Android 调用notifyItemChanged（）时调用RecyclerView.Adapter onCreateViewHolder

我有一个简单的适配器，它看起来就像这样：

除此之外，数据项比字符串复杂得多

public class SimpleAdapter extends RecyclerView.Adapter<SimpleAdapter.TopicContentViewHolder> {

    private final Context mContext;
    private List<ModelTopic> mData;

    public void add(ModelTopic s,int position) {
        position = position == -1 ? getItemCount()  : position;
        mData.add(position, s);
        notifyItemInserted(position);
    }

    public void updateNightMode(boolean isNightMode) {
        if (mData.size() > 0) {
            mData.get(0).setNightMode(isNightMode);
            notifyItemChanged(0);
        }
    }

    static class TopicContentViewHolder extends RecyclerView.ViewHolder {

        @BindView(R.id.view_pager)
        FixedAspectRatioViewPager viewPager;
        @BindView(R.id.circlePageIndicator)
        CirclePageIndicator circlePageIndicator;

        @BindView(R.id.wv_details_text)
        WebView wvDetailsText;

    }

    @Override
    public void onBindViewHolder(TopicContentViewHolder vh, final int position) {
        Log.d("SimpleAdapter", "BindViewHolder");
        ModelTopic topic =  mData.get(position);

        final int curTextColor = NightModeFragment.getCurrentTextColor(mContext, topic.isNightMode());
        vh.detailsHeaderText.setTextColor(curTextColor);

但我有意外的滚动。 我想这是因为调用notifyItemChanged时调用了我的方法onCreateViewHolder

以下是我的日志输出：

05-19 17:15:38.620 27303-27303 D/SimpleAdapter: createViewHolder
05-19 17:15:38.640 27303-27303 D/SimpleAdapter: BindViewHolder
//all above called when I enter fragment and adapter is created

05-19 17:15:48.535 27303-27303 D/SimpleAdapter: createViewHolder
05-19 17:15:48.555 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() first time

05-19 17:15:50.447 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() 2 time

05-19 17:15:52.910 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() 3 time

05-19 17:15:53.183 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() 4 time

如您所见，onCreateViewHolder调用了两次。第一次是显而易见的，但第二次对我来说是个谜。

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这里有什么帮助吗？

似乎意外的滚动最终是您要解决的问题，您能否更准确地描述您看到的内容，以便我们了解问题？当我调用notifyItemChanged（）时，我看到我的列表一直滚动到开头。下次调用notifyItemChanged（）时，它将保持静止。3时间-保持静止。看看日志输出。

05-19 17:15:38.620 27303-27303 D/SimpleAdapter: createViewHolder
05-19 17:15:38.640 27303-27303 D/SimpleAdapter: BindViewHolder
//all above called when I enter fragment and adapter is created

05-19 17:15:48.535 27303-27303 D/SimpleAdapter: createViewHolder
05-19 17:15:48.555 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() first time

05-19 17:15:50.447 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() 2 time

05-19 17:15:52.910 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() 3 time

05-19 17:15:53.183 27303-27303 D/SimpleAdapter: BindViewHolder
//above called when I change notifyItemChanged() 4 time