在Android中选择取消选择项的CarView Group

本文介绍了在Android中选择取消选择项的CarView Group的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

此处，将分支项目作为按钮在recycleview内的cardview上对齐.我需要在每个cardview上单击一次，并且颜色应该更改，但要点是，每次我单击另一张cardview之前，都应取消选择所选择的cardView.我什至没有实现这一点的逻辑.请提供一种简便的方法

Here the Branch items are aligned on a cardview within the recycleview as a button. I need to implement a click on each cardview and the color should change, but the point is that each time i click another cardView the selected cardView before should deselected. I don't even have a logic to implement this. Please help with an easy method

推荐答案

您可以尝试一下，

public class yourRecyclerViewAdapter extends RecyclerView.Adapter<yourRecyclerViewAdapter.yourViewHolder> { private static int lastCheckedPos = 0; ... ... public void onBindViewHolder(ViewHolder holder, final int position) { if(position == lastCheckedPos) { holder.cardView..setCardBackgroundColor(Color.RED); //Define the re } else { holder.cardView..setCardBackgroundColor(Color.WHITE); } holder.cardView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int prevPos = lastCheckedPos; lastCheckedPos = position; notifyItemChanged(prevPos); notifyItemChanged(lastCheckedPos); } }); } ... ... }

它可能会为实现提供基本逻辑

It may give a base logic on the implementation