Question

我的RecyclerView包含单选按钮。当我单击一个时，我的以下实现应取消选择所有其他实现（notifyDataSetChanged()应该重新绑定所有行）。令人惊讶的是，onClick永远不会被触发：

public class NameAdapter extends RecyclerView.Adapter<NameAdapter.NameHolder> {

    private List<String> myNames;
    private int selectedPosition = -1;

    public NameAdapter(List<String> names) {
        myNames = names;
    }

    @Override public NameHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        Context context = parent.getContext();
        View view = LayoutInflater.from(context).inflate(R.layout.name_item, parent, false);
        return new NameHolder(view);
    }

    @Override public void onBindViewHolder(NameHolder holder, int position) {
        String name = myNames.get(position);
        holder.name.setText(name);
        holder.radioButton.setChecked(position == selectedPosition);
    }

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

    public class NameHolder extends RecyclerView.ViewHolder {

        private TextView    name;
        private RadioButton radioButton;

        public NameHolder(View itemView) {
            super(itemView);
            name = (TextView) itemView.findViewById(R.id.name);
            radioButton = (RadioButton) itemView.findViewById(R.id.radio_button);
            View.OnClickListener clickListener = new View.OnClickListener() {
                @Override public void onClick(View v) {
                    selectedPosition = getAdapterPosition();
                    notifyDataSetChanged();
                }
            };
            itemView.setOnClickListener(clickListener);
        }
    }
}

Answer 1

使用以下方法之一触发点击事件。

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();
    switch (id) {
    case R.id.action_dropdown1:
    .....
    return true;

    case R.id.action_dropdown2:
    .....
    return true;

     .....

     default:
      return super.onOptionsItemSelected(item);
     }
     }

OnClick不在RecyclerView适配器中触发

1 个答案: