RecyclerView图像显示伪影

Question

我有一个带有CircularImageView的recyclerView，我正在使用Picasso将图像从URL加载到imageView中。我也添加了淡入淡出动画。 但是当我快速滚动时，recyclerView会显示先前图像的伪像。

这是我的适配器：

public class CastAdapter extends RecyclerView.Adapter<CastAdapter.CastHolder> {
private List<String> cast;
private Context mContext;

public CastAdapter(List<String> cast, Context mContext) {
    this.cast = cast;
    this.mContext = mContext;
}

@NonNull
@Override
public CastHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
    View view = LayoutInflater.from(mContext).inflate(R.layout.item_movie_cast, viewGroup, false);
    return new CastHolder(view);
}

@Override
public void onBindViewHolder(@NonNull CastHolder castHolder, int i) {
    String url = TMDB_IMAGE + "w185" + cast.get(i);
    Picasso.get().load(url).into(castHolder.target);
}

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

class CastHolder extends RecyclerView.ViewHolder {

    private CircleImageView imageView;
    private Animation fadeIn;
    Target target;

    CastHolder(@NonNull View itemView) {
        super(itemView);
        imageView = itemView.findViewById(R.id.cast);
        fadeIn = new AlphaAnimation(0, 1);
        fadeIn.setInterpolator(new DecelerateInterpolator());
        fadeIn.setDuration(200);
        fadeIn.reset();

        target = new Target() {
            @Override
            public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                imageView.setImageBitmap(bitmap);
                imageView.startAnimation(fadeIn);
            }

            @Override
            public void onBitmapFailed(Exception e, Drawable errorDrawable) {
            }

            @Override
            public void onPrepareLoad(Drawable placeHolderDrawable) {

            }
        };
    }
}

编辑：我尝试禁用该动画，并且工件仍然存在

Answer 1

您必须为淡入淡出的动画设置一些动画持续时间。由于在该动画结束之前进行滚动，因此即使滚动了它们也可以看到它们。

尝试减少动画。