Question

有时，在不同的手机（Android 7）上会出现这种崩溃：

Fatal Exception: java.lang.RuntimeException: Error receiving broadcast Intent { act=android.net.conn.CONNECTIVITY_CHANGE flg=0x4000010 (has extras) } in com.google.firebase.iid.zzae@3c68978
       at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:1178)
       at android.os.Handler.handleCallback(Handler.java:751)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6321)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.net.NetworkInfo.isConnected()' on a null object reference
       at com.google.firebase.iid.zzad.zzchr(Unknown Source)
       at com.google.firebase.iid.zzae.onReceive(Unknown Source)
       at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:1163)
       at android.os.Handler.handleCallback(Handler.java:751)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6321)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

你以前见过这个错误吗？我不知道如何纠正这个错误...

非常感谢你们！

Answer 1

该问题已在11.8.0中修复。请更新您的Firebase SDK版本。请参阅https://firebase.google.com/support/release-notes/android#20171218

Answer 2

final boolean zzchr() {
    ConnectivityManager var1;
    return (var1 = (ConnectivityManager)this.getContext().getSystemService("connectivity")) != null && var1.getActiveNetworkInfo() != null && var1.getActiveNetworkInfo().isConnected();
}

这是zzchr的代码。已经为getActiveNetworkInfo添加了空检查，但您仍然在获得NPE。

您可以查看NPE here的其他可能性。希望它有所帮助。

Android：NetworkInfo.isConnected（）上的NullPointerException与Firebase

2 个答案: