Android视图中包含的惰性列在滚动时会出现很大的延迟。

解决这个问题的方法是通过使用“重用视图”来优化您的RecyclerView适配器。具体来说，您可以检查您的适配器中每个ViewHolder的实现，以确保您在必要时正确地使用缓存视图。

以下是一个例子，展示了如何在共享单个ViewStub实例的情况下使用“策略”来适当重用视图：

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
 
    private final LayoutInflater mInflater;
 
    private final ViewStub mCachedViewStub;
 
    private int mLastPosition = -1;
 
    private final RecyclingLayoutManager mLayoutManager;
 
    private List<MyObject> mData = new ArrayList<>();
 
    public MyAdapter(Context context, RecyclerView recyclerView) {
        mInflater = LayoutInflater.from(context);
        mCachedViewStub = new ViewStub(context);
        mLayoutManager = new RecyclingLayoutManager(context);
        recyclerView.setLayoutManager(mLayoutManager);
        recyclerView.setAdapter(this);
    }
 
    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        final View view = mCachedViewStub.inflate();
        final ViewHolder holder = new ViewHolder(view);
        mLayoutManager.registerViewHolder(holder);
        return holder;
    }
 
    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        final MyObject item = mData.get(position);
        if (item != null) {
            holder.bind(item);
            holder.itemView.setVisibility(View.VISIBLE);
            mLastPosition = position;
        } else {
            holder.itemView.setVisibility(View.GONE);
        }
    }
 
    @Override
    public int getItemCount() {
        return mData.size();
    }
 
    public void swapData(List<MyObject> data) {
        mData = data != null ? new ArrayList<>(data) : new ArrayList<>();
        notifyDataSetChanged();
    }
 
    static class RecyclingLayoutManager extends LinearLayoutManager {
 
        private final SparseArray<MyAdapter.ViewHolder> mViewHolders = new SparseArray<>();
 
        RecyclingLayoutManager(Context context) {
            super(context);
        }
 
        void registerViewHolder(MyAdapter.ViewHolder holder) {
            mViewHolders.append(holder.hashCode(), holder);
        }
 
        @NonNull
        @Override
        public RecyclerView.LayoutParams generateDefaultLayoutParams() {
            return new MyLayoutParams(RecyclerView.LayoutParams.MATCH_PARENT, RecyclerView.LayoutParams.WRAP_CONTENT);
        }
 
        @Override
        public RecyclerView.LayoutParams generateLayoutParams(Context c, AttributeSet attrs) {
            return new MyLayoutParams(c, attrs);
        }
 
        @Override
        public RecyclerView.LayoutParams generateLayoutParams(ViewGroup.LayoutParams lp) {
            return new MyLayoutParams(lp);
        }
 
        @Override