由于setText（），Android Studio中的Null Pointer异常

Question

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.GridView.setAdapter(android.widget.ListAdapter)' on a null object reference
        at com.shoppingpoint.shoppingpoint.HomePageAdapter$GridProductViewHolder.SetGridProductLayout(HomePageAdapter.java:286)
        at com.shoppingpoint.shoppingpoint.HomePageAdapter$GridProductViewHolder.access$200(HomePageAdapter.java:272)
        at com.shoppingpoint.shoppingpoint.HomePageAdapter.onBindViewHolder(HomePageAdapter.java:112)
        at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6781)
        at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6823)
        at android.support.v7.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:5752)
        at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6019)
        at android.support.v7.widget.GapWorker.prefetchPositionWithDeadline(GapWorker.java:286)
        at android.support.v7.widget.GapWorker.flushTaskWithDeadline(GapWorker.java:343)
        at android.support.v7.widget.GapWorker.flushTasksWithDeadline(GapWorker.java:359)
        at android.support.v7.widget.GapWorker.prefetch(GapWorker.java:366)
        at android.support.v7.widget.GapWorker.run(GapWorker.java:397)
        at android.os.Handler.handleCallback(Handler.java:794)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:173)
        at android.app.ActivityThread.main(ActivityThread.java:6634)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:822)
2019-05-07 13:14:41.001 20863-20863/com.shoppingpoint.shoppingpoint I/Process: Sending signal. PID: 20863 SIG: 9

rivate void SetGridProductLayout(List<HorizontalProductScrollModel> horizontalProductScrollModelList,String title){
            gridLayoutTitle.setText(title);
            gridView.setAdapter(new GridProductLayoutAdapter(horizontalProductScrollModelList));
        }

我希望它将标题设置为textView版面的GridView。