RecyclerView item with different height
<p>I want to implement RecyclerView with different item height. Item contains  NetworkImageView. I set for NetworkImageView <code>layout_height="wrap_content"</code> and for all parent of NetworkImageView. But I am faced with an issue. When scrolling and reaching the end, and then scrolling up I get strange behavior of RecyclerView. And sometimes some images do not show. But I noticed if I set NetworkImageView <code>layout_height</code> to some specific value it's working fine. <br><br> This is list_row.xml</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;

&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"

    &gt;
    &lt;android.support.v7.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/cv"
        android:background="#FFFFFF"
        android:layout_marginLeft="15dp"
        android:layout_marginRight="15dp"
        android:layout_marginBottom="7dp"
        android:layout_marginTop="7dp"
        card_view:cardCornerRadius="2dp"
        card_view:cardElevation="1dp"
        card_view:cardBackgroundColor="#FFFFFF"

        &gt;
        &lt;LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"&gt;
                &lt;TextView
                    android:id="@+id/title"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="13dp"
                    android:textColor="#000000"
                    android:text="Получайте бонусы от нашей компании"
                    android:textStyle="bold"/&gt;

                &lt;com.android.volley.toolbox.NetworkImageView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/image_net"
                    android:src="@drawable/wait"
                    android:layout_marginLeft="13dp"
                    android:layout_marginRight="13dp"
                    android:adjustViewBounds="true"
                    /&gt;
                &lt;TextView
                    android:id="@+id/details"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="13dp"
                    android:textColor="@android:color/holo_red_light"
                    android:text="@string/tv_under"/&gt;

        &lt;/LinearLayout&gt;
    &lt;/android.support.v7.widget.CardView&gt;
&lt;/LinearLayout&gt;
</code></pre>

<p><br><br> RecyclerView.xml</p>

<pre><code>&lt;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=".fragments.A_Fragment"
    android:background="#E8E8E8"&gt;

    &lt;android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/rv"
        /&gt;

&lt;/RelativeLayout&gt;
</code></pre>

<p><br><br> RecyclerViewAdapter</p>

<pre><code>public class NewsAdapter extends RecyclerView.Adapter&lt;NewsAdapter.PrudactViewHolder&gt; {

List&lt;HashMap&lt;String,String&gt;&gt; newsList;
public Context mContext;
public static ItemAdd add;
public static FragmentListItemClick fragmentListItemClick;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();

public NewsAdapter(List&lt;HashMap&lt;String,String&gt;&gt; news, Context context){
    this.newsList = news;
    this.mContext = context;

}

public NewsAdapter(){

}

@Override
public PrudactViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View  v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_of_news, parent, false);
    PrudactViewHolder pvh = new PrudactViewHolder(v,mContext);
    return pvh;
}


@Override
public void onBindViewHolder( PrudactViewHolder prudactViewHolder, int i) {

    /*NewsModel newsModel = newsList.get(i);
    prudactViewHolder.title.setText(String.valueOf(newsModel.getTitle()));
    prudactViewHolder.description.setText(String.valueOf(newsModel.getDescription()));
    prudactViewHolder.thumbNail.setDefaultImageResId(R.drawable.wait);
   prudactViewHolder.thumbNail.setImageUrl(newsModel.getId_image(), imageLoader);*/

    if (imageLoader == null)
        imageLoader = AppController.getInstance().getImageLoader();
    HashMap&lt;String,String&gt; news = newsList.get(i);
    prudactViewHolder.title.setText(news.get(A_Fragment.TITLE));
    //prudactViewHolder.description.setText(news.get(A_Fragment.DESCRIPTION));
    if (news.get(A_Fragment.IMG_URL)!=null)
    prudactViewHolder.thumbNail.setImageUrl(news.get(A_Fragment.IMG_URL), imageLoader);
    else prudactViewHolder.thumbNail.setImageUrl(news.get(A_Fragment.IMG_URL), imageLoader);

}

@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
    super.onAttachedToRecyclerView(recyclerView);
}


@Override
public int getItemCount() {

    return newsList.size();
}

public static class PrudactViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{


    TextView title,description;
    NetworkImageView thumbNail;

    public PrudactViewHolder(View itemView,Context context) {
        super(itemView);

        title = (TextView)itemView.findViewById(R.id.title);
        description = (TextView)itemView.findViewById(R.id.details);
        thumbNail = (NetworkImageView) itemView
                .findViewById(R.id.image_net);

        description.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {

        A_Category_B a_category_b = new A_Category_B();
        fragmentListItemClick.itemClicked(a_category_b);

    }
}

@Override
public int getItemViewType(int position) {
    return super.getItemViewType(position);
}


public void setfragmentclick(FragmentListItemClick fr){
    fragmentListItemClick = fr;
}
}
</code></pre>

<p>And Place where I use it</p>

<pre><code> public static final String TITLE = "title";
    public static final String DESCRIPTION = "des";
    public static final String IMG_URL = "img_url";

    NewsAdapter adapter;
    RecyclerView rv;

    ArrayList&lt;HashMap&lt;String,String&gt;&gt; data =  new ArrayList&lt;HashMap&lt;String, String&gt;&gt;();
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_a, container, false);
        rv = (RecyclerView) view.findViewById(R.id.rv);

        setHasOptionsMenu(true);
        data.clear();
        HashMap&lt;String, String&gt; hm1 = new HashMap&lt;String, String&gt;();

        // some code
       data.add(h1);
       data.add(h2);
       data.add(h2);


        adapter = new NewsAdapter(data,getContext());
        LinearLayoutManager llm = new LinearLayoutManager(rv.getContext());
        rv.setLayoutManager(llm);
        rv.setHasFixedSize(true);
        rv.setAdapter(adapter);
        return view;
    }
}
</code></pre>