Android若干条并排RecyclerView滑动实时联动

以水平方向并排排列的两条RecyclerView为例，实现一个简单的功能：这两个RecyclerView要实时联合滚动，即其中任意一个RecyclerView，将触发其余所有RecyclerView同时滚动相同。
写布局：

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal"> <android.support.v7.widget.RecyclerView android:id="@+id/recycler_view_1" android:layout_width="180dp" android:layout_height="match_parent" /> <View android:layout_width="1px" android:layout_height="match_parent" android:background="#e0e0e0" /> <android.support.v7.widget.RecyclerView android:id="@+id/recycler_view_2" android:layout_width="180dp" android:layout_height="match_parent" /> </LinearLayout> 

代码：

package zhangphil.recyclerview; import android.graphics.Color; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import java.util.ArrayList; public class RecyclerViewActivity extends AppCompatActivity { private RecyclerView mRecyclerView1; private RecyclerView mRecyclerView2; private ArrayList<Integer> mItems; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.recycler_view_activity); mItems = new ArrayList<>(); for (int i = 0; i < 100; i++) { mItems.add(i); } initRecyclerView1(); initRecyclerView2(); mRecyclerView1.addOnScrollListener(new RecyclerView.OnScrollListener() { @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { if (recyclerView.getScrollState() != RecyclerView.SCROLL_STATE_IDLE) { mRecyclerView2.scrollBy(dx, dy); } } }); mRecyclerView2.addOnScrollListener(new RecyclerView.OnScrollListener() { @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { if (recyclerView.getScrollState() != RecyclerView.SCROLL_STATE_IDLE) { mRecyclerView1.scrollBy(dx, dy); } } }); } private void initRecyclerView1() { mRecyclerView1 = findViewById(R.id.recycler_view_1); LinearLayoutManager layoutManager = new LinearLayoutManager(this); layoutManager.setOrientation(LinearLayoutManager.VERTICAL); mRecyclerView1.setLayoutManager(layoutManager); RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(1); mRecyclerView1.setAdapter(mAdapter); } private void initRecyclerView2() { mRecyclerView2 = findViewById(R.id.recycler_view_2); LinearLayoutManager layoutManager = new LinearLayoutManager(this); layoutManager.setOrientation(LinearLayoutManager.VERTICAL); mRecyclerView2.setLayoutManager(layoutManager); RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(2); mRecyclerView2.setAdapter(mAdapter); } private class RecyclerViewAdapter extends RecyclerView.Adapter<MyVH> { private int id; public RecyclerViewAdapter(int id) { this.id = id; } @NonNull @Override public MyVH onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { View view = LayoutInflater.from(getApplicationContext()).inflate(android.R.layout.simple_list_item_2, parent, false); return new MyVH(view); } @Override public void onBindViewHolder(@NonNull MyVH holder, int position) { holder.text1.setText("RecyclerView:" + id); holder.text2.setText(mItems.get(position) + ""); switch (id) { case 1: holder.text1.setBackgroundColor(Color.RED); break; case 2: holder.text1.setBackgroundColor(Color.BLUE); break; } } @Override public int getItemCount() { return mItems.size(); } } private class MyVH extends RecyclerView.ViewHolder { public TextView text1; public TextView text2; public MyVH(View itemView) { super(itemView); text1 = itemView.findViewById(android.R.id.text1); text1.setTextColor(Color.WHITE); text2 = itemView.findViewById(android.R.id.text2); text2.setTextColor(Color.DKGRAY); } } } 

同时滑动其中一条，然后第二条也实时联合滚动