在 RecyclerView 本身而不是项目上设置 OnClickListener

我想设置一个OnClickListener on a RecyclerView, 不在其物品上以便当用户点击时触发点击事件RecyclerView（即使它是空的或装满了物品）。

• 我正在使用MVVM
• I tried mRecyclerView.setClickable(true)，不工作

我想要的是

mRecyclerView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // do something
    }
});

我的适配器类

public class TaskItemAdapter extends RecyclerView.Adapter<TaskItemAdapter.BaseItemAdapterViewHolder> {
    private static final String TAG = TaskItemAdapter.class.getSimpleName();
    private List<Task> mTaskList;
    private View.OnLongClickListener mOnLongClickListener;

    public TaskItemAdapter(List<Task> taskList, View.OnLongClickListener longClickListener) {
        mTaskList = taskList;
        mOnLongClickListener = longClickListener;
    }

    @NonNull
    @Override
    public BaseItemAdapterViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        if (parent instanceof RecyclerView) {
            int layoutId = R.layout.item_list_main;
            View view = LayoutInflater.from(parent.getContext()).inflate(layoutId, parent, false);
            view.setFocusable(true);
            return new BaseItemAdapterViewHolder(view);

        } else {
            throw new RuntimeException(TAG + "Not bound to recyclerView");
        }
    }

    @Override
    public void onBindViewHolder(@NonNull BaseItemAdapterViewHolder holder, int position) {
        Task task = mTaskList.get(position);
        holder.mItemTextView.setText("- " + task.getName());

        holder.itemView.setTag(task);
        holder.itemView.setOnLongClickListener(mOnLongClickListener);
    }

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

    public void loadItems(List<Task> taskList) {
        mTaskList = taskList;
        notifyDataSetChanged();
    }

    public class BaseItemAdapterViewHolder extends RecyclerView.ViewHolder {
        @BindView(R.id.item_textView)
        TextView mItemTextView;

        public BaseItemAdapterViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
        }
    }
}

mRecyclerView.addOnItemTouchListener(new RecyclerView.SimpleOnItemTouchListener() {
    @Override
    public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
        return true;
    }
});

然后处理你想要的MotionEvent类型即可。如果您不希望 RecylerView 用它做任何其他事情，则返回 true。