背景

當我在Android 7.0及以下手機執行啟動頁，進行Activity跳轉的時候，完美跳轉到對應的目標Activity。 但當在Android 8.0及以上手機進行Activity跳轉時，會爆如下錯誤：

 java.lang.SecurityException: Permission Denial: null asks to run as user 450 but is calling from user 0; this requires android.permission.INTERACT_ACROSS_USERS_FULL or android.permission.INTERACT_ACROSS_USERS
                                                             at android.os.Parcel.readException(Parcel.java:1942)
                                                             at android.os.Parcel.readException(Parcel.java:1888)
                                                             at android.view.autofill.IAutoFillManager$Stub$Proxy.addClient(IAutoFillManager.java:326)
                                                             at android.view.autofill.AutofillManager.ensureServiceClientAddedIfNeededLocked(AutofillManager.java:896)
                                                             at android.view.autofill.AutofillManager.notifyViewExited(AutofillManager.java:487)
                                                             at android.view.View.notifyEnterOrExitForAutoFillIfNeeded(View.java:6945)
                                                             at android.view.View.dispatchAttachedToWindow(View.java:17413)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3326)
                                                             at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1658)
                                                             at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1386)
                                                             at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6733)
                                                             at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
                                                             at android.view.Choreographer.doCallbacks(Choreographer.java:723)
                                                             at android.view.Choreographer.doFrame(Choreographer.java:658)
                                                             at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
                                                             at android.os.Handler.handleCallback(Handler.java:789)
                                                             at android.os.Handler.dispatchMessage(Handler.java:98)
 

常規解決方法

按StackOverFlow上面的方法增加許可權

<permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL" android:protectionLevel="signature"/>

發現並沒有什麼作用！！！！

我的解決方法

解決歷程

經過幾個小時的排查發現，當我的目標Activity繼承AppCompatActivity時 程式沒有問題。當目標Activity繼承我自己的BaseActivity(我這個BaseActivity最終也會繼承AppCompatActivity)時就會出現問題。

完美解決方法

我自己的BaseActivity裡面有一個用於獲取使用者ID的**public void getUserId()方法，就是這貨。 當你把這個方法改過名字（例如：getLocalUserId()）或者修改該getUserId()為private時，程式完美執行。 因此，可以知道這個getUserId()*是在原基類裡面有實現的。

最後，希望我的方法能幫助到各位小夥伴。Thx~