How to load image in Picasso correctly

**Hi, i’m trying load images from url like this: link

As you can see, the images have different sizes. For example, the first image is 1920×1280 in size. The second image is 720×11523 in size and the last image is 720×5420 in size.

But, this in my application looks like this:

1- The first image is cut off 
2- The rest of the images are not centered and do not occupy the entire width of the screen

In this link

As you can see, the images have different sizes. For example, the first image is 1702×1080 in size. The second image is 1170×1618 in size and the last image is 986×1238 in size.

In my application looks like this: same problems, images are cropped, not centered and do not occupy the entire width of the screen

This is my adapter layout:

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    style="@style/CardView.Light"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:layout_centerHorizontal="true"
    android:layout_gravity="center_horizontal"
    android:background="@color/blanco">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:background="@color/blanco">
        <ImageView
            android:layout_gravity="center_horizontal"
            android:id="@+id/ivPaginas"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="center"/>
    </LinearLayout>
</androidx.cardview.widget.CardView>

My adapter class:

public class TMOnlineLectorAdaptador extends RecyclerView.Adapter<TMOnlineLectorAdaptador.ViewHolder> {
    private ArrayList<TMOLectorClase> tmoLectorClases;
    private Context context;

    public TMOnlineLectorAdaptador(ArrayList<TMOLectorClase> tmoItems, Context context) {
        this.tmoLectorClases = tmoItems;
        this.context = context;
    }

    @NonNull
    @Override
    public TMOnlineLectorAdaptador.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.adaptador_lectortmo, parent, false);
        return new TMOnlineLectorAdaptador.ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull final TMOnlineLectorAdaptador.ViewHolder holder, int position) {
        TMOLectorClase tmoLectorClase = this.tmoLectorClases.get(position);
        Picasso.get().load(tmoLectorClase.getImg()).into(holder.iv);
    }

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

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        ImageView iv;

        public ViewHolder(@NonNull View view) {
            super(view);
            iv = view.findViewById(R.id.ivPaginas);
            view.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
        }
    }

    public void setFilter(ArrayList<TMOLectorClase> newList) {
        tmoLectorClases = new ArrayList<>();
        tmoLectorClases.addAll(newList);
        notifyDataSetChanged();
    }

    public void updateData(ArrayList<TMOLectorClase> items) {
        this.tmoLectorClases = items;
    }
}

My Activity layout:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".Activities.TMO.TMOnlineLector"
    android:background="@color/blanco"
    android:orientation="horizontal"
    android:gravity="center_horizontal">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="wrap_content"
        android:layout_height="match_parent">
        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/rvCapitulosSeleccion"
            android:layout_width="wrap_content"
            android:layout_height="match_parent" />
    </LinearLayout>
</RelativeLayout>

My activity class:

private String url = "";

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

    url = getIntent().getStringExtra("url");

    recyclerView = findViewById(R.id.rvCapitulosSeleccion);

    recyclerView.setHasFixedSize(true);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    adapter = new TMOnlineLectorAdaptador(tmoLectorClases, TMOnlineLector.this);
    recyclerView.setAdapter(adapter);

    Content content = new Content();
    content.execute();
}

private class Content extends AsyncTask<Void,Void, ArrayList<TMOLectorClase>> {

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }

    @Override
    protected void onPostExecute(ArrayList<TMOLectorClase> items) {
        super.onPostExecute(items);
        //Actualizar información
        adapter.updateData(items);
        adapter.notifyDataSetChanged();
    }

    @Override
    protected ArrayList<TMOLectorClase> doInBackground(Void... voids) {

        tmoLectorClases.clear();
        try {
            String nuevaUrl = Jsoup.connect(url).followRedirects(true).execute().url().toExternalForm();
            Log.d("Items", "Url: " + nuevaUrl);

            if(nuevaUrl.contains("/paginated")){
                nuevaUrl = nuevaUrl.replaceAll("/paginated", "/cascade");
                Log.d("items", "doInBackground: " + nuevaUrl);

                Document doc = Jsoup.connect(nuevaUrl).get();
                Log.d("Items", "Url: " + doc);

                Elements data = doc.select("div.img-container.text-center");
                for (Element e : data){
                    String imgUrl = "";
                    if(e.select("div.img-container.text-center").size() > 0)
                    imgUrl = e.select("img").get(0).attr("data-src");
                    Log.d("TAG", "doInBackground: " + imgUrl);
                    //String imgUrl = e.select("img").attr("data-src");
                    tmoLectorClases.add(new TMOLectorClase(imgUrl));
                }
            }else{
                Document doc = Jsoup.connect(nuevaUrl).get();

                Elements data = doc.select("div.img-container.text-center");
                for (Element e : data){
                    String imgUrl = e.select("img").attr("data-src");
                    Log.d("items", "doInBackground: "+ imgUrl);
                    tmoLectorClases.add(new TMOLectorClase(imgUrl));
                }
            }
        }  catch (IOException e) {
            e.printStackTrace();
        }
        return tmoLectorClases;
    }
}

How can I solve the mentioned problems?

Answer

Try using Picasso’s fit() function combined with a centerCrop() or centerInside(). You can read about these functions here.

Try changing onBindViewHolder to the following:

public void onBindViewHolder(@NonNull final TMOnlineLectorAdaptador.ViewHolder holder, 
                                                                            int position) {
        TMOLectorClase tmoLectorClase = this.tmoLectorClases.get(position);
        Picasso.with(context)
               .load(tmoLectorClase.getImg())
               .fit()
               .centerCrop()
               .into(holder.iv);
}