要实现在Android中使用ItemTouchHelper部分滑动的功能，你可以按照以下步骤进行操作：

1. 首先，确保你的项目中已经添加了RecyclerView和ItemTouchHelper的依赖。

2. 创建一个类实现ItemTouchHelper.Callback接口，该类将处理滑动和拖动的操作。以下是一个示例：

public class ItemTouchHelperCallback extends ItemTouchHelper.Callback {
    
    private final ItemTouchHelperAdapter mAdapter;

    public ItemTouchHelperCallback(ItemTouchHelperAdapter adapter) {
        mAdapter = adapter;
    }

    @Override
    public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
        int dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
        int swipeFlags = ItemTouchHelper.START | ItemTouchHelper.END;
        return makeMovementFlags(dragFlags, swipeFlags);
    }

    @Override
    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
        mAdapter.onItemMove(viewHolder.getAdapterPosition(), target.getAdapterPosition());
        return true;
    }

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

3. 创建一个接口来定义Adapter和ItemTouchHelperCallback之间的交互。以下是一个示例：

public interface ItemTouchHelperAdapter {
    void onItemMove(int fromPosition, int toPosition);
    void onItemDismiss(int position);
}

4. 在你的RecyclerView的Adapter中实现ItemTouchHelperAdapter接口，并将ItemTouchHelperCallback传递给ItemTouchHelper。以下是一个示例：

public class MyAdapter extends RecyclerView.Adapter implements ItemTouchHelperAdapter {

    private List mData;

    public MyAdapter(List data) {
        mData = data;
    }

    @Override
    public void onItemMove(int fromPosition, int toPosition) {
        String item = mData.get(fromPosition);
        mData.remove(fromPosition);
        mData.add(toPosition, item);
        notifyItemMoved(fromPosition, toPosition);
    }

    @Override
    public void onItemDismiss(int position) {
        mData.remove(position);
        notifyItemRemoved(position);
    }

    // ... 其他方法实现

    public static class ViewHolder extends RecyclerView.ViewHolder {
        // ... ViewHolder实现
    }
}

5. 最后，在你的Activity或Fragment中，创建ItemTouchHelper实例并将其附加到RecyclerView上。以下是一个示例：

public class MainActivity extends AppCompatActivity {

    private RecyclerView mRecyclerView;
    private MyAdapter mAdapter;
    private ItemTouchHelper mItemTouchHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mRecyclerView = findViewById(R.id.recyclerView);

        // 初始化RecyclerView和Adapter
        List data = new ArrayList<>();
        // 添加数据到data列表
        mAdapter = new MyAdapter(data);
        mRecyclerView.setAdapter(mAdapter);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

        // 创建ItemTouchHelper实例
        ItemTouchHelper.Callback callback = new ItemTouchHelperCallback(mAdapter);
        mItemTouchHelper = new ItemTouchHelper(callback);
        mItemTouchHelper.attachToRecyclerView(mRecyclerView);
    }
}

这样，你就可以在Android中使用ItemTouchHelper实现部分滑动的功能了。