如何访问CardView上的弹出菜单

Question

我有一个recyclerview，其中recylerview项中有一个弹出菜单的图像（请参见下图），所以我在cardView上创建了一个带有edit和delete选项的弹出菜单，但是我尝试了以下代码，但是当我单击弹出菜单按钮，没有任何反应在我的NotesAdapter中，我想检索数据

这是我的item.xml文件

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
    android:layout_margin="5dp"
    app:cardCornerRadius="10dp"
    app:cardBackgroundColor="@android:color/holo_red_dark"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="90dp"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    <RelativeLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_marginTop="5dp"
        android:layout_height="wrap_content">

        <TextView
            android:layout_marginStart="5dp"
            android:textColor="@android:color/white"
            android:textSize="25sp"
            android:text="Title"
            android:id="@+id/title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"/>

        <ImageView
            android:id="@+id/menuIcon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_marginEnd="5dp"
            android:layout_marginTop="5dp"
            android:clickable="true"
            app:srcCompat="@drawable/ic_popup_menu" />

    </RelativeLayout>

    <TextView
        android:layout_margin="5dp"
        android:textSize="15sp"
        android:textColor="@android:color/white"
        android:text="Section"
        android:id="@+id/desc"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    </LinearLayout>
</androidx.cardview.widget.CardView>

这是我的NotesAdapter.java

public class NotesAdapter extends RecyclerView.Adapter<NotesAdapter.MyHolder>
{

    List<Listdata> noteslist;
    private Context context;
    public  NotesAdapter(List<Listdata> noteslist,Context context)
    {
        this.context=context;
        this.noteslist=noteslist;
    }


    @NonNull
    @Override
    public MyHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        View view= LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item,viewGroup,false);

        MyHolder myHolder=new MyHolder(view);
        return myHolder;
    }

    @Override
    public void onBindViewHolder(@NonNull MyHolder myHolder, int position) {
        final Listdata data=noteslist.get(position);
        myHolder.title.setText(data.getTitle());
        myHolder.desc.setText(data.getDesc());



    }

    @Override
    public int getItemCount() {
        return noteslist.size();
    }


    class  MyHolder extends RecyclerView.ViewHolder  {
        TextView title,desc;

        public MyHolder(@NonNull View itemView) {
            super(itemView);
            title=itemView.findViewById(R.id.title);
            desc=itemView.findViewById(R.id.desc);
            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Listdata listdata=noteslist.get(getAdapterPosition());
                    Intent i=new Intent(context, StreamActivity.class);
                    i.putExtra("id",listdata.id);
                    i.putExtra("title",listdata.title);
                    i.putExtra("desc",listdata.desc);
                    context.startActivity(i);
                }
            });

            ImageView menuIcon = itemView.findViewById(R.id.menuIcon);
            menuIcon.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    PopupMenu menu = new PopupMenu(v.getContext(), v);
                    menu.setGravity(Gravity.END);
                    menu.getMenu().add("Edit").setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                        @Override
                        public boolean onMenuItemClick(MenuItem item) {

                            Listdata listdata=noteslist.get(getAdapterPosition());
                            Intent i=new Intent(context, EditActivity.class);
                            i.putExtra("id",listdata.id);
                            i.putExtra("title",listdata.title);
                            i.putExtra("desc",listdata.desc);
                            context.startActivity(i);

                            return false;
                        }
                    });

                    menu.getMenu().add("Delete").setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                        @Override
                        public boolean onMenuItemClick(MenuItem item) {
                            return false;
                        }
                    });

                }
            });


        }


    }


}

Answer 1

嗨，我在您的代码中看到您只是在创建弹出菜单对象，但未显示要显示弹出菜单，请遵循以下代码。

Answer 2

尝试一下