Book details activity using the databinding library.

BookDetailsActivityDataBindingDemo.java

package com.msvs.bookshelf.activities;

import android.databinding.BindingAdapter;
import android.databinding.DataBindingUtil;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ImageView;

import com.msvs.bookshelf.R;
import com.msvs.bookshelf.databinding.ActivityBookDetailsActivityDataBindingDemoBinding;
import com.msvs.bookshelf.model.entities.Book;
import com.msvs.bookshelf.model.repositories.BooksRepository;
import com.squareup.picasso.Picasso;

public class BookDetailsActivityDataBindingDemo extends AppCompatActivity {
    public static final String ARG_BOOK_ID = "detailsBookId";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ActivityBookDetailsActivityDataBindingDemoBinding binding =
                DataBindingUtil.setContentView(this,
                        R.layout.activity_book_details_activity_data_binding_demo);

        long mBookId = getIntent().getExtras().getLong(ARG_BOOK_ID);
        Book book = BooksRepository.getInstance().getBook(mBookId);
        binding.setBook(book);
    }

    //TODO: move to the BindingUtils class
    @BindingAdapter({"bind:imageUrl"})
    public static void loadBookCover(ImageView imageView, String url){
        Picasso.with(imageView.getContext()).load(url).into(imageView);
    }
}