为 RecyclerView 项目创建选项菜单

Question

我一直在尝试按照以下教程将选项菜单集成到我的列表视图中：

[ https://www.simplifiedcoding.net/create-options-menu-recyclerview-item-tutorial/]

我已经能够让菜单图标出现在列表视图中的项目旁边，但我无法点击它来访问弹出菜单。我试图在我的public void onBindViewHolder(MyViewHolder holder, int position)方法中实现这一点。

我无法弄清楚为什么我无法执行 onClick。我已经发布了我的适配器代码

public class LeagueAdapter extends RecyclerView.Adapter<LeagueAdapter.MyViewHolder> {

    private Context context;

    private List<League> leaguesList;

    public TextView buttonViewOption;

    public void notifyDatasetChanged(List<League> newleagueslist) {

        leaguesList.clear();

        leaguesList.addAll(newleagueslist);

        super.notifyDataSetChanged();

    }

    public class MyViewHolder extends RecyclerView.ViewHolder {

        public TextView name;

        public TextView basescore;

        public TextView basescorepercentage;

        private TextView leagueAverage;

        public TextView id;

        public TextView timestamp;

        public TextView buttonViewOption;

        public MyViewHolder(View view) {

            super(view);

            id = view.findViewById( R.id.tvLeagueId);

            name = view.findViewById(R.id.tvSeriesName );

            basescore = view.findViewById(R.id.tvBaseScore );

            basescorepercentage = view.findViewById(R.id.tvBaseScorePercentage );

            leagueAverage = view.findViewById(R.id.tvLeagueAverage);

            timestamp = view.findViewById(R.id.timestamp);

            buttonViewOption = (TextView) itemView.findViewById(R.id.textViewOptions);

        }

    }

    public LeagueAdapter(Context context, List<League> leaguesList) {

        this.context = context;

        this.leaguesList = leaguesList;

    }

    @Override

    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View itemView = LayoutInflater.from(parent.getContext())

                .inflate(R.layout.listview_league, parent, false);

        return new MyViewHolder(itemView);

    }

 

Answer 1

您在 上初始化了错误的上下文public LeagueAdapter(Context context, List<League> leaguesList)，从 更改&nbsp;this.mCtx=mCtx&nbsp;为this.mCtx = context&nbsp;将解决问题。