我的回收器视图上下文菜单不显示

Question

我哪里弄错了？ 我的上下文菜单没有显示，我已经在我的ViewHolder内移动了setOnCreateContextMenuListener和OnCreateContextMenu，但仍然没有显示。

public class ViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener {
ImageView imageview;
TextView textView;
public ViewHolder(View itemView) {
super(itemView);
imageview = itemView.findViewById(R.id.thumbImage);
textView = itemView.findViewById(R.id.tv_imageName);
itemView.setOnCreateContextMenuListener(getActivity());
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
String id = fArray.get(info.position).substring(fArray.get(info.position).lastIndexOf("/")+1).replace(".jpg", "");
if (v.getId()==R.id.gridView1) {
menu.setHeaderTitle(id);
EditName = id;
String[] menuItems = {"Edit"};
for (int i = 0; i<menuItems.length; i++) {
menu.add(Menu.NONE, i, i, menuItems[i]);
}
}
}
}

Answer 1

public class ViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener, MenuItem.OnMenuItemClickListener {
ImageView imageview;
TextView textView;
public ViewHolder(View itemView) {
super(itemView);
imageview = itemView.findViewById(R.id.thumbImage);
textView = itemView.findViewById(R.id.tv_imageName);
itemView.setOnCreateContextMenuListener(this);
}

@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
MenuItem star=menu.add(Menu.NONE,1,1,"Star");
MenuItem edit=menu.add(Menu.NONE,2,2,"Edit");
MenuItem delete=menu.add(Menu.NONE,3,3,"Delete");
star.setOnMenuItemClickListener(this);
edit.setOnMenuItemClickListener(this);
delete.setOnMenuItemClickListener(this);
}
@Override
public boolean onMenuItemClick(MenuItem item) {
int s1=list.get(getAdapterPosition()).getId();
switch (item.getItemId()){
case 1:
Toast.makeText(context, "pressed on star", Toast.LENGTH_SHORT).show();
break;
case 2:
Toast.makeText(context, "pressed on edit", Toast.LENGTH_SHORT).show();
break;
case 3:
Toast.makeText(context, "pressed on edit", Toast.LENGTH_SHORT).show();
break;
}
return true;
}
}

希望这对你有帮助。