回收的recyclerview项目保留了旧的背景色 [英] recycled recyclerview item keeps the old background color

问题描述

我有一个回收站视图，并且在onClick(View view)内部，我正在将背景色更改为几乎透明的红色view.setBackgroundColor(Color.argb(64, 183, 28, 28)); 但是发生了一些奇怪的事情，当我向下滚动时，我看到尚未单击的项目的颜色已更改，我的猜测是，当回收该项目时，它仍保留该颜色.我想删除该颜色，但是在持有人的构造函数中删除它却不起作用，所以我的问题是我该如何处理?

I have a recycler view and inside the onClick(View view) i'm changing the background color to almost transparent red view.setBackgroundColor(Color.argb(64, 183, 28, 28)); but something weird is happening which is when I scroll down I see the color has changed for items that have not been clicked yet, my guess is when the item is recycled it is retaining the color. I want to remove that color but removing it inside the constructor for the holder is not working so my question is how do I go about that?

评论后，这是更详细的代码

after the comment this is more detailed code

public class GridHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

    public TextView Name;
    public ImageView Photo;
    public GridHolder(View itemView) {
        super(itemView);
        itemView.setOnClickListener(this);
               Name = (TextView) itemView.findViewById(R.id.name);
        Photo = (ImageView) itemView.findViewById(R.id.photo);
        itemView.setClickable(true);
    }

    @Override
    public void onClick(View view) {

            view.setBackgroundColor(Color.argb(64, 183, 28, 28));
        }
    }

推荐答案

在我看来，实现此目的的最简单方法是为RecyclerView中的每个项目赋予一个状态(布尔值)并根据该状态设置背景.这样，当您回收视图时，将绘制正确的背景.

The simplest way to achieve this in my opinion is to give each item in your RecyclerView a state (boolean) and set the background depending on the state. This way when you recycle the view, the correct background is drawn.

if(isClicked){
    itemView.setBackgroundColor(Color.RED);
}
else{
    itemView.setBackgroudnColor(Color.WHITE);
}

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