Moudiz Moudiz -3 years ago 120
Android Question

two recylcerview to be scroll in one list

I have 2 recyclerView as the below image, the problem when I scroll the second recylcer view the first one recycler still fixed. I want the first to disappear when i scroll down in the second recyclerview. and if i scrolled above , the recyclerview 1 to be appeared. how to do that ?

enter image description here

Main activity code:

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// initToolbars();

recyclerView = (RecyclerView) findViewById(R.id.recyclerview1);
recylerViewLayoutManager = new LinearLayoutManager(context,LinearLayoutManager.HORIZONTAL,false);
recyclerView.setLayoutManager(recylerViewLayoutManager);
recyclerViewAdapter = new RecyclerViewAdapter(MainActivity.this, subjects,images);
recyclerView.setAdapter(recyclerViewAdapter);


MainGridRecView = (RecyclerView) findViewById(R.id.maingridrc);
MainGridRecViewLayoutManager = new GridLayoutManager(context,2);
MainGridRecView.setLayoutManager(MainGridRecViewLayoutManager);
MainGridRecViewAdapter = new MainGridRecyclerViewAdapter(MainActivity.this, subjects,images);
MainGridRecView.setAdapter(MainGridRecViewAdapter);


activity xml:



<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/liner1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">

<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">

<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />

</android.support.design.widget.AppBarLayout>


<TextView
android:id="@+id/textView3"
android:layout_width="match_parent"
android:layout_height="25dp"
android:layout_above="@+id/recyclerview1"
android:gravity="center"
android:background="#10bcc9"
android:textColor="@android:color/white"
android:text="New Games." />

<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerview1"
android:layout_width="wrap_content"
android:layout_height="140dp"
android:scrollbars="horizontal" />

<TextView
android:id="@+id/textView4"
android:layout_width="match_parent"
android:layout_height="25dp"
android:layout_below="@+id/recyclerview1"
android:gravity="center"
android:background="#10bcc9"
android:textColor="@android:color/white"
android:text="Used Games." />

<android.support.v7.widget.RecyclerView
android:id="@+id/maingridrc"
android:layout_width="wrap_content"
android:layout_height="330dp"
android:layout_marginTop="5dp"
android:scrollbars="vertical" />

<!-- <android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
android:src="@android:drawable/ic_dialog_email" />-->
</LinearLayout>


adapter

public class RecyclerViewAdapter extends RecyclerView.Adapter<Viewholder>{

String[] SubjectValues;
String[] imageValues;
Context mContext;
View view1;
ViewHolder viewHolder1;
// TextView textView;

public RecyclerViewAdapter(Context context,String[] SubjectValues1, String[] images){

SubjectValues = SubjectValues1;
imageValues= images;
mContext = context;
}

public static class ViewHolder extends RecyclerView.ViewHolder{

public ViewHolder(View v){

super(v);

}
}

@Override
public Viewholder onCreateViewHolder(ViewGroup parent, int viewType){

view1 = LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_items,parent,false);

// viewHolder1 = new Viewholder(view1);

Viewholder vh = new Viewholder(view1, new Viewholder.IMyViewHolderClicks() {
public void onPotato(View caller) { Log.d("VEGETABLES", "Poh-tah-tos");
Intent intent = new Intent(mContext,SingleObjectActivity.class);
mContext.startActivity(intent);
};
public void onTomato(ImageView callerImage) {
Log.d("VEGETABLES", "To-m8-tohs");

// v1 CategoryList mDataset = new CategoryList(getOrder(), getId(), item.getUrl(), item.getUserName(), item.getLikes());

Intent intent = new Intent(mContext,SingleObjectActivity.class);
mContext.startActivity(intent);
}
});

return vh;
}

@Override
public void onBindViewHolder(Viewholder holder, int position){

holder.txtViewTitle.setText(SubjectValues[position]);
holder.imgViewIcon.setImageResource(R.drawable.ghost_recon);
}

@Override
public int getItemCount(){

return SubjectValues.length;
}
}


recycler xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">

<ImageView
android:id="@+id/imagecateg"
android:layout_width="180dp"
android:layout_height="160dp"
android:layout_alignParentTop="true"
/>

<TextView
android:id="@+id/txtview"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_below="@+id/imagecateg"
android:paddingLeft="35dp"
android:textSize="15dp"
android:textStyle="bold"
android:background="#f4e04c"
android:textColor="@color/colorPrimary"
/>
</RelativeLayout>


edit

enter image description here

Answer Source

Have a look at below example,

MainActivity.class

public class MainActivity extends AppCompatActivity {

    List<String> horizontalArrayList = new ArrayList<>();
    List<String> verticalArrayList = new ArrayList<>();

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

        verticalArrayList.add("fake entry");

        for(int i=0;i<20;i++){
            horizontalArrayList.add("user "+i);
        }
        for(int i=0;i<40;i++){
            verticalArrayList.add("user "+i);
        }

        RecyclerView verticalRecyclerView = (RecyclerView) findViewById(R.id.verticalRecyclerView);
        verticalRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        VerticalAdapter mAdapter = new VerticalAdapter(this, horizontalArrayList,verticalArrayList);
        verticalRecyclerView.setAdapter(mAdapter);
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.recyclerviewdemo.android.activities.MainActivity">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/verticalRecyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scrollbars="vertical" />
</RelativeLayout>

HorizontalAdapter.class

public class HorizontalAdapter extends RecyclerView.Adapter<HorizontalAdapter.MyViewHolder> {

    private List<String> mArrayList = new ArrayList<>();

    private Context mContext;

    public HorizontalAdapter(Context mContext, List<String> mArrayList) {
        this.mContext = mContext;
        this.mArrayList = mArrayList;
    }

    @Override
    public HorizontalAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(mContext).inflate(R.layout.item_horizontal, parent, false);
        return new MyViewHolder(view);
    }

    @Override
    public void onBindViewHolder(HorizontalAdapter.MyViewHolder holder, int position) {
        holder.textView.setText(mArrayList.get(position));
    }

    @Override
    public int getItemCount() {
        return mArrayList.size();
    }

    class MyViewHolder extends RecyclerView.ViewHolder {
        TextView textView;

        public MyViewHolder(View v) {
            super(v);
            textView = (TextView) v.findViewById(R.id.textView);
        }
    }
}

item_horizontal.xml

<LinearLayout 
     xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:background="@color/colorAccent"
        android:padding="5dp" />
</LinearLayout>

VerticalAdapter.class

public class VerticalAdapter extends RecyclerView.Adapter<VerticalAdapter.MyViewHolder> {

    private int ITEM_TEXT_VIEW = 0, ITEM_HEADER_VIEW = 1;

    private List<String> mVerticalArrayList = new ArrayList<>();
    private List<String> mHorizontalArrayList = new ArrayList<>();

    private Context mContext;


    public VerticalAdapter(Context mContext, List<String> mHorizontalArrayList,List<String> mVerticalArrayList) {
        this.mContext = mContext;
        this.mVerticalArrayList = mVerticalArrayList;
        this.mHorizontalArrayList = mHorizontalArrayList;
    }

    @Override
    public VerticalAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(mContext).inflate(R.layout.item_vertical, parent, false);
        return new MyViewHolder(view);
    }

    @Override
    public void onBindViewHolder(VerticalAdapter.MyViewHolder holder, int position) {
        if (getItemViewType(position) == ITEM_HEADER_VIEW) {
            holder.recyclerView.setLayoutManager(new LinearLayoutManager(mContext,
                LinearLayoutManager.HORIZONTAL, false));
            HorizontalAdapter mAdapter = new HorizontalAdapter(mContext, mHorizontalArrayList);
            holder.recyclerView.setAdapter(mAdapter);
            holder.textView.setVisibility(View.GONE);
        } else {
            holder.textView.setText(mVerticalArrayList.get(position));
            holder.recyclerView.setVisibility(View.GONE);
        }
    }

    @Override
    public int getItemCount() {
        return mVerticalArrayList.size();
    }

    @Override
    public int getItemViewType(int position) {
        if (position == 0) {
            return ITEM_HEADER_VIEW;
        } else {
            return ITEM_TEXT_VIEW;
        }
    }

    class MyViewHolder extends RecyclerView.ViewHolder {
        TextView textView;
        RecyclerView recyclerView;

        public MyViewHolder(View v) {
            super(v);
            textView = (TextView) v.findViewById(R.id.textView);
            recyclerView = (RecyclerView) v.findViewById(R.id.horizontalRecyclerView);
        }
    }
}

item_vertical.xml

<LinearLayout     xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/horizontalRecyclerView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>
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