如何在每个单选按钮中创建一个单选按钮的 Android RecyclerView，所有单选按钮都可以一起交互？

Question

当我选中单选按钮时，我无法在回收站视图的其他项目中取消选中其他单选按钮

单击单选按钮时无法到达其他项目视图位置

当我尝试取消选中其他单选按钮时，所有单选按钮都未选中..

覆盖乐趣 onBindViewHolder(holder: SearchCarViewHolder, position: Int) { holder.bind(list[position])

    holder.itemView.rb.setOnClickListener {
        if (list[position].id == 3) {
            Constants.carCleanOrFix = 0
            holder.itemView.rb.isChecked = false

        }
        if (list[position].id == 4) {
            Constants.carCleanOrFix = 1
            holder.itemView.rb.isChecked = false

        }

    }
}[enter image description here][1]

Answer 1

您将需要在 Adapter 类中有一个全局变量，并将单击项目的位置分配给该变量。

/**
 * Created by subrahmanyam on 28-01-2016, 04:02 PM.
 */
public class SampleAdapter extends RecyclerView.Adapter<SampleAdapter.ViewHolder> {

private final String[] list;
private int lastCheckedPosition = -1;

public SampleAdapter(String[] list) {
    this.list = list;
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = View.inflate(parent.getContext(), R.layout.sample_layout, null);
    ViewHolder holder = new ViewHolder(view);
    return holder;
}

@Override
public void onBindViewHolder(ViewHolder holder, int position) {
    holder.choiceName.setText(list[position]);
    holder.radioButton.setChecked(position == lastCheckedPosition);
}

@Override
public int getItemCount() {
    return list.length;
}

public class ViewHolder extends RecyclerView.ViewHolder {
    @Bind(R.id.choice_name)
    TextView choiceName;
    @Bind(R.id.choice_select)
    RadioButton radioButton;

    public ViewHolder(View itemView) {
        super(itemView);
        ButterKnife.bind(this, itemView);
        radioButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                lastCheckedPosition = getAdapterPosition();
 //because of this blinking problem occurs so 
 //i have a suggestion to add notifyDataSetChanged();
             //   notifyItemRangeChanged(0, list.length);//blink list problem
                  notifyDataSetChanged();

            }
        });
    }
}
}

代码参考： https : //stackoverflow.com/a/35060634/5846135

Answer 2

我解决了这个问题

var  selectedRBPosition = -1 // global variable for recyclerview adapter
override fun onBindViewHolder(holder: SearchCarViewHolder, position: Int) {
    holder.bind(list[position]) //for binding otherviews
    holder.itemView.rb.isChecked = selectedRBPosition ==position

    holder.itemView.rb.setOnClickListener {
        selectedRBPosition = holder.adapterPosition
        if (list[position].id == 3) {
            Constants.carCleanOrFix = 0
        }
        if (list[position].id == 4) {
            Constants.carCleanOrFix = 1
        }

        notifyDataSetChanged()
    }
}

感谢http://joshskeen.com/building-a-radiogroup-recyclerview/