Ravindra Kushwaha Ravindra Kushwaha - 27 days ago 6
Android Question

Fcm integration getting the exception



I am working on the

FCM
integration but getting the
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]]



I have searched it about but did not get the proper solution yet,Please check my code below and let me know where am i doing wrong?

Please check my
classes
and
manifest
file with
gradle
, Please help me to short out from this problem.

My first class that is the
MyFirebaseInstanceIDService
which extends 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
}
}


And one more class for the
Fcm
that extends
FirebaseMessagingService
class which are as follow:-


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());
}
}


And here below is my Manifest file entry for this
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>


And the
gradle
which i am using for it as follow 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 foe the
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
}
}


And the below is the Exception which i am getting:-

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.access$1900(ActivityThread.java:154)
at android.app.ActivityThread$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.access$1900(ActivityThread.java:154) 
at android.app.ActivityThread$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)

Answer

just add dot before service in your mainfest file.