Question

我的RecyclerView布局中有两个按钮，其中包含ID button1和button2。

这是我的RecyclerView适配器：

public class DataAdapter extends RecyclerView.Adapter<DataAdapter.ViewHolder> {

    private Context context;

    private List<Data> dataList;

    public DataAdapter(Context context, List<Data> dataList) {
        this.context = context;
        this.dataList = dataList;
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {
        public Data data;

        public Button button1, button2;

        public ViewHolder(View v) {
            super(v);

            button1 = (Button) v.findViewById(R.id.button1);
            button2 = (Button) v.findViewById(R.id.button2);
        }

        public void setData(Data data) {
            this.data = data;
        }

        @Override
        public void onClick(View v) {
            int id = v.getId();

            if (id == R.id.button1) {
                clickButton(v);
            }
        }
    }

    @Override
    public DataAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.my_layout, parent, false);

        return new ViewHolder(v);
    }

    @Override
    public void onBindViewHolder(final ViewHolder holder, int position) {
        final Data data = dataList.get(position);

        holder.setData(data);

        //
    }

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

    public void clickButton(View v) {
        Button button1 = (Button) v;

        // HOW DO I GET BUTTON2?
    }
}

如何在button2方法中获得clickButton()，因为v仅返回button1的视图？

Answer 1

您可以从点击侦听器本身传递两个按钮，如 -

clickButton(button1, button2);

原因是button1，button2是ViewHolder类的成员变量，您实施了onClickListener。

Answer 2

您可以这样做：

    @Override
    public void onClick(View v) {
        v.setTag(v.getId())
        switch(v.getId()){
            case R.id.button1:
               clickButton(v);
               break;
            case R.id.button2:
               clickButton(v);
               break;
        }
    }

然后在clickButton方法中，只需获取标记并检查id以获取所需按钮并根据需要使用。

在onClick（）方法中获取另一个视图

2 个答案: