PicassoListImages.java

package com.example.asamles.app.picassogridimage;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;

import com.example.asamles.app.R;

import java.util.ArrayList;

public class PicassoListImages extends Fragment implements AdapterView.OnItemClickListener {

    public static final String STACK_NAME = "image";
    public static final String IMAGES = "images";
    private ArrayList<String> imgs = new ArrayList<String>();
    private ArrayList<String> list = new ArrayList<String>();

    public static PicassoListImages newInstance(ArrayList<String> imgs) {
        PicassoListImages fragment = new PicassoListImages();
        Bundle args = new Bundle();
        args.putStringArrayList(IMAGES, imgs);
        fragment.setArguments(args);
        return fragment;
    }

    public PicassoListImages() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.list_images_fragment, container, false);
        imgs = getArguments().getStringArrayList(IMAGES);
        if (imgs != null) {
            for (int i = 1; i < imgs.size() + 1; i++) {
                list.add("Image " + i);
            }
        }
        ListView listMenu = (ListView) rootView.findViewById(R.id.list);
        listMenu.setOnItemClickListener(this);
        ImageListAdapter adapter = new ImageListAdapter(getActivity(), list, imgs);
        listMenu.setAdapter(adapter);
        return rootView;
    }

    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
        getActivity().getSupportFragmentManager().beginTransaction()
                .replace(R.id.container, ImagePager.newInstance(position, imgs))
                .addToBackStack(STACK_NAME)
                .commit();
    }
}