firebase cloud messaging (fcm) 을 android 앱에 전송시 앱 튕김 현상 질문!
조회수 1939회
2019-11-07 16:01:18.615 22887-22887/com.example.api21test E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.api21test, PID: 22887
java.lang.RuntimeException: Unable to instantiate service com.example.api21test.MyFirebaseMessagingService: java.lang.ClassNotFoundException: Didn't find class "com.example.api21test.MyFirebaseMessagingService" on path: DexPathList[[zip file "/data/app/com.example.api21test-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.api21test-1/lib/arm64, /system/lib64, /vendor/lib64]]
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3248)
at android.app.ActivityThread.-wrap5(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1633)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:165)
at android.app.ActivityThread.main(ActivityThread.java:6375)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:802)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.api21test.MyFirebaseMessagingService" on path: DexPathList[[zip file "/data/app/com.example.api21test-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.api21test-1/lib/arm64, /system/lib64, /vendor/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:74)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3245)
at android.app.ActivityThread.-wrap5(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1633)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:165)
at android.app.ActivityThread.main(ActivityThread.java:6375)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:802)
package com.example.api21test;
import android.util.Log;
import com.google.firebase.messaging.FirebaseMessagingService;
public class MyFirebaseMessagingService extends FirebaseMessagingService{
@Override
public void onNewToken(String token) {
Log.d("새로 고침", "Refreshed token: " + token);
// If you want to send messages to this application instance or
// manage this apps subscriptions on the server side, send the
// Instance ID token to your app server.
sendRegistrationToServer(token);
}
private void sendRegistrationToServer(String token) {
// TODO: Implement this method to send token to your app server.
}
}
package com.example.api21test;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import com.google.firebase.messaging.FirebaseMessaging;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.InstanceIdResult;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FirebaseInstanceId.getInstance().getInstanceId()
.addOnCompleteListener(new OnCompleteListener<InstanceIdResult>() {
@Override
public void onComplete(@NonNull Task<InstanceIdResult> task) {
if (!task.isSuccessful()) {
Log.w("실패 : ", "getInstanceId failed", task.getException());
return;
}
// Get new Instance ID token
String token = task.getResult().getToken();
// Log and toast
String msg = getString(R.string.msg_token_fmt, token);
Log.d("성공 : ", msg);
Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();
}
});
FirebaseMessaging.getInstance().setAutoInitEnabled(true);
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.api21test">
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="@string/default_notification_channel_id" />
<meta-data
android:name="firebase_messaging_auto_init_enabled"
android:value="false" />
<meta-data
android:name="firebase_analytics_collection_enabled"
android:value="false" />
<activity android:name="com.example.api21test.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name="com.example.api21test.MyFirebaseMessagingService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
</application>
</manifest>
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.2'
classpath 'com.google.gms:google-services:4.3.2'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
google()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
buildToolsVersion "29.0.2"
defaultConfig {
applicationId "com.example.api21test"
minSdkVersion 21
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.android.support:support-core-utils:28.0.0'
implementation 'com.google.firebase:firebase-messaging:20.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}
apply plugin: 'com.google.gms.google-services'
순서대로 오류 MyFirebaseMessagingService, MainActivty, Manifest, build.gradle(project), build.gradle(module) 코드입니다
firebase에 등록한 앱에서 나온 토큰으로 개인메세지, 전체메세지를 보낼때 이와같은 오류가뜨면서 튕겨버립니다 어디부분이 잘못된걸까요?
-
(•́ ✖ •̀)
알 수 없는 사용자
1 답변
-
다 잘 되어있는것같은데 어느 다른부분이 문제일지도 모르겠네요.
... android:name="com.example.api21test.MyFirebaseMessagingService" android:enabled="true" android:exported="true"> ...
이렇게 고쳐서 해보시겠어요?
그리고 onMessageReceived() 도 오버라이드 해보시기 바랍니다.
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- com.google.firebase:firebase-core, onMessageReceived 두개 구현후 실행해도 똑같은 오류가뜨내요..ㅠ 안드로이드는 잘모르다보니 아주기초적인걸 실수한것같은 느낌이듭니다ㅠ 알 수 없는 사용자 2019.11.7 18:03
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