NullPointerException: Attempt to read from field '******.databinding.FragmentDiaryListBinding.c' on a null object reference

[netexe]

2.0.3 版本，使用了 com.scwang.smart.refresh.header.MaterialHeader com.scwang.smart.refresh.footer.BallPulseFooter

` <com.scwang.smart.refresh.layout.SmartRefreshLayout android:id="@+id/refreshLayout" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginTop="@dimen/config_margin_6dp" app:srlEnableAutoLoadMore="true" app:srlEnableLoadMore="true">

    <com.scwang.smart.refresh.header.MaterialHeader
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:overScrollMode="never"
        tools:listitem="@layout/adapter_view_list_item" />

    <com.scwang.smart.refresh.footer.BallPulseFooter
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:srlAnimatingColor="@color/app_color_theme_7"/>

</com.scwang.smart.refresh.layout.SmartRefreshLayout>

`

10-27 17:03:24.920 19822 19822 E AndroidRuntime: java.lang.NullPointerException: Attempt to read from field 'com.scwang.smart.refresh.layout.SmartRefreshLayout com.example.databinding.FragmentDiaryListBinding.c' on a null object reference 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at com.example.fragment.note.DiaryListFragment.u0(DiaryListFragment.java:1) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at com.example.activity.MainActivity$1.onPageSelected(MainActivity.java:9) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at androidx.viewpager.widget.ViewPager.dispatchOnPageSelected(ViewPager.java:6) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:14) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at androidx.viewpager.widget.ViewPager.setCurrentItemInternal(ViewPager.java:1) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at androidx.viewpager.widget.ViewPager.onRestoreInstanceState(ViewPager.java:7) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.View.dispatchRestoreInstanceState(View.java:19876) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3880) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3886) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3886) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3886) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3886) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:3886) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.view.View.restoreHierarchyState(View.java:19854) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at com.android.internal.policy.PhoneWindow.restoreHierarchyState(PhoneWindow.java:2160) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.Activity.onRestoreInstanceState(Activity.java:1602) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.Activity.performRestoreInstanceState(Activity.java:1557) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1354) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3344) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2040) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:107) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.os.Looper.loop(Looper.java:224) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:7520) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539) 10-27 17:03:24.920 19822 19822 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)