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0, notificationBuilder.build());
}
}
下面是我的清单文件条目 Fcm
<application>
.
.
.
.
<service
android:name="com.rk.servicepractise.service.MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
<service
android:name="com.rk.servicepractise.service.MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
</application>
我正在使用的 gradle 如下 Module:app:-
apply plugin: 'com.android.application'
android {
.
.
.
.
.
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:design:23.1.1'
compile 'com.google.firebase:firebase-messaging:9.8.0'
}
apply plugin: 'com.google.gms.google-services'
build.gradle 敌人 Project:ProjectName
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.5.0'
classpath 'com.google.gms:google-services:3.0.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
下面是我得到的 Exception：-
java.lang.RuntimeException: Unable to instantiate service service.MyFirebaseInstanceIDService: java.lang.ClassNotFoundException: Didn't find class "service.MyFirebaseInstanceIDService" on path: DexPathList[[zip file "/data/app/com.rk.servicepractise-1/base.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]]
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2779)
at android.app.ActivityThread.access00(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1404)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
Caused by: java.lang.ClassNotFoundException: Didn't find class "service.MyFirebaseInstanceIDService" on path: DexPathList[[zip file "/data/app/com.rk.servicepractise-1/base.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2776)
at android.app.ActivityThread.access00(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1404)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5292)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
Suppressed: java.lang.ClassNotFoundException: service.MyFirebaseInstanceIDService
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
已编辑 每当您遇到同样的问题时请遵循此 link 谢谢 @Marcin Orlowski ...Link:-Click here
只需在 Mainfest 文件中的 Service 之前添加点 (.)。
换句话说，下面的技巧：
<service android:name=".service.MyFirebaseMessagingService">
为了它的价值，我通过将我的 FirebaseMessagingService 侦听器 class 移动到根包文件夹中解决了这个问题。我正在使用 android:name=".fcm.FCMListenerService"，每当设备收到通知时，它就会如上所述一直崩溃。将它移动到它开始工作的根包文件夹，即 android:name=".FCMListenerService"。
更新：我将我的服务移回 fcm 文件夹并且它继续工作，所以这不是答案。然而，它确实做了一些让事情变得生动的事情，所以它可能值得一试（我在这个问题上争论了几个小时）。
在我的例子中，我不得不更换
<service android:name="MyFirebaseMessagingService" android:exported="false">
和
<service android:name="com.google.firebase.messaging.FirebaseMessagingService">
我遇到了同样的错误，并通过执行清理然后重建来修复它。我认为在项目被重新索引之前，文件没有被正确引用。