在recyclerview中滚动时背景颜色或图像在滚动吗？

我已经创建了一个您要完成的工作示例。您遇到的错误的根源主要是您不了解视图回收。我现在不打算向您解释整个过程，但是无论如何，下面是示例：

对于示例，我为每一行使用了这种布局：

<?xml version="1.0" encoding="utf-8"?><frameLayout    android:id="@+id/background"    xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="80dp">    <TextView        android:id="@+id/textView"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_gravity="center"/></frameLayout>

我使用了这个模型：

public class ExampleModel {    private final int mColor;    private final String mText;    public ExampleModel(int color, String text) {        mColor = color;        mText = text;    }    public int getColor() {        return mColor;    }    public String getText() {        return mText;    }}

这个视图持有者：

public class ExampleViewHolder extends RecyclerView.ViewHolder {    private final frameLayout mBackground;    private final TextView mTextView;    public ExampleViewHolder(View itemView) {        super(itemView);        mBackground = (frameLayout) itemView.findViewById(R.id.background);        mTextView = (TextView) itemView.findViewById(R.id.textView);    }    public void bind(ExampleModel model) {        mBackground.setBackgroundColor(model.getColor());        mTextView.setText(model.getText());    }}

如您所见，没有什么特别的，

Adapter

public class ExampleAdapter extends RecyclerView.Adapter<ExampleViewHolder> {    private final LayoutInflater mInflater;    private final List<ExampleModel> mModels;    public ExampleAdapter(Context context, List<ExampleModel> models) {        mInflater = LayoutInflater.from(context);        mModels = models;    }    @Override    public ExampleViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        final View itemView = mInflater.inflate(R.layout.item_example, parent, false);        return new ExampleViewHolder(itemView);    }    @Override    public void onBindViewHolder(ExampleViewHolder holder, int position) {        final ExampleModel model = mModels.get(position);        holder.bind(model);    }    @Override    public int getItemCount() {        return mModels.size();    }}

您可以像这样使用整个内容：

final Random mRandom = new Random(System.currentTimeMillis());@Overridepublic void onViewCreated(View view, @Nullable Bundle savedInstanceState) {    super.onViewCreated(view, savedInstanceState);    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));    final List<ExampleModel> models = new ArrayList<>();    for (int i = 0; i < 100; i++) {        final int randomColor = generateRandomPastelColor();        models.add(new ExampleModel(randomColor, String.valueOf(i)));    }    final ExampleAdapter adapter = new ExampleAdapter(getActivity(), models);    recyclerView.setAdapter(adapter);}public int generateRandomPastelColor() {    final int baseColor = Color.WHITE;    final int red = (Color.red(baseColor) + mRandom.nextInt(256)) / 2;    final int green = (Color.green(baseColor) + mRandom.nextInt(256)) / 2;    final int blue = (Color.blue(baseColor) + mRandom.nextInt(256)) / 2;    return Color.rgb(red, green, blue);}

这应该可以满足您的需求，您可以将其用作实现您的的示例

Adapter