问题描述
我目前正在我的项目中设置Firebase(FCM)，并且当我运行混淆了R8的应用程序时遇到了问题，Firebase服务(FirebaseMessagingService)不再起作用.有没有人遇到过同样的问题?有解决办法吗?
I am currently working on setting up Firebase (FCM) in my project and have encountered a problem when I run my R8-obfuscated app, the Firebase service (FirebaseMessagingService) no longer works. Has anyone encountered the same problem? Any solution?
UPD :最后，我通过降级到
UPD: Finally I fixed it for FCM by downgrading to
com.google.firebase:firebase-messaging:15.0.0
现在正在使用一些不推荐使用的类，但是它可以工作.
There are some deprecated classes in use now but it works.
UPD2 :在使用最新版本的库运行混淆的应用程序时，我还注意到了日志中的警告:
UPD2:While running obfuscated app with the newest versions of libraries I also noticed warnings in the logs:
W/FA: Failed to retrieve Firebase Instance Id
这很可能是问题的根源.
This is most likely the root of the problem.
推荐答案
终于解决了这个问题，接下来的proguard规则对我来说是个窍门:
Finally got it fixed, next proguard rules did a trick for me:
# Firebase
-keep class com.google.android.gms.** { *; }
-keep class com.google.firebase.** { *; } // especially this one
这篇关于Firebase + Proguard/R8的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！