ListView和RecyclerView列表点击变换状态

ListView和RecyclerView列表点击变换状态

  • ListView
  • RecyclerView

ListView

ListView和RecyclerView列表点击变换状态_第1张图片

   //条目点击
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                //点击位置-传给适配器
                listAdapter.change(i);
                Log.i("yu", "onItemClick: "+index);
                //适配器刷新
                listAdapter.notifyDataSetChanged();
            }
        });
 @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        ViewHolder holder=null;
        if (view==null) {
            holder=new ViewHolder();
            view=layoutInflater.inflate(R.layout.layout_list2,null);
            holder.textView=view.findViewById(R.id.two_list);
            view.setTag(holder);
        }else{
            holder= (ViewHolder) view.getTag();
        }
        holder.textView.setText(lists.get(i));


        if (index== i) {
            Log.i("yu", index+"被点击: ");
            view.setBackgroundColor(Color.BLUE);
            holder.textView.setTextColor(Color.RED);
        }else{
            view.setBackgroundColor(Color.WHITE);
            holder.textView.setTextColor(Color.BLACK);
        }

        return view;
    }
    
    public void change(int position){
        //更新点击位置
        if(position != index){
            index = position;
            notifyDataSetChanged();
        }
    }

RecyclerView

ListView和RecyclerView列表点击变换状态_第2张图片
适配器:

  @Override
    public void onBindViewHolder(@NonNull MyViewHolder holder, final int position) {

        holder.textView.setText(lists.get(position).getName());

        if(i== position){
            Toast.makeText(context, ""+lists.get(position), Toast.LENGTH_SHORT).show();
            holder.textView.setBackgroundResource(R.drawable.shape_yes);
            String s = "√ "+holder.textView.getText().toString();
            holder.textView.setText(s);
            holder.textView.setTextColor(Color.RED);
        }else{
            holder.textView.setBackgroundResource(R.drawable.shape_no);
            holder.textView.setTextColor(Color.BLACK);
        }

        //点击事件更新位置
        holder.textView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                i=position;
                notifyDataSetChanged();
            }
        });

    }

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