在安卓中实现拖放自动滚动的解决方法可以通过使用RecyclerView和ItemTouchHelper结合使用来实现。下面是一个示例代码：

1. 首先，创建一个DragScrollController类，用于监听拖动事件和自动滚动：

public class DragScrollController extends ItemTouchHelper.Callback {

    private RecyclerView recyclerView;
    private LinearLayoutManager layoutManager;
    private int scrollSpeed = 8; // 滚动速度

    public DragScrollController(RecyclerView recyclerView) {
        this.recyclerView = recyclerView;
        this.layoutManager = (LinearLayoutManager) recyclerView.getLayoutManager();
    }

    @Override
    public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
        return makeMovementFlags(0, ItemTouchHelper.UP | ItemTouchHelper.DOWN);
    }

    @Override
    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
        return false;
    }

    @Override
    public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
    }

    @Override
    public void onSelectedChanged(RecyclerView.ViewHolder viewHolder, int actionState) {
        super.onSelectedChanged(viewHolder, actionState);
        if (actionState == ItemTouchHelper.ACTION_STATE_DRAG) {
            // 开始拖动时开始自动滚动
            startAutoScroll();
        }
    }

    @Override
    public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
        super.clearView(recyclerView, viewHolder);
        // 停止自动滚动
        stopAutoScroll();
    }

    private void startAutoScroll() {
        recyclerView.removeCallbacks(scrollRunnable);
        recyclerView.post(scrollRunnable);
    }

    private void stopAutoScroll() {
        recyclerView.removeCallbacks(scrollRunnable);
    }

    private Runnable scrollRunnable = new Runnable() {
        @Override
        public void run() {
            int firstVisibleItemPosition = layoutManager.findFirstVisibleItemPosition();
            int lastVisibleItemPosition = layoutManager.findLastVisibleItemPosition();
            int itemCount = recyclerView.getAdapter().getItemCount();

            if (firstVisibleItemPosition == RecyclerView.NO_POSITION ||
                    lastVisibleItemPosition == RecyclerView.NO_POSITION) {
                return;
            }

            if (firstVisibleItemPosition == 0 && lastVisibleItemPosition == itemCount - 1) {
                // 所有项都可见，停止滚动
                stopAutoScroll();
                return;
            }

            if (firstVisibleItemPosition > 0 && lastVisibleItemPosition < itemCount - 1) {
                // 所有项都可见，停止滚动
                stopAutoScroll();
                return;
            }

            if (firstVisibleItemPosition == 0) {
                recyclerView.smoothScrollBy(0, -scrollSpeed);
            } else if (lastVisibleItemPosition == itemCount - 1) {
                recyclerView.smoothScrollBy(0, scrollSpeed);
            }

            recyclerView.postDelayed(scrollRunnable, 10);
        }
    };
}

2. 在你的Activity或Fragment中，使用DragScrollController来设置拖放自动滚动：

RecyclerView recyclerView = findViewById(R.id.recyclerView);
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);

DragScrollController dragScrollController = new DragScrollController(recyclerView);
ItemTouchHelper itemTouchHelper = new ItemTouchHelper(dragScrollController);
itemTouchHelper.attachToRecyclerView(recyclerView);

这样，当你拖动RecyclerView中的项时，如果到达边界，它将开始自动滚动。你可以根据需要调整滚动速度和触发自动滚动的边界条件。