我创建了一个android库来实现fcm,以便在我的内部项目中使用,其中我实现了一个类来扩展firebasemessagingservice(.services.MyFirebaseMessagingService)和另一个类来扩展firebaseinstanceidservice(.services.MyFirebaseInstanceIDService)。
我在库中的androidmanifest.xml中定义如下:

<!-- [START firebase_service] -->
<service
    android:name=".services.MyFirebaseMessagingService"
    android:exported="true">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
</service>
<!-- [END firebase_service] -->
<!-- [START firebase_iid_service] -->
<service android:name=".services.MyFirebaseInstanceIDService">
    <intent-filter>
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
    </intent-filter>
</service>
<!-- [END firebase_iid_service] -->

当我将所有库源代码作为模块包含在我的应用程序中时,一切正常,但当我仅包含生成的aar时,我在运行应用程序时收到以下错误:
java.lang.RuntimeException: Unable to instantiate service com.example.lib.services.MyFirebaseMessagingService: java.lang.ClassNotFoundException: com.example.lib.services.MyFirebaseMessagingService
  at android.app.ActivityThread.handleCreateService(ActivityThread.java:2380)
  at android.app.ActivityThread.access$1600(ActivityThread.java:138)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1286)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:137)
  at android.app.ActivityThread.main(ActivityThread.java:4905)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:511)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
  at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.example.lib.services.MyFirebaseMessagingService
  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
  at android.app.ActivityThread.handleCreateService(ActivityThread.java:2377)
  at android.app.ActivityThread.access$1600(ActivityThread.java:138)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1286)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:137)
  at android.app.ActivityThread.main(ActivityThread.java:4905)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:511)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
  at dalvik.system.NativeStart.main(Native Method)

服务com.example.lib.services.myFireBaseInstanceIdService工作正常。
我需要用aar生成的库来做什么?

最佳答案

对于FCM,请执行以下步骤:
1-在main build.gradle(不在app文件夹中)中添加此行:

buildscript {
// ...
dependencies {
    // ...
    classpath 'com.google.gms:google-services:3.0.0'
}

2-在app/build.gradle中添加此行:
 apply plugin: 'com.android.application'

android {
  // ...
}

dependencies {
  // ...
  compile 'com.google.firebase:firebase-core:9.8.0'
  compile 'com.google.firebase:firebase-messaging:9.8.0'

  // Getting a "Could not find" error? Make sure you have
  // the latest Google Repository in the Android SDK manager
}

// ADD THIS AT THE BOTTOM
apply plugin: 'com.google.gms.google-services'

注意:你的sdk中“android支持库”最新。
希望能帮上忙

07-27 19:39