AlbumFull.java

package me.ccrama.redditslide.Fragments;

import android.animation.ValueAnimator;
import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;

import com.sothree.slidinguppanel.SlidingUpPanelLayout;

import net.dean.jraw.models.Submission;

import org.jetbrains.annotations.NotNull;

import java.util.List;

import me.ccrama.redditslide.Activities.CommentsScreen;
import me.ccrama.redditslide.Activities.Shadowbox;
import me.ccrama.redditslide.Adapters.AlbumView;
import me.ccrama.redditslide.ImgurAlbum.AlbumUtils;
import me.ccrama.redditslide.ImgurAlbum.Image;
import me.ccrama.redditslide.R;
import me.ccrama.redditslide.SubmissionViews.PopulateShadowboxInfo;


/**
 * Created by ccrama on 6/2/2015.
 */
public class AlbumFull extends Fragment {

    boolean gallery = false;
    private View list;
    private int i = 0;
    private Submission s;
    boolean hidden;
    View    rootView;


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        rootView = inflater.inflate(R.layout.submission_albumcard, container, false);
        PopulateShadowboxInfo.doActionbar(s, rootView, getActivity(), true);

        if (s.getUrl().contains("gallery")) {
            gallery = true;
        }

        list = rootView.findViewById(R.id.images);

        list.setVisibility(View.VISIBLE);
        final LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        ((RecyclerView) list).setLayoutManager(layoutManager);

        ((RecyclerView) list).setOnScrollListener(new RecyclerView.OnScrollListener() {

            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
                ValueAnimator va = null;

                if (dy > 0 && !hidden) {
                    hidden = true;

                    if (va != null && va.isRunning()) va.cancel();

                    final View base = rootView.findViewById(R.id.base);
                    va = ValueAnimator.ofFloat(1.0f, 0.2f);
                    int mDuration = 250; //in millis
                    va.setDuration(mDuration);
                    va.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                        public void onAnimationUpdate(ValueAnimator animation) {
                            Float value = (Float) animation.getAnimatedValue();
                            base.setAlpha(value);
                        }
                    });

                    va.start();

                } else if (hidden && dy <= 0) {
                    final View base = rootView.findViewById(R.id.base);

                    if (va != null && va.isRunning()) va.cancel();

                    hidden = false;
                    va = ValueAnimator.ofFloat(0.2f, 1.0f);
                    int mDuration = 250; //in millis
                    va.setDuration(mDuration);
                    va.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                        public void onAnimationUpdate(ValueAnimator animation) {
                            Float value = (Float) animation.getAnimatedValue();
                            base.setAlpha(value);
                        }
                    });

                    va.start();
                }
            }

            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                super.onScrollStateChanged(recyclerView, newState);
            }
        });

        final View.OnClickListener openClick = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ((SlidingUpPanelLayout) rootView.findViewById(R.id.sliding_layout)).setPanelState(
                        SlidingUpPanelLayout.PanelState.EXPANDED);
            }
        };
        rootView.findViewById(R.id.base).setOnClickListener(openClick);
        final View title = rootView.findViewById(R.id.title);
        title.getViewTreeObserver()
                .addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                    @Override
                    public void onGlobalLayout() {
                        ((SlidingUpPanelLayout) rootView.findViewById(
                                R.id.sliding_layout)).setPanelHeight(title.getMeasuredHeight());
                        title.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    }
                });
        ((SlidingUpPanelLayout) rootView.findViewById(R.id.sliding_layout)).addPanelSlideListener(
                new SlidingUpPanelLayout.PanelSlideListener() {
                    @Override
                    public void onPanelSlide(View panel, float slideOffset) {

                    }

                    @Override
                    public void onPanelStateChanged(View panel,
                            SlidingUpPanelLayout.PanelState previousState,
                            SlidingUpPanelLayout.PanelState newState) {
                        if (newState == SlidingUpPanelLayout.PanelState.EXPANDED) {
                            rootView.findViewById(R.id.base)
                                    .setOnClickListener(new View.OnClickListener() {
                                        @Override
                                        public void onClick(View v) {
                                            Intent i2 =
                                                    new Intent(getActivity(), CommentsScreen.class);
                                            i2.putExtra(CommentsScreen.EXTRA_PAGE, i);
                                            i2.putExtra(CommentsScreen.EXTRA_SUBREDDIT,
                                                    ((Shadowbox) getActivity()).subreddit);
                                            (getActivity()).startActivity(i2);
                                        }
                                    });
                        } else {
                            rootView.findViewById(R.id.base).setOnClickListener(openClick);
                        }
                    }
                });

        new LoadIntoRecycler(s.getUrl(), getActivity()).executeOnExecutor(
                AsyncTask.THREAD_POOL_EXECUTOR);

        return rootView;
    }

    public class LoadIntoRecycler extends AlbumUtils.GetAlbumWithCallback {

        String url;

        public LoadIntoRecycler(@NotNull String url, @NotNull Activity baseActivity) {
            super(url, baseActivity);
            //todo htis dontClose = true;
            this.url = url;
        }

        @Override
        public void doWithData(final List<Image> jsonElements) {
            super.doWithData(jsonElements);
            AlbumView adapter = new AlbumView(baseActivity, jsonElements, 0,
                    s.getSubredditName());
            ((RecyclerView) list).setAdapter(adapter);
        }

    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Bundle bundle = this.getArguments();
        i = bundle.getInt("page", 0);
        if (((Shadowbox) getActivity()).subredditPosts == null
                || ((Shadowbox) getActivity()).subredditPosts.getPosts().size() < bundle.getInt(
                "page", 0)) {
            getActivity().finish();
        } else {
            s = ((Shadowbox) getActivity()).subredditPosts.getPosts().get(bundle.getInt("page", 0));
        }
    }


}