androidx 适配问题

[shenyongwang]

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean androidx.fragment.app.FragmentManagerImpl.isDestroyed()' on a null object reference at androidx.fragment.app.Fragment.performDetach(Fragment.java:2849) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1034) at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2659) at androidx.fragment.app.FragmentManagerImpl.dispatchDestroy(FragmentManagerImpl.java:2644) at androidx.fragment.app.FragmentController.dispatchDestroy(FragmentController.java:329) at androidx.fragment.app.FragmentActivity.onDestroy(FragmentActivity.java:366) at androidx.appcompat.app.AppCompatActivity.onDestroy(AppCompatActivity.java:242) at com.ess.filepicker.activity.SelectFileByScanActivity.onDestroy(SelectFileByScanActivity.java:122) at android.app.Activity.performDestroy(Activity.java:7266) at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1316) at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4767) 大佬 androidx 报上面的bug，望解决 万分感谢

[roomanl]

我改成androidx也出现这个问题了。BaseFileFragment文件onDetach方法里面childFragmentManager.set(this, null);注释即可解决